Liu Hang Yu Portfolio 2024.1

HANG YU LIU Architecture and Landscape Portfolio

Liu Hang Yu

劉航宇

Website: https://liuhangyu1999.github.io/#/ Email: liuhangyu1999@gmail.com Mobile: +86 18589312493

Contents SCENERY OF EVERYDAYNESS

The Design of a Middle School Based on the Form of Social Organizing (design training in semester 8)

COMPREHENSIVE OUTDOOR SPORTS FACILITY

Education Xi’an University of Architecture and Technology

Bachelor of Landscape Architecture ( 5 years program ) 2018-2023

A Semi Outdoor Stadium in a Sports Park (personal part of studio work in semester 6)

Work Experience

THE LAST SCRAPERS

Shanghai, China Landscape Design Intern 2021.7-2021.8

Tongji Architectural Design (Group) Co., Ltd.

Recreation and Ecological Restoration Devices to Cope with Anti Urbanization (groupwork for EVOLO competition)

HABITAT SYMBIOSIS

National Territory Ecological Planning of Baoji Municipal & Loong County (studio work in semester 8)

WORKS DURING INTERNSHIP

Works In Tongji Design Group Co.,LTD. Works In China Railway Siyuan Survey And Design Group Co.,LTD.

Modeling, drafting and conceptual design Participated in waterfront landscape, urban design and long-span bridge design projects, including the green infrastructure project of Wuhan Sino French Eco City, Ningbo Zhenpu Bridge Project and the landscape project of Fuyao University of Science and Technology.

China Railway Siyuan Survey And Design Group Co.,Ltd.

Kunming, China Landscape and Architectural Design Intern 2022.8

Landscape and architectural design Participated in the design of subway buildings and surrounding landscape. Participated in the design of two pedestrian bridges in Kunming city and the reconstruction of the reception center gate of Yunnan Provincial Police Department.

NIKKEN SEKKEI LTD

Shanghai office, China Architectural Design Intern 2022.11-now Modeling, detail design, deepening design Office and commercial building design in Shanghai Metro Line 9 Jinqiao Section Comprehensive Development Project.

Research Project XAUAT & Guangzhou S.P.I Design Co., LTD Cooperative Research Projects

Xi'an, China Programmer and Designer 2021-2022

Participate in the development and testing of parametric design tools.

Participate in data analysis and scheme design.

SCENERY OF EVERYDAYNESS The Design of a Middle School Based on the Form of Social Organizing Comparison of Several Modes of School Buildings

Concept The design focuses on breaking the geographical relationship of administrative classes and encouraging the creation of a complex and diversified social network. Strengthen the number of social organizations such as associations and special courses, provide their long-term maintenance system and spatial mechanism, encourage the integration and communication between organizations, provide students with diversified social possibilities and meet increasingly diversified life and education needs.

Single Corridor Layout

Inner Corridor Layout

Expand the Corridor to Provide Public Space

Public Courtyard As Community Space

entrance (vehicle) Teachers' appartment

Site Conditions

Students' appartment Garage entrance

This scheme is an independent research design, and the site is selected according to the bidding documents of Shenzhen No. 32 Senior High School. The site is located in the key urban renewal unit of Xinqiao East Area, adjacent to Hengchangrong Hi tech Industrial Park in the west and Changliubei Reservoir and Wangtian Mountain in the east.

The main issues to be considered are the response to the hot and humid climate, the surrounding buildings and traffic conditions, and the utilization of landscape resources in the east.

Academic Building

Strategy Mainly Socialize in Class, Lacking Opportunities to Socialize with Other Classes

Low Utilization Rate of Dark Inner Corridor, Which Actually Hinders Occasional Communication

Facilitate Casual Socializing, but Lack Stable Motivation

A Continuous, Stable and Visible Form of Communication Linked by Community Activities

Runway (two tracks)

The semi compound layout facing the east reservoir and mountain landscape is adopted; Set dynamic and static, open and close multi-level blank space and diversified facilities to meet the needs of independent learning; Set special classrooms adjacent to ordinary classrooms to improve their utilization and traffic efficiency; The large-scale open communication space is formed between the class groups by using the combination of hospital and platform withdrawal operations to stimulate cross class active communication; The placement of open and demonstrative community activity spaces of different sizes and scales promotes the birth of stable organizations based on business relationship; Set up continuous large area shared activity rooms to promote mutual communication between clubs;

Garden

Techno-economic Indexes

Skirt Building

Location Analysis

Land Area : 42057.11 Square Meters Total Building Area : 67888.25 Square Meters Plot Ratio 1.61 Building Coverage: 0.33 Green Space Ratio 0.53 Classes : 48 Capacity of Students : 2400

Academic Building

The school is a space where everyone will live for a long time. It not only imparts knowledge, but also cultivates and shapes individual character, interest and social participation ability. Nowadays, the purpose of school education has gradually changed from imparting knowledge to cultivating citizens. The school is not only a facility for passive learning, but also a place to cultivate students' self-learning and inquiry ability and preview the complex social interaction in the future.

Teaching and Auxiliary Rooms 48 Ordinary Classrooms 9 Science Laboratories 1 Music Room 3 Instrumental Music Rooms 4 Dance Rooms 4 Art Rooms 6 Computer Rooms 1 Labor Technology Room 12 Equipment and Preparation Rooms 1 Multi-function Hall 3 Classroom 1 Library 2 Club Rooms 1 Psychological Consultation Room 1 Moral Education Exhibition Room 1 Constitution Test Room 1 Gymnasium

Main entrance (pedestrian)

Auditorium

Evolution of Modern School Buildings

Skirt Building

The spatial form of school buildings is the reflection of the educational system, that is, the form of education.

In the middle of the 19th century, a basic pattern of modern school buildings appeared in the north corridor and the south classroom. On this basis, Japan formed a standardized modular design of steel concrete structure after the war (Nishiyama Primary School · Japan). In the second half of the 20th century, the decline of the birth rate in western countries led to the disappearance of the shortage of school space supply. In Britain and the United States, there were schools that divided space and student organization freely, and there were spatial organization methods based on cities and neighborhoods (Kilmont Elementary School · UK). Open schools, by means of free partition and increasing public space, have become the mainstream. Then there appeared the trend of simulating the sense of residence and family, and integrating into the community to promote the open environment of regional cooperation.

Academic Building

Target 1. The traditional one-way teaching has evolved into independent research, mutual learning, flipped classroom, etc, In this context, teachers and students should be provided with diversified and sufficient autonomous learning facilities and space.

In terms of cultivating social ability, the social organization form within the school also needs to develop towards the direction of openness, autonomy, multi-level and multi-dimensional. In the past, students were divided according to the administrative system of the class, and developed "geographical" relations far and near through the seat position, which was in fault with the active, complex and multi-level social network model required by the real society. We should encourage schools to break the traditional communication mode through space and system design, and create an organizational form that fully transits to the society.

3 Many traditional school building designs have failed to solve the problems of physical comfort and green design. All teachers and students have experienced the problems of glare and exposure on the blackboard, and the problem of closing the curtain to resist exposure, thus blocking ventilation. It is urgent to make rational use of natural lighting and ventilation to create a comfortable indoor environment.

Office Space Classroom Office 9 15 Administrative Offices 1 Broadcasting Room 1 Health Room 1 Team Room 1 Meeting Room 1 Network Control Room 1 Security Control Room

Gymnasium

Living Service Room 1 Canteen Toilet 15 Sets 1 Guard Room Dormitory (proposed) : 20000 Square Meters

Design Generation Steps Living area

Vehicle entrance

Students' appartment

Teaching area

General Layout

Sports area Pedestrian entrance

Determine the Entrance

Functional Layout

Mass Control

Determinant Layout

The pedestrian entrance is set on the trunk road, and the vehicle entrance is set on the branch roads

The school function is divided into three major parts

The volume is open to the east, making use of the reservoir and mountain landscape; The west side volume isolates road noise

Make full use of the prevailing wind in the local summer to cope with the hot climate

Make Courts Promotion of public life

Setback Enable sight line communication between all floors

Merging classroom

Canteen Auditorium

Library Gymnasium

Administrative offices

Public Space

Structural System

Classroom Distribution

Uprise

The semi outdoor public space and classroom are evenly interwoven

The X-shaped column can better resist the lateral thrust, while the huge support structure provides full flexibility and scalability

The special classrooms are close to the ordinary classrooms, reducing the streamline length to improve efficiency

Raise the teaching area to form a continuous public space at the bottom

1F Function Meetings, services and logistics

2F Function Library and huge classrooms

Ecosystem Service Function Evaluation Function

Transportation

Public Space

Space for Student Asscociations Normal Classroom Special Classroom Other Public Facilities

Community Activity Space Communication Space

Staff Flow Line Teachers and Students Flow Line

Axonometric Drawings

Special Classrooms

Corridor Between Academic Buildings Student Associations Private networking Special Classrooms

Student Associations Private networking Special Classrooms

Student Associations

Gymnasium

Cut from the Fifth Floor

View the Garden from the Second Floor

Merging Classroom Psychological Consultation & Physical Examination Room Intensive Library Private networking

Open Shelf Reading Room Merging Classroom

Garden Natatorium

Cut from the Second Floor

Auditorium Roof

Kitchen

Canteen Dining Area

Auditorium Preparation rooms Office

Cut from the First Floor

Main Entrance

Plan F1 01 Canteen 02 Food Window 03 Kitchen 04 Tableware Storage 05 Tableware Cleaning 06 Staff Lounge 07 Cleaning of Food Materials 08 Changing Room 09 Warehouse 10 Toilet 11 Network Control Room

Plan F2 12 Stores 13 Broadcasting Room 14 Administrative Office Area 15 Team Room 16 Meeting Room 17 Multi Function Hall 18 Performance Preparation Room 19 Guard Room 20 Moral Education Exhibition Room 21 Runway 22 Garden

01 Merging Classroom 02 Toilet 03 Meditation Room 04 Psychological Consultation Room 05 Physical Examination Room 06 Intensive Library 07 Open Shelf Reading Room

Plan F5 08 Auditorium 09 Natatorium 10 Equipment Room 11 Changing Room 12 Bathroom 13 Gymnasium

01 Ordinary Classroom 02 Teacher's Office 03 Toilet 04 Computer Classroom 05 Science Laboratory 06 Instrumental Music Rehearsal Room 07 Art Classroom 08 Equipment and Preparation Room 09 Viewing Platform 10 Outdoor Ladder

Project Background This project is an individual part of the park design (team work) 1 The building is located in Xi'an Qujiang Sports Park, and is designed in detail as the main facility in the northeast area under the new master plan.

The northeast area of the park is mainly a large area of continuous hard pavement for various sports activities and a flat lawn that can be used for large-scale outdoor activities, mainly football. Under the overall planning of the park, the design of this area emphasizes the intention of wind.

2 Tourists enter the area from the south main road and then flow to the east and west. The southwest side is the core landscape area of the park, and the line of sight between the building and the core area should be specially considered.

3 The building mainly provides shade for the site to improve the comfort of outdoor activities, and provides sports related services.

Project Description Based on the serious shortage of sports land per capita in China, we propose to realize the multi-function utilization of limited venues through modular design. After introducing online reservation and real-time site planning algorithm, the land use efficiency has been improved.This building will cover multiple land modules.

Considering that the function and capacity of buildings need to change in a long time scale, the strategy of "constant supporting structure+variable building space" is adopted. The public service cost can be greatly reduced by suspending rooms between mega structures and changing the combination mode of rooms according to people's needs.

The truss canopy extends from the simple supporting structure to provide shade for the surrounding sports field. Shops, toilets, coffee shops and gyms are set in the supporting structure room. The roof garden on the top floor has an excellent view of the whole park.

THE LAST SCRAPERS Recreation and Ecological Restoration Devices to Cope with Anti Urbanization

This is the design of EVOLO Architecture Competition in the spring of 2021. The project was completed by me, Wang Yifei and Luo Yujia. I am responsible for the concept and form design, and the other two are responsible for the technical details and drawing.

Concept

Background

The vast majority of buildings in China are brick concrete or reinforced concrete structures. Abandoned cities will consume a long period of habitat succession, which poses a serious burden on the environment. On the other hand, some abandoned areas are often adjacent to prosperous areas, and the potential of tourism and entertainment development in these areas has not been explored. We hope to build spray tower arrays in abandoned urban areas to promote concrete decomposition and habitat shelter on urban surfaces through biochemical means. The spray seeding tower will be used as a recreational facility to provide maintenance funds for tourism and promote regional rejuvenation.

Many cities in China have experienced dramatic expansion in the past 40 years, but some small cities lacking development prospects are gradually dying out. The excessive concentration of social resources has led to the migration of population from small cities, and further led to the decline of the region. Some cities are being abandoned. On the other hand, due to the increasing pressure of urban problems such as traffic congestion, crime growth, and serious pollution, the population in big cities will begin to flow to the suburbs and even to the countryside, leading to the abandonment of part of the built-up areas in big cities. The same problem has arisen in some other countries. In fact, developed countries have already had the same historical experience. In 1970s, developed countries experienced counter urbanization. The urbanization of developed countries has entered the third stage of the urbanization process after rapid development. Its main feature is that the population of large cities has stopped growing or even decreased, and the flow of population and other resources has begun to shift to small and medium-sized cities, especially small towns in the suburbs around large cities. This phenomenon first appeared in the United States in the 1970s and was named as anti urbanization, and then appeared in developed countries in Europe.

The abandoned urban areas in the past are often not well utilized, and the ecology disturbed by human needs a long time to recover. These abandoned areas should be properly disposed, and a set of sustainable abandoned urban governance methods need to be found.

Strategy The spray seeding tower is composed of two sets of systems. One is a biochemical reaction generator. The device on the upper part of the tower captures nitrogen, generates nitric acid and other products under the catalysis of lightning and solar energy, and then sprays to the abandoned city with a huge umbrella mounted nozzle. The surface of abandoned buildings is corroded to form an environment conducive to the occurrence of nascent succession. After the emergence of pioneer vegetation, it is changed to spray nitrogenous fertilizer to accelerate the propagation and succession of vegetation.

The other is recreation service system. A hotel is set in the middle of each spray seeding tower. The upper floor of the hotel is a restaurant and bar, providing a resting place for tourists exploring in the abandoned concrete forest. The spraying and seeding towers are connected by cable cars to achieve fast traffic in the entire abandoned urban area.

HABITAT SYMBIOSIS National Territory Ecological Planning of Baoji Municipal & Loong County Current Conditions Land-use

Altitude

Slope

Waviness

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Summary

River System

Precipitation

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Vegetation coverage

Soil type

This project is a curriculum design project for the eighth semester of undergraduate majoring in landscape architecture. This is a group assignment, which was jointly completed by Luo Yujia, Wang Yifei, Liu Zixin and me. I am mainly responsible for geographic data analysis and literature collation.

China's national territorial space comprehensive planning is being worked out in full swing. This system integrates various professional fields in various regions and will gradually replace China's original planning and regulatory system.

The special national territorial ecological planning is a sub item of the comprehensive national territorial spatial planning. The comprehensive planning of national territorial space prepared by the planning and design unit will become a local law and regulation after being well informed. The special national territorial ecological planning does not point out specific engineering methods, but determines regional ecological protection principles through strict demonstration, delimits protection and restoration areas, sets up several protection project plans, and puts forward guiding opinions.

Baoji municipality is located in Shaanxi Province, China, at the junction of the Loess Plateau and the Qinling Mountains. The ecological environment is extremely fragile, especially in Longxian County, where the mining industry, as a pillar industry, has caused serious ecological damage. Unreasonable development activities carried out under the fragile ecological environment have even triggered various geological disasters, which seriously threaten the safety of residents.

Our goal is to determine the ecological security pattern through macro analysis, determine reasonable protection and restoration areas based on quantitative analysis, propose different strategies, and put forward feasible policy recommendations based on the local social development level.

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Current Assessment Ecosystem Service Function Evaluation

Evaluation of Habitat Quality

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Evaluation of Water Conservation

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Evaluation of Soil Conservation

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We used the InVEST model (InVEST model - Integrated Valuation of Ecosystem Services and Trade off can provide scientific basis for decision-makers to weigh the benefits and impacts of human activities by simulating changes in the quality and value of ecosystem services under different land cover scenarios. The model system InVEST model for ecosystem service function evaluation fills the gap in this field, It realized the spatialization of quantitative assessment of ecosystem service function value.

This model grasps a good overall pattern, and reflects the threat degree and impact scope of human activities on the habitat.) to study the three year phases of the habitat quality, soil conservation, water conservation and ecological culture service function in Baoji. The soil conservation service function is relatively high in the south, especially in the southeast, while it is relatively low in the central urban area and even in Linyou County. The index of habitat quality is low along Qianhe River of Weihe River in Baoji and north side of Baoji, and the most serious is along the middle east section of Weihe River.

The areas with good water conservation function are mainly distributed in the south of Baoji, while the areas with poor water conservation function are relatively large.The lower value areas of ecological and cultural services in Baoji City are mainly distributed in the Weihe River basin in the central urban area and the Qianhe River basin in the north.

Evaluation of Cultural Resources

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Degradation of ecosystem services

Habitat Quality Degradation (2010~2020)

Research Framework for Loong County

Baoji is located in the hinterland of the mainland. Affected by the monsoon circulation and topography, it is a continental monsoon climate type. In China's climate zoning, it belongs to the warm temperate semi humid climate zone. Climate change throughout the year is affected by the monsoon, with four distinct seasons, cold, warm, dry and wet. There are 15 soil types, 34 soil subtypes, 83 soil genera and 286 soil species in Baoji. The mountain soil includes cinnamon soil, brown soil, dark brown soil, subalpine meadow soil and alpine meadow soil.

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Ecological Problem Diagnosis and Risk Area Identification

Ecological Risk Assessment

Research Framework for Baoji Municipality

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The Qinling Mountains and Guan Mountains to the west and south of Baoji Municipality, as well as the northeast, are mainly forested, and the river valleys and plains are mainly cultivated land. Baoji City is located at the junction of Qinling fold belt and Weihe graben in geotectonic unit due to its complex landform. The south of Weihe River belongs to the Qinling Mountains, the Weihe River and its banks are the Weihe River Plain, and the north of Weihe River is the loess tableland. The landform is dominated by mountains and hills.

The mountainous and hilly area covers 14632 square kilometers, accounting for 80.5% of the total area.

Problems of ecological elements

Soil Conservation Function Degradation (2010~2020)

Soil and Water Loss

Water Conservation Function Degradation (2010~2020)

Forest Land Degradation

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Problem Diagnosis

Geological Hazard

serious

Grassland Degradation serious

low ecological risk medium ecological risk high ecological risk the most serious problem area areas with serious problems geological hazard point forest land degradation point grassland degradation point

The ecological risk assessment for Baoji City is mainly based on the type of land use. The calculation method is as follows.

(In the formula, Ak is the total area of the k-th sample plot; Aki is the total area of the i-th land type of the k-th sample plot; Wi is the ecological risk intensity parameter of the i-th land use type; N is the number of land use types.

Wi is the comprehensive ecological risk degree reflected by different land use types).

Then we identified the problems of water and soil loss, mining geological disasters and habitat degradation, and made it clear that "the ecological problems around the central urban area and east of Linyou are serious, and the ecological problems in Fengxian County, Longxian County and central Linyou are serious".

Based on the difference of three years in the ecological service function evaluation, we get the degradation of the three service functions. The areas with serious soil conservation in Baoji City are scattered. The areas with serious degradation of habitat service function are mainly distributed in the central urban area and along the Qianhe River. The areas with serious degradation of water conservation service function are mainly distributed in the east of Baoji, Longxian County and Fengxian County.

Construction of Ecological Protection Pattern

Construction of Ecological Restoration Pattern

Ecological Source Identification

Ecological Restoration Area

Importance of the Ecosystem

Sensitivity of the Ecosystem

Identification of Ecological Sources Classification of Ecological Protection Importance

Soil Conservation Slope Sensitivity

Water Conservation

Precipitation Sensitivity Vegetation Cover Sensitivity

Habitat Quality

Soil Type Sensitivity

Cultural Resources

Land Use Type Sensitivity

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Functional Importance Classification

Ecosystem Sensitivity Classification

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Extract high value areas of ecological protection importance

High value area

Degradation of ecosystem services

Ecological Degradation Restoration Area

Key Problem Areas

Habitat Quality Degradation (2015~2020) low slightly low commen slightly high high

Soil Conservation Function Degradation (2015~2020)

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Compare the current situation and supplement the important forest land of Linyou County in the northeast and Longxian County in the northwest High value area after supplementation

A total of 30 patches are extracted from the area with a source area of more than 10 square kilometers, which are identified as the ecological source of Baoji City

When dividing ecological restoration zones, we considered the degree of habitat degradation and the severity of ecological problems, and thus identified core restoration areas, key restoration areas, general restoration areas, and ecological conservation areas.

The division of ecological degradation restoration area is to comprehensively consider the degradation degree of habitat quality, soil conservation capacity and water conservation capacity, specifically, the weighted sum of the degradation degree of the three indicators from 2015 to 2020.

The division of ecological element problem restoration area is based on the ecological risk assessment mentioned above, and several important nodes are determined according to data analysis and field survey.

Ecological source

According to the DPC index, 30 ecological sources are ranked, and the first 15 sources are identified as primary ecological sources, and the last 15 are secondary ecological sources

Municipal Ecological Restoration Planning Map of Baoji Ecological Network

Restoration Pattern

Primary source Secondary source

We comprehensively consider the research results of the importance of ecological services and ecosystem sensitivity, so as to clarify the spatial distribution of the importance of ecological protection.

The four weights of soil conservation, water conservation, habitat quality and ecological culture of ecological function importance shall be distributed according to the principle of ecological priority and the ecological value of each function. According to the characteristics of abundant mountain and river resources in Baoji and the principle of comprehensiveness and representativeness of leading factors, the ecosystem sensitivity index system is established by selecting five factors, and the total evaluation score is the weighted sum of each single factor score.

According to the importance level matrix of ecological protection in the Technical Guidelines for the Evaluation of Resources Mitigation Carrying Capacity and Land Spatial Development Suitability issued by the Ministry of Natural Resources, People’s Republic of China in 2019, the importance level of urban ecological protection is classified in combination with the importance study of ecological service functions and the sensitive data of ecosystems.On the basis of the importance of ecological protection in Baoji, extract high-value areas, and supplement natural reserves and important forests in combination with the current situation, so as to obtain the primary source. Then, 30 sources were selected based on the source area and DPC index, and the first 15 sources were identified as primary sources and the last 15 as secondary sources.

Ecological Resistance and Corridor Identification Resistance surface identification

The ecological security pattern of Baoji Municipality consists of primary source area and secondary source area; The first level corridor, the second level corridor, the third level corridor, and the first, second, and third level ecological restoration nodes together constitute. The ecological network mainly presents as scattered source areas in the north and concentrated in the south and corridors along the Qianwei River network in general.

Restoration Node Node Identification

The ecological restoration pattern of Baoji Municipality is divided into core restoration area, key restoration area, general restoration area and ecological conservation area according to its urgency. The core restoration area mainly covers Longxian County and the banks of Weihe River. The core restoration area mainly covers Longxian County and the banks of Weihe River.

Resistance Surface by Altitude Important pinch Ecological pinch Boundary Railyway Highway Waters

Resistance Surface by Land Use Type

Primary corridor Secondary corridor Tertiary corridor Primary source Secondary source

Primary ecological restoration node Secondary ecological restoration node Tertiary ecological restoration node

Boundary Railyway Highway Waters

Core area Key area Commen area Conservation area

Obstacle point

Restoration Zoning

Planning Structure

Resistance Surface by Slope Breaking point

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ComprehensiveResistance Surface

Corridor Identification

Primary corridor Secondary corridor

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Based on the above security pattern and specific zoning of Baoji, the ecological planning structure of "three districts, two axes, five belts and ten nodes" of Baoji is defined. This plan is a special ecological study in the national territorial development and renovation plan in Baoji Municipality according to the prescribed procedures.

Tertiary corridor Primary source Secondary source

The construction method of resistance surface is to grade the resistance factors such as land use type data, elevation and slope, vegetation coverage, etc., assign values according to certain methods and calculate weighted sum.

The extraction method of ecological corridor is to integrate the source and resistance surface, and identify the ecological corridor by using the linkage Mapper tool. According to the origin level of corridor connection and the importance of the status quo of the corridor, it is divided into three levels.

Ecological pinch points refer to the areas with the most concentrated biological flow in the corridor area, which play an important role in biological migration. There are 55 ecological pinch points in total, which are mainly distributed in the connection with Weihe River and the connection area of forest land or protected land in Linyou County and Chencang County.

Ecological obstacle points refer to the areas with the largest resistance value in the corridor, where the migration of organisms is greatly hindered. There are 59 ecological obstacles in total.

The ecological breakpoint refers to the intersection of large transportation facilities (expressways, national highways) and ecological corridors. As the road blocks the biological flow, the landscape fragmentation is intensified.

There are 50 ecological breakpoints in Baoji City, which are concentrated at the junction of Weihe River, Qianhe Corridor, and Qingjiang River.

Core restoration node Key restoration node Commen restoration node

The ecological restoration zoning of Baoji Municipality is divided according to functions. It includes mine ecological restoration area, water conservation restoration area, soil conservation restoration area, habitat quality restoration area and functional protection areas. Among them, the south side of Longxian County is an important Guanshan Habitat Quality Protection Area, while the Qianlong area focuses on soil conservation and other issues. Specific zoning contents: 2 mine ecological restoration areas (including Yongcheng Lake mine ecological restoration area and Fengxian mine ecological restoration area), with forest ecosystem as the dominant area; There are 3 water conservation and restoration areas: (including Qianhe River Water Conservation and Restoration Area, Tongtian River Water Conservation and Restoration Area, and Taibai Mountain Water Conservation and Restoration Area), and the freshwater ecosystem is dominant in the area; 2 soil conservation and restoration areas (including Salix psammophila slope soil conservation and restoration area and Lianhua Mountain soil conservation and restoration area), dominated by terrestrial ecosystems; There are 2 habitat quality restoration areas (including Guanshan grassland habitat quality restoration area and central urban area habitat quality restoration area), with forest, grassland and urban settlement ecosystem as the leading ecosystem.

Boundary Railyway Highway Waters

Mine rehabilitation area Water conservation area Soil conservation area Habitat restoration area

Waters reserve area Habitat reserve area

City proper ecological restoration area

Boundary Railyway Highway Waters

Ecological axis Ecobelt Repair/Hold area Ecological source

Conty Basic Research Current Conditions Land-use

Pattern Construction

Altitude

Upper Protection Pattern

Waters

Target Setting TOP GOAL

TOP ISSUES

Biodiversity is destroyed

The contradiction between man and nature

TOP PATTERN

UNDERLYING ISSUES

Soil erosion

Mine disaster

Harmony between man and nature

Analysis on Habitat Suitability of Elaphodus cephalophus

Analysis on Habitat Suitability of Rana chensinensis

Land use impact factors

Land use impact factors

Land use impact factors

Land use impact factors

Impact factor of distance from residential area

Impact factor of distance from residential area

Impact factor of distance from residential area

Impact factor of distance from residential area

Impact factor of distance from traffic network

Impact factor of distance from traffic network

Impact factor of distance from traffic network

Impact factor of distance from traffic network

Impact factor of distance from water body

Impact factor of distance from water body

Impact factor of distance from water body

Impact factor of distance from water body

Elevation influence factor

Elevation influence factor

Elevation influence factor

Elevation influence factor

BOTTOM TARGET

Habitat degradation

BOTTOM PATTERN

Problem Analysis Geological hazard Sensitivity

Species protection

Analysis on Habitat Suitability of Chrysolophus pictus

Analysis on Habitat Suitability of Ciconia nigra

Soil conservation Sensitivity

Habitat quality Sensitivity

Ensuring the safety of residents' lives and property

Habitat quality Sensitivity Comprehensive Diagnosis

Habitat suitability evaluation of Chrysolophus pictus

Habitat suitability evaluation of Ciconia nigra

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Habitat suitability evaluation of Elaphodus cephalophus

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Habitat suitability evaluation of Rana chensinensis

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After that, we went through the rare and endangered animal resources in Longxian County, and took the five important protected species of fine scale salmon, black stork, red bellied golden pheasant, hairy deer and Chinese forest frog as the indicator species.

Elaphodus Cephalophus

Panthera Pardus

Bottom Protection Pattern

Moschus Berezovskii

Ciconia Nigra

Japonensis

Geological hazard sensitivity

Soil conservation sensitivity

Water conservation sensitivity

Habitat quality sensitivity

Comprehensive evaluation of bottom service function

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It can be seen from the above that "biodiversity protection, mine geological disaster prevention and control, and water and soil loss control" are the general direction of ecological control in Longxian County, and the current situation of "complex landform and broken terrain" is the main challenge of restoration work. Based on the previous study of Baoji and the current situation of Longxian County, the problems of Longxian County are preliminarily discussed, and three main problems are summarized: mine geology, water and soil loss, and habitat degradation.

Lutra Lutra

Chrysolophus Pictus

Aristichthys Nobilis

Ardea Alba

Otis Tarda

Ctenopharyngodon Idella

Brachymystax Lenok

Bufo Gargarizans

Pelodiscus Sinensis

Cyprinus Carpio

Andrias Davidianus

Rana Chensinensis

Gekko

Agkistrodon Halys

Zaocys Dhumnades

The fine scale salmon is a cold water fish, which mainly inhabits the running water with low water temperature and clear water quality. The larvae like to hide between the sand and gravel spaces and do not swim often. We directly use the fine scale salmon nature reserve as the basis for suitability analysis.

The suitability of other organisms shall be analyzed based on the land type, distance to roads, residential areas and water bodies, and elevation. The black stork mainly feeds on fish and also preys on other small animals. It lives along rivers and near streams in marshy mountains, and has the habit of using old nests. It is considered to assign high values to the tidal flat and water area that are most suitable for survival, and assign values progressively to the high and low sides based on the 1500 m elevation that is most suitable for survival. The golden pheasant lives in the broad-leaved forest, mixed coniferous and broad-leaved forest and the sparse forest and shrub zone at the edge of the forest at an altitude of 500-2500 meters, and acts in groups. The hairy deer live in evergreen broad-leaved forests, mixed coniferous and broad-leaved forests, shrubs, cutting blanks and river valley shrubs in high mountains or hilly areas, and often live on mountains between 1000 and 4000 meters above sea level. Take the high altitude forest and grassland whose survival elevation is more than 2000 meters as the height value. It is easy to be disturbed by human activities, so it is increased to the weight of residential area distance.

Combined with the suitability analysis of the above species, the highest value is obtained after the superposition of the five biological suitability analysis to obtain a combined biological suitability analysis.

High Value Area of Bottom Protection Pattern

Based on ecological problems, the bottom and top patterns of Longxian County are divided. For the underlying pattern, we hope to prevent and control the problems of mine geology, water and soil loss, and habitat degradation, and improve the willfulness of ecological security; Aiming at the top-level pattern, we are committed to protecting biodiversity on the basis of security.

We found the underlying ecological security pattern of "high service function in the southwest and low service function in the northeast" by combining the assessment results of soil conservation, habitat quality, geological disaster prevention and control and other functions.

After that, we went through the rare and endangered animal resources in Longxian County, and took the five important protected species of fine scale salmon, black stork, red bellied golden pheasant, hairy deer and Chinese forest frog as the indicator species.

High Value Area of Comprehensive Habitat Suitability

Primary source area

Secondary source area

Construction of Ecological Protection Pattern

Ecological Development Strategy of Loong County

Construction of Ecological Pattern

Coordinated Urban and Rural Protection 1. Implement regional ecological coordination strategy. Focus on promoting the construction of regional ecological environment monitoring network and the coordinated protection of important ecological elements in cross-border areas, and strengthen the comprehensive regulation of regional ecological environment protection and restoration.

2 Build regional ecological framework. Natural elements such as mountains and water systems are used as bridges and ties to connect various regions and connect the ecological "joints" and green "channels" of Longxian County.

3 Implement the "double carbon" goal. We will promote green and low-carbon development that is low in consumption, low in emissions, recyclable and sustainable. In terms of forest and grass carbon sinks, river and lake wetland carbon sequestration, land use regulation and absorption, we will jointly explore ways to increase carbon sinks, and continue to consolidate and improve the carbon sink capacity of the ecosystem.

Resistance Surface & Corridor Identification Elevation Resistance Surface

Slope Resistance Surface

Comprehensive Resistance Surface

low slightly low commen slightly high high

Land Use Resistance Surface

Resistance Surface of Vegetation Coverage

Compared with the network construction in Baoji City, the construction of resistance surface and the extraction of corridor focus more on the factors of biological process. We focus on the activity process of black stork and fine scale salmon, which are more important indicator species. The extraction method of corridors and nodes is the same as that above. We use linkage Mapper to identify the primary and secondary corridors, nodes and obstacles by integrating the source and resistance surface data.

Construction of Restoration Pattern Restoration Node Identification Ecological Pinch

Obstacle Point

Breaking Point

Build Biodiversity Protection Network 1 Strengthen habitat integrity and connectivity We will implement biodiversity conservation centered on habitats and habitats, strictly protect important habitats and habitats such as the natural concentrated distribution areas of wildlife and important migration routes, fill in the protection gaps, and form a network of protected areas in combination with existing protected areas.

2. Strengthen the protection and restoration of ecological corridor According to the functional requirements and site conditions of the ecological corridor, and in combination with the green space such as the shelter belt, the corridor can be connected in series. For the current construction of the area that affects the connectivity of the ecological corridor, flexibly use the means of renewal and preparation, land supervision and other means to comprehensively promote the land clearing work in the area.

3 Promote the construction of biological channels Build ecological bridges, culverts and other forms of biological channels, establish connecting channels between habitats, repair key ecological nodes where linear infrastructure separates large ecological patches, and restore material and energy exchanges between ecosystems.

Deployment of Ecological Improvement Projects

Restoration Area Identification Comprehension

Green Land Ecological Protection 1. Implement strict forest resource management and control measures Strictly implement the total amount control and quota management system of forest land used by construction projects, coordinate the quota indicators of new construction land and forest land, and explore the total amount control scheme implemented according to the planning period.

2. Strengthen the protection of natural mountain features and geological relics Protect the natural features of the mountain and avoid large-scale excavation to damage the mountain. The construction unit that develops and utilizes mountain resources shall take effective measures to minimize the destruction of mountains and improve the ecological landscape of slopes according to relevant standards.

3. Continuously improve forest ecosystem services Improve the water conservation and water and soil conservation functions of the forest ecosystem. We will orderly promote the construction, transformation and upgrading of forest parks and country parks, improve park infrastructure, enhance the recreational service capacity of urban forests, and play its comprehensive role in building ecological security barriers, maintaining biodiversity, and popularizing ecological education.

Water Ecosystem Protection 1. Strengthen the protection of water resources in water space Strictly protect the ecological space of river and lake water systems and wetlands, stick to the bottom line of water resources carrying capacity, strengthen the protection of drinking water sources, build a diversified distribution system of ecological water replenishment, ensure the flow of ecological base, and improve the hydrodynamic conditions.

2 Comprehensive restoration of inland wetland system Protect the water surface and the space of the fluctuation zone, and strictly prohibit the encroachment, hardening and over planting of the fluctuation zone. Strengthen the connection between wetlands and water systems, ensure wetland water resources, and repair aquatic and terrestrial habitats.

3 Restore heterogeneous river habitat Build the diversity of water flow patterns and create an adaptive habitat conducive to the growth of aquatic plants, feeding and reproduction of benthos and fish. For main rivers, sandbanks and other habitats can be restored by relying on their own channels, and the overall design can be carried out in combination with the green space along the banks to build a multi-level riparian vegetation belt.

Comprehensive Diagnosis

Risk Assessment

low slightly low commen slightly high high Ecological pinch Obstacle point Breaking point

For the pattern of ecological restoration, we comprehensively evaluated and graded the comprehensive distribution of ecological problems and the ecological risk assessment of Longxian County analyzed in the previous status assessment, so as to identify the core restoration area, key restoration area, general restoration area and ecological conservation area. Among them, the high value areas of ecological problems are mainly distributed in the Beishan area and the factory area in the south of the central county town of Longxian County.

In the ecological network, the source area has the good background of Guanshan and Badu Forest Farm, which is densely distributed in the southwest, while the corridor mainly extends along Qianhe River and Beihe River.

The ecological restoration pattern is divided into core restoration area, key restoration area, general restoration area and ecological conservation area according to its urgency. In the restoration pattern, the surrounding areas of Qianhe River and Beishan Mountain are the key areas for governance. Ecological restoration area includes mine ecological restoration area, water conservation restoration area, soil conservation restoration area, habitat quality restoration area and protection area under various functions. Based on the above security pattern and specific zoning relationship, the planning structure of "three zones, one axis, four belts and five nodes" is finally presented.

County planning strategy and main tasks.

Ecological Restoration Planning Map of Loong County

Boundary Railyway Highway Waters

Primary corridor Secondary corridor Tertiary corridor Primary source Secondary source

Primary ecological restoration node Secondary ecological restoration node Tertiary ecological restoration node

Boundary Railyway Highway Waters

Core area Key area Commen area Conservation area

Core restoration node Key restoration node Commen restoration node

Boundary Railyway Highway Waters

Ecological axis Ecobelt Repair/Hold area Ecological source

Boundary

Primary corridor

Mine treatment and repair project

Railyway

Secondary corridor

Water and soil loss prevention works

Highway

Primary source

Ecological corridor restoration project

Waters

Secondary source

Ecological restoration project for residential land Habitat degradation restoration project

WORKS DURING INTERNSHIP Works In Tongji Design Group Co.,LTD.

Works In China Railway Siyuan Survey And Design Group Co.,LTD.

Wuhan Sino French Eco City Green Infrastructure Scheme (bidding phase)

Vehicular Bridge Design This bridge is a node of the ecological city river landscape system. Considering the regional characteristics, I hope this bridge can become a symbol of China France friendship.

Arch bridges have excellent mechanical properties and have a long history in Europe and China. In this design, the concrete monolithic arch foot is slightly inclined to both sides, improving the lateral thrust resistance and reducing the sense of volume when looking up at the bridge from the river. The armrest consists of two pieces of bent aluminum plates.

Lijiang Snow Mountain Sightseeing Train & Baisha Cultural Ecological Restoration and Quality Improvement Project

the Square of the Tourist Center Station The station design has been determined, so I will extend the indoor functions to the outside. The area outside the store on the west side serves as a rest area, and the outside of the ticket gate on the east side combs the flow of people through linear landscape elements to reduce the flow of people crossing.

The site is located in the Qinghai Tibet Plateau, 5600 meters above sea level, where water resources are scarce and plant growth is difficult. Therefore, although the local sun radiation is very large, I still only plant a few plants to create a meadow and coniferous tree community.

Through the detailed treatment of arch bridge shape, molding and handrails, this bridge implicitly responds to the construction tradition of China and France, and integrates with the surrounding environment with a simple image.

Conceptual Design (bidding phase)

Ningbo Zhenpu Bridge Zhenpu Bridge is a super large highway bridge planned to be built at the estuary of Yongjiang River in Ningbo, China. I participated in the shape design of the bridge.

Considering the requirements of clear span (800m) and clear height, several designs are proposed according to the corresponding parameters of two types of structure selection provided by the structural engineer.

The first is the "Tian Yi Ge" cable-stayed bridge, which imitates the local historic site by column shape, the second is the cable-stayed bridge with parametric lighting devices on the steel cables, and the last is the arch bridge inspired by the animal "Kun Peng" (a super giant whale like creature, symbolizing transcendence) in Chinese mythology.

Urban renewal of Jinbi Road and Dongjiao Road in Kunming City, Yunnan Province

Pedestrian Overpass The site is located on the central axis of the city, so the government requires the rebuilt overpass to be highly symbolic and hopes it will become a new landmark.

I designed several schemes in four types of structures, (folded plate, mutual supporting double arch, arch bridge and truss). The left figures show two of them.

The first overpass is covered with movable metal plates reflecting the urban landscape, which can make people notice the existence of wind. The second overpass is a bold double arch structure, which solves the problem of barrier free passage. When passing from below, people can see the shape of a horse's hoof, which is the symbol of the city.

I hope that the two overpasses can stimulate citizens' activities and let them share on social applications.