016
017
Landbased Nutrient Source C. Wang
Marine Nutrient Sources C. Wang
The majority of pollution sources are a thousand miles away from the river mouth, which means the people who suffer from this unpleasant consequence essentially has nothing to do with the generation of pollutants.
Apart from the pollution from Baltic catchment, heavy marine activity worsens the circumstance in Baltic Sea. Every day, there are thousands of ships navigating in the sea area, leaking a large amount of fossil fuel and casting enormous marine litter which threatens the aqua-ecosystem.
ARTIFICIAL NUTRIENT SOURCES LANDBASED NUTRIENT SOURCE
MARINE NUTRIENT SOURCE The water from agricultural land, rural households, wastewater treatment plant carries the largest portion of nutrients (mainly Nitrogen and Phosphorus) to the Baltic Sea. Among all these elements, agriculture shared the largest percentage. The polluted water from a surface flow and underground runoff can be defined as diffused pollution whose source cannot be easily located.
Co-Operative Wet-Land |
artificial nutrient sources
According to an environmental report from Helcom, pointsource pollution from household and wastewater plant can be easily and targetedly solved by building wastewater treatment. So the real challenge lies within the non-pointed pollution from inland.
Figure 10
According to the statistics, there are over 200 ports in the Baltic Sea.Those ports handle more than 50,000 tons of cargo annually. (Wikipedia, 2016) Although the environment in Baltic is worrying, every nation along the Baltic Sea, especially the western countries, are still managed to construct more ports and expend the existing ones, trying to take the control of marine transportation in
this area. As a result, the frequent dredging and dumping activities accelerate the diffuse speed of soil pollution to the waterbody.
Figure 11
Landscape Urbanism 2015-2016 | AA School