Study On Spatial And Temporal Changes Of Water Quality In Ebinur Lake And Its Managerial Strategies

The Ebinur lake is the biggest island salt lake in Xinjiang province, recently, because of the industry and agriculture development and the population increasing,the pollutants that entered in Ebinur Lake was increasing. The degree of Eutrophication is increasing, too. At the same time, the area of Ebinur Lake is reducing.All these problems attracted more and more attention. So it is meaningful for both Bole and Xinjiang provinces to do the research of Ebinur Lake’ water environment.This thesis is based on the monitoring data of Bole Hydrological Bureau of 2003~2014, which Analysis the trends of runoff and water quality indexes in the Origins of Ebinur Lake. The Origins are Boertala river and Jin river. Then compare the pollution situation of the three different lake areas. Analysis the trends of water indexes of the three different lake area in each year. Study the problems of the management of Ebinur Lake with the current situation.Then come up with some Proposals of the management of Ebinur Lake. I hope I can do something to help Ebinur Lake in sustainable development.(1) The origins runoff of Ebinur Lake(Boertala river and Jin river) in 2003~2014 was decreasing year by year,the ammonia nitrogen of 82 cultivation company which is located in the downstream of Jin river totally increased slowly, TP decreased at first then went up. The total hardness and the degree of mineralization of 90 bridge went up all the way to 2009, then decreased,but this two indexes of 82 cultivation company increased all the way.(2) The main water quality indexes trends of Ebinur Lake during 2003~2014: p H is between 8.4 and8.6,the degree of mineralization was elevated,the total hardness increased then went down, the COD Mn went down first,then drifted. COD Cr increased all the time. TN floated up and down, TP was stable at first, then went up and down.DO decreased all the time.(3) Compared The pollution indexes of the three areas of Ebinur Lake,I found that the west of the lake was polluted the most serious in 2003~2004.In 2005~2006 the middle of the lake was the most polluted,in 2007 the west of the lake was most polluted,the middle of the lake was at least. In2008 the middle of the lake was the most polluted,during 2009~2010 middle of the lake was the most polluted, the least polluted area was the west of the lake. In 2011 the degree of the pollution was: middle, west, east. The duty place was more polluted than the saltwork in 2012~2014.(4) Predicted the runoff volume which flow into the Ebinur lake in 2015~2020.I found that the runoff volume will decrease year by year,it is so hard to sustain the lake area of 5×108 m3 in 2019.(5) Based on the current situation of the Ebinur Lake’s environment management,I offer some strategies: strengthen the sustainable of water use and the protection of Ebinur Lake vally’s forest.Build plans to protect the ecotope. Strengthen the legal control of the lake and its branches.Made the legal of Ebinur lake and its branches, complete the build of environment control system.