CAJ | 학술논문

根据2010年1月-2015年11月乌梁素海水质因子监测数据,分析其Chl-a的时空分布及其与主要水质因子的相互关系.结果表明:河套灌区农田退水对乌梁素海Chl-a浓度变化产生较大影响,入口区高于湖心区与出口区.从空间分布上来看,Chl-a浓度分布呈现出入口区>湖心区>出口区的趋势;从时间分布上来看,呈现5月份>7月份>3月份>11月份>9月份>1月份,枯水期>丰水期>平水期.在采样时间段内,Chl-a与NO3-N与NO3-含量比成正比.
근거2010년1월-2015년11월오량소해수질인자감측수거,분석기Chl-a적시공분포급기여주요수질인자적상호관계.결과표명:하투관구농전퇴수대오량소해Chl-a농도변화산생교대영향,입구구고우호심구여출구구.종공간분포상래간,Chl-a농도분포정현출입구구>호심구>출구구적추세;종시간분포상래간,정현5월빈>7월빈>3월빈>11월빈>9월빈>1월빈,고수기>봉수기>평수기.재채양시간단내,Chl-a여NO3-N여NO3-함량비성정비.
According water quality monitoring data of Wuliangsuhai Lake during January 2010 to November 2015, this paper analyze the temporal and spatial changes and trends of Chl-a distribution.The correlation between the main water quality factors and Chl-a was studied.The result show that the farmland withdrawal water of Hetao irrigation area have a great influence on the change of NO3 -N, TP, TN and NO3-N concentration in Wuliangsuhai Lake.The Chl-a concentration of inlet sector was signifi-cantly higher than that of center and outlet area, and that was associated with ecological water supplement measures in 4-5 months of each year, and the values were arranged according to inlet sector>center>outlet sector.In the view of time distribution it was arranged according to May>July>March>November>September>January and according to the water yield period it trend as low water period>abundant water period>normal water period.Chl-a and BOD5 ,NO3-N,TP and KMnO4 were significantly correlated during the sampling period, The concentration of Chl-a increases as the ratio of NO3-N and NO3- gets bigger, the content of Chl-a factor curve can be explained concentration of Chl-a well in each partition, showed a highly positive correlation.