人民长江2023，Vol.54Issue(12)：50-57,8.DOI:10.16232/j.cnki.1001-4179.2023.12.007
采砂对鄱阳湖水质和大型底栖动物的影响研究
Effects of sand mining on water quality and macrozoobenthic in Poyang Lake
摘要
Abstract
Poyang Lake has abundant sand resources,but there has been a lack of in-depth understanding on the evolution of water quality and the community structure of macrozoobenthic under the influence of sand mining for a long time.In this study,water quality,sediment and macrozoobenthos samples were collected by partition,and the distribution and evolution of physical and chemical indexes and biological species were analyzed by using inverse distance weight interpolation,principal component a-nalysis,diversity index comparison and canonical corresponding analysis.The results showed that the turbidity and suspended sol-ids of water significantly increased in the downstream of the sand mining area;the total phosphorus content of water increased slightly in the lower reaches of the sand mining area,and the nutrient content of sediment in the non-sand mining area was high-er than that in the historical sand mined area and the planned sand mining area.The Simpson,Shannon Wiener,and Margalef di-versity indices of macrozoobenthic in the non-sand mining area were also higher than those in historical and planned sand mining areas.The above results indicate that sand mining disturbs sediment,causing an increase in suspended solids concentration in nearby water bodies,affecting the nutrient composition of water and sediment,and reducing the diversity index of macrobenthic an-imals.关键词
采砂/水质/生态环境/底栖动物/鄱阳湖Key words
sand mining/water quality/ecological environment/macrozoobenthic/Poyang Lake分类
资源环境引用本文复制引用
薛肖斌,黄小龙,王雨婷..采砂对鄱阳湖水质和大型底栖动物的影响研究[J].人民长江,2023,54(12):50-57,8.基金项目
国家自然科学基金项目(42177067,42020104005) （42177067,42020104005）
湖北省地质局生态环境地质专项(42000023622T000000231) （42000023622T000000231）
湖北省自然科学基金项目(2023AFB518) （2023AFB518）
