Lake eutrophication and its ecosystem response

查看全文 作　　者：QIN [1]BoQiang;GAO [1]Guang;ZHU [1]GuangWei;ZHANG [1]YunLin;SONG [2]YuZhi;TANG [1]XiangMing;XU [1]Hai;DENG [1]JianMing

机构地区：[1]Nanjing Institute of Geography & Limnology,Chinese Academy of Sciences;[2]College of Environmental Science and Engineering,Nanjing University of Information Science & Technology

出　　处：《Chinese Science Bulletin》索引2013年第58卷第9期,共10页

基　　金：supported by the National Natural Science Foundation of China (40825004,41230744,41271355 and 31270505) 摘　　要：China is a country with many lakes,about one-third of which are freshwater mainly distributed in the middle and lower reaches of the Yangtze River.Currently most of the lakes are mesotrophic or eutrophic.Lake eutrophication has become one of the major ecological and environmental problems faced by lakes in China and can lead to a series of abnormal ecosystem responses,including extinction of submerged plants,frequent occurrence of cyanobacterial blooms,increased microbial biomass and productivity,decreased biodiversity,accelerated cycles,and a change in the efficient use of nutrients.With development of eutrophication,the whole lake ecosystem suffers decreased biodiversity,simplification of biotic community structure,instability of the ecosystem,and ultimately the clear-water,macrophyte-dominated ecosystem gradually shifts to a turbid-water,algae-dominated ecosystem.This ecosystem succession mechanism is speculated to be caused by different nutrient utilization efficiencies of macrophytes and phytoplankton.The ultimate ecosystem succession trend of seriously eutrophic lakes is that a phytoplankton-dominated autotrophic lake shifts to a heterotrophic lake dominated by micro-organisms,protozoans. 关键词：湖泊生态系统湖泊富营养化生物多样性生态环境问题水体富营养化生物群落结构养分利用效率生态系统演替

相关文献

参考文献（62）
引证文献（82）
耦合文献（309）

参考文献(62)

引证文献(82)

耦合文献(309)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Lake eutrophication and its ecosystem response

参考文献(62)

引证文献(82)

耦合文献(309)

用户提示