摘要
为实现水库水体修复及维护,生物群落结构得到调整和优化、实现生态资源的高效利用和可持续发展,对临澧县5座中型水库的浮游生物和水体理化因子展开调查,确定当前临澧县水库水环境健康状态以及鲢鳙生态渔业容量。结果显示:各水库总氮为0.46~1.06 mg/L,总磷为0.016~0.054 mg/L;官亭、高桥、群英、同欢、浮山年均生物量分别为11.2、16.5、0.9、2.4、4.2 mg/L,浮游动物年均生物量分别为45.1、28.4、32.3、78.1、10.9μg/L。临澧县水域水质状况良好,除官亭水库处于Ⅲ类水质外,高桥、群英、同欢、浮山4个水库均达到Ⅱ类水体标准。临澧县各水库鲢鳙鱼产力为:官亭水库225 kg/hm^2,高桥水库195 kg/hm^2,群英水库139.5 kg/hm^2,同欢水库153.75 kg/hm^2,浮山水库106.5 kg/hm^2。
In order to maintaining and repairing the water environment of the reservoir,biological community structure can be adjusted and optimized,ultimately achieve biological resources high efficient use and sustainable development.Five medium-reservoirs in Linli County were assessed in this study,the health status of water environment and fishery ecological capacity of silver carp and bighead carp were estimated via the investigation of the physicochemical parameters and plankton.The range of total nitrogen and phosphorus in each reservoir were 0.46~1.06 mg/L and 0.016~0.054 mg/L.The annual biomass of phytoplankton in Guanqing,Gaoqiao,Qunying,Tonghuan,Fushan reservoir is 11.2,16.5,0.9,2.4,4.2 mg/L,respectively;and annual biomass of zooplankton in Guanqing,Gaoqiao,Qunying,Tonghuan,Fushan reservoir is 45.1,28.4,32.3,78.1,10.9μg/L.The results showed the water quality of of Gaoqiao,Qunying,Tonghuan,Fushan reservoirs areⅡgrade,and the Guanqing reservoir isⅢgrade.The natural baits for silver carp and bighead carp in each reservoir were phytoplankton and zooplankton,so the productions of silver carp and bighead carp in reservoirs of Guanting,Gaoqiao,Qunying,Tonghuan,Fushan were 225 kg/hm^2,195 kg/hm^2,139.5 kg/hm^2,153.75 kg/hm^2,106.5 kg/hm^2 respectively.
作者
罗丛强
毛亮
雷澄
蒋东利
黎益活
杨品红
LUO Cong-qiang;MAO Liang;LEI Cheng;JIANG Dong-li;LI Yi-huo;YANG Pin-hong(Hunan Engineering Research Center of Aquatic Organism Resources and Environmental Ecology,Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area,Hunan University of Arts and Science,Changde 415000,China)
出处
《环境生态学》
2020年第6期73-78,共6页
Environmental Ecology
基金
博士启动基金项目(16BSQD15)
大学生创新训练项目(201810549010)
常德市重点项目(2015SK01)
中央引导地方科技发展专项资金项目(2017CT5013)
湖南省教育厅一般项目(19C1257)联合资助。
关键词
水库
浮游生物
水质评价
鱼产力
reservoir
plankton
water quality assessment
fish productivity