| 摘要: |
| 依据1980-1992年全国20个省55座水库渔业资源调查数据,运用R型聚类分析和主成分分析方法对48项指标间的层次性进行分析,水库渔业营养类型划分标准的指标层次体系可确定为:第一大层次(水库形态与自然环境)包括地理,气候,水深,面积和体积.土壤.水文等6个小层次;第二大层次(水的理化性质)包括主要离子,磷素,有机物,溶解气体,氮素等5个小层次;第三大层次(生物学)包括浮游植物,浮游动物,初级生产力,鲢鳙生长等4个小层次. |
| 关键词: 水库 渔业营养类型 标准 指标层次 |
| DOI：10.18307/1999.0310 |
| 分类号: |
| 基金项目:水利部标准化资助项目 |
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| On the Standard of Fishery Trophication Classification of Reservoirs in China:I. Establishment of Target Layers |
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DAI Ze-gui1, CAO Ke-ju2
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1.Institute of Reservoir Fisheries, Ministry of Water Resources & Chinese Academy of Sciences, Wuhan 430079;2.Fishery Chllege, Huazhong Agricultural University, Wuhan 430070
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| Abstract: |
| The layer system of 48 targets was studied by using R-cluster analysis methods with fishery resource data (investigated from 1980 to 1992) of 55 reservoirs of 20 provinces in China. After comparing with the results of the two analysis methods, the target layer system for the fishery trophic classification of reservoirs in China was established. The 48 targets could be divided into 3 layers. The first layer includes 6 sub-levels: geography level (latitude-LN, illumination hours-IH), climatology level (annual no frost days-NFD, annual mean air temperature-AT, annual rainfall-RF), water depth level (maximum depth-MAXD, mean depth-MD), area and volume level (fishery area-FA, total storage capacity-TSC, profit storage capacity-PSC, dead storage capacity-DSC), soil level (catchment area-CA, draw-down area-DDA, DDA to FA index-DFI) and hydrology level (ratio of water exchange-RWE, CA to FA index-CFI, CA to TSC index-CCI).The second layer includes 5 sub-levels: major ions level, electrical conductivity-EC, total alkalinity-TA, total hardness-TH, value of pH-PH, TA to TH index-AHI), phosphorus level (phosphate phosphorus-P04-P, total phosphorus-TP), organic matter level (chemical oxygen demand-COD), dissolved gas level (dissolved oxygen-DO) and nitrogen level (ammonium nitrogen-NH4-N, nitrite nitrogen-N02-N, nitrogen level nitrogen-N3, total nitrogen-TN).The third layer includes 4 sub-levels: phytoplankton level (density-DP, biomass-BP), zooplankton level (density-DZ, biomass-BZ), primary productivity level (phytoplankton primary productivity-PP), fish growth level (body length-SL and weight-SW and fatness-SFAT of two years silver carp, body length-BL and weight-BW and fatness-BFAT of two years bighead carp). |
| Key words: Reservoir fishery trophication type standard target layers |
