Approaches to Establishing Reference Conditions for Nutrient Criteria Development
- 作者：Chen qiHuo shouliangXi beidouZan fengyuLi xiujin
- 会议时间：2009-11-01
- 关键词：nutrient criteria ; reference condition ; lake population distribution approach ; paleolimnological reconstruction
- 作者单位：Chen qi(Beijing University of Chemical Technology,Beijing 100029;Chinese Research Academy of Environment Sciences, Beijing 100012)Huo shouliang,Xi beidou,Zan fengyu(Chinese Research Academy of Environment Sciences, Beijing 100012)Li xiujin(Beijing University of Chemical Technology,Beijing 100029)
- 母体文献：第十三届世界湖泊大会论文集
- 会议名称：第十三届世界湖泊大会
- 会议地点：武汉
- 主办单位：中国环境科学学会
- 语种：chi
摘要
Establishing nutrient reference condition of lakes in ecoregion is a critical part during nutrient criteria development.Reference lake approach,lake population distribution approach,trisection approach,regression approach,model extrapolation and paleolimnological reconstruction are analyzed in this paper.Several approaches are applied to establish reference condition ranges of Chaohu Lake for the main variables (i.e.TN,TP,chlorophyll a and Secci depth) by using monitoring data and 5th percentile of lake population distribution is recommended as reference conditions.Thus,threshold rang of Chaohu Lake for TP is 0.023~0.27mg/L,TN is 0.62~0.63mg/L,chlorophyll a is 0.65~0.67mg/m3,and SD is 0.65~0.72m.