云贵高原湖区湖库总磷和叶绿素a浓度参照状态研究  

Study on Total Phosphorus and Chlorophyll-a Reference Conditions in Yungui Plateau Ecoregion Lakes and Reservoirs

作　　者：陈奇[1] 霍守亮[1] 席北斗[1] 昝逢宇[1] 何卓识[1] 

机构地区：[1]中国环境科学研究院,北京100012

出　　处：《环境工程技术学报》2012年第3期184-192,共9页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07106-001)

摘　　要：利用云贵高原湖区54个湖泊和水库近20年的监测数据,通过参照湖泊法、群体分布法和三分法等描述统计方法建立了总磷和叶绿素a浓度的参照状态,并构建了形态指数(morphoedaphic index,MEI)模型和经验模型(包括一元线性回归模型和相对复杂的多元线性回归模型)进行推断。各方法的结果基本一致,云贵湖区湖泊总磷和叶绿素a浓度的参照状态分别为0.01mg/L和2mg/m3,处于贫营养状态或中营养状态的下限。A dataset of 54 lakes and reservoirs in Yungui Plateau Ecoregion was assembled. Total phosphorus （TP） and chlorophyll-a （Chl-a） reference conditions were derived from descriptive statistics approaches, such as reference lake approach, population distribution approach and trisection approach. Simple predictive models based on the morphoedaphic index （MEI） and empirical models, including unary linear regression model and relatively complicated multiple linear regression model, were developed for estimating reference TP and Chl-a concentrations. The results of both methods broadly agreed, and it was indicated that the reference conditions of TP and Chl-a concentrations in Yungui Ecoregion lakes and reservoirs were 0. 01 mg/L and 2 mg/m^3, respectively, which suggested that the reference conditions corresponded to oligotrophic-mesotrophic states.

关 键 词：营养物 参照状态 总磷 叶绿素A 云贵高原湖区 

分 类 号：X524[环境科学与工程—环境工程]