青海云杉林森林群落营养元素含量研究

A study on Contents of Nurtients Elements for Picea Crassifolia Forest Community

本文对祁连山（北坡）寺大隆林区青海云杉森林群落进行了定位观测研究。主要测定了该系统乔木层、下木层（活地被物层）、枯落物层以及土壤中营养元素的含量，分析说明了９种养分元素在林木各器官中的含量及变化规律。研究结果对该森林生态系统的结构、功能及经营都有一定的现实指导意义。

A fixed site observation of Picea crassifolia forest communityin Sidalong forest zone in Qilian Mountain(north slope)was conducted.The contents of nutrient elements in overstorey,understorey(ground veget-ation), litter and soil were measured respectively.The contents and varia-tion laws of 9 elements in different organs of the trees were also analy-zed and illustrated respectively,These results will greatly contribute to abetter understanding of the forest ecosystem structure and function, and theforest management.