Preliminary Study on Classified Index System of Grazing Subalpine Meadow in Northwest Sichuan

作者：Gan You-min, Q. Z. Ying, Yuanjia Luo, Wang Qin, Ling Fei, Yanchun Wang · 发表于：UKnowledge (University of Kentucky) · 年份：2007 · 被引用次数：1 · 研究领域：Rangeland Management and Livestock Ecology、Plant Ecology and Soil Science、Forest, Soil, and Plant Ecology in China

The methods in which different of space distribution stands for progress of time and the dimension analyses were used to study the grazing degraded alpine meadow in Northwest Sichuan,quantitative characters of alpine meadow plant community under the four grazing intensity of ero-grazing,light-grazing,middle-grazing and heavy-grazing were studied.Based on the investigated results from the plots and statistical screen out the qualitative and quantitative evaluation indexes,including the representative trait such as floristic composition of alpine meadow plant community、the standing crop and productivity of alpine meadow,the content of soil organic matter,combining with the characters of vegetation,soil and meadow productivity indexes etc.The classified index system of the grazing-degraded alpine meadow in north-west Sichuan was drafted.