%0 Journal Article
%T Seasonal dynamics of ecosystem services of grassland in Qinghai-Tibetan Plateau<br>青藏高原草地生态系统服务功能的季节动态变化
%A YU Ge
%A LU Chun-xia
%A XIE Gao-di
%A <br>于格
%A 鲁春霞
%A 谢高地
%J 应用生态学报
%D 2007
%I 
%X Based on the theory of ecosystem services and by using RS and GIS techniques,the ecosystem services of grassland in Qinghai-Tibetan Plateau were analyzed and evaluated,with growth season as time unit.The results showed that the service of supplying biomass presented an up-down-up trend,and the peaks appeared in May and September.Its main affecting factors were PAR,soil moisture condition,and underground biomass.The service of carbon accumulation and oxygen release also presented up-down-up trend,which was related to the supplied biomass and its formation.As for the services of holding soil nutrients and water,the former had a peak in May,while the latter presented staggered variation due to the different water consumption characters of herbages at their different growth stages.
%K ecosystem services
%K grassland
%K dynamic change
%K Qinghai-Tibetan Plateau<br>生态系统服务功能
%K 草地
%K 动态变化
%K 青藏高原
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=124E25631F8E2169&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=F4B561950EE1D31A&eid=987EDA49D8A7A635&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=19