%0 Journal Article
%T POTENTIAL PRODUCTIVITY AND LIVESTOCK CARRYING CAPACITY OF HIGH-FRIGID GRASSLAND IN CHINA<br>中国高寒草地生产潜力与载畜量研究
%A YANG Zheng-li
%A YANG Gai-he
%A <br>杨正礼
%A 杨改河
%J 资源科学
%D 2000
%I 
%X Analysis of the potential productivity and livestock carrying situation in China's high\|frigid grassland (CHFG) facilitated drawing the following conclusions: 1)annual rainfall is the key factor limiting the climatic potential productivity of CHFG. 2)The climatic potential productivity of CHFG is 6 568\^6kg/hm\ 2,and the grassland potential productivity is 2 971\^4kg/hm\ 2,but the actual productivity is 1 632\^2kg/hm\ 2 which is only 54\^9% of the grassland potential productivity and 24\^8% of the climatic one. This shows that there is a big room for developing grassland productivity. 3)The maximum theoretical livestock carrying capacity of the whole CHFG is 147\^71 million standard sheep and suitable carrying capacity is 79\^32 million. With continuous exploitation of the grassland potential productivity in the future,the suitable carrying capacity will increase by 1\^46 and 1\^76 times respectively for the years 2010 and 2020. 4)There exists an overloading of 24\^64 million sheep on CHFG at present,being as high as 28\^6%. 5)There is great difference in productivity and livestock carrying capacity in different types of CHFG,it is necessary to adopt measures suitable to different places.
%K China'shigh\|frigid grassland
%K Climatic potential grassland productivity
%K Potential grassland productivity
%K Livestock carrying capacity
%K Overloading rate<br>中国高寒草地
%K 草地气候生产潜力
%K 草地生产潜力
%K 载畜量
%K 超载率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=8C4E31663A83984437BED31F6CDBD440&yid=9806D0D4EAA9BED3&vid=BC12EA701C895178&iid=E158A972A605785F&sid=AA76E167F386B6B3&eid=E44E40A2398D4F2A&journal_id=1007-7588&journal_name=资源科学&referenced_num=21&reference_num=8