Food-chain Model of Grassland Degradation and Its Restoration Process in Northern Tibet Plateau: A Case Study in Nierong County

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	Food-chain Model of Grassland Degradation and Its Restoration Process in Northern Tibet Plateau: A Case Study in Nierong County
	Zhou Wei（周伟） ; Zeng Yunying ; Liu Shuzhen（刘淑珍）
刊名	Wuhan University Journal of Natural Sciences
	2006
卷号	11 期号:4 页码:963-968
关键词	grassland degradation food-chain restoration northern Tibetan Plateau Nierong County
合作状况	其它
英文摘要	Based on the model of grassland climate ecological productivity, the process of grassland degradation and its restoration mechanism in northern Tibetan Plateau were discussed by the model of food-chain in which the environmental and human factors were corrected. The results of case study in Nierong County showed that: ① the climate trend of becoming warmer, more droughts and gales were conflicted with the restoration of grassland degradation, even under level of perfect management the climate ecological productivity was declined from 89.3 kg/m2 of 1983 to 71.8 kg/m2 of 2003; ② from 1983 to 2003, the population increased fast, while the variation of livestock on hand was little, and the cost of its maintaining is rapid grassland degradation; ③ on the present condition of overgrazing, the livestock on hand can be maintained on the level of theoretical carrying capacity in 2033 by applying the mechanism of food-chain in grassland ecological system controlled with expected coefficients, so that to realize the policy of determining the quantity of livestock according to grass growth.
资助信息	the Plan of Tibet Autonomous Region State Ecological Safe Shelter Zone on the Tibet Plateau (2004–2005)
语种	英语
公开日期	2010-11-12
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2523]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
推荐引用方式 GB/T 7714	Zhou Wei,Zeng Yunying,Liu Shuzhen. Food-chain Model of Grassland Degradation and Its Restoration Process in Northern Tibet Plateau: A Case Study in Nierong County[J]. Wuhan University Journal of Natural Sciences,2006,11(4):963-968.
APA	Zhou Wei,Zeng Yunying,&Liu Shuzhen.(2006).Food-chain Model of Grassland Degradation and Its Restoration Process in Northern Tibet Plateau: A Case Study in Nierong County.Wuhan University Journal of Natural Sciences,11(4),963-968.
MLA	Zhou Wei,et al."Food-chain Model of Grassland Degradation and Its Restoration Process in Northern Tibet Plateau: A Case Study in Nierong County".Wuhan University Journal of Natural Sciences 11.4(2006):963-968.