摘要
近年来由于气候变化和长期的不合理利用,日益加剧的草地退化威胁着青海省草地生态系统的健康。草地分类经营从区域全局的角度协调了草地利用和保护之间的矛盾,为有效遏止草地退化、实现草地资源的可持续利用提供了一个全新的思路。本研究在估算和分析青海省草地生态和经济两大收益的基础上,提出用收益差异指数(BDI)划分草地分类经营区,将青海省草地分为保护性草地和生产性草地两大类。其中保护性草地面积为2.841 44×107hm2,占草地总面积的46.27%;生产性草地的面积为3.299 04×107hm2,占草地总面积的53.73%。
Due to the global climate change and improper utilization,the grassland degradation is threatening the grassland ecosystem health in Qinghai Province.The classification management for grassland proposes a new approach of solving the contradiction between grassland protection and utilization in order to control the grassland degradation and achieve the sustainable utilization of grassland resources.Based on the estimation and analysis of ecological and economic benefits of grassland,the index of benefit difference index（BDI） was provided to divide the management regions and the grassland was grouped into conservation region and production region.In which,the grassland areas for conservation and production were 2.841 44×107 hm2（46.27% of total grassland area） and 3.299 04×107 hm2（53.73% of total grassland area） respectively.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第8期15-22,共8页
Pratacultural Science
基金
教育部科技创新工程培育资金项目(708089)
关键词
生态收益
经济收益
收益差异指数
保护性草地
生产性草地
青海省
ecological benefit
economic benefit
BDI
conservation grassland
productive grassland
Qinghai Province
