摘要
本文通过对青海省天然草地、人工草地、退化草地数量的统计以及草地类型、分布现状的调查 ,结果表明 :草地在维持陆地生态系统的平衡、保护生物多样性中的作用十分显著。草地不仅是农业生态系统的重要生物资源 ,而且对发展高效、持续的生态农业是不可缺少的。对改善和保护一个地区的环境 ,防止水土流失 。
According to investigate type of grassland and distribution of natural meadow、artificial meadow、retrogressive meadow in Qinghai province We draw a conclusion:grassland is a kind of important biologic resources of a ricultural ecological system,it not only play a important role in supporting balance of terrestrial ecosystem and protecting biodiversity,but also it can not be absent in the sustainable developing ecoagricultural Grassland can improve and protect environment of a region, and can prevent soil erosion and blowing sand
出处
《青海草业》
2001年第1期29-32,共4页
Qinghai Prataculture
基金
青海省科委资助项目! ( 990 70 6)
关键词
草地
生态系统
grassland
ecological system
action analysis
