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祁连山草场和灌丛是当地牲畜的主要牧草来源 ,覆盖祁连山大约 3 0 %～ 40 %的面积 ,为了解祁连山森林牧场生态系统状况 ,对森林牧场生态系统的结构和功能作了一定的研究。同时 ,对 5种不同放牧强度下草场各物种所占的比例及牧场在不同改良方式下生产力的动态变化作了详细的调查 ,指出在不同放牧强度下 ,优良牧草的比例随放牧强度的增加而降低 ,杂类草的比例随放牧强度的增加而升高 ;森林及牧区的可持续管理要求不断完善各项技术、政策、法规和机构 ,同时还要求来自有关国家管理机构及财政部门的援助。
Grassland and shrublands in Qilian Mountains are the main source of pasture for local livestock, covering about 30% ~ 40% of the area in Qilian Mountains. To understand the status of forest and pasture ecosystems in Qilian Mountains, the structure and function of forest ranch ecosystems are studied. At the same time, we made a detailed investigation of the proportion of each species in the pasture under five different grazing intensities and the dynamic changes of the pasture productivity in different improved ways. It is pointed out that under different grazing intensities, the proportion of fine grasses increases with the increase of grazing intensity The percentage of miscellaneous grasses increases with increasing grazing intensity. The sustainable management of forests and pastoral areas requires continuous improvement of technologies, policies, regulations and institutions as well as assistance from the relevant national regulatory agencies and the financial sector.