【摘要】 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。更多还原

【Abstract】 Qilian Mountains meadow and shrub are the main food resources for animals,and they cover about 40%-50% of the total land area. The structural and functional aspects of the ecosystem was studied and to promote a sustainable animal production system. Meanwhile,studies with 5 different grazing intensities on pasture and various methods for improving degraded pasturelands have been conducted and developed in the region. The result indicated that the percentage of grasses,sedges and Dasiphora fruticasa shrub (leaves,tender stem) decrease with the increase of stocking intensity and the percentage of weeds increase with the stocking intensity,and sustainable management of the grazing forest required the improvement of technology, policy laws, as well as the establishment of related institutions, also they need the help from the government.更多还原