祁连山北坡草地资源及退化现状分析  

Analysis on grassland resources and their deterioration situation on North Slope of Qilian Mountains

作　　者：闫月娥[1] 王建宏[1] 石建忠[1] 周晓雷[1] 吴小舟[1] 吕子君[1] 陈道军[1] 魏秀元[1] 李健[1] 朱燕[1] 

机构地区：[1]甘肃省林业调查规划院,甘肃兰州730020

出　　处：《草业科学》2010年第7期24-29,共6页Pratacultural Science

基　　金：甘肃省祁连山水源涵养区生态环境保护与综合治理专项资金(C-EEPC-OP-1)

摘　　要：采用草地定期监测资料,分析了祁连山北麓草地资源及其退化草地现状。结果表明,2008年祁连山北麓现有草地面积433.00万hm2,可利用草地面积为391.00万hm2,草地鲜草总产量565.10万t;退化草地面积达332.00万hm2,其中沙化型退化草地27.22万hm2,病虫害型退化草地58.38万hm2,鼠兔害型退化草地49.30万hm2,毒草害型退化草地42.50万hm2,盐渍化型退化草地5.67万hm2,分别占研究区草地面积的6.29%、13.55%、11.44%、9.86%和1.32%。The grassland monitoring data on North Slope of Qilian Mountains were used to analyze the grassland resources and their deterioration situation.The results showed that the total grassland area,usable grassland area,deteriorated grassland and the fresh grass yield were 4.33 ×106 hm2,3.91×106 hm2,3.32×106 hm2 and 5.651×109 kg in 2008 respectively.The areas of desertification grassland,pest damaged grassland,rodent damaged grassland,poisonous grasses//weeds type grassland and salinized grassland were 2.722×105 hm2,5.838×105 hm2,4.93×105 hm2,4.25×105 hm2 and 5.67×104 hm2 respectively.Accordingly,the proportions of the different deteriorated grassland area to the total grassland area in research region were 6.29%,13.55%,11.44%,9.86%,and 1.32%.

关 键 词：祁连山北麓 草地资源 退化草地 现状分析 

分 类 号：S812.8[农业科学—草业科学]