青海省海南州自然因素和载畜量对牧草产量的影响  

Effects of natural factors and livestock capacity on forage yield in native grassland of Hainan prefecture, Qinghai province, China

作　　者：范青慈[1] 杜铁瑛[1] 王立亚[1] 杨力军 

机构地区：[1]青海省草原总站,青海西宁810008 [2]青海省畜牧厅项目办,青海西宁810008

出　　处：《草业科学》2002年第2期16-18,共3页Pratacultural Science

基　　金：青海省海南州国际农业发展基金"农业综合开发项目区"草场;牲畜基本情况调查及监测内容

摘　　要：以天然草地为研究对象,对海南州5个县天然草地的牧草产量与主要自然因素、载畜量的影响进行了研究分析。结果表明:海南州天然草地牧草产量主要受降水、≥0℃积温、载畜量三因素的制约、干扰(F>F0.01),其中降水为主导因素,其次为载畜量,再次为≥0℃积温。Effects of natural factors and livestock capacity on forage yield were studied in native grassland over 5 counties of Hainan prefecture, Qinghai province, China. The results indicated that rainfall, ≥0℃ accumulated temperature and livestock capacity were main 3 factors affected the forage yield. However, rainfall was the dominant factor, livestock capacity and ≥0℃ accumulated temperature were the minor.

关 键 词：自然因素 载畜量 牧草产量 回归分析 青海 海南州 天然草地 降水 

分 类 号：S812[农业科学—草业科学]