青海省海北州同宝牧场草原地下鼢鼠调查与灭治  

The Essays on Investigation into Underground Sokhors,deratization and Protection of Grasslands of TongbaoGrasslands in Haibei Autonomous Region of Qinghai Province

作　　者：阿翰林 吉汉中 赵晓军 杨生联 

机构地区：[1]青海省海北州草原工作站,西海810200 [2]青海省平安县第二中学

出　　处：《青海畜牧兽医杂志》2002年第6期19-21,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：.NULL.

摘　　要：海北州同宝牧场地下鼢鼠平均密度为 3 43 4只 hm2 ,鼢鼠土丘密度最高达 2 42 5个 hm2 。鼢鼠当年土丘数、土丘覆盖度、牧草损失量均与鼢鼠密度有显著的线性相关关系 ,其回归方程为 :Y土丘数 =0 1919+ 0 0 189x ;Y覆盖度 =0 2 18+3 2 68;Y损失量 =0 2 2 + 0 15 65x。通过灭治 ,最高灭效 94 7% ,最低灭效 90 1% ,平均灭效 92 4% ,达到“青海省草地鼠虫害灭治验收标准”。There are 3.434 underground sokhors mean density of per hectare at Tongbao Grasslands,but some hillocks,sokhors even get 2,425 mean density of per hectare of one hillock.Sokhors mean density is concerned with numbers of hillocks,quantity of covered with hillocks and quantity of losing of grasslands.The regression equation is:y numbers of hillocks =0.1919+0.0189x;y quantity of covered with hillocks =0.218+ 3 .2 6 8x ; yquantityoflosinggrasslands =0 .2 2 + 0 .1 56 5x .Afterderatizationandprotectionofgrasslands ,themaximumofderatizationrateis 94 .7% ,the minimumofderatizationrateis :90 .1 % ,theaverageofderatizationrateis 92 .7% ,atlastitwouldgetthestandardofderatizationandeliminate insectpestofQinghaiProvincialGrasslands.

关 键 词：青海 海北州 同宝牧场 草原 地下鼢鼠 弓箭灭治 

分 类 号：S812.6[农业科学—草业科学]