光梗蒺藜草在内蒙古的入侵现状

Current Situation about Cenchrus incertus Invasion in Inner Mengolia of China

光梗蒺藜草在内蒙古主要分布在通辽,分布面积为816 924.9 hm2,占通辽市总面积的13.72%。赤峰、兴安盟和巴彦淖尔市也有分布。主要通过放牧、牲畜的流转以及车辆携带沿公路铁路线扩散。在内蒙古光梗蒺藜草可能进一步侵入和扩散的地区有乌兰布和沙地、毛乌素沙地、库布其沙漠、锡林浩特境内的浑善达克沙地、呼伦贝尔沙地、退化的沙质草场。

In Inner Mongolia Cenchrus incertus mainly occurred in Tongliao distributing 816 924.9 hm2 accounted for 13.72% of the total area.There was a little distribution of C.incertus in Chifeng,Xing＇anmeng and Bayannaoer city.The main invasion paths for C.incertus are expansed by grazing,transfer of livestock and vehicles carrying along roads and railways.In Inner Mongolia,the sandy area of Ulanbuhe,Maowusu,Kubuqi,Hunshandak,Hulunbeier and degraded sandy grassland could be further invaded and expanded by C.incertus.