摘要
选取位于科尔沁沙地腹地的奈曼旗为研究对象,分析了研究区1977到2009年沙漠化进程情况。研究结果表明:沙地面积从1977年开始呈上升趋势,1989年后有所减少。研究发现年降水量和耕地面积的变化对沙地面积的影响较大,退耕还林还草和禁牧政策的提出对沙漠化防治起到了积极作用。
The Naiman in horqin sandy land as the research object.The desertification situation in the study area were analyzed from 1977 to 2009.The results showed that the sand area began to rise from 1977 and decrease from 1989.It also found that the change of annual precipitation and the area of the farmland had larger influence on the sand area.The returning farmland to forest and grassland and grazing prohibition policy played a positive role in prevention and control of desertification.
出处
《内蒙古农业科技》
2014年第3期88-89,共2页
Inner Mongolia Agricultural Science and Technology
关键词
沙漠化
降水量
平均气温
奈曼旗
Desertification
Precipitation
Average temperature
