摘要
根据科尔沁地区的沙化监测资料和科尔沁右翼中旗近50年的沙漠化土地的动态变化,分析了气候因素对科右中旗现代沙漠化过程的影响。该区域现代气候特点表现为年均温度增加,而年降水量波动变化无显著上升或下降趋势。气候的变暖,使地表蒸发量加大,干旱化趋势加剧,加快了沙漠化进程。气候还间接地通过人类自发对气候波动的响应而产生的经济活动来加速沙漠化过程。
The evolvement of desertification in the Right - Wing Central Banner of Kerqin for the last 5 decades was dynamically monitored and analyzed based on the grading indexes of desertification and the effective monitoring method. In addition, based on the changes of temporal - spatial distribution of desertification, the climate impacts on the process of desertification is discussed. The annual mean temperatures have a significant increase in this period. However, no significant trends were found from precipitation data. Because the climate becomes warmer and warmer, evaporate quantity of the earth~ surface is increased, and the drought is aggravated. As a result, the development of desertification is accelerated. On the other hand, the climatic variation accelerates the development of desertification indirectly by means of the economic activities of mankind which respond to it.
出处
《内蒙古林业科技》
2007年第1期26-28,共3页
Journal of Inner Mongolia Forestry Science and Technology
关键词
沙漠化过程
气候因素
科右中旗
降水量
process of desertification
climate
Right - Wing Central Banner of Kerqin Region
precipitation
