干旱区生态环境知识资源中心(Arid): 近50a西北干旱区气候变化趋势及对荒漠化的影响

Arid

	近50a西北干旱区气候变化趋势及对荒漠化的影响
其他题名	Climate Change and Surface Runoff Change Impact on Desertification in the Arid Area of Northwest China in Resent 50 Years
	任朝霞 1; 杨达源 2
ISSN	1003-7578
出版年	2008
卷号	22 期号:4 页码:91-95
中文摘要	西北干旱区干旱少雨，生态环境脆弱，土地荒漠化严重。本文根据近19512000年的逐月平均气温和月降水量资料研究了我国西北干旱区气候变化趋势，并结合近年来西北干旱区地表径流量变化，分析其对准噶尔盆地、塔里木盆地、河西走廊和柴达木盆地土地荒漠化影响。研究结果表明：（1）近50a西北干旱区气温都升高，变暖最显著的是北疆和柴达木盆地。降水量有增加趋势，其中南疆降水量增加趋势最大。北疆蒸发量有减少趋势外，其他区蒸发量都在增加，尤其南疆蒸发量增加趋势最大。（2）近50a来由于气候变暖，使蒸发量增大，塔克拉马干沙漠、河西走廊沙漠区和柴达木沙漠区的干旱危害加剧，这必然导致沙漠化的易发和其进程的加速。北疆气温升高，降水量增加，而蒸发量减少，有利于古尔班通古特沙漠区沙漠化进程的减缓。（3）气候变化和地表径流量变化有利于准噶尔盆地和塔里木盆地的土地荒漠化逆转，而使河西走廊和柴达木盆地的土地荒漠化发展迅速。
英文摘要	Based on the monthly mean temperature and precipitation data of 21 stations in resent 50 years, the trends of climate change and variation of surface runoff change were studied and analyzed in order to know their influence on desertification in Junggar Basin, Tarim Basin, Hexi Corridor and Qaidam Basin. The results showed that in the arid area of Northwest China in resent 50 years, temperature was increasing, remarkable warming in the northern Xinjiang and Qaidam Basin. Precipitation was increasing, and obvious in the southern Xinjiang. E- vaporation all were increasing except in the northern Xinjiang, especially in the southern Xinjiang. （2） Evaporation was increased due to climate warming in resent 50 years. Taklmakan Desert, deserts of Hexi Corridor and Qaidam Basin were much more drought, which resulted in accelerative desertification course. Warming climate, increased precipitation and decreased evaporation in the northern Xinjiang were in favor of slowdown of desertification Gurbantonggut Desert. （ 3 ） Climate change and surface runoff change were in favor of desertification reversion of Junggar Basin and Tarim Basin, but their change would accelerate the development of desertification in Hexi Corridor and Qaidam Basin.
中文关键词	气候变化 ; 荒漠化 ; 西北干旱区
英文关键词	climate change surface runoff change desertification the arid area of Northwest China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3241993
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222386
作者单位	1.南京师范大学地理科学学院, 南京, 江苏 210046, 中国; 2.南京大学城市与资源学系, 南京, 江苏 210093, 中国
推荐引用方式 GB/T 7714	任朝霞,杨达源. 近50a西北干旱区气候变化趋势及对荒漠化的影响[J],2008,22(4):91-95.
APA	任朝霞,&杨达源.(2008).近50a西北干旱区气候变化趋势及对荒漠化的影响.,22(4),91-95.
MLA	任朝霞,et al."近50a西北干旱区气候变化趋势及对荒漠化的影响".22.4(2008):91-95.

条目包含的文件
条目无相关文件。

个性服务

谷歌学术

百度学术

必应学术

相关权益政策

收藏/分享