气候变化对风水蚀复合区的影响  

The Effect of Climate Change on Wind-water Complex Erosion Region

作　　者：安志山[1] 李栋梁[2] 王涛[1] 张伟民[1] 屈建军[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所敦煌戈壁荒漠生态与环境研究站/沙漠与沙漠化重点实验室,甘肃兰州730000 [2]南京信息工程大学大气科学学院,江苏南京210044

出　　处：《中国沙漠》2012年第3期610-617,共8页Journal of Desert Research

基　　金：水利部公益性科研专项(201201047);国家重点基础研究发展计划项目(2007CB407203)资助

摘　　要：风水蚀复合区作为农牧交错带的敏感区域,对气候变化有着显著的响应。通过实地考察和气象资料的分析,厘定了风水蚀复合区的概念并对其范围加以界定。由于风水蚀复合区区内气候类型复杂、侵蚀动力多样、风季和雨季的交错分布及其脆弱的生态环境,造成水土流失和沙漠化相当严重,并发育了独特的地貌景观。风水蚀复合区的界限受降水的影响而呈南北摆动,干旱年,向东南方向移动;多雨年,向西北方向移动。The wind-water complex erosion region is a sensitive part of agro-pasture interlocked zone in northern China, and has significant response to global climate change. The concept and geographical scope of the wind-water complex erosion region have been defined through on-the-spot investigation and meteoro- logical data analysis. In the wind-water complex erosion region, wind and water have combined action, and ecological environment there is vulnerable. Therefore, the diverse weather and erosion forces give rise to soil erosion and desertification, which are serious in the wind-water complex erosion region. It has also de- veloped unique geomorphologic landscape. The boundary of wind-water complex erosion region is influenced by precipitation and it exhibits a characteristic of north-south direction swing. It moves to southeast in dry years, and to northwest in humid years.

关 键 词：气候变化 农牧交错带 风水蚀复合区 

分 类 号：P467[天文地球—大气科学及气象学]