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.
出处
《中国沙漠》
CSCD
北大核心
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
关键词
气候变化
农牧交错带
风水蚀复合区
climate change
agro-pasture zigzag zone
wind-water complex erosion region
