安徽农业科学2011，Vol.39Issue(24)：14788-14790,3.
全球气候变化下陕北黄土地貌的环境演变
The Environmental Landscape Evolution of the Loess under the Background of Global Climate Change
赵昆昆 1周宝同 1王晓喆 2刘敬才 1冯晓红 1陈春波1
作者信息
- 1. 西南大学地理科学学院,重庆北碚400715
- 2. 陕西师范大学旅游与环境学院,陕西西安710061
- 折叠
摘要
Abstract
[Objective] The aim was to study the environment evolution of Shanbei Loess landscape under the background of global climate changes. [ Method] The annual and monthly temperature and precipitation in Yulin area in north Shanxi from 1952 to 2009 were selected, and by dint of linear regression and M - K mutation, the Loess land form evolution under the global climate change was studied. [ Result] The temperature in Yulin area showed increasing tendency from 1952 to 2009 at a speed of 0,287 ℃/10a. The year 1994 was a year of mutation of temperature; precipitation decreased at speed of 8. 262 mm/10a and the precipitation fluctuated largely in 1960s, and stably in 1970s, 1980s and 1990s. It showed drying tendency. The climate in north Shanxi was becoming warmer. The extreme dry and flood incident, especially the rising drought occurrence frequency had more serious endangerment to the fragile ecological environment. The "warmer drought" of climate worsened the environment in north Shanxi, with temperature rising and worsening drought; reduction of precipitation made the wind and sand more active; the frequency of sandstorm increased; desertification of land furthered; the water and soil losses in Loess was serious and might led to degradation of land in north Shanxi. [Conclusion] The study provided theoretical basis for the ecological and environmental construction in the region.关键词
气候变化/黄土地貌/环境演变/陕北Key words
Climate changes/ Loess landscape/ Environment evolution/ North Shaanxi分类
天文与地球科学引用本文复制引用
赵昆昆,周宝同,王晓喆,刘敬才,冯晓红,陈春波..全球气候变化下陕北黄土地貌的环境演变[J].安徽农业科学,2011,39(24):14788-14790,3.
