气候变化对陕北黄土高原水土流失的影响

The Impact of Climate Change on Soil Erosion in the Loess Plateau in Northern Shaanxi Province

利用"3S"技术探究气候变化对陕北黄高原的水土流失的影响,通过分析2000～2010年陕北黄土高原水土流失的重要影响因子(降雨、植被、坡度、温度、地表风速),结合水土流失评价指标———风险指数,研究气候变化对陕北黄土高原水土流失的影响。结果表明,2000～2010年陕北黄土高原的风险指数呈上升趋势,气候变化对陕北黄土高原水土流失产生了不利影响。因此,开展水土保持工作刻不容缓,以防止生态环境进一步恶化。

＂3S＂ technology was used to explore the impact of climate change on soil erosion in the Loess Plateau of northern Shaanxi. Important factors including rainfall, vegetation, slope, temperature and surface wind speed affecting soil erosion in the Loess Plateau of northern Shaanxi were analyzed from 2000 to 2010, combined with soil erosion evaluation-risk index, the impact of climate change on soil erosion in the Loess Plateau in northern Shaanxi Province was researched. Risk index showed an ascendant trend from 2000 to 2010. Climate change adversely affected soil erosion in the Loess Plateau of northern Shaanxi. Carrying out soil and water conservation engraved work brooks no delay to prevent further deterioration of the ecological environment.