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土壤侵蚀分布具有明显的时空变换特征,研究土壤侵蚀的时空变换对于科学地进行土壤退化防治有着重要的意义.本文采用3S(RS、GIS、GPS)技术手段,根据新疆艾比湖地区1990年(TM)、2001年(ETM+)和2007年(TM)三期遥感影像,综合多年气候水文资料、土地利用数据,在综合野外调查和室内判别的基础上,获取新疆艾比湖地区近20年土壤侵蚀变化信息.分析表明:1990年到2001年之间,新疆艾比湖地区轻度侵蚀面积明显增加,剧烈侵蚀面积减少,土壤侵蚀有所缓解;2001年到2007年之间,剧烈侵蚀面积加大,土壤侵蚀整体状况恶化.
The distribution of soil erosion has the characteristics of spatiotemporal transformation. Studying the spatio-temporal change of soil erosion is of great significance for the scientific prevention and control of soil degradation.In this paper, 3S (RS, GIS, GPS) TM), 2001 (ETM +) and 2007 (TM) remote sensing images. Based on multi-year climatic and hydrological data and land use data, based on comprehensive field investigation and indoor judgment, The results show that between 1990 and 2001, the mild erosion area in Xinjiang’s Aibi Lake area increased obviously, the area of severe erosion decreased and the soil erosion eased slightly. Between 2001 and 2007, the area of severe erosion The overall condition of large soil erosion is deteriorating.