摘要
利用遥感技术与地理信息系统技术的结合,对重庆合川市的土壤侵蚀状况进行了时空变化研究。研究结果表明,合川市的土壤侵蚀状况在侵蚀面积和程度上都有不同程度的改善;土壤侵蚀具有时空差异大,侵蚀与水、热基本同期,侵蚀高峰超前于降水高峰的特点。
The remote sensing technique was used in combination with the geographic information system (GIS) technique in a study to monitor the spatial and temporal changes in soil erosion in Hechuan, Chongqing. The results showed that soil erosion in the region studied was being alleviated, both in area and in extent. Soil erosion showed several characteristics: great difference in space and time; erosion occurs synchronously with water and heat and the peak-hour of soil erosion arrives before the rush-hour of raining.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2003年第5期463-466,共4页
Journal of Southwest Agricultural University
基金
重庆市科委重点攻关项目"应用WEPP模型进行水土流失动态监测研究"(19990906)资助
关键词
土壤侵蚀
时空变化
遥感
soil erosion
spatial and temporal change
remote sensing
