水土保持学报2009，Vol.23Issue(5)：56-60,108,6.
基于GIS的呼伦贝尔地区土壤侵蚀动态变化研究
Study on Dynamic Changes of Soil Erosion in Hulunbeir Based on GIS
摘要
Abstract
Based on three periods TM image data of years in 1995,2000 and 2005, and will do some quantitative research on the dynamic soil erosion of Hulunbeir area in different periods using ArcGIS 9. 2 software and RUSLE. It also predicts soil erosion of Hulunbeir area using the Markov models to compare the situations in 2010 and 2015. The result shows that, in the past ten years, the degree of soil erosion in Hulunbeir area made the tiny degree erosion as clue, above the light degree erosion in Hhulunbeir area reaches up 10% of the total area. Among all, the tiny degree soil erosion in Hulunbeir decreased by 534. 33 km2, while the region which is above light degree erosion increased by 580. 02 km~2 from the year of 1995 to year of 2000. This explains that the soil erosion of Hulunbeir area shows the increasing tendency in five years. From 2000 to 2005, the tiny degree soil erosion in Hulunbeir is increased by 8 326. 69 km~2 and above the light degree e-rosion region in Hulunbeir is decreased by 8 360. 54 km~2. This shows the decreasing tendency of the soil erosion intention in Hulunbeir region. And comparing to 2000 year, the soil erosion in Hulunbeir region have undergone great changes. This result is caused by adopting the eco-protection of the local government. Forecasting for 2010 and 2015, the soil erosion intensity for Hulunbeir area will be alleviated, among which above the light degree erosion land area will be decreased by 24. 8% and 38% proportion to that of 2005.关键词
土壤侵蚀/动态变化/马尔科夫模型/呼伦贝尔Key words
soil erosion/dynamic change/Markov process/Hulunbeir分类
农业科技引用本文复制引用
吕世海,陈贵廷,叶生星..基于GIS的呼伦贝尔地区土壤侵蚀动态变化研究[J].水土保持学报,2009,23(5):56-60,108,6.基金项目
国家环境保护公益行业科研专项(200809125) （200809125）
中央级公益性科研院所基本科研业务专项(2009KYYW07) （2009KYYW07）
