SHENG Hai-yang,YANG Xue-jun,BAI Xian-zhou,et al.Analysis of Reason on Grassland Desertification in Sichuan in Watershed of Yellow River[J].Research of Soil and Water Conservation,2007,14(03):7-10.
四川黄河流域土地沙化原因分析
- Title:
- Analysis of Reason on Grassland Desertification in Sichuan in Watershed of Yellow River
- Keywords:
- the watershed of Yellow River in Sichuan; land desertification; cause; harm; eco-environment
- 分类号:
- S812
- 摘要:
- 根据2005年、2006年现场考察和2005年1：25万TM图像处理、判读研究获得的信息，结合前人研究的资料，论述了四川黄河流域土地沙化的自然因素和人为因素.在自然因素中，地质因素和气候变化是主要影响因素.其中地质因素是导致草地沙化的主要内动力影响因素，气候变化则是其主要的外动力影响因素.人为因素最主要的原因是草地超载放牧，其次开垦、樵采中药、开矿等.人为因素在自然因素的基础上加速了该地区草地退化和沙化的速度.
- Abstract:
- Many cause of grassland desertification in Sichuan in watershed of Yellow River are presented,using the method of romote sensing and on spot serveying.The results show that grassland desertification develops as a result of the comprehensive effects of environment and human activity.The grassland desertification has become serious eco-environment problem in Sichuan in watershed of Yellow River.
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备注/Memo
收稿日期:2006-6-10
基金项目:中国地质调查局项目：川滇黔资源与生态地质背景调查及数据更新，四川1：25万若尔盖县、红原县、炉霍县、马尔康县幅区调资助(任务书编号：基[2005]003-04;工作项目编码：1212010510304)
作者简介:盛海洋(1963- )，男，陕西宝鸡人，副教授，成都理工大学地球科学学院博士生，主要从事第四纪地质与生态环境教学和研究工作.