| 陈起伟，卢绍香.岩溶区水土流失与石漠化相关性研究——以贵州安顺市为例[J].广东农业科学,2014,41(14):149-153 |
|
查看全文
HTML
岩溶区水土流失与石漠化相关性研究——以贵州安顺市为例 |
| Relationship between soil loss and rockydesertification in karst areas--Taking Anshun city, Guizhou province as an example |
| |
| DOI： |
| 中文关键词: 岩溶区 石漠化 水土流失 耦合关系 贵州安顺 |
| 英文关键词: karst region rocky desertification soil loss coupling relationship Anshun city of Guizhou |
| 基金项目:贵州省科技计划项目渊黔科合SY字[2013]3160号；国家“十二五”重大科技支撑计划项目（2011BAC09B01） |
|
| 摘要点击次数: 1519 |
| 全文下载次数: 584 |
| 中文摘要: |
| 以典型岩溶区贵州安顺市为研究对象，以ASTER影像数据为数据源，参照叶岩溶地区水土流失综合治理技术标准曳中水土流失和石漠化等级划分标准，研究水土流失与石漠化的相关性。结果发现：安顺市水土流失与石漠化之间存在较强的相关性。非水土流失区及水土流失等级较低的区域石漠化发生率和石漠化严重程度明显高于水土流失区及高等级水土流失区。非岩溶区水土流失发生率大于岩溶区16.9个百分点，非石漠化区与石漠化区的水土流失发生率分别为39.4%和36.8%，低等级石漠化区水土流失发生率大于高等级水土流失区27.4个百分点，安顺市非岩溶区、非石漠化区及石漠化等级较弱的区域水土流失发生率更高，等级也更强。 |
| 英文摘要: |
| This paper took typical karst areas Anshun city of Guizhou as an example, using ASTER remote sensingimage as the data source, and studied on the coupling relationship between soil loss and rocky desertification according tothe classification standard of “techniques standard for comprehensive control of soil erosion and water loss in karst region”.The results showed that, there was strong coupling relation between soil loss and rocky desertification in Anshun city, theoccurrence rate and degree of rocky desertification in non-soil loss areas and lower grade soil loss areas were higher than
those of soil loss areas and high grade soil loss areas. The occurrence rate of soil loss in non-karst areas was 16.9% higherthan that of karst areas, the occurrence rates of soil loss were 39.4% in non -rocky desertification and 36.8% indesertification area, and the occurrence rate of soil loss in lower grade rocky desertification areas was 27.4% higher than that of high grade rocky desertification areas. Rocky desertification was more likely to happen in the non-soil loss and lowgrade soil erosion areas, and the occurrence rate of soil loss was higher in non-karst area, non rocky desertification areaand the low grade rocky desertification area. |
|
查看/发表评论 下载PDF阅读器 |
