干旱区生态环境知识资源中心(Arid): 基于坡度等级的喀斯特山区石漠化与水土流失相关性研究以贵州省盘县为例

Arid

	基于坡度等级的喀斯特山区石漠化与水土流失相关性研究以贵州省盘县为例
其他题名	Based on the Slope Grade of Rocky Desertification and Water and Soil Loss Correlation Study in Karst Mountain Area:A Case in Panxian County,Guizhou
	张珊珊 1; 周忠发 1; 孙小涛 1; 冯倩 1; 陈全 2
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2017
卷号	31 期号:2 页码:79-86
中文摘要	为了定量分析不同坡度等级下石漠化与水土流失之间的相关性,为县域生态环境治理与修复提供科学理论依据,以贵州省盘县为研究区,在遥感与地理信息系统技术支持下,以ALOS遥感影像、岩性及1∶ 50 000地形图等为基础数据源,采用遥感解译方法、表面分析及地图代数原理,提取出石漠化与水土流失的各指标因子。通过ArcGIS空间分析及相关性分析模型,从不同坡度等级下分析盘县石漠化与水土流失的相关性。结果表明:盘县石漠化面积为1 008.45km~2,占总面积的24.9%,已发生石漠化等级以轻度、中度和强度为主,分别占盘县石漠化面积的45.47%,29.67%,20.29%;水土流失面积为521.05 km~2,占总面积的12.85%,已发生水土流失等级以轻度和中度为主,分别占盘县水土流失面积的67.75%和17.36%。石漠化与水土流失发生区坡度以5°~35°为主,分别占石漠化与水土流失面积的85.08%与82.45%。当坡度<8°时,石漠化与水土流失等级、水土流失与石漠化等级存在负相关关系。当坡度为8°~35°时,已石漠化与已水土流失面积均呈现出先减小后增加再减小的趋势。当坡度>35°时,石漠化与水土流失等级在强烈侵蚀等级以下表现为负相关,超过强烈侵蚀为正相关;而水土流失与石漠化等级在轻度石漠化等级以下表现为正相关,超过轻度石漠化为负相关。
英文摘要	The aims of this study were to analyze the correlation between rocky desertification at different slopes and water and soil loss quantitatively,and provide the scientific theoretical basis for the ecological environment management and restoration in the county area.Taking Panxian County of Guizhou Province as the research area,with the support of RS and GIS technology,based on ALOS remote sensing images, lithology and 1∶50 000 topographic maps,using Remote sensing interpretation method,Surface analysis and Map Algebra principle,the index factors of rocky desertification and water and soil loss were extracted. Through ArcGIS spatial analysis and correlation analysis model,analysis of the correlation between rocky desertification at different slopes and water and soil loss in Panxian County.The results showed that:Panxian County had a rocky desertification area of 1 008.45km~2,accounting for 24.9% of the total area,the degree of rocky desertification was mainly mild,moderate and strong,accounting for 45.47%,29.67% and 20.29% of the total area of rocky desertification,respectively.Water and soil loss area was 521.05km~2,accounting for 12.85% of the total area,the degree of water and soil loss was maily mild and moderate,and 67.75% and 17.36% of the area of water and soil loss,respectively.Rocky desertification and water and soil loss occurred in the place where the slopes were between 5 and 35 degrees,accounting for 85.08% and 82.45% of the area of rocky desertification and water and soil loss,respectively.When the slopes were less than 8 degrees,there was a negative correlation between rocky desertification and grade of water and soil loss,and between water and soil loss and grade of rocky desertification.When the slopes were between 8 and 35 degrees,the area of rocky desertification and water and soil loss decreased first,then increased,and later decreased again.When the slopes were greater than 35degrees,rocky desertification and water and soil loss grade were negatively correlated under strong erosion,but the correlation became positive when the erosion went beyond strong erosion.Water and soil loss and rocky desertification grade were positively correlated under mild rocky desertification,but they were negatively correlated when the rocky desertification went beyond mild rocky desertification.
中文关键词	石漠化 ; 水土流失 ; 坡度 ; 相关性分析 ; 盘县
英文关键词	rocky desertification water and soil loss slope correlation analysis Panxian County
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5993207
来源机构	贵州师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236673
作者单位	1.贵州师范大学喀斯特研究院, 贵州省喀斯特山地生态环境国家重点实验室培育基地, 贵阳, 贵州 550001, 中国; 2.贵州师范大学喀斯特研究院, 国家喀斯特石漠化防治工程技术研究中心, 贵阳, 贵州 550001, 中国
推荐引用方式 GB/T 7714	张珊珊,周忠发,孙小涛,等. 基于坡度等级的喀斯特山区石漠化与水土流失相关性研究以贵州省盘县为例[J]. 贵州师范大学,2017,31(2):79-86.
APA	张珊珊,周忠发,孙小涛,冯倩,&陈全.(2017).基于坡度等级的喀斯特山区石漠化与水土流失相关性研究以贵州省盘县为例.水土保持学报,31(2),79-86.
MLA	张珊珊,et al."基于坡度等级的喀斯特山区石漠化与水土流失相关性研究以贵州省盘县为例".水土保持学报 31.2(2017):79-86.