干旱区生态环境知识资源中心(Arid): 若尔盖高原土地沙化及其成因定量分析

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	若尔盖高原土地沙化及其成因定量分析
其他题名	Dynamic changes of land desertification in Zoige Plateau
	费怡; 王继燕; 王泽根
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2019
卷号	33 期号:8 页码:146-152
中文摘要	若尔盖高原是世界上最大的高原泥炭湿地之一。受自然条件、人类活动等影响,该区域出现了湿地草地退化、土地沙化的现象。为全面掌握该区域土地沙化状况,文中基于Landsat TM影像分析了1995-2016年若尔盖高原沙地时空变化,并借助地理探测器方法定量分析土地沙化的成因。结果表明:近二十年间,该区域沙地呈增长趋势。2006年以前沙地增长较快,主要分布在若尔盖县西北部和玛曲县东南部,降水和放牧强度是该时期土地沙化关键驱动因子; 2006-2016年间,降水量增加、放牧强度减弱,沙地增长速度有所下降; 1995-2016年间,任意两驱动因子交互作用大多表现为非线性增强,即各因子共同作用增强了沙化程度。
英文摘要	The Zoige Plateau is one of the largest plateau peat wetlands in the world. Affected by natural conditions, human activities and so on,the wetland degradation,grassland degradation and land desertification occurred in the region. In order to fully understand the situation of land desertification in this area,we analyzed the spatial and temporal changes of sandy land in the Zoige Plateau from 1995 to 2016 based on Landsat TM image, and quantitatively analyzed the causes of land desertification by means of geo-detector method. The results show that in the past two decades,the sandy area in the region has shown an increasing trend. Before 2006,the sandy land increased rapidly,mainly in the northwest of Zoige County and southeast of Maqu County. Precipitation and grazing intensity were the key driving factors for land desertification in this period. During 2006-2016,precipitation increased,grazing intensity weakened,which made the growth rate of sandy land declined. during 1995 and 2016,the interaction of any two driving factors mostly showed nonlinear enhancement,that is,the interaction of various factors enhanced the degree of desertification.
中文关键词	若尔盖高原 ; 土地沙化 ; 时空分布 ; 沙化成因
英文关键词	Zoige Plateau land desertification temporal-spatial distribution causes of desertification
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6519693
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239209
作者单位	西南石油大学土木工程与建筑学院测绘工程教研室, 成都, 四川 637001, 中国
推荐引用方式 GB/T 7714	费怡,王继燕,王泽根. 若尔盖高原土地沙化及其成因定量分析[J],2019,33(8):146-152.
APA	费怡,王继燕,&王泽根.(2019).若尔盖高原土地沙化及其成因定量分析.干旱区资源与环境,33(8),146-152.
MLA	费怡,et al."若尔盖高原土地沙化及其成因定量分析".干旱区资源与环境 33.8(2019):146-152.