气候变化领域集成服务门户(CCPortal): Temporal change in the landscape erosion pattern in the Yellow River Basin, China

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DOI	10.1080/13658810701228645
	Temporal change in the landscape erosion pattern in the Yellow River Basin, China
	Siyuan, W.; Jingshi, L.; Cunjian, Y.
发表日期	2007
ISSN	1365-8816
EISSN	1362-3087
起始页码	1077
结束页码	1092
卷号	21 期号:10
英文摘要	Using Landsat TM data from 1995 and 2000, changes in the landscape erosion pattern of the Yellow River Basin, China were analysed. The aim was to improve our understanding of soil-erosion change so that sustainable land use could be established. First, a soil-erosion intensity index model was developed to study soil-erosion intensity change in the study area. Over the 5 years, the areas of weak erosion, moderate erosion, severe erosion, and very severe erosion all increased. The area of weak erosion increased dramatically by 7.94 x 10(5) ha, and areas of slight erosion and acute erosion decreased by 1.93 x 10(6) ha and 4.50 x 10(4) ha, respectively. The results show that while the intensity of soil erosion has gradually been decreasing as a whole, in some regions the soil erosion is becoming more severe. Based on landscape indices, the pattern of changes in soil erosion over the past 5 years was analysed. The changes in landscape pattern of soil erosion resulted from human activities. Analysis showed that human impact increases fragmentation, having three major effects on landscape pattern, reduction in patch area, variations in patch shape, and changes in spatial pattern. In the study area, population growth, farming, governmental policy and forest degradation are the major factors causing soil erosion change over a 5-year period.
关键词	SATELLITE IMAGES LOESS PLATEAU GIS POLICY SOIL
英文关键词	soil erosion; landscape pattern; remote sensing and geographical; information system; Yellow River Basin
语种	英语
WOS研究方向	Computer Science ; Geography ; Physical Geography ; Information Science & Library Science
WOS类目	Computer Science, Information Systems ; Geography ; Geography, Physical ; Information Science & Library Science
WOS记录号	WOS:000250840000002
来源期刊	INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257470
推荐引用方式 GB/T 7714	Siyuan, W.,Jingshi, L.,Cunjian, Y.. Temporal change in the landscape erosion pattern in the Yellow River Basin, China[J]. 中国科学院青藏高原研究所,2007,21(10).
APA	Siyuan, W.,Jingshi, L.,&Cunjian, Y..(2007).Temporal change in the landscape erosion pattern in the Yellow River Basin, China.INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE,21(10).
MLA	Siyuan, W.,et al."Temporal change in the landscape erosion pattern in the Yellow River Basin, China".INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE 21.10(2007).