干旱区生态环境知识资源中心(Arid): Mapping and evaluating cultivated land fallow in Southwest China using multisource data

Arid

DOI	10.1016/j.scitotenv.2018.11.172
	Mapping and evaluating cultivated land fallow in Southwest China using multisource data
	Shi, Kaifang 1,2; Yang, Qingyuan 2,3; Li, Yuanqing 2,3; Sun, Xiufeng 4
通讯作者	Yang, Qingyuan
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	654 页码:987-999
英文摘要	Accurately and effectively mapping and evaluating cultivated land fallow has already become an important issue that has received much attention in China. However, systematically analysing regional cultivated land fallow remains inadequate because current studies have mainly focused on quantifying cultivated land fallow using statistical data based on administrative units or a single aspect of cultivated land fallow using high or medium spatial resolution images at the local or regional scales. Against the existing shortcomings, this study first developed an integrated index of cultivated land fallow (ILF) for mapping and evaluating cultivated land fallow in Southwest China using multisource spatial data. The performance of the ILF was validated by comparing its results with Google Earth images and ecological carrying capacity of cultivated land (TEC). And the spatial distribution of cultivated land fallow in Southwest China was evaluated at the regional, provincial and metropolitan scales. The results revealed that the ILF provided a reliable evaluation of cultivated land fallow in Southwest China. Compared to the Google earth images, the pixel with the high ILF value was the cultivated land that was found to prioritize fallow. There was also a significant correlation between ILF and TEC at the prefectural level in Sichuan, with an R-2 value >0.65. In Southwest China, the cultivated land related to highly appropriate fallow (HAF) accounted for 5.73% of the total cultivated land in 2010. The cultivated land related to inappropriate fallow (IF) accounted for 53.26% and 37.36% in Sichuan and Chongqing but only comprised 22.90% and 19.72% in Yunnan and Guizhou, respectively. Special attention needs to be paid to Guiyang and Kunming, where the HAF made up 25.38% and 17.48% of their total cultivated land, respectively. Human activities have been found to already become the most important impact factors for cultivated land fallow in Southwest China. This study is especially valuable for providing a scientific basis for policy-making on viable cultivated land fallow policy in Southwest China. (C) 2018 Elsevier B.V. All rights reserved.
英文关键词	Cultivated land fallow Spatial distribution Multisource data Multiple scale analysis Southwest China
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000458630100090
WOS关键词	KARST ROCKY DESERTIFICATION ; URBAN EXPANSION ; CROPLAND ABANDONMENT ; LIGHT DATA ; DYNAMICS ; PRODUCTIVITY ; PROGRAM ; IMPACT ; RECULTIVATION ; CONSUMPTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218635
作者单位	1.Southwest Univ, Sch Geog Sci, Chongqing Engn Res Ctr Remote Sensing Big Data Ap, 2 Tiansheng Rd, Chongqing 400715, Peoples R China; 2.Southwest Univ, Sch Geog Sci, Minist Nat Resources, Res Base Karst Ecoenvironm Nanchuan Chongqing, 2 Tiansheng Rd, Chongqing 400715, Peoples R China; 3.Southwest Univ, Sch Geog Sci, Chongqing Key Lab Karst Environm, Chongqing 400715, Peoples R China; 4.Southwest Univ, Coll Hort & Landscape Architecture, 2 Tiansheng Rd, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Shi, Kaifang,Yang, Qingyuan,Li, Yuanqing,et al. Mapping and evaluating cultivated land fallow in Southwest China using multisource data[J],2019,654:987-999.
APA	Shi, Kaifang,Yang, Qingyuan,Li, Yuanqing,&Sun, Xiufeng.(2019).Mapping and evaluating cultivated land fallow in Southwest China using multisource data.SCIENCE OF THE TOTAL ENVIRONMENT,654,987-999.
MLA	Shi, Kaifang,et al."Mapping and evaluating cultivated land fallow in Southwest China using multisource data".SCIENCE OF THE TOTAL ENVIRONMENT 654(2019):987-999.