Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010

doi:10.1007/s10113-017-1164-y

	Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010
	Paudel, Basanta 1,2; Zhang, Yili 1,2,3; Li, Shicheng 1,2; Wu, Xue 1,2
刊名	REGIONAL ENVIRONMENTAL CHANGE
	2017-12-01
卷号	17 期号:8 页码:2349-2357
关键词	Agricultural land Reconstruction Spatially explicit Land suitability for cultivation Nepal
ISSN号	1436-3798
DOI	10.1007/s10113-017-1164-y
通讯作者	Zhang, Yili(zhangyl@igsnrr.ac.cn)
英文摘要	Agricultural land cover and changes in its extent are directly related to human activities. The rapidly growing population in Nepal has resulted in an increasing trend of agricultural land expansion, and can be used to determine the long-term status of agricultural land cover via reconstruction. This decadal study considered spatially explicit agricultural area, statistical records, population density, soil types, and climate and topography datasets. We collected available datasets and revised them on the basis of a spatiotemporal reconstruction of agricultural land cover. The different datasets were based on 30 x 30 m grid cells used for agricultural land suitability and allocation models. This historical agricultural land reconstruction revealed an increasing trend in agricultural area from 37.03 to 43.88 (10(3) km(2)), between 1970 and 2010. In this period, the agricultural land expanded and agriculture became more intensified, especially in the southern and middle parts of the country. A slightly decreasing trend was found in areas surrounding big cities. The evaluation of the results of our reconstruction and a comparison with satellite-based data in 2010 confirmed that this study established an effective methodology. The results of the study were in agreement with the FAO, History Database of the Global Environment 3.1 and 3.2, and the range of differences was found closer. These reconstruction datasets were suitable for use in climatic impact assessments of agricultural land change, as well as carbon cycle and climate modeling studies.
资助项目	Natural Science Foundation of China[41371120] ; Chinese Academy of Sciences-The World Academy of Sciences (CAS-TWAS) President's Fellowship Program ; International Partnership Program of the Chinese Academy of Sciences[131C11KYSB20160061]
WOS关键词	ANNUAL NET FLUX ; PAST 300 YEARS ; SOIL-EROSION ; CROPLAND AREA ; MIDDLE HILLS ; REGION ; CARBON ; ATMOSPHERE ; SEDIMENT ; DATABASE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000415136200014
资助机构	Natural Science Foundation of China ; Chinese Academy of Sciences-The World Academy of Sciences (CAS-TWAS) President's Fellowship Program ; International Partnership Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/61148]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yili
作者单位	1.Chinese Acad Sci, IGSNRR, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Paudel, Basanta,Zhang, Yili,Li, Shicheng,et al. Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010[J]. REGIONAL ENVIRONMENTAL CHANGE,2017,17(8):2349-2357.
APA	Paudel, Basanta,Zhang, Yili,Li, Shicheng,&Wu, Xue.(2017).Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010.REGIONAL ENVIRONMENTAL CHANGE,17(8),2349-2357.
MLA	Paudel, Basanta,et al."Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010".REGIONAL ENVIRONMENTAL CHANGE 17.8(2017):2349-2357.