Divergent changes in cropping patterns and their effects on grain production under different agro-ecosystems over high latitudes in China

doi:10.1016/j.scitotenv.2018.12.345

	Divergent changes in cropping patterns and their effects on grain production under different agro-ecosystems over high latitudes in China
	Pan, Tao 1,2,3,4,5,6,7; Du, Guoming 2; Dong, Jinwei 3; Kuang, Wenhui 3; De Maeyer, Philippe 4,5,6; Kurban, Alishir 1,5,6
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-04-01
卷号	659 页码:314-325
关键词	Different cropping patterns Rice paddy expansion State and private farms Grain production High latitudes in China
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.12.345
通讯作者	Du, Guoming(nmgdgm@126.com)
英文摘要	Drastic rice paddy expansion and rapid upland crop loss have occurred over high latitudes in China, which would affect national food security. Different agro-ecosystems (i.e., state farms guided by the central government for agriculture and private farms guided by individual farmers for agriculture) could lead to different agricultural land use patterns; but this topic has not been investigated, which has limited our understanding of the dynamics of cropping patterns (i.e., rice paddies and upland crops) under different agro-ecosystems and their effect on total grain production. Thus, this study examined these issues over high latitudes in China. The results showed that: the developed methodology for determining cropping patterns presented high accuracy (over 90%). Based on the cropping pattern data, first, a satellite evidence of substantial increase in rice paddies with the loss of upland crops was found, and the large-scale conversion from upland crops to rice paddies has become the principal land use changes during the period of 2000-2015. Second, the new phenomenon was observed with rice paddies in state farms expanding at faster rates (at proportions of 12.98%-70.11%) than those in private farms (4.86%-30.48%). Third, the conversion of upland crops into rice paddies contributed 10.69% of the net increase in grain, which played a significant role in ensuring food security. The study provided new evidence of different changes in cropping patterns under different agro-ecosystems, thereby affecting rice cropping pattern and total grain production. This information is important for understanding and guiding the response to food sustainability and environmental issues. (c) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41571167] ; Heilongjiang Province post-doctoral research start-up funding project[LBH-Q17018] ; Academic Backbone project of Northeast Agricultural University[16XG07] ; Strategic Priority Research Program[XDA19040301] ; Key Research Program of Frontier Sciences, the Chinese Academy of Sciences[QYZDB-SSW-DQC005]
WOS关键词	LAND-USE CHANGE ; FOOD SECURITY ; TIME-SERIES ; WATER ; CROPLAND ; PADDY ; RESOURCES ; AREAS ; INDEX
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000457293700032
资助机构	National Natural Science Foundation of China ; Heilongjiang Province post-doctoral research start-up funding project ; Academic Backbone project of Northeast Agricultural University ; Strategic Priority Research Program ; Key Research Program of Frontier Sciences, the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/49879]
专题	中国科学院地理科学与资源研究所
通讯作者	Du, Guoming
作者单位	1.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 2.Northeast Agr Univ, Coll Resources & Environm Sci, Harbin 150030, Heilongjiang, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 4.Univ Ghent, Dept Geog, B-9000 Ghent, Belgium 5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Sino Belgian Joint Lab Geoinformat, Urumqi 830011, Peoples R China 6.Univ Ghent, Sino Belgian Joint Lab Geoinformat, B-9000 Ghent, Belgium 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Pan, Tao,Du, Guoming,Dong, Jinwei,et al. Divergent changes in cropping patterns and their effects on grain production under different agro-ecosystems over high latitudes in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,659:314-325.
APA	Pan, Tao,Du, Guoming,Dong, Jinwei,Kuang, Wenhui,De Maeyer, Philippe,&Kurban, Alishir.(2019).Divergent changes in cropping patterns and their effects on grain production under different agro-ecosystems over high latitudes in China.SCIENCE OF THE TOTAL ENVIRONMENT,659,314-325.
MLA	Pan, Tao,et al."Divergent changes in cropping patterns and their effects on grain production under different agro-ecosystems over high latitudes in China".SCIENCE OF THE TOTAL ENVIRONMENT 659(2019):314-325.