Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region

doi:10.1016/j.ecolind.2019.02.045

	Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region
	Xu, Erqi 1; Wang, Rui 2; Zhang, Hongqi 1; Yu, Zhuxiao 1,3
刊名	ECOLOGICAL INDICATORS
	2019-07-01
卷号	102 页码:154-165
关键词	Winter wheat Evapotranspiration Soil fertility Coupling degree North China Region
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2019.02.045
通讯作者	Xu, Erqi(xueq@igsnrr.ac.cn) ; Wang, Rui(wangr@igsnrr.ac.cn)
英文摘要	Crop production responses to water and soil characteristics is important to understand and manage regional agricultural production. However, the coupling characteristic of these factors was less quantified and it lacks a deep understanding of its effect on the crop production. North China Region (NCR), an important food production region in China but also one of the most water-stressed areas, was selected as the study area. Based on the remote sensing monitoring techniques, region evapotranspiration model, multi-criteria evaluation model, the spatial distribution of winter wheat, actual evapotranspiration (ET), and soil fertility score (SF) was measured in sequence. This study proposed a novel coupling index of water consumption and soil fertility (CWS) to measure the coupling characteristic of ET and SF, and correlated it to the winter wheat yield and area. The results indicated a significant correlation between the CWS and winter wheat production but a non-significant correlation between SF and yield and area. CWS in NCR presented a global pattern of high values in the south but low values in the north, in accordance with that of winter wheat production. Coupling the information of water and soil, the CWS showed a higher correlation to winter wheat yield with the correlation coefficient of 0.588 than solely that of the ET with 0.437. A relative lower correlation of CWS than that of ET implied that ignore of soil fertility but emphasis on the water restrictions would limit the high crop yield and influence the optimal allocation of water and soil resources. Our finding demonstrated the effectiveness of CWS and its higher relation to the winter wheat production in NCR. Information of spatial coupling and mismatching between the winter wheat production and CWS was suggested to be considered as a guide of better spatial optimal allocation of winter wheat.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040305] ; National Natural Science Foundations of China[41601095]
WOS关键词	HUAI-HAI PLAIN ; USE EFFICIENCY ; ENERGY-BALANCE ; CROP YIELD ; FOURIER-ANALYSIS ; IRRIGATED CROPS ; CLIMATE-CHANGE ; LAND ; MANAGEMENT ; EVAPOTRANSPIRATION
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000470964500015
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundations of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59079]
专题	中国科学院地理科学与资源研究所
通讯作者	Xu, Erqi; Wang, Rui
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Resources Use & Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu, Erqi,Wang, Rui,Zhang, Hongqi,et al. Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region[J]. ECOLOGICAL INDICATORS,2019,102:154-165.
APA	Xu, Erqi,Wang, Rui,Zhang, Hongqi,&Yu, Zhuxiao.(2019).Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region.ECOLOGICAL INDICATORS,102,154-165.
MLA	Xu, Erqi,et al."Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region".ECOLOGICAL INDICATORS 102(2019):154-165.