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Coupling index of water consumption and soil fertility correlated with winter wheat production in North China Region
Xu, Erqi1; Wang, Rui2; Zhang, Hongqi1; Yu, Zhuxiao1,3
2019-07-01
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume102Pages:154-165
Corresponding AuthorXu, Erqi(xueq@igsnrr.ac.cn) ; Wang, Rui(wangr@igsnrr.ac.cn)
AbstractCrop 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.
KeywordWinter wheat Evapotranspiration Soil fertility Coupling degree North China Region
DOI10.1016/j.ecolind.2019.02.045
WOS KeywordHUAI-HAI PLAIN ; USE EFFICIENCY ; ENERGY-BALANCE ; CROP YIELD ; FOURIER-ANALYSIS ; IRRIGATED CROPS ; CLIMATE-CHANGE ; LAND ; MANAGEMENT ; EVAPOTRANSPIRATION
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA19040305] ; National Natural Science Foundations of China[41601095]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundations of China
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
WOS IDWOS:000470964500015
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/59080
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXu, Erqi; Wang, Rui
Affiliation1.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
Recommended Citation
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.
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