NDLI: Factors controlling regional grain yield in China over the last 20 years

Content Provider	Springer Nature Link
Author	Wang, Xiaobin Cai, Dianxiong Grant, Cynthia Hoogmoed, Willem B. Oenema, Oene
Copyright Year	2015
Abstract	Food production is highly dependent on regional yields of crops. Regional differences in grain yields could be due to fertilizer management and climate variability. Here, we analyze trends of grain yields in North China, Northeast China, East China, and Central and Southwest China from 1992 to 2012, using the Chinese statistical yearbooks. We estimate the major factors influencing yield by regression analysis. Results show that fertilizer indices were 40 % for Northeast China, 36 % for East China, 9 % for North China, and 6.8 % for Central and Southwest China. Soil indices were 67 % for Northeast China, 14 % for East China, 90 % for North China, and 6 % for Central and Southwest China. The indices of annual mean temperature were positive for Central and Southwest China (72 %) and East China (39 %), but negative for Northeast China (−15 %) and North China (−16 %). Soil factors explained 80 % of yield variation in North China. Annual mean temperature explained 80 % of yield variation in Central and Southwest China.
Starting Page	1127
Ending Page	1138
Page Count	12
File Format	PDF
ISSN	17740746
Journal	Agronomy for Sustainable Development
Volume Number	35
Issue Number	3
e-ISSN	17730155
Language	English
Publisher	Springer Paris
Publisher Date	2015-04-28
Publisher Institution	Institut National de la Recherche Agronomique (INRA)
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	China Cropland Grain yield Chemical fertilizer Rainfall Temperature Agriculture Soil Science & Conservation Sustainable Development
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Agronomy and Crop Science

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