华北平原五省冬小麦产量和氮素管理的时空变异
任思洋,张青松,李婷玉,张福锁(
)
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Spatiotemporal Variation of Winter Wheat Yield and Nitrogen Management in Five Provinces of North China Plain
SiYang REN,QingSong ZHANG,TingYu LI,FuSuo ZHANG()
)
图3. 2005-2014年华北地区冬小麦分县产量及产量差的空间变异
Fig. 3. Spatial variations of wheat yield and yield gap in North China Plain from 2005 to 2014
