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Climate-driven Yield Variability for Winter Wheat in Henan Province, North China and its Relation to Large-scale Atmospheric Circulation Indices
International Journal of Plant Production ( IF 2.1 ) Pub Date : 2020-10-10 , DOI: 10.1007/s42106-020-00119-z Jiadong Chen , Hongwei Tian , Jin Huang , Jinchi Zhang , Fangmin Zhang
International Journal of Plant Production ( IF 2.1 ) Pub Date : 2020-10-10 , DOI: 10.1007/s42106-020-00119-z Jiadong Chen , Hongwei Tian , Jin Huang , Jinchi Zhang , Fangmin Zhang
The responses of wheat yield to large-scale atmospheric circulation indices (LACI) were explored in Henan province, north China. With using the annual series of climate-driven yield index (CDYI) extracted from winter wheat yield collected in 17 cites and the monthly series of 15 types of LACI during 1988–2017, the main findings were as follows: (1) this province could be divided into four sub-regions (central-east, west, north, and south Henan) with different CDYI variations; (2) the CDYI in central-east, west, south Henan was dominated by a 3-year oscillation, while the CDYI in north Henan presented a notable 7.5-year oscillation; (3) among the four sub-regions, central-east Henan had the most significant CDYI-LACI relationship, and the higher Nino 1 + 2 in December were a key yield reduction signal; (4) during 2008–2017, the stronger increase of Nino1 + 2_in December had caused the yield decrease in central Henan by 6.58%. In summary, linking wheat yield to LACI anomalies should be instrumental in alleviating the adverse effects of climate change on wheat production.
更新日期：2020-10-10
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