| Response of winter wheat to climate warming in Tianshui |
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| DOI：10.7606/j.issn.1000-7601.2012.01.43 |
| Key Words: climatic warming winter wheat response Tianshui |
| Author Name | Affiliation | | GAO Qiang | Institute of Agricultural Sciences of Tianshui, Tianshui, Gansu 741000, China | | ZHAO Guoliang | Institute of Agricultural Sciences of Tianshui, Tianshui, Gansu 741000, China | | YAO Xiaoying | Tianshui Meteorological Bureau, Tianshui, Gansu 741000,
China | | WEN Hongchang | Institute of Agricultural Sciences of Tianshui, Tianshui, Gansu 741000, China | | WANG Juan | Institute of Agricultural Sciences of Tianshui, Tianshui, Gansu 741000, China | | QIANG Yuzhu | Tianshui Meteorological Bureau, Tianshui, Gansu 741000,
China |
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| Abstract: |
| Through the analysis of winter wheat growth period in Tianshui, correlation between yield and temperature and its variation trend, regression simulation equations were established to reveal winter wheat respons
e to climate warming, for providing a theoretical basis for planting structure adjustment and food security.The results show that since 1980, the response winter of wheat to climate warming is mainly showed as the shortening of the stages of seedling, shooting, heading and maturity, and the postponing of reviving stage; Temperature increase elongated the period of seedling～reviving and shooting～heading, and shortened that of reviving～shooting and heading～maturity; With rising of average temperature and ground temperature, the whole growth period shortened by 6.7 d/10a; The duration of whole growth period of wheat was negatively correlated with the average temperature in 5 cm, 10 cm, 15 cm and 20 cm soil layers; The wheat yield showed a changing trend of dropping first and rising then. The suitable sowing date of wheat in Tianshui is around October 1. |
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