| The potential response of wheat yield to regional climate change and meteorological factors in the arid plain north of the Weihe River |
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| DOI：10.7606/j.issn.1000-7601.2010.01.41 |
| Key Words: the arid plain north of the Weihe River wheat yield meteorological factors path analysis |
| Author Name | Affiliation | | WANG Baoliang | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China
Graduate School of Nanjing Forestry University, Nanjing, Jiangsu 210037, China | | PAN Xianzhang | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China | | LIANG Yin | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China | | LIU Tong | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China | | YANG Xuan | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China | | MU Huan | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China
Graduate School of Nanjing Forestry University, Nanjing, Jiangsu 210037, China | | SU Chunli | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China | | GUAN Qingwei | Graduate School of Nanjing Forestry University, Nanjing, Jiangsu 210037, China |
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| Abstract: |
| The path analysis was made between meteorological factors and yield of wheat in Changwu County in the arid plain north of the Weihe River. The results showed that: the major meteorological factors which effected yield of wheat were precipitation and surface temperature. Precipitation had great effect during sowing to seedling emergence stage, while surface temperature had even more remarkable effect during the stages of tillering to overwintering, turning green to jointing, and filling to milk. During past 50 years in this area, air temperature had a rising trend significantly, basically identical with global climate change. With great fluctuation, the annual precipitation had a decreasing tendency in general, especially during sowing to emergence period. The ground temperature had an increasing trend during turning green to jointing period, with a greater range after the year of 2000. So it was good to improve the yield of wheat by climate warming, but with a fluctuation of precipitation, it was hard to make sure the yield under the regional climate change. |
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