| Impacts of climate change on planting proportion of cotton in Shihezi area in the recent 50 years |
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| DOI：10.7606/j.issn.1000-7601.2011.06.44 |
| Key Words: cotton planting proportion climate change afflicted proportion Shihezi area |
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| Abstract: |
| The meteorological data of Shihezi area during 1959~ 2008 was analyzed . The results showed that the climate turned a favorable trend for cotton production. The research period was divided into two stages， which showed that there was no close relationship between annual average temperature, accumulated temperature≥10℃，ET0 and planting proportion of cotton during 1959~1980， but they had a close relationship during 1981~2008. The overall im-pacts of climate change on the planting proportion of cotton were achieved mainly though the influence of climatic potential
productivity on cotton yield. The variation of the proportion of cotton aflicted had an upward trend during 1959~ 1980, while the absolute value was small; whereas the trend during 1981~2008 was downward, while the absolute value was larye. The impacts of meteorological disasters on planting proportion of cotton were more severe in the second phase than in the first. The time interval of meteorological disasters was significantly shoter during 1981 ~ 2008, which has caused a potential threat to cotton production in the future. |