| 气候变化背景下房县干旱的响应 |
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| 引用本文： | 冯明,张谦,胡英,陈璇.气候变化背景下房县干旱的响应[J].中国农业气象,2011(Z1). |
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| 作者姓名： | 冯明 张谦 胡英 陈璇 |
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| 作者单位： | 武汉区域气候中心;湖北省防雷中心;房县气象局; |
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| 基金项目： | 汉江中下游干旱监测预警系统建设(武汉区域气候中心自立项目) |
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| 摘 要： | 在气候变化背景下,利用房县50a(1961-2010年)的降水和气温资料,计算干旱指数,并用其来探讨房县干旱的变化情况及其对农业生产的影响。结果表明:作物生长季和冬前生长季的干旱指数变化呈上升趋势,且这种变化趋势的主要原因是温度变化呈上升趋势,降水变化呈减少趋势。夏季的干旱指数变化呈减小趋势,且这种变化趋势的主要原因是温度变化呈下降趋势,降水变化呈增加趋势。干旱及其变化对房县的粮食作物总产、小麦和水稻产量有一定的影响。研究结果可为农业应对气候变化的不利影响提供科学依据。
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| 关 键 词： | 气候变化 干旱指数 变化趋势 |
Response of Droughts in the Context of Climate Change in Fangxian County |
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| FENG Ming,ZHANG Qian,HU Ying,CHEN Xuan.Response of Droughts in the Context of Climate Change in Fangxian County[J].Chinese Journal of Agrometeorology,2011(Z1). |
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| Authors: | FENG Ming ZHANG Qian HU Ying CHEN Xuan |
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| Institution: | FENG Ming1,ZHANG Qian2,HU Ying3,CHEN Xuan1 (1.Wuhan Regional Climate Center,Wuhan 430074,China,2.Hubei Lightning Protection Center,3.Fangxian Meteorological Bureau,Fangxian 440000) |
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| Abstract: | In the context of climate change,droughts index was calculated by using precipitation and temperature data in Fangxian county in 50 years(1961-2010).The droughts were discussed and the effects on agricultural yields were analyzed through utilizing the index in Fangxian county.The results showed that droughts index change has an increasing trend in crop growth season and growing seasons before winter.The main reason lies in that temperature change showed increasing trend and precipitation showed decreasing t... |
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| Keywords: | Climate change Droughts index Variation tendency |
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