| 辽宁建昌作物生长季降水变化对农业干旱程度的影响 |
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| 引用本文： | 马永忠,黄英华,李明春,杜丙义.辽宁建昌作物生长季降水变化对农业干旱程度的影响[J].安徽农业科学,2010,38(29):16327-16328,16331. |
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| 作者姓名： | 马永忠 黄英华 李明春 杜丙义 |
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| 作者单位： | 辽宁省建昌县气象局,辽宁建昌,125300 |
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| 摘 要： | 目的]分析降水变化掌握干旱程度为农业生产提供气候依据。方法]采用数理统计方法,进行对比、趋势分析降水变化对干旱程度的影响。结果]建昌地区作物生长季降水量近50年减少108mm,并以夏季减少为主体。春秋两季干旱最严重频率为80%。与全国第2次农业资源普查时相比,作物生长季干旱频率增加26.6%,播种出苗阶段干旱频率减少13.6%,作物旺盛生长阶段干旱频率增加7.7%,成熟收获阶段干旱频率增加19.2%。结论]目前建昌地区的气候朝着偏旱至半湿润半干旱方向发展。
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| 关 键 词： | 作物生长季 降水 农业 干旱 建昌 |
Impact of Precipitation on Agricultural Drought during the Crop Growing season in Jianchang of Liaoning Province |
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| MA Yong-zhong et al.Impact of Precipitation on Agricultural Drought during the Crop Growing season in Jianchang of Liaoning Province[J].Journal of Anhui Agricultural Sciences,2010,38(29):16327-16328,16331. |
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| Authors: | MA Yong-zhong |
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| Institution: | MA Yong-zhong et al(Bureau of Meteorology in Jianchang County of Liaoning province,Jianchang,Liaoning 125300) |
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| Abstract: | Objective]The aim is to provide climate basis for agricultural production through analyzing precipitation variation and mastering drought degree.Method] By using mathematical statistical methods,comparison and trend analysis,the impact of precipitation change on drought is analyzed.Result]The precipitation during the crop growing season in the late 50 years decreases by 108 mm,especially in summer.The frequency of the serious drought in spring and autumn is 80%.Compared with the second national survey of... |
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| Keywords: | Crop growing season Precipitation Agriculture Drought Jianchang |
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