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中国农学通报 ›› 2014, Vol. 30 ›› Issue (14): 294-299.doi: 10.11924/j.issn.1000-6850.2013-2628

所属专题: 现代农业发展与乡村振兴 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

大连农业气候环境演变趋势及其影响

王丽娜 祝青林 徐梅   

  • 收稿日期:2013-10-09 修回日期:2013-11-08 出版日期:2014-05-15 发布日期:2014-05-15
  • 基金资助:
    大连市政府项目 “基于 GIS的大连气候资源空间化研究” (2006E21SF083); 辽宁省气象局项目 “大连玉米农气服务指标研究” (201202-2)。

The Trends of Agro-climatic Conditions and Its Impact in Dalian

  • Received:2013-10-09 Revised:2013-11-08 Online:2014-05-15 Published:2014-05-15

摘要: 为了研究大连地区近50年农业气候环境的演变趋势及影响,选取7个常规气象观测站1961—2010年作物生长季平均气温、积温、降水量、日照时数、无霜期等影响农业环境的气候因子,分析了大连地区农业气候环境包括热量条件、水分条件、光照条件和无霜期的变化趋势。结果表明:大连地区在过去50年中农业气候环境发生了显著变化,其中气温、≥10℃积温、无霜期呈现显著升高或增加趋势,降水和日照时数呈减少趋势。气温、≥10℃积温、无霜期、日照时数的变化趋势达到显著水平。受其影响,大连地区热量资源增加,樱桃等果树种植北界北移,无霜期的延长将为农户调整种植结构带来更多的选择。

关键词: 影响因素, 影响因素

Abstract: In order to study the change of agro-climate environment and its influence in recent 50 years, average temperature, ≥10℃ accumulated temperature, rainfalls, sunshine duration, and frost-free period during growing season of 7 meteorological stations in Dalian between 1961 and 2010 were chosen as indexes to analyze the change in agro-climatic environment of Dalian. The results showed that: the agro-climatic environment had undergone significant changes in the past 50 years, average temperature, ≥10℃ accumulated temperature and frost-free season remarkably increased from 1961 to 2010, however rainfalls and sunshine duration was on the decline trends. The trends of average temperatures, ≥10℃ accumulated temperature, frost-free period and sunshine duration were significant. As a result, thermal resources in Dalian increased significantly in the past 50 years, and the northern boundary of planting moved north, such as cherry, and the farmers would have more chances to adjust planting structures.