中国农业气象

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宁夏气候变化及其对农业生产的影响

张智;林莉;梁培;   

  1. 宁夏气象信息中心;宁夏气象防灾减灾重点试验室;
  • 出版日期:2008-08-10 发布日期:2008-08-10
  • 基金资助:
    国家科技部“宁夏气候对全球气候变化的响应及其机制(2004DIB3J121)”;; 中国气象局“气候变化对宁夏主要农作物及适应性影响的研究(CCSF2007-27)”;; 中英气候变化双边合作研究项目“气候变化对宁夏农业影响的模拟研究(2001-BA611B-04-06-01)”

Climate Change and its Impacts on Agricultural Production in Ningxia

ZHANG Zhi1,2,LIN Li1,LIANG Pei1(1.Ningxia Meteorological Information Center,Ningxia Meteorological Bureau,Yinchuan 750002,China;2.Ningxia Key Laboratory of Meteorological Disasters Preventing and Reduction,Yinchuan 750002,China)   

  • Online:2008-08-10 Published:2008-08-10

摘要: 选取宁夏20个地面气象站1961-2005年逐日平均气温、逐日最低气温、逐日降水量资料,分析年平均气温、日平均气温稳定通过0℃积温、无霜期、生长期降水量等的变化规律。结果表明:20世纪90年代以后宁夏各地明显升温,20世纪90年代和2001-2005年年平均气温平均升高了0.5℃和0.9℃,≥0℃积温平均增多了94.9℃.d和225.2℃.d;90年代以后无霜期平均延长了6.8d,作物生长期降水量呈减少的趋势,平均减少了12.5mm;气温升高也使得冬小麦种植北界明显向北、海拔上界明显向高处扩展。

关键词: 宁夏, 气候变化, 农业生产

Abstract: The data of the daily temperature,daily minimum temperature and daily precipitation of 20 meteorological stations in Ningxia between 1961 and 2005 was used to analyze the changes of the average annual temperature,the accumulative temperature above 0℃,the frost-free period and the precipitation during growing periods of crops.The results showed that the average annual temperature had remarkably increased since 1990's.It increased by 0.5℃ and 0.9℃ in 1990's and in 2001-2005 respectively.The accumulative temperature above 0℃ increased by 94.9℃ and 225.2℃ in 1990's and in 2001-2005 respectively.The frost-free period extended 6.8 days,while the precipitation during growing periods of crops decreased 12.5mm.The increased temperature was beneficial to winter wheat northward and upward higher altitude region beyond their original planting boundary.

Key words: Ningxia, Ningxia, Climate Change, Agricultural production