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近20年气候变暖对东北农业生产水热条件影响的研究
IMPACTS OF CLIMATE WARMING ON THERMAL AND MOISTURE CONDITIONS IN NORTHEAST CHINA IN RECENT 20 YEARS
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摘要: 针对东北气候变化影响研究中对增温正效应关注较多, 而对水热匹配等综合影响研究不够的情况, 利用东北地区1961~2000年56个气象站的气象资料, 对近20年东北气候变暖的特点, 温度升高的同时大气干湿程度及水热匹配状况的变化等相关现象进行了较详细的分析。提出东北气候变暖主要表现于冬季, 20世纪90年代变暖明显, 南部大于北部; 夏季增温幅度有限, 不很稳定, 仍时有温度偏低发生, 并同时出现高温日数增多等极端异常气候事件; 最低温度升高幅度大于最高温度的升高幅度, 导致温度日较差变小, 冬季更加明显; 大气水分盈亏状况和水热状况在10年时间尺度上没有明显的变化, 但20世纪90年代中后期出现暖干化趋势, 并由春季转至夏季, 西部和南部比较明显, 对农作物不利等结论。为克服盲目性, 客观评估东北气候变化及其影响, 正确进行农业布局和种植结构调整提供一定的科学依据。Abstract: The characteristics of climate warming, instability and extreme climate events as well as changes in atmospheric moisture and the corresponding thermal and moisture conditions in Northeast China in recent 20 years are analyzed based on data in 1961-2001 in 56 meteorological stations.The results show :(1) The temperature increment amplitude in winter is significant; the 1990's climate warming is stronger than the 1980's; and the increment in the southern part is larger than that in the northern part.(2) The temperature increment in summer is limited; the temperature variance is unstable, and extreme climate events such as days of high temperature occur frequently.(3) The increment in minimum temperature is much larger than that in maximum temperature, which results in the reduction of temperature diurnal range; the change is more obvious in winter.(4) There is no significant change in atmospheric moisture deficit and the corresponding thermal and moisture conditions at 10-year scale; however, there are evidences of warming and drying in recent 5 years and the warming and drying periods occur frequently in summer as well as in the southern and western parts.Warming and drying in summer is unfavorable to crops.
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[1] 陈隆勋, 邵永宁, 张清芬, 等.近四十年我国气候变化的初步分析.应用气象学报, 1991, 2(2):164-174. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=19910215&flag=1 [2] 屠其璞, 邓自旺, 周晓兰.中国气温异常的区域特征研究.气象学报, 2000, 58(3):289-296. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB200003003.htm [3] 马树庆, 安刚, 王琪, 等.东北玉米带热量资源的变化规律研究.资源科学, 2000, 22(5):41-45. http://www.cnki.com.cn/Article/CJFDTOTAL-ZRZY200005008.htm [4] 毛飞, 高素华, 王春乙.东北地区热量资源和低温冷害分布规律的研究.气象学报, 2000, 58(增刊):871-880. http://cdmd.cnki.com.cn/Article/CDMD-82101-1013357327.htm [5] 刘玉瑛, 马树庆, 袭祝香.吉林省80年代以来热量资源的地理分布及作物品种布局.见:农作物低温冷害综合防御技术研究.北京:气象出版社, 1999.90-95. [6] 王春乙, 娄秀荣, 庄立伟, 等.气候变暖对东北地区作物种植的影响.气象科技, 2001, 29(增刊):11-13. http://www.cnki.com.cn/Article/CJFDTOTAL-ZRZY200501021.htm [7] 毛恒青, 万晖.华北东北地区积温的变化.中国农业气象, 2000, 21(3):1-5. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGNY200003000.htm [8] Allen R G, Pereira L S, Dirk Raes, et al.Crop evapotranspiration guidelines for computing crop water requirements.FAO Irrigation and Drainage Paper 56, Rome, 1998. [9] 张宝.中国气候区划 (初稿).北京:科学出版社, 1957. [10] McCarthy J J, Canziani O F, Leary N A, et al.(eds.) Climate Change 2001 :Impacts, Adaptation, and Vulnerability, Contribution of Working Group II to the Third Assessment Report of the Intergovernmental Panel on ClimateChange.Cambridge University Press, 2001, 3-8. [11] 翟盘茂, 任福民.中国近四十年最高最低温度变化.气象学报, 1997, 55(4):418-429. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB704.003.htm [12] 马柱国, 魏和林, 符淙斌.中国东部区域土壤湿度的变化及其与气候变率的关系.气象学报, 2000, 58(3):279~286. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB200003002.htm [13] 娄秀荣, 何延波, 杨霏云.2000年东北地区干旱对粮食产量的影响分析.气象科技, 2001, 29(增刊):54-58. -
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