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1961—2007年我国霜冻变化特征
Characteristics of Frost Changes from 1961 to 2007 over China
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摘要: 利用1961—2007年我国577个测站的均一化逐日最低气温资料, 根据通用的霜冻气候统计指标计算历年初、终霜冻日期及无霜冻期。结果显示：初、终霜冻日期及无霜冻期标准差和极差北方地区较南方地区偏小; 全国大部地区终霜冻日期的年际间差异比初霜冻日期大, 无霜冻期的年际变化又比终霜冻日期大; 从线性变化趋势看, 近47年, 全国平均终霜冻日期提早2.0d/10a, 初霜冻日期推迟1.3d/10a, 无霜冻期延长3.4d/10a;终霜冻日期提早幅度大于初霜冻日期推迟幅度; 从年代际变化来看, 全国平均终霜冻日期自20世纪80年代起明显提早, 初霜冻日期20世纪90年代开始明显推迟, 全国平均终霜冻日期提早时间明显比初霜冻日期推迟时间长; 同终霜冻期年代际变化一样, 全国平均无霜冻期自20世纪80年代起明显延长。Abstract: Based on the daily minimum temperature data at 577 meteorological stations over China from 1961 to 2007, the first frost date, the last frost date and the frost-free days are calculated by using the common climatic index on frost day. The results show that the standard deviation of the first frost date, the last frost date and the frost-free days is less in the north than in the south of China, which indicates that they are more stabile in the north than in the south. The inter-annual variation of the last frost date is larger than those of the first frost date, and the inter-annual variation of the frost-free days is larger than those of the last frostdate in most areas of China. It can be seen from the linear change trend that the last frost date is 2.0 d/10a ahead of time, the first frost date has 1.3 d/10a delay and the frost-free days prolong 3.4 d/10a over the past 47 years. From the climate trend it can be found that the range of the ahead last frost date is more than that of the delayed first frost date, which implies that the main cause of the prolonged frost-flee days is the ahead of last frost day. The first-frost date obviously delays since 1990s. The last frost date is obviously ahead of time and the frost-free days obviously prolong since 1980s. The ahead of last frost date is earlier than the first frost date delay in China from the inter-annual variation.
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图 1 1961-2007年我国初 (a)、终 (b) 霜冻日期及无霜冻期 (c) 标准差分布 (单位：d)
Fig. 1 The standard deviations distribution of the first frost date (a), the last frost date (b) and the frost_free days (c) in China during 1961-2007(unit:d)
图 2 1961-2007年我国平均初 (a)、终 (b) 霜冻日序及无霜冻期 (c) 的历年变化
Fig. 2 The inter-annual variation on day series of the first frost date (a), the last frost date (b) and the frost_free days (c) in China during 1961-2007
图 3 1961-2007年我国初 (a)、终 (b) 霜冻及无霜冻期 (c) 的线性变化趋势分布（单位：d/10a）
Fig. 3 Linear trends of first frost date (a), the last frost (b) and the frost-free days (c) in China during 1961-2007(unit:d/10a)
表 1 不同年代全国平均初、终霜冻日序及无霜冻期
Table 1 Day series of the first frost date, the last frost date and the frost-free days in different decades in China
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[1] 沈能展, 梁荣欣, 赵秀兰, 等.哈尔滨地区初, 终霜冻日分布特点的研究.东北农业大学学报, 2000, 31(2):129-136 http://www.cnki.com.cn/Article/CJFDTOTAL-DBDN200002005.htm [2] 林良勋, 薛登智, 梁健, 等.近二十年广东的霜冻气候及其变化特征.广东气象, 2000, 4:7-9 http://www.cnki.com.cn/Article/CJFDTOTAL-GDCX200004002.htm [3] 吴兴国, 高安宁, 陈业国.广西异常霜冻天气过程特征指数研究.广西科学, 2003, 10(1):72-74;80 http://www.cnki.com.cn/Article/CJFDTOTAL-GXKK200301019.htm [4] 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 [5] Heino R. Progress in the study of climate extremes in northern and central Europe. Climatic Change, 1999, 42: 151-181 doi: 10.1023/A:1005420400462 [6] Bonsal B R, Zhang X, Vincent L A, et al. Characteristics of daily and exteme temperature over Canada. J Climate, 2001, 14: 1959-1971 doi: 10.1175/1520-0442(2001)014<1959:CODAET>2.0.CO;2 [7] Easterling D R. Recent changes in frost days and frost-free season in the United States. Bull Amer Meteor Soc, 2002:1327-1332 https://www.researchgate.net/publication/234445010_Recent_Changes_in_Frost_Days_and_the_Frost-Free_Season_in_the_United_States [8] 翟盘茂, 潘晓华.中国北方近50年温度和降水极端事件变化.地理学报, 2003, 58(增刊):1-10 http://www.cnki.com.cn/Article/CJFDTOTAL-DLXB2003S1000.htm [9] 陈乾金, 张永山.华北异常初终霜冻气候特征的研究.自然灾害学报, 1995, 4(3):33-39 http://www.cnki.com.cn/Article/CJFDTOTAL-ZRZH199503006.htm [10] 陈乾金, 夏洪星.我国江淮流域近40年异常初终霜冻的分析.应用气象学报, 1995, 6(1):50-55 http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=19950107&flag=1 [11] 马柱国.中国北方地区霜冻日的变化与区域增暖相互关系.地理学报, 2003, 58(增刊):31-37 http://www.cnki.com.cn/Article/CJFDTOTAL-DLXB2003S1003.htm [12] 杜军, 宁斌.雅鲁藏布江中游近40年异常初终霜冻分析.气象, 2006, 32(9):84-89 http://www.cnki.com.cn/Article/CJFDTOTAL-QXXX200609014.htm [13] 严中伟, 杨赤, Jones P.观测序列的不均一性对估算北京和上海的平均温度与极端温度变化趋势的影响.大气科学进展:英文版, 2001, 18(3):309-322 http://www.cnki.com.cn/Article/CJFDTOTAL-DQJZ200103000.htm [14] 王世斌.南京地区晚霜冻对茶树的危害及防御.南京农专学报, 2001, 17(4):49-52 http://www.cnki.com.cn/Article/CJFDTOTAL-NJNZ200104014.htm [15] 中国气象局.中国灾害性天气气候图集.北京:气象出版社, 2007. -
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