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| Multiple-time-scale Analysis on Precipitation in Naiman Bannerof Horqin Sandy Land in 1970-2010 |
| Yao Shuxia1,2, Zhang Tonghui2, Zhao Chuancheng1,2 |
1. Lanzhou City College, Lanzhou 730070, China;
2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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Abstract The change trends of Naiman's precipitation patterns during 1970-2010 were analyzed by using linear regression, wavelet analysis and Mann-Kendall (M-K) mutation analysis. The results showed that, (1) Precipitation in the research area was dominated by small precipitation events with 0-5 mm, accounted for 70% of the total events, and up to 18% of the total precipitation amount. The precipitation interval was dominated by 0-5 days, accounted for 73% of the total days without precipitation. (2) In 1970-2010, the annual precipitation and seasonal precipitation changed complex, shown a dry wet dry process; The tendency rate of annual precipitation and spring, summer, autumn and winter precipitation was 12.4, 0.8, 3.2, 1.3 and 0.3 mm/10a, respectively; Annual precipitation and spring, summer and autumn precipitation have been positive anomaly about 1990, and negative anomaly before 1985 and after 1995. Winter precipitation showed a decreasing trend generally. (3) The precipitation was least in January, while a greatest in July and the July's precipitation accounted for more than 30% of the total precipitation amounts. And there was a significant difference in precipitation amount between the July and the other month. (4) Morlet wavelet analysis found that annual precipitation had a shorter cyclical fluctuation of 6-8 years and a longer cyclical fluctuation of 17 years in this region. Annual precipitation and summer, autumn and winter precipitation decreased in the beginning of the 21st century; (5) M-K mutation analysis showed that a reduce trend for annual precipitation and an increase trend for spring precipitation, and the start of abrupt time was 2004 and 2006, respectively.
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Received: 10 July 2012
Published: 20 March 2014
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Corresponding Authors:
张铜会（Email：zhangth@lzb.ac.cn）
E-mail: zhangth@lzb.ac.cn
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[1] 赵玮,张铜会,赵学勇,等.近5 a来科尔沁沙地典型区域地下水埋深变化分析[J].中国沙漠,2008,28(5):995-1000.
[2] 连杰,赵学勇,左小安,等.科尔沁沙地水域景观格局的时空动态——以奈曼旗为例[J].中国沙漠,2012,32(1):210-218.
[3] 刘东,付强.基于小波变换的三江平原低湿地井灌区年降水序列变化趋势分析[J].地理科学,2008,28(3):380-384.
[4] 刘新平,何玉惠,赵学勇,等.科尔沁沙地奈曼旗地区降水变化特征分析[J].水土保持研究,2011,18(2):155-158.
[5] 郭江勇,李耀辉,王文,等.甘肃黄土高原春季的气候特征及预测方法[J].中国沙漠,2004,24(2):211-217.
[6] 陈少勇,郭玉珍,郑延祥,等.甘肃旱作农业区降水对土壤水分的影响[J].中国沙漠,2012,32(1):155-162.
[7] Rodriguez-Iturbe I,Porporato A,Ridolfi L,et al.Probabilistic modeling of water balance at a point:the role of climate,soil and vegetation[J].Proceedings of the Royal Society,1999,455:3789-3805.
[8] 张剑明,黎祖贤,章新平.长沙近 50 年来降水的多时间尺度分析[J].水文,2007,27(6):78-80.
[9] 牛存稳,张利平,夏军.华北地区降水量的小波分析[J].干旱区地理,2004,27(1):66-70.
[10] 孙善磊,周锁铨,金博,等.淮海地区降水周期及突变特征分析[J].气象科学,2010,30(2):221-227.
[11] 张丕远,葛全胜.气候突变:有关概念的介绍及一例分析——我国旱涝灾情的突变[J].地理研究,1990,9(2):92-100.
[12] 符淙斌,王强.气候突变的定义和检测方法[J].大气科学,1992,16(4):482-493.
[13] 魏凤英.现代气候统计诊断与预测技术[M].北京:气象出版社,1999.
[14] 邵晓梅,许月卿,严昌荣.黄河流域降水序列变化的小波分析[J].北京大学学报(自然科学版),2006,42(4):503-509.
[15] 许月卿,李双成,蔡运龙.基于小波分析的河北平原降水变化规律研究[J].中国科学D辑:地球科学,2004,34(12):1176-1183.
[16] 崔锦泰.小波分析导论[M].西安:西安交通大学出版社,1995.
[17] 林振山.子波气候诊断技术的研究[M].北京:气象出版社,1999.
[18] 赵哈林,张铜会,崔建垣.近40 a我国北方农牧交错区气候变化及其与土地沙漠化的关系——以科尔沁沙地为例[J].中国沙漠,2000,20(增刊):1-6.
[19] 王世杰,杨莲梅,史玉光.乌鲁木齐1991-2010年降雨特征分析[J].中国沙漠,2012,32(2):509-516.
[20] Loik M E,Breshears D D,Lauenroth W K,et al.A multi-scale perspective of water pulses in dryland ecosystems:climatology and ecohydrology of the western USA[J].Oecologia,2004,141:269-281.
[21] 何志斌,赵文智.半干旱地区流动沙地土壤湿度变异及其对降水的依赖[J].中国沙漠,2002,22(4):359-362.
[22] 张永民,王云霞,席桂萍.科尔沁沙地及其周围地区降水与气温变化的多时间尺度分析[J].内蒙古农业大学学报,2006,27(2):30-33.
[23] 韩邦帅,薛娴,王涛,等.沙漠化与气候变化互馈机制研究进展[J].中国沙漠,2008,28(3):410-416.
[24] Qian W H,Zhu Y F.Climate change in China from 1880 to 1998 and its impact on the environmental condition[J].Climatic Change,2001,50:419-444.
[25] 刘新民,赵哈林,赵爱芬.科尔沁沙地风沙环境与植被[M].北京:科学出版社,1996:191-211.
[26] Li F R,Zhang H,Zhang T H,et al.Variations of sand transportation rates in sandy grasslands along a desertification gradient in northern China[J].Catena,2003,775:1-18.
[27] 董光荣,陈惠忠,王贵勇,等.150 ka以来中国北方沙漠、沙地演化和气候变化[J].中国科学 (B辑),1995,25(12):1303-1312.
[28] 渠翠平,关德新,王安志,等.近56年来科尔沁沙地气候变化特征[J].生态学杂志,2009,28(11):2326-2332.
[29] 左洪超,吕世华,胡隐樵.中国近50年气温及降水量的变化趋势分析[J].高原气象,2004,23(2):238-244.
[30] 郭洁,李国平.峨眉山近55 a来水资源变化的多时间尺度分析[J].气象科学,2008,28(5):552-557.
[31] 陈仁升,康尔泅,张济世.小波变换在河西地区水文和气候周期变化分析中的应用[J].地球科学进展,2001,16(3):339-345.
[32] 黄磊,张志山,吴攀.沙坡头地区多年降水量时间序列的小波分析[J].兰州大学学报(自然科学版),2010,46(5):63-66.
[33] 王兴梅,张勃,戴声佩,等.甘肃省黄土高原区夏季极端降水的时空特征[J].中国沙漠,2011,31(1):223-229. |
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2014, Vol. 34 
