青藏高原及其典型区域土壤湿度的分布和变化特征
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中国气象局气候变化专项(CCSF201515);国家自然科学基金(41130960)


Distribution and variation of soil moisture over the Tibetan Plateau and its typical areas
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    摘要:

    基于土壤湿度融合分析产品及气象观测资料,分析了青藏高原及其典型区域的土壤湿度分布特征以及影响因素.结果表明:青藏高原土壤湿度与高原降水季节有较好的对应关系,降水量多的季节对应大的土壤湿度,反之亦然,即夏季土壤湿度最大,春季和秋季次之,冬季最小;高原外围土壤相对较湿,中部较干,夏季土壤高湿度区从藏东南向西北、塔里木盆地向藏东北扩展,冬季土壤高湿度区向藏东南和塔里木盆地收缩;土壤湿度垂直层次呈现出浅层和深层低、中间层高的特点,从浅层到深层土壤湿度的变化幅度逐渐减小;高原典型区域土壤湿度逐日变化规律与高原区域平均的土壤湿度时间演变接近一致,降水量的多少和湿润区、半干旱区土壤湿度高低值有较好的对应关系,湿润区垂直梯度大,干旱区和半干旱区垂直梯度小;蒸发量、风速、气温以及植被状况均会影响到土壤湿度的分布特征.

    Abstract:

    With soil moisture dataset derived from China Land Data Assimilation System of China Meteorological Administration(CLDAS-CMA),the spatiotemporal and vertical distribution of soil moisture over the Tibetan Plateau(TP) and its typical areas with influencing factors have been investigated for period of July 1,2009 to June 30,2010.Results show that soil moisture corresponds well to the precipitation over the Tibetan Plateau.Soil tends to be wet during the rainy season with large precipitation and vice versa.Soil moisture persists significant seasonal variation,which is highest in summer,followed by that in spring and autumn,while it is lowest in winter.With the rise of air temperature,March to August has become the period with increasing soil moisture and the areas with high soil moisture has expanded from the southeast part of Tibet to the northwest part of the Plateau,as well as from Tarim Basin to the northeastern of Tibet.As for the vertical distribution,soil moisture tends to be high at interlayer,and low at shallow layer and deep layer,with a gradual decreasing trend in variation magnitude from shallow layer to deep layer.The distribution of soil moisture at typical areas over the TP presents similar temporal variation tendency as the regional average soil moisture for the entire Plateau.Season with large precipitation is corresponding to the season with large soil moisture in humid and semi-arid areas.Humid areas has bigger vertical gradient in soil moisture compared with arid and semi-arid areas.Meteorological variables such as evaporation,wind speed,average air temperature and vegetation coverage have some influence on the distribution of soil moisture.

    参考文献
    [1] 师春香,谢正辉,钱辉,等.基于卫星遥感资料的中国区域土壤湿度EnKF数据同化[J].中国科学(地球科学),2011,41(3):375-385 SHI Chunxiang,XIE Zhenghui,QIAN Hui,et al.China land soil moisture EnKF data assimilation based on satellite remote sensing data[J].Science China Earth Sciences,2011,41(3):375-385
    [2] 李明星,马柱国,牛国跃.中国区域土壤湿度变化的时空特征模拟研究[J].科学通报,2011,56(16):1288-1300 LI Mingxing,MA Zhuguo,NIU Guioyue.Modeling spatial and temporal variations in soil moisture in China[J].Chinese Sci Bull,2011,56(16):1288-1300
    [3] 吴徐燕.基于常规气象资料计算的中国大陆土壤湿度的特征研究[D].兰州:兰州大学大气科学学院,2012 WU Xuyan.A study on characteristics of soil moisture calculated by using routine in weather data in China mainland[D].Lanzhou:College of Atmospheric Sciences,Lanzhou University,2012
    [4] 朱晨,师春香,席琳,等.中国区域不同深度土壤湿度模拟和评估[J].气象科技,2013,41(3):529-536 ZHU Chen,SHI Chunxiang,XI Lin,et al.Simulation and assessment of soil moisture at different depths in China area[J].Meteorological Science and Technology,2013,41(3):529-536
    [5] 张泉,刘咏梅,杨勤科,等.祁连山退化高寒草甸土壤水分空间变异特征分析[J].冰川冻土,2014,36(1):88-94 ZHANG Quan,LIU Yongmei,YANG Qinke,et al.Analysis of the spatial variability of soil moisture in degrading alpine meadow in the Qilian Mountains[J].Journal of Glaciology and Geocryology,2014,36(1):88-94
    [6] 郭东林,杨梅学.SHAW模式对青藏高原中部季节冻土区土壤温、湿度的模拟[J].高原气象,2010,29(6):1369-1377 GUO Donglin,YANG Meixue.Simulation of soil moisture and moisture in seasonally frozen ground of central Tibetan Plateau by SHAW model[J].Plateau Meteorology,2010,29(6):1369-1377
    [7] 赵逸舟,马耀明,马伟强,等.藏北高原土壤温湿度变化特征分析[J].冰川冻土,2007,29(4):578-583 ZHAO Yizhou,MA Yaoming,MA Weiqiang,et al.Variations of soil temperature and soil moisture in northern Tibetan Plateau[J].Journal of Glaciology and Geocryology,2007,29(4):578-583
    [8] 万国宁,杨梅学,王学佳,等.青藏高原中部BJ站土壤湿度不同时间尺度的变化[J].土壤通报,2012,43(2):286-293 WAN Guoning,YANG Meixue,WANG Xuejia,et al.Variations in soil moisture at different time scales of BJ site on the central Tibetan Plateau[J].Chinese Journal of Soil Science,2012,43(2):286-293
    [9] 杨健,马耀明.青藏高原典型下垫面的土壤温湿特征[J].冰川冻土,2012,34(4):813-820 YANG Jian,MA Yaoming.Soil temperature and moisture features of typical underlying surface in the Tibetan Plateau[J].Journal of Glaciology and Geocryology,2012,34(4):813-820
    [10] 高泽永,王一博,刘国华,等.多年冻土区活动层土壤水分对不同高寒生态系统的响应[J].冰川冻土,2014,36(4):1002-1010 GAO Zeyong,WANG Yibo,LIU Guohua,et al.Response of soil moisture within the permafrost active layer to different alpine ecosystems[J].Journal of Glaciology and Geocryology,2014,36(4):1002-1010
    [11] 李燕,刘新,李伟平.青藏高原地区不同下垫面陆面过程的数值模拟研究[J].高原气象,2012,31(3):581-591 LI Yan,LIU Xin,LI Weiping.Numerical simulation of land surface process at different underlying surfaces in Tibetan Plateau[J].Plateau Meteorology,2012,31(3):581-591
    [12] 左志燕,张人禾.中国东部春季土壤湿度的时空变化特征[J].中国科学(地球科学),2008,38(11):1428-1437 ZUO Zhiyan,ZHANG Renhe.Spatial and temporal variations of spring soil moisture in east China[J].Science China Earth Sciences,2008,38(11):1428-1437
    [13] 王晓婷,郭维栋,钟中,等.中国东部土壤温度、湿度变化的长期趋势及其与气候背景的联系[J].地球科学进展,2009,24(2):181-191 WANG Xiaoting,GUO Weidong,ZHONG Zhong,et al.Long term trends of soil moisture and temperature change in east China in relationship with climate background[J].Advances in Earth Science,2009,24(2):181-191
    [14] 张镱锂,李炳元,郑度.论青藏高原范围与面积[J].地理研究,2002,21(1):1-8 ZHANG Yili,LI Bingyuan,ZHENG Du.A discussion on the boundary and area of the Tibetan Plateau in China[J].Geographical Research,2002,21(1):1-8
    [15] 刘强,杜今阳,施建成,等.青藏高原表层土壤湿度遥感反演及其空间分布和多年变化趋势分析[J].中国科学(地球科学),2013,43(10):1677-1690 LIU Qiang,DU Jinyang,SHI Jiancheng,et al.Analysis of spatial distribution and multi-year trend of the remotely sensed soil moisture on the Tibetan Plateau[J].Science China Earth Sciences,2013,43(10):1677-1690
    [16] 张文君.中国土壤湿度分布和变化的观测与模拟[D].北京:中国科学院研究生院,2006 ZHANG Wenjun.Spatial distribution and temporal variation of the observed and simulated soil moisture over China[D].Beijing:School of Graduates,Chinese Academy of Sciences,2006
    [17] 张秀芝,吴迅英,何金海.中国土壤湿度的垂直变化特征[J].气象学报,2004,62(1):51-61 ZHANG Xiuzhi,WU Xunying,HE Jinhai.Vertical character of soil moisture in China[J].Acta Meteorologica Sinica,2004,62(1):51-61
    [18] 王磊,文军,韦志刚,等.中国西北区西部土壤湿度及其气候响应[J].高原气象,2008,27(6):1257-1266 WANG Lei,WEN Jun,WEI Zhigang,et al.Soil moisture over the west of Northwest China and its response to climate[J].Plateau Meteorology,2008,27(6):1257-1266
    [19] 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[J].气象学报,2000,58(3):278-287 MA Zhuguo,WEI Helin,FU Congbin.Relationship between regional soil moisture variation and climatic variability over east China[J].Acta Meteorologica Sinica,2000,58(3):278-287
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卓嘎,陈涛,格桑.青藏高原及其典型区域土壤湿度的分布和变化特征[J].南京信息工程大学学报(自然科学版),2017,9(4):445-454
ZHUO Ga, CHEN Tao, GE Sang. Distribution and variation of soil moisture over the Tibetan Plateau and its typical areas[J]. Journal of Nanjing University of Information Science & Technology, 2017,9(4):445-454

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  • 收稿日期:2016-05-16
  • 在线发布日期: 2017-07-11

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