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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (6): 1766-1774    DOI: 10.7522/j.issn.1000-694X.2013.00263
Biology and Soil     
Characteristics of Soil Temperature, Moisture and Heat Pro- and Post-precipitation in Semiarid Grassland over Longzhong Loess Plateau
YUE Ping1,2, ZHANG Qiang1, WANG Sheng1, WANG Run-yuan1, LI Hong-yu1, WANG Ruo-an1
1.Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province/Key Laboratory of Arid Climate Change and Reducing Disaster of China Meteorological Administration, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China;
2.Zhangye National Meteorological Observatory, Zhangye 734000, Gansu, China
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Abstract  

By using the radiation, turbulence flux, soil temperature and soil moisture, and soil heat flux data recorded at the Semi-Arid Climate and Environment Observatory of Lanzhou University(SOCAL)in June 2008, the influence of water stress on soil moisture, temperature and soil thermal parameters for semi-arid grassland on the Loess Plateau were studied. The influence of water stress on energy fluxes and partitioning in semi-arid grassland were also discussed. The results suggest that a wetting layer exists at a depth of 10 cm under the surface of the semi-arid Loess Plateau grassland soil. Under the condition of water stress, heavy precipitation allows soil moisture to be affected as deep as 40 cm below the surface. When this occurs, the sensible heat flux of net radiation energy is mostly consumed during energy distribution of the Loess Plateau semi-arid grassland ecosystem. However, in the absence of water stress, the latent heat flux consumes most of the net radiation components of the energy balance system.

Key words:  semi-arid grassland      water stress      energy partitioning      soil thermal parameters     
Received:  10 October 2012      Published:  07 November 2012
ZTFLH:  S152.8  
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Cite this article: 

. Characteristics of Soil Temperature, Moisture and Heat Pro- and Post-precipitation in Semiarid Grassland over Longzhong Loess Plateau. JOURNAL OF DESERT RESEARCH, 2013, 33(6): 1766-1774.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00263     OR     http://www.desert.ac.cn/EN/Y2013/V33/I6/1766

[1]张强,孙昭萱,王胜.黄土高原定西地区陆面物理量的变换规律研究[J].地球物理学报,2011,54(7):1722-1737.

[2]王胜,张强,岳平,等.黄土高原中部典型台塬区冬季微气象特征研究[J].高原气象,2011,30(4):982-988.

[3]黄荣辉,陈文,张强,等.中国西北干旱区陆-气相互作用及其对东亚气候变化的影响[M].北京:气象出版社,2011:40.

[4]胡隐樵,高由禧,王介民,等.黑河实验(HEIFE)的一些研究成果[J].高原气象,1994,13(3):225-236.

[5]张强,赵鸣.干旱区绿洲与荒漠相互作用下陆面特征的数值模拟[J].高原气象,1998,17(4):335-346.

[6]吕达仁,陈佐忠,陈家宜,等.内蒙古半干旱草原土壤-植被-大气相互作用(IMGRASS)综合研究[J].地学前缘,2002,9(2):295-306.

[7]吕达仁,陈佐忠,王庚辰,等.内蒙古半干旱草原气候-生态相互作用问题——IMGRASS计划初步结果[J].地学前缘,2002,9(2):307-320.

[8]吕世华,尚伦宇,梁玲,等.敦煌戈壁不同近地层大气稳定度下的感热交换系数[J].高原气象,2004,23(5):649-655.

[9]韦志刚,黄荣辉,陈文.敦煌戈壁不同近地层大气稳定度下的感热交换系数[J].高原气象,2006,25(5):834-839.

[10]高艳红,程国栋,刘伟,等.黑河流域土壤参数修正及其对大气要素模拟的影响[J].高原气象,2007,26(5):958-966.

[11]Heusinkveld B G,Jacpbs A F G,Holtslag A A M,et al.Surface energy balance closure in an arid region: role of soil heat flux[J].Agricultrue and Forest Meteorology,2004,122(1/2):21-37.

[12]Twine T E,Kustas W P,Norman J M,et al.Correcting eddy-covariance flux underestimates over a grass land[J].Agricultrue and Forest Meteorology,2000,103(3):279-300.

[13]韦志刚,文军,吕世华,等.黄土高原陆-气相互作用预试验及其晴天地表能量特征分析[J].高原气象,2005,24(4):545-555.

[14]Wen J,Wei Z G,Lv S H,et al.The characteristics of land surface energy and water exchange over the Loess Plateau Mesa in China[J].Advances in Atmospheric Sciences,2007,24(2):301-310.

[15]李振朝,韦志刚,文军,等.黄土高原典型塬区冬小麦田地表辐射平衡各分量特征分析[J].太阳能学报,2009,30(1):12-18.

[16]杨兴国,马鹏里,王润元,等.陇中黄土高原夏季地表辐射特征分析[J].中国沙漠,2005,25(1):55-62.

[17]屈建军,马立鹏,刘丛.甘肃省沙漠化现状、成因及其防治对策[J].中国沙漠,2002,22(5):520-534.

[18]李栋梁,吕兰芝.中国农牧区交错带的气候特征与演变[J].中国沙漠,2002,22(5):483-488.

[19]岳平,牛生杰,张强.民勤一次沙尘暴过程的稳定度分析[J].中国沙漠,2007,27(4):668-671.

[20]王慧,李栋梁.卫星遥感结合地面观测资料对中国西北干旱区地面感热通量的估算[J].中国沙漠,2011,31(4):1022-1030.

[21]张强,王胜.关于黄土高原陆面过程及其观测试验研究[J].地球科学进展,2008,23(2):167-173.

[22]孙昭萱,张强.黄土高原半干旱区陆面温度和能量的气候特征分析[J].中国沙漠,2011,31(5):1302-1308.

[23]张强,王胜,问晓梅,等.黄土高原陆面水分的凝结现象及收支特征试验研究[J].气象学报,2012,70(1):128-135.

[24]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.

[25]张强,曾剑,张立阳,等.夏季风盛行期中国北方典型区域陆面水、热过程特征研究[J].中国科学:地球科学,2012,42(9):1385-1393.

[26]Parton W J,Lauenroth W K,Smith F M.Water loss from a shortgrass steppe[J].Agricultrue and Forest Meteorology,1981,24:97-109.

[27]禹朴家,徐海量,王炜,等.沙丘不同部位土壤呼吸对人工降水的响应[J].中国沙漠,2012,32(2):437-441.

[28]Huang J P,Zhang W,Zuo J Q,et al.An overview of the semi-arid climate and environment research observatory over the Loess Plateau[J].Advances in Atmospheric Sciences,2008,25(6):906-921.

[29]Yang K,Wang J M.A temperature prediction-correction method for estimating surface soil heat flux from soil temperature and moisture data[J].Scince in China Series D,2008,51(5):721-729

[30]Zhang Q,Huang R H.Parameters of land-surface processes for gobi in north-west China[J].Boundary-layer Meteorology,2004,110:471-478.

[31]张强,曹晓彦.敦煌地区荒漠戈壁地表热量和辐射平衡特征[J].大气科学,2003,27(2):247-254.

[32]Frank A B.Evapotranspiration from northern semiarid grasslands[J].Agronomy Journal,2003,95:1504-1509.

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