| 沙漠与沙漠化 |
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| Spatial Distribution of Soil Moisture at Unsaturated Zone in Megadunes, Southeast of Badian Jaran Desert |
| MA Jin-zhu1, ZHOU Xiang-yang1, WANG Yun-quan1, John B. Gates2 |
| Key Laboratory of Western Chinas Environmental Systems, Lanzhou University, Lanzhou 730000, China; 2.Bureau of Economic Geology, University of Texas at Austin, Texas 78703, USA |
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Abstract Water is the main factor influencing desert ecosystem and limits the number and size of perennial plant species in arid areas. At present, very little is known about the spatio-temporal variation of soil moisture under the desert systems limited by natural conditions and study tools. The study examined the spatial pattern of soil water content and its relationship with local control factors in southeastern lakes area of Badain Jaran Desert. Results from geostatistics analysis and Detrended Canonical Correspondence Analysis (DCCA) revealed that soil moisture displayed three types: exponent, logarithm and log-normal vertical distributions, which were regulated by capillary fringe, distance to lake and comprehensive terrain attributes, respectively; soil moisture in unsaturated zone was influenced by local control at 0.75—1 m in logarithm while 3—4 m in log-normal distribution sites; soil moisture varied significantly with relative elevation and was highly sensitive to local control factors, whereas length correlation was insensitive.
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Received: 11 August 2010
Published: 20 November 2011
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[1]王金生,杨志峰,陈家军,等.包气带土壤水分滞留特征研究[J].水利学报,2000(2):1-6.
[2]Entin J K,Robock A,Vinnikov K Y,et al.Temporal and spatial scales of observed soil moisture variations in the extratropics[J].Journal of Geophysical Research,2000,105(D9):865-877.
[3]Grayson R B,Western A W, Chiew F H,et al.Preferred states in spatial soil moisture patterns:local and nonlocal controls[J].Water Resources Research,1997,33(12):2897-2908.
[4]Moore I D,Burch G J,Mackenzie D H.Topographic effects on the distribution of surface soil water and the location of ephemeral gullies[J].Transactions of the ASAE(USA),1988,31:1098-1107.
[5]Williams A G,Ternan J L,Fitzjohn C,et al.Soil moisture variability and land use in a seasonally arid environment[J].Hydrological Processes,2003,17:225-235.
[6]Western A W,Gunter B.On the spatial scaling of soil moisture[J].Journal of Hydrology,1999,217:203-224.
[7]Delworth T,Manabe S.The influence of potential evaporation on the variabilities of simulated soil wetness and climate[J].Journal of Climate,1988,1:523-547.
[8]Wilson D J,Western A W,Grayson R B.Identifying and quantifying sources of variability in temporal and spatial soil moisture observations[J].Water Resources Reearch,2007,40,W02507.
[9]Nash M S,Wierenga P J,Gutjahr A.Time series analysis of soil moisture and rainfall along a line transect in arid rangeland[J].Soil Science,1991,152:189-198.
[10]Berndtsson R,Chen He-shen.Variability of soil water content along a transect in a desert area[J].Journal of Arid Environments,1994,27:127-139.
[11]Berndtsson R,Nodomi K,Yasuda H, et al.Soil water and temperature patterns in an arid desert dune sand[J].Journal of Hydrology,1996,185:221-240.
[12]王新平,张志山,张景光,等.荒漠植被影响土壤水文过程研究述评[J].中国沙漠,2005,25(2):196-201.
[13]潘颜霞,王新平,苏延桂,等.荒漠人工固沙植被区浅层土壤水分动态的时间稳定性特征[J].中国沙漠,2009,29（1）:81-86.
[14]顾慰祖,陈建生,汪集,等.巴丹吉林高大沙山表层孔隙水现象的疑义[J].水科学进展,2004,15(16):695-696.
[15]Edmunds W M,Walton N R G.Ageochemical and isotopic approachto recharge evaluation in semi-arid zones,past and present[C].In:Arid Zone Hydrology,Investigations with Isotope Techniques.Vienna;International Atomic Energy Agency,1980:47-68.
[16]马金珠,李丁,李相虎,等.巴丹吉林沙漠包气带Cl-示踪与气候记录研究[J].中国沙漠,2004,24(6):674-679.
[17]Edmunds W M,Darling W G,Kinniburgh D G.Solute profile techniques for recharge estimation in semi-arid and arid terrain[C]//Estimation of Natural Groundwater Recharge (NATOASI Series).Dordrecht:Reidel,1988.139-158.
[18]杨艺,李保生,李云卓,等.巴丹吉林沙漠查格勒布剖面微量元素反映的150 ka BP以来的气候变化[J].中国沙漠,2007,27(1):1-8.
[19]李云卓,李保生,高全洲,等.巴丹吉林沙漠查格勒布剖面记录的150 ka BP以来的常量化学元素波动[J].中国沙漠,2005,25(1):8-14
[20]Braak T.Canonical correspondence analysis:a new eigenvector technique for multivariate direct gradient analysis[J].Ecology,1986,67:1167-1179.
[21]Qiu Yang,Fu Bojie,Wang Jun,et al.Soil moisture variation in relation to topography and land use in a hillslope catchment of the Loess Plateau,China[J].Journal of Hydrology,2000,240:243-263.
[22]邱扬,张金屯.DCCA 排序轴分类及其在关帝山八水沟植物群落生态梯度分析中的应用[J].生态学报,2000,20(2):199-206.
[23]Western A W,Zhou Senlin,Grayson R B,et al.Spatial correlation of soil moisture in small catchments and its relationship to dominant spatial hydrological processes[J].Journal of Hydrology,2004,286:113-134.
[24]Wilson D J,Western A W,Grayson R B.Identifying and quantifying sources of variability in temporal and spatial soil moisture observations[J].Water Resources Research,2007,40,W02507.
[25]Bardossy A,Lehmann W.Spatial distribution of soil moisture in a small catchment Part 1:geostatistical analysis[J].Journal of Hydrology,1998,206:1-15.
[26]Liu S X.Spatial variation of soil moisture in China:geostatistical characterization[J].Journal of the Meteorological Society of Japan,2001,79(1B):555-574.
[27]Huisman J A,Snepvangers J,Bouten W,et al.Mapping spatial variation in surface soil water content:comparison of ground-penetrating radar and time domain reflectometry[J].Journal of Hydrology,2002,269:194-207.
[28]张惠昌,石培泽,武秀珍.沙丘水非平衡运移机理及开发利用研究[M].北京:地震出版社,1998:28-29.
[29]van Genuchten M Th.A closed form equation for predicting the hydraulic conductivity of unsaturated soils[J].Soil Science of America Journal,1980,44:892-898.
[30]Gómez-plaza A,Martìnez-Mena,Albaladejo J.et al.Factors regulating spatial distribution of soil water content in small semiarid catchment[J].Journal of Hydrology,2001,253:211-226.
[31]Brocca L,Morbidelli R,Melone F.et al.Soil moisture spatial variability in experimental areas of central Italy[J].Journal of Hydrology,2007,333:356-373. |
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2011, Vol. 31 
