Observation and Modeling for Terrestrial Processes in Alpine Meadow
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摘要: 对海北高寒草甸地区水热传输过程进行了系统观测，特别考虑了叶片气孔为非饱和水汽条件下的交换情况，结合修正的根系吸水公式，发展了一个多层陆气耦合模式．利用该模式对中国科学院海北高寒草甸生态试验站地区矮嵩草草甸陆气水热交换进行了数值模拟，分析了湍流交换的物理过程，给出了沿高度分布的各物理量．模拟结果与实测值吻合较好．Abstract: The water-heat transfer process between land and atmosphere in Haibei alpine meadow area has been systematically observed. A multi-layer coupling model for land-atmosphere interaction was presented with special attention paid to the moisture transfer in leaf stomata under unsaturated condition. A profound investigation on the physical process of turbulent transfer inside the vegetation has been performed with a revised formula of water absorption for root system. The present model facilitates the study of vertically distributed physical variables in detail. Numerical simulation was conducted according to the transfer process of Kinesia humility meadow in the area of Haibei Alpine Meadow Ecosystem Station, CAS. The calculated results agree well with observation.
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[1] 夏武平.高寒草甸生态系统[M].兰州：甘肃人民出版社，1981. [2] Deardorff I W.Efficient prediction of ground surface temperature and moisture with inclusion of a layer vegetation[J].J Geophys Res,1978,83:1889—1903. doi: 10.1029/JC083iC04p01889 [3] Dickinson R W.Biosphere-atmosphere transfer scheme(BATS)for NCAR community model[R]. NCAR,Boulder Co,TN-275+STR,1986. [4] Seller P J,Mintz Y.A simple biosphere model(SiB) for use within general circulation models[J].J Atmos Sci,1986,43:505—531. doi: 10.1175/1520-0469(1986)043<0505:ASBMFU>2.0.CO;2 [5] Naot O,Mahrer Y.Modelling microclimate environments:a verification study[J].Boundary Layer Meteorology,1989,46:333—354. [6] Ten Berge H F M.Heat and Water Transfer in Bare Topsoil and the Lower Atmosphere[M].Netherlands:Pudoc Wageningen,1990. [7] 胡隐樵，高由禧，王介民，等.黑河实验(HEIHE)的一些研究结果[J].高原气象，1994，13(3)：225—236. [8] 季国良.青藏高原能量收支观测实验的新进展[J].高原气象，1999，18(3)：333—340. [9] 姚德良，沈卫明，谢正桐，等.高寒草甸地区牧草生长量模拟模式研究[J].草地学报，1996，4(4)：274—280. [10] 姚德良，沈卫明，张强，等.高寒草甸生态系统陆地生物圈模式研究及应用[J].高原气象，2002，21(4)：389—394. [11] 谢正桐，李家春，姚德良.考虑植被影响的陆气耦合模式[J].力学学报，1998，30(3)：267—276. [12] 李家春，姚德良，沈卫明，等.干旱地区陆面过程耦合模式及其应用[J].应用数学和力学，1999，20(1)：1—10. [13] 姚德良，谢正桐，李家春.禹城地区陆气相互作用耦合模式和观测研究[J].生态学报，2000，20(6)：1076—1082. [14] 潘林林，陈家宜，张宏升，等.一维地气耦合模式及其在内蒙古草原的应用[J].大气科学，1996，20(3)：267—277. [15] Molz F J.Models of water transport in the soil-plant system:A review[J].Water Resour Res,1981,17(5):1245—1260. doi: 10.1029/WR017i005p01245 [16] 康绍忠，刘晓明，熊运章.土壤-植被-大气系统连续体水分传输理论及其应用[M].北京：水利电力出版社，1994. [17] 程纯枢.中国农业百科全书，农业气象卷[M].北京：农业出版社，1986. -
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