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    Development of a China Dataset of Soil Hydraulic Parameters Using Pedotransfer Functions for Land Surface Modeling

    Source: Journal of Hydrometeorology:;2013:;Volume( 014 ):;issue: 003::page 869
    Author:
    Dai, Yongjiu
    ,
    Shangguan, Wei
    ,
    Duan, Qingyun
    ,
    Liu, Baoyuan
    ,
    Fu, Suhua
    ,
    Niu, Guoyue
    DOI: 10.1175/JHM-D-12-0149.1
    Publisher: American Meteorological Society
    Abstract: he objective of this study is to develop a dataset of the soil hydraulic parameters associated with two empirical soil functions (i.e., a water retention curve and hydraulic conductivity) using multiple pedotransfer functions (PTFs). The dataset is designed specifically for regional land surface modeling for China. The authors selected 5 PTFs to derive the parameters in the Clapp and Hornberger functions and the van Genuchten and Mualem functions and 10 PTFs for soil water contents at capillary pressures of 33 and 1500 kPa. The inputs into the PTFs include soil particle size distribution, bulk density, and soil organic matter. The dataset provides 12 estimated parameters and their associated statistical values. The dataset is available at a 30 ? 30 arc second geographical spatial resolution and with seven vertical layers to the depth of 1.38 m. The dataset has several distinct advantages even though the accuracy is unknown for lack of in situ and regional measurements. First, this dataset utilizes the best available soil characteristics dataset for China. The Chinese soil characteristics dataset was derived by using the 1:1 000 000 Soil Map of China and 8595 representative soil profiles. Second, this dataset represents the first attempt to estimate soil hydraulic parameters using PTFs directly for continental China at a high spatial resolution. Therefore, this dataset should capture spatial heterogeneity better than existing estimates based on lookup tables according to soil texture classes. Third, the authors derived soil hydraulic parameters using multiple PTFs to allow flexibility for data users to use the soil hydraulic parameters most preferable to or suitable for their applications.
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      Development of a China Dataset of Soil Hydraulic Parameters Using Pedotransfer Functions for Land Surface Modeling

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4224858
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    • Journal of Hydrometeorology

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    contributor authorDai, Yongjiu
    contributor authorShangguan, Wei
    contributor authorDuan, Qingyun
    contributor authorLiu, Baoyuan
    contributor authorFu, Suhua
    contributor authorNiu, Guoyue
    date accessioned2017-06-09T17:14:58Z
    date available2017-06-09T17:14:58Z
    date copyright2013/06/01
    date issued2013
    identifier issn1525-755X
    identifier otherams-81813.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4224858
    description abstracthe objective of this study is to develop a dataset of the soil hydraulic parameters associated with two empirical soil functions (i.e., a water retention curve and hydraulic conductivity) using multiple pedotransfer functions (PTFs). The dataset is designed specifically for regional land surface modeling for China. The authors selected 5 PTFs to derive the parameters in the Clapp and Hornberger functions and the van Genuchten and Mualem functions and 10 PTFs for soil water contents at capillary pressures of 33 and 1500 kPa. The inputs into the PTFs include soil particle size distribution, bulk density, and soil organic matter. The dataset provides 12 estimated parameters and their associated statistical values. The dataset is available at a 30 ? 30 arc second geographical spatial resolution and with seven vertical layers to the depth of 1.38 m. The dataset has several distinct advantages even though the accuracy is unknown for lack of in situ and regional measurements. First, this dataset utilizes the best available soil characteristics dataset for China. The Chinese soil characteristics dataset was derived by using the 1:1 000 000 Soil Map of China and 8595 representative soil profiles. Second, this dataset represents the first attempt to estimate soil hydraulic parameters using PTFs directly for continental China at a high spatial resolution. Therefore, this dataset should capture spatial heterogeneity better than existing estimates based on lookup tables according to soil texture classes. Third, the authors derived soil hydraulic parameters using multiple PTFs to allow flexibility for data users to use the soil hydraulic parameters most preferable to or suitable for their applications.
    publisherAmerican Meteorological Society
    titleDevelopment of a China Dataset of Soil Hydraulic Parameters Using Pedotransfer Functions for Land Surface Modeling
    typeJournal Paper
    journal volume14
    journal issue3
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/JHM-D-12-0149.1
    journal fristpage869
    journal lastpage887
    treeJournal of Hydrometeorology:;2013:;Volume( 014 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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