contributor author | Dai, Yongjiu | |
contributor author | Shangguan, Wei | |
contributor author | Duan, Qingyun | |
contributor author | Liu, Baoyuan | |
contributor author | Fu, Suhua | |
contributor author | Niu, Guoyue | |
date accessioned | 2017-06-09T17:14:58Z | |
date available | 2017-06-09T17:14:58Z | |
date copyright | 2013/06/01 | |
date issued | 2013 | |
identifier issn | 1525-755X | |
identifier other | ams-81813.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4224858 | |
description 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. | |
publisher | American Meteorological Society | |
title | Development of a China Dataset of Soil Hydraulic Parameters Using Pedotransfer Functions for Land Surface Modeling | |
type | Journal Paper | |
journal volume | 14 | |
journal issue | 3 | |
journal title | Journal of Hydrometeorology | |
identifier doi | 10.1175/JHM-D-12-0149.1 | |
journal fristpage | 869 | |
journal lastpage | 887 | |
tree | Journal of Hydrometeorology:;2013:;Volume( 014 ):;issue: 003 | |
contenttype | Fulltext | |