SOIL WATER PROP. DERIVED DATA (FIFE)

During the 1989 FIFE field campaign, measurements were made of soil moisture release parameters and hydraulic conductivity. Bulk density and soil moisture release data were collected at five FIFE sites representing the major soil types in the FIFE study area. These data were used to model the porosity, saturated water potential, and the b-factor (the exponent of the power curve function) following the method of Clapp and Hormberger (1978). These soil moisture characteristics can be used to describe plant-available water and water movement through soils.

1989年FIFE野外试验期间，科研人员针对土壤水分释放参数（soil moisture release parameters）与导水率（hydraulic conductivity）开展了测量工作。研究团队在代表FIFE研究区域主要土壤类型的5个FIFE试验站点采集了土壤容重（bulk density）与土壤水分释放数据。基于Clapp与Hornberger（1978）提出的方法，利用上述数据构建了土壤孔隙度（porosity）、饱和水势（saturated water potential）以及b因子（幂曲线函数的指数）的相关模型。上述土壤水分特征参数可用于描述土壤植物有效水含量与土壤水分运移过程。