土壤水力性质的估算——土壤转换函数  

ESTIMATION OF SOIL HYDRAULIC PROPERTIES-PEDO-TRANSFERFUNCTIONS

作　　者：黄元仿[1] 李韵珠[1] 

机构地区：[1]中国农业大学资源环境学院,北京100094

出　　处：《土壤学报》2002年第4期517-523,共7页Acta Pedologica Sinica

基　　金：国家重点基础研究专项经费(G1999011700);ACIAR项目(LWR1/96/164)资助

摘　　要：利用一些易获得的土壤理化参数可以估算土壤水力性质,这些估算方程统称为土壤转换函数,即PTFs（Pedo-Transfer Functions）。本文综述了目前国内外土壤转换函数研究的概况,并利用在华北地区收集到的实测资料,建立了一些土壤转换函数,通过对部分转换函数作的检验和评估,总体而言,所建立的各类模型的预测效果都比较理想,应用于小比例尺的区域研究是可行的。Soil hydraulic properties can be estimated from soil basic properties such as soil texture, bulk density and soil organic matter, which can be obtained easily. These estimating functions are called as Pedo-Transfer Functions (PTFs) . Based on the summary of relevant study on PTFs, data collected from Huabei Region was analyzed in this paper. Some PTFs have been established and verified. It was found that the PTFs were useful in the estimation of soil hydraulic parameters in a regional scale.

关 键 词：土壤水力性质 估算 土壤转换函数 

分 类 号：S152.7[农业科学—土壤学]