干旱地区农业研究2016，Vol.34Issue(4)：1-5,5.DOI:10.7606/j.issn.1000-7601.2016.04.01
不同土体构型土壤的持水性能
Soil water-holding properties of different soil body configuration
摘要
Abstract
Through GMS software 3D modeling capabilities ,one grape base soil configuration in Ningxia was divided into four categories :loam-sand ,sand ,loam-sand-clay and loam-clay-sand type .It analyzed the features of field capaci-ty ,saturated hydraulic conductivity and bulk density , and studied the soil water-holding performance on different soil body configuration .The results showed that different soil configuration had different bulk density ,field capacity and soil saturated hydraulic conductivity .The sand soil configuration had the lowest field capacity (13% ) and bulk density (1 .5 g·cm-3 ) ,but the highest soil saturated hydraulic conductivity (3 .2 m·d-1 ) .On the contrary ,the loam-clay-sand con-figuration had the highest field capacity (16 .5% ) and bulk density (1 .63 g · cm-3 ) , but the lowest soil saturated hy-draulic conductivity (1 .02 m·d-1 ) .Field capacity has negative correlation with soil saturated hydraulic conductivity (-0 .92 ) ,but it was positively related with bulk density (0 .73 ) ,among the four soil body configurations ,the loam-clay-sand type had the best soil water-holding performance ,sand type was the worst ,and the other types had the general con-figuration ,which need to be modified in order to improve the soil water-holding performance .关键词
土体构型/土壤饱和导水率/田间持水量/土壤持水性能Key words
soil configuration/soil saturated hydraulic conductivity/field capacity/soil water-holding performance分类
农业科技引用本文复制引用
崔浩浩,张冰,冯欣,高业新..不同土体构型土壤的持水性能[J].干旱地区农业研究,2016,34(4):1-5,5.基金项目
中国地质科学院水文地质环境地质研究所基本业务费 （）
