文献类型：期刊文献

中文题名：宁夏六盘山北侧5种典型植被的土壤持水性能研究

英文题名：Study on Soil Capacities of Water-retention on Typical Vegetations in the North Side of Liupan Mountains in Ningxia

作者：窦建德[1] 王绪芳[2] 熊伟[3] 王彦辉[3] 于澎涛[3] 郭浩[3]

第一作者：窦建德

机构：[1]宁夏回族自治区固原市原州区林业局;[2]宁夏回族自治区固原市六盘山国营林业局;[3]中国林业科学研究院森林生态环境与保护研究所

年份：2006

卷号：19

期号：3

起止页码：301-306

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究发展规划项目(2002CB111501);国家自然科学基金重点项目(30230290);国家林业局引进国际先进技术项目(2003-4-43);国家林业局森林生态环境重点实验室共同资助

语种：中文

中文关键词：宁夏六盘山;土壤水分特征曲线;土壤持水性;土壤物理特性

外文关键词：Liupan Mountains of Ningxia; soil water characteristic curve; soil water retention; soil physical characters

分类号：S152.7

摘要：通过对土壤水分特征曲线和物理性质的测定，分析了宁夏六盘山北侧5种典型植被类型土壤的持水性能和供水性能。结果表明：用Gardner等在1970年提出的幂函数方程可以较好地反映土壤含水量与土壤水吸力之间的数量关系；不同植被类型土壤各层的土壤密度的大小排序为弃耕地〉山桃人工林〉天然长芒草〉华北落叶松人工林〉天然沙棘林，总孔隙度恰恰相反；在土壤水的中吸力阶段（0．1～1．5MPa），华北落叶松人工林地、天然长芒草地、天然沙棘林地、山桃人工林地和弃耕地土壤各层的含水量分别为169．7～239．3、160．3～236．1、140．9～224．5、119．9～198．1、113．5～176．4g·kg^-1，说明各种植被类型土壤的持水性能依次减弱；不同植被类型土壤的供水性能随着土壤吸力的增加而呈递减趋势，说明通过植树种草可改善土壤结构、降低土壤密度和增加土壤总孔隙度等物理性质而对其持水性能和供水性能产生积极作用。
The capacity of water-retention and -supply for plants of the soils on five typical vegetations were analyzed by measuring the soil water characteristic curves and physical properties in the north side of Liupan Mountains, Ningxia. The results showed that the relationship between soil moisture and soil suction could be successfully expressed by the power function proposed by Gardner et al. （1970）. The soil density in different layers on five vegetations were to low values as follow： abandoned land, Prunus davidiana chtii plantation ranged from high plantation, Stipa bungcana community, Larix principi-rupprechtii plantation and Hippophae rhamnoides community. However, the order of total soil capillary porosity of the iive vegetations was just contrary. From 0. 1 to 1.5 MPa in soil suction, soil water content of Larix principi-rupprechtii plantation, Stipa bungcana community, Hippophae rhamnoides community, Prunus davidiana plantation and abandoned land were ranged in 169.7～239.3g·kg^-1, 160.3 ～ 236.1 g·kg^-1, 140.9～224.5g·kg^-1 , 119.9～198.1g·kg^-1and 113.5～176.4g·kg^-1 respectively, it meant that the soil capacity of water-retention of the five vegetations decreased in order. The order of soil capacity of water-supply for the five vegetation types was the same as soil capacity of water-retention, and it decreased with increasing of soil suction. The results could be explained by the positive effect of soil physical properties （ i. e. soil density and total capillary porosity et al. ） caused by planting trees and grass on the soil capacities of water-retention and -supply.