土壤2011，Vol.43Issue(2)：293-298,6.
黄土高原沟壑区塬面苹果园土壤水分特征分析
Study on Characteristics of Apple Orchard Soil Moisture in Gully Region of Loess Plateau
摘要
Abstract
In order to understand how apple trees influence the orchard soil moisture, the characteristics of orchard soil moisture under different planting-year were investigated. The results showed that the orchard soil moisture in gully region of Loess Plateau was deficient for it was generally lower than the 80％ of field capacity. The average soil water content at 0-10 m depth had extremely significant correlation with those of the layers below 3 m, had significant correlation with that of the 2-3 m layer, but hnd no correlation with that of 0-2 tn depth. With the increase of planting-year, soil water content decreased firstly and then increased, soil water volatility and the quantity of water deficit increased firstly and then decreased, the water depth available to the roots deepened. The deepest water depth available to the roots could reach to 8m during the lifecycle of apple trees,关键词
黄土高原/苹果园/土壤水分/不同种植年限Key words
Loess Plateau/ Apple orchard/ Soil moisture/ Different planting-life分类
农业科技引用本文复制引用
张义,谢永生,郝明德..黄土高原沟壑区塬面苹果园土壤水分特征分析[J].土壤,2011,43(2):293-298,6.基金项目
国家科技支撑计划项目(2011BAD31B01)、国家重点基础研究发展计划项目(2009CB118604)、水利部公益性行业科研专项项目(201001036)、水利部公益性行业科研专项项目(200901051)和中国科学院知识创新工程重大项目(KSCX-YW-09-07)资助. （2011BAD31B01）
