期刊论文

Soil Hydrological Function of Different Altitudinal Hillslopes of the Three Gorges Mountain and Its Impact Factors

中文

长江流域资源与环境

1004-8227

2018

27

8

1809-1818

10.11870/cjlyzyyhj201808017

41771261:国家自然科学基金 41601215:国家自然科学基金 2015CFA141:湖北省自然科学基金 2016CFA027:湖北省自然科学基金 CCNU16A05015:中央高校基本科研业务费专项华中师范大学项目 CCNU17TS0001:中央高校基本科研业务费专项华中师范大学项目

本校为第一机构

渗透性能和持水能力是土壤重要的水力学性质,是土壤调节径流、保持水土和涵养水源等水文功能的基础。以三峡库首的夷陵-大老岭山地为对象,采集亚高山棕壤针叶林地、中山黄棕壤针阔混交林与茶园地和低山黄壤针叶林地等4个样点剖面的土壤样品,在室内进行土壤饱和导水率、水分特征曲线和理化性质测定,量化了不同样地土壤渗透性能、持水能力和水分库容等水文功能参数,并明确了其主要影响因子。结果表明:研究区山地土壤饱和导水率在0.06~ 14.78 mm/min之间,亚高山棕壤和中山黄棕壤林地土壤渗透性能较好,其平均饱和导水率在7.15~ 14.78 mm/ min之间,低山黄壤次之(1.3 9 mm/min),中山黄棕壤茶园土壤渗透...

Soil permeability and water holding capacity are important soil hydraulic properties,which are also the basis of some hydrological functions,such as runoff regulation,and soil and water conservation. Four sampling locations in the head region of the Three Gorges Reservoir Area were selected to collect the soil samples,which contained the brown soil covered with subalpine temperate coniferous forest (BF),the yellow brown soil covered with deciduous coniferous broad-leaved mixed shrubs (YBF),the yellow brown soil covered with tea tree (YBT),and the yellow soil covered with low-mountain warm coni...