期刊论文

中文

干旱区资源与环境

1003-7578

2024

38

01

114-122

10.13448/j.cnki.jalre.2024.013

22B0716:湖南省教育厅优秀青年项目 2022QD12:衡阳师范学院科学基金***启动项目

本校为第一机构

土壤水力性质是土壤水文功能的重要组成部分及影响因子,其对土壤水分分布状态、土壤水分循环的强度与速率具有重要影响.粘土夹层虽在干旱区呈不连续分布的状态,但其植被覆盖率却远高于相同水热条件下的非夹粘土壤.文中以民勤荒漠绿洲过渡带粘土夹层为研究对象,对其土壤物理性质、土壤持水性和导水性质进行测量,同时利用壕沟法对该地15年林龄的深根系乡土物种多枝柽柳根系进行了调查,分析了夹粘土壤剖面的水力性质变化特征及其影响因素,探讨了粘土夹层对干旱区植被恢复和重建的生态水文意义.结果表明:1)土壤颗粒组成和有机质含量是影响土壤持水性和导水性的重要因子.2)15年林龄多枝柽柳根系生物量...

Hydraulic property is an important part of soil hydrological functions,which influences the soil moisture distribution and the intensity and rate of soil hydrological circulation strongly.Although the clay interlayer is discontinuously distributed in the arid area,the vegetation coverage in this area is often higher than that of non-clayed soils under the same climatic conditions.In this paper,the soil physical properties,soil water holding capacity and hydraulic conductivity of clay interlayer in Minqin desert oasis ecotone were measured.Meanw...