引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1421次   下载 1747 本文二维码信息
码上扫一扫!
分享到: 微信 更多
晋西不同土地利用方式下土壤饱和导水率的影响因素
张君玉1,2, 程金花1, 吕湘海3, 张友焱4, 王彬俨1,5, 孙龙1,6
1.北京林业大学水土保持学院 北京 100083;2.北京良乡蓝鑫水利工程设计所 北京 102488;3.中国国际工程咨询公司 北京 100044;4.中国林业科学研究院荒漠化研究所 北京 100091;5.中国科学院水利部成都山地灾害与环境研究所 四川 成都 610041;6.中国科学院水利部水土保持研究所 陕西 杨凌 712100
摘要:
为了更好地了解晋西不同土地利用方式下的土壤水分特性,利用土壤水分渗透仪测定饱和导水率(Ks),室内测定土壤物理化学性质,分析了饱和导水率与各项土壤物理化学性质指标的相关关系。研究结果表明,土壤饱和导水率随土层深度增加而下降土壤饱和导水率表现为:林地>地埂>农地土壤饱和导水率与容重、非毛管孔隙度、>0.25mm水稳性团聚体、土壤有机质含量等土壤理化特性存在显著相关关系。晋西地区应合理配置林地、地埂、农地,减少荒地,改善土壤的通气透水特性,改良土壤结构。
关键词:  土地利用方式  饱和导水率  影响因素  晋西地区
DOI:
分类号:
基金项目:“十二五”农村领域国家科技计划项目“晋西黄土丘陵沟壑区节水防蚀水土保持林研究与示范”(2011BAD38B0602;2011BAD31B02);中央高校基本科研业务费专项资金项目(TD2011-2);国家自然科学基金项目(41271300;30900866)
Influence Factors of Saturated Hydraulic Conductivity in Different Landuse Types in Western Shanxi Province
ZHANG Jun-yu1,2, CHENG Jin-hua1, LÜ Xiang-hai3, ZHANG You-yan4, WANG Bin-yan1,5, SUN Long1,6
1.College of Soil and Water Conservation, Beijing Forestry University Beijing 100083 China;2.Beijing Liangxiang Lanxin Hydraulic Engineering & Design Beijing 102488 China;3.China International Engineering Consulting Corporation Beijing 100044 China;4.Institute of Desertification Studies, CAF Beijing 100091 China;5.Institute of Mountain Hazards and Environment, CAS Chengdu Sichuan 610011 China;6.Institute of Soil and Water Conservation, CAS, MWR Yangling Shaanxi 712100 China
Abstract:
In order to better understand the characteristics of soil water under different land use modes,the physical and chemical properties of the soil was analyzed with the saturated hydraulic conductivity(K)tested in laboratory by soil water lysimeter and the correlations between the soil saturated hydraulic conductivity and its physical and chemical properties was achieved.The saturated hydraulic conductivity of the soil was decreased with soil depth while the K,was in the decreasing order in the forestland,field ridge and farmland.The K,had the significant correlationship with the soil bulk density,non-capillary porosity and water-stable aggregates(>0.25 mm) and organic content. It is suggested that the forestland,filed ridge,farmland should be deployed rationally with the reduction of the abandoned land to improve the permeability and texture of the soil.
Key words:  landuse types  saturated hydraulic conductivity  influence factors  Western Shanxi Province