太行山前平原田间土壤水分运移机理研究  

Research on soil moisture transport mechanism in the piedmont of the Taihang Mountains

作　　者：李曼[1] 何雨江[1] 蔺文静[1] 王贵玲[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,石家庄050803

出　　处：《干旱区资源与环境》2014年第3期101-106,共6页Journal of Arid Land Resources and Environment

基　　金：国家重点基础研究发展计划(973计划)项目(2010CB428802);国土资源部公益行业科研专项(200811032);中国地质科学院基本科研业务专项(SK201211)资助

摘　　要：为剖析河北平原种植条件下土壤水分运动时空变化特征,根据典型区2010年全年气象、大田灌溉和负压计监测结果,分析土壤水分运动方式及其形成机理。结果表明:1)研究区土壤水分运动基本类型以蒸发-入渗型为主,但不同季节土壤水分运动方式差异显著,尤以夏季最为复杂;2)降水蒸发、灌溉以及植物根系吸水分别在不同阶段对土壤水分运动起主导作用;3)种植条件下,垂向上剖面动态呈现显著分带性,且灌溉前后土壤水分运动类型呈周期性变化。To analyze the time-space distribution characters of soil moisture movement under planting condition in Hebei plain,this text used the data of meteorology,irrigation and tensiometer in 2010 in a typical area,and analyzed the evolution and formation mechanism of soil moisture movement.The results showed that：（1） The basic type of soil water movement in study area was evaporation-infiltration type,but there were significant differences among different seasons.Especially,it was the most complicated in summer;（2） Rainfall,evaporation,irrigation and root-water-uptake played the leading roles for the soil moisture movement in the different stages;（3） The soil water dynamic presented marked zoning in the vertical under planting conditions.The type of soil moisture movement presented cyclical variations before and after the irrigation.

关 键 词：土壤水势 土壤水分运动类型 零通量面 灌溉 

分 类 号：P641.2[天文地球—地质矿产勘探]