压实对土壤水分影响的试验研究  

Experimental Research on Soil Moisture by Compaction

作　　者：张娟利[1] 韩文霆[2] 师帅兵[2] 刘学[2] 

机构地区：[1]兴义民族师范学院,贵州兴义562400 [2]西北农林科技大学中国旱区节水农业研究院,陕西杨凌712100

出　　处：《农机化研究》2011年第10期143-146,共4页Journal of Agricultural Mechanization Research

基　　金：高等学校学科创新引智计划培育项目(111-2-16)

摘　　要：采用模拟机械压实土壤的方法进行5种载荷的土壤压实试验,测定不同深度处土壤水分的值,并与压前土壤水分进行了对比。结果表明:增大载荷和增加压实次数都会使土壤水分损失,最大可使水分损失23.1%;压实对一定的土壤层(25cm以内)的水分损失影响显著,并且模拟载荷在200kg以内对土壤的水分损失影响比较大。Moisture values at different depths of soil are measured through 5 kinds of load soil compaction test using the method of simulation of mechanical and were compared with that before compacted.The result shows： increasing loads or the number of the compaction will cause the loss of soil moisture,up to 23.1% at most;compaction affects the moisture loss of the specific soil layer（25cm or less） significantly,and the soil moisture losses are influenced prominently by the simulation loads under the 200kg.

关 键 词：土壤压实 土壤水分 模拟试验 

分 类 号：S152.4[农业科学—土壤学]