干草原区车辆碾压对土壤理化性质的影响  

The influence of vehicles rolling on physical and chemical properties of soil in steppes

作　　者：张琳琳[1] 丁国栋[1] 肖萌[1] 丁泊元[1] 吕仁猛[1] 

机构地区：[1]北京林业大学水土保持学院/水土保持与荒漠化防治教育部重点实验室,北京100083

出　　处：《干旱区资源与环境》2013年第12期81-86,共6页Journal of Arid Land Resources and Environment

基　　金：交通运输建设科技项目(201103180772830)资助

摘　　要：文中以干草原区不同程度车辆碾压的道路为研究对象,测定不同碾压程度道路的土壤容重、土壤含水量及土壤养分的变化,探讨不同程度车辆碾压对土壤理化性质的影响。结果表明:车辆碾压导致土壤容重增加,碾压后有植被区域含水量增加、无植被区域含水量减少;碾压区域土壤容重及含水量纵向规律发生改变;碾压道路表层土壤有机质及土壤全氮含量减少;但底层土壤有机质及土壤全氮含量受碾压影响不大。To investigate the effect of vehicles rolling on physical and chemical properties of soil,this research took the vehicles rolling roads of different degrees in steppes as research object and had determined the changes of soil bulk density,soil moisture and soil nutrient of vehicles rolling roads.The results indicated that vehicles rolling led to the increase of soil bulk density.The water content increased in areas with vegetation and decreased in areas without vegetation.The vertical law of bulk density and soil moisture changed.The content of organic matter and total nitrogen in surface of the vehicles rolling area were lower than the contrast area while there was little effect in the bottom.

关 键 词：干草原区 车辆碾压 土壤理化性质 

分 类 号：S157.1[农业科学—土壤学]