沙地草牧场防护林对土壤水分变化的影响  

Effect of Grassland Shelterbelt on Soil Moisture in Sandy Land

作　　者：袁春良[1] 吴德东[2] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150040 [2]辽宁省固沙造林研究所

出　　处：《防护林科技》2008年第3期4-5,13,共3页Protection Forest Science and Technology

摘　　要：通过白音花沙地草牧场防护林下的土壤水分变化分析得出:草牧场防护林保护下的土壤水分随季节变化呈现明显的周期变化,距林带不同距离及不同土壤深度的土壤水分变化也不同。研究表明:草牧场防护林不仅提高了其防护范围内的土壤水分,改善了土壤水分供应状况,而且可有效调控沙地土壤水分,提高沙地生产力。Soil moisture changes in sandy grassland with sheherbelts in Baiyinhua were analyzed. Result shows that the soil moisture changes with changes of seasons, the distances to shelterbelt, and soil depths; the shelterbelt increases not only soil moisture ,but also grassland productivity.

关 键 词：沙地 草牧场防护林 土壤水分 

分 类 号：S727.25[农业科学—林木遗传育种]