科尔沁沙地生物与工程结合的固沙措施与效果  

Sand-stablizing measrues and effects of biology and engineering of shifting sand in Horqin sandy land

作　　者：蒋德明[1] 周全来[1] 李雪华[1] 阿拉木萨[1] 寇振武[1] 贺山峰[1] 

机构地区：[1]中国科学院沈阳应用生态所,辽宁沈阳110016

出　　处：《辽宁工程技术大学学报（自然科学版）》2008年第1期141-143,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：国家“十一五”支撑项目资助(2006BAD26B04-01);国家林业局荒漠化监测网络资助项目(00-08-05)

摘　　要：应用生物与工程措施对科尔沁沙地西部流动沙丘进行植被恢复,并通过沙丘监测和植被调查来评价流沙固定和恢复效果。1.0×1.0m的草方格结合适宜的固沙植物,能达到最佳的防风固沙效果。流动沙丘经人工措施固定后,随固定年限的增加,土壤水源涵养能力逐步提高,土壤中的有效养分如全C、有效K、碱解N和有效P等指标显著提高,土壤化学性质得到明显改善。植被盖度明显提高,植物生态系统趋于相对稳定的状态。Applying biology and engineering measures to restoring the vegetation of shifting sand in western region of Horqin sandy land, and sand-stabilizing and restore effect were assessed through sand monitoring and vegetation investigation. 1.0×1.0m size straw check boards with suited sand-stabilizing plants could achieve the best wind break and sand-stabilizing effect. As the time goes by after shifting sands were stabilized, soil water conservation capacity, and the available nutrients, total C, available K, N, and P were increased, soil chemical property was improved obviously. Vegetation coverage was increased and plant ecology system was inclined to reach stabilization condition relatively.

关 键 词：科尔沁沙地 固沙 草方格 土壤养分 植被 

分 类 号：S156.5[农业科学—土壤学]