毛乌素流动沙地植物分布及盖度的研究  

Distribution and Cover Degree of Dune Plant in the Maowusu Sandy Land

作　　者：廖汝棠[1] 张文军[1] 

机构地区：[1]内蒙古大学生物系,内蒙古林业科学研究院

出　　处：《内蒙古林业科技》1996年第3期15-21,共7页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家自然科学基金

摘　　要：在毛乌素沙地绿化过程中如何确定流动沙地中适宜植被覆盖率是一个非常重要的问题。为解决这一问题对一些沙生植物的自然分布及盖度进行了探讨，由于流动沙地中土壤的水分条件较好，可选择其最大的盖度值为种植盖度。但是，固定沙地应控制半灌木及灌木的盖度。固定沙丘种植多年生草本植物。The suitable vegetation coverage of drift sand dune is one of themost important problems to the revegetation in the Maowusu Sandy Land.Thenatural distribution and cover degree of sotne dune plants have been studied tosolve this problem.Because the water condition is best in the soil of drift san-ddune area,the biggest ,cover degree of dune plant can be chosen as a suitablerevegetation coverage.But in the fix sand dune area, the coverage of sub一sh-rub and shrub should be limited.If the aim of revegetation is fixing the sanddune, the herb synusia, which related with surface layer of soil, should bedoveloped in the fixed area.

关 键 词：毛乌素沙地 适宜植被盖度 土壤水分 沙地 

分 类 号：S718.5[农业科学—林学] S727.23