黄柳杨柴混交林固定高大沙丘成效研究  

Effect of The Mixed Forest of Salix gordejevii and Hedysarum fruticosum var.mongolicum for Fixing The High and Large Sand Dunes

作　　者：曲娜[1] 闫德仁[1] 胡小龙[1] 齐鑫淼 袁立敏[1] 薛博[1] 

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]赤峰市林业科学研究院,内蒙古赤峰024000

出　　处：《内蒙古林业科技》2013年第3期23-26,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：内蒙古创新基金(编号:20082002);内蒙古科技厅开发基金(20100513)项目资助

摘　　要：从黄柳和杨柴生长状况、风蚀积沙特征、植物多样性和流动沙丘表面硬度变化等方面研究了生物机械复合沙障保护营造的黄柳杨柴混交林对高大流动沙丘生态修复作用的影响.结果表明：生物机械复合沙障材料黄柳和人工栽植的杨柴生长状况良好,生物机械复合沙障材料黄柳平均成活率为60.35％,沙障内栽植杨柴平均成活率为65.85％,4年生黄柳平均高度132.0 cm,杨柴平均高度99.2 cm;群落中植物种类由4～5种增加到7种,并且出现了多年生物种;混交林迎风面后积沙宽和林内地表风蚀深度都明显增大;沙面硬度值显著增大,还呈现出沿主风方向波浪型变化趋势.Through studying the growth of Salix gordejevii and Hedysarum fruticosum var. mongolicum, the charac- teristics of wind erosion sedimentary sand, the plant diversity, surface hardness of moving dune, the influences of the mixed forest of Salix gordejevii and Hedysarum fruticosum var. mongolicum under the protection of biological - mechanical sand barrier on the ecological restoration in moving dune have been researched. The results show that the materials of biological - mechanical sand barrier are in good growth state, and the average survival rate of Salix gordejevii is 60. 35%, the average survival rate of Hedysarum fruticosum var. mongolicum in sand barrieris 65.85%. The average height of 4 -year Salix gordejevii is 132.0 cm, and the average height of Hedysarumfrutico- sum var. mongolicum is 99.2 cm. The plant species increases from 4 - 5 kinds to 7 kinds, and perennials has ap- peared. The width of blown sand and the wind - erosion depth of surface are significantly increased. The surface hardness has increased obviously, which shows a wave trend along the main wind direction.

关 键 词：流动沙丘 混交林 植物多样性 土壤硬度 

分 类 号：S728.4[农业科学—林木遗传育种]