摘要
流沙蔓延极易引发沙埋农田、房屋以及道路等风沙危害,对工农业生产及人类生活造成严重威胁,采取各种措施固定流沙是沙区生态环境综合整治的重要途径之一.本文围绕机械沙障的防风固沙效应、促进植被恢复和土壤改良的生态效应、对沙丘形态和移动速率的影响等方面的研究进展进行了系统梳理总结,在此基础上指出目前研究存在的问题:1)沙障效果评价多为单因素效应研究,相互关联性较差;2)缺乏因地制宜的沙障最优配置统一标准;3)实际应用与理论研究联系不够紧密.针对问题,提出了今后沙障技术发展的研究方向,为沙障发展完善提供基本方向和思路.
The spread of quicksands is likely to cause sandstorms to cover farmland, houses and roads, posing serious threats to industrial and agricultural production and human life. Various measures to fix quicksands are important to comprehensively improve ecological environment in sand areas. Wind-sand-fixing effects of mechanical sand barriers, ecological effects of vegetation restoration and soil improvement, and influences on the shape and movement rate of sand dunes are systematically summarized. Existing problems have been found. Evaluation of sand barrier effect has been largely single factor analysis, with poor correlation. There is a lack of unified standard for optimal allocation of sand barriers suitable for local conditions. Practical application is not closely related to theoretical research. Directions for future research are suggested for development of sand barriers.
作者
李红悦
哈斯额尔敦
LI Hongyue;HASI·Eerdun(School of Natural Resources,Faculty of Geographical Science,Beijing Normal University,100875,Beijing,China;MOE Engineering Research Center of Desertification and Blown-sand Controh Beijing Normal University,Beijing100875,China)
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第1期63-67,共5页
Journal of Beijing Normal University(Natural Science)
基金
国家重点研发计划课题资助项目(2016YFC0500805)
国家自然科学基金资助项目(41671002)。
关键词
机械沙障
固沙效应
生态效应
mechanical barrier
sand-fixation
ecological effects
