摘要
风力侵蚀作为全球性的环境问题,是引起干旱、半干旱地区土壤退化的主要原因之一。土壤结皮是一个具有致密性结构的厚度为几毫米到几厘米的过渡土壤表层,在一定程度上能够抵抗风力侵蚀。本文在概要阐述土壤结皮类型的基础上,重点从土壤结皮盖度、厚度以及物质组成等方面评述了结皮特性对风力侵蚀的影响,展望了土壤结皮防控风蚀的两个研究方向,以期为干旱、半干旱地区防风固沙提供理论支持。
Wind erosion is an environmental issue worldwide,also the main reason causing soil degradation in the arid and semiarid areas.Soil crusts are transient soil-surface layers with dense structure and thickness ranging from several millimeters to a few centimeters,which can resist wind erosion at a certain extent.Based on a brief summarization of soil crust types,this review highlights the influences of soil crust cover,thickness,and material compositions on wind erosion,and discusses the roles of soil crusts in mitigating wind erosion.Two further research perspectives are also proposed.The review paper may provide theoretical supports for developing effective practices against wind erosion in the arid and semi-arid areas.
作者
胡伟
刘晓冰
张兴义
HU Wei;LIU Xiaobing;ZHANG Xingyi(Key Laboratory of Mollisols Agroecology,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China)
出处
《土壤与作物》
2023年第1期88-95,共8页
Soils and Crops
基金
国家重点研发计划项目(2021YFD1500700)
世界黑土联合会项目(ANSO-PA-2020-12)
关键词
物理结皮
生物结皮
结皮特性
临界摩阻风速
风力侵蚀
physical soil crust
biological soil crust
crust properties
threshold friction velocity
wind erosion
