【摘 要】
:
Soil erodibility is an important index to evaluate the soil sensitivity to erosion. The research on soil erodibility is a crucial tache in understanding the mec
【机 构】
:
College of Resources Science and Technology Key Laboratory of Environmental Change and Natural Disas
论文部分内容阅读
Soil erodibility is an important index to evaluate the soil sensitivity to erosion. The research on soil erodibility is a crucial tache in understanding the mechanism of soil erosion. Soil erodibility can be evaluated by measuring soil physiochemical properties, scouring experiment, simulated rainfall experiment, plot experiment and wind tunnel experiment. We can use soil erosion model and nomogram to calculate soil erodibility. Many soil erodibility indices and formulae have been put forward. Soil erodibility is a complex concept, it is influenced by many factors, such as soil properties and human activities. Several obstacles restrict the research of soil erodibility. Firstly, the research on soil erodibility is mainly focused on farmland; Secondly, soil erodibility in different areas cannot be compared sufficiently; and thirdly, the research on soil erodibility in water-wind erosion is very scarce. In the prospective research, we should improve method to measure and calculate soil erodibility, strengthen the research on the mechanism of soil erodibility, and conduct research on soil erodibility by both water and wind agents.
其他文献
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
Vertical cycle karst zone has been studied for more than 100 years, however karst subzones in the zone have never been divided and affected depth of CO2 from ra
从空间可达性角度研究其应急避难场所布局的合理性具有非常重要的战略意义和现实意义.本文采用基于GIS的两步移动搜寻法,以北京市海淀、丰台、石景山3个西部城区的59个街道为
The IGU-2006 Brisbane Conference was convened on 3-7 July 2006 in Queenland University of Technology, Brisbane, Australia. Approximately 1000 geographers from n
2006 Annual Meeting of the Geographical Society of China (GSC) was held on August 19-21 in Lanzhou, Gansu Province of Northwest China. A total of some 1000 geog
资产负债管理是商业银行的综合性管理技术. 分析了现有研究的特点和不足,以线性规划为手段,以资产收益最大化为目标函数,以法律约束、法规约束和经营管理约束为条件,在满足流
针对地质资料信息服务过程中,存在信息孤岛和数据共享不够等问题,提出了面向开放关联数据LOD的地质资料机构知识库语义扩展方法,并对方法的框架和关键技术进行了研究.首先,基
The Integrated Environmental Monitoring (IEM) project, part of the Asia-Pacific Environmental Innovation Strategy (APEIS) project, developed an integrated envir
Terrestrial ecosystems represent the second largest carbon reservoir, and the C balance in terrestrial ecosystems can be directly impacted by human activities s
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7