Written in English
|Statement||by Thomas F. Ryan.|
|LC Classifications||Microfilm 51113 (T)|
|The Physical Object|
|Pagination||ix, 52 leaves|
|Number of Pages||52|
|LC Control Number||89893734|
The general principles of erosion control, aimed at preventing soil erosion or reducing its intensity, include: 1. protection of the soil surface against the effect of the kinetic energy of rain drops, of the water flowing down the soil surface and of wind; 2. increase in the infiltration capacity of the soil; 3. improvement of the stability of soil aggregates; 4. increase in the retention and accumulation capacity of the soil surface; 5. less even (coarser) soil . The USDA - Water Erosion Prediction Project (WEPP) model represents a new erosion prediction technology based on fundamentals of stochastic weather generation, inﬁltration theory, hydrology, soil physics, plant science, hydraulics, and erosion mechanics. The hillslope or landscape proﬁle application. Soil erosion prevention material is installed inside stone mattress of revetment side to prevent plant rooting and soil loss. This material can be produced by processing coir, net and such, and plays a role to prevent soil loss, before plant rooting due to flow velocity interference, when using stone mattress construction : Hyoseon Park, Dongwoo Jang, Yonghun Lee. A thorough look at physical properties of soil erosion Soil erosion has been responsible for billions of dollars of damage during the past thirty years, in the United States alone. Soil Erosion provides complete coverage of the physical causes, processes, and effects of this environmental problem from its origins to planning for future conservation and s: 1.
Soil erosion prediction and GIS: Linking theory and practice. In S. H. Luk & J. Whitney (Eds.), Proceedings of the International Conference on the application of geographical information systems to soil erosion management (pp. 31–48). greater than erosion from cropland and 2, times greater than erosion from woodland. Types of Erosion Splash, rill, gully, and channel erosion are depicted in Figure 1. Raindrop splash erosion is caused by the impact of raindrops that detach soil particles. Sheet erosion transports soil particles in the shallow flow of water as it runs off. Land restoration and reclamation practices in relation to improving soil structural conditions for optimal crop growth and prevention of soil resource losses must be grounded on an understanding of principles from soil science, bio-science and engineering. Home | US Forest Service.
A careful study of the factors listed in Table 1 should present the reader with sufficient reason to suspect that most of these factors affect every stream in developed watersheds of the United States. Massive changes in vegetation, land use and weather patterns have led to increased downcutting of channels in coastal California, with the largest watersheds responding first, followed by their. The cause and processes of linear erosion. The cause of linear erosion is to be sought in runoff energy, which depends on runoff volume and its squared speed. THREE THEORIES OF THE ONSET OF RUNOFF. 1. Horton's theory (). Runoff starts when rainfall intensity exceeds soil absorption capacity (Figure 54a). Comparing infiltration to rainfall intensity, absorption decreases over time partly because capillary potential falls as the wetting front penetrates into the soil. Soil salinization and underground structure erosion usually occur in land reclamation regions, especially under semi‐humid climate that annual evaporation is larger than annual rainfall in Northern China. Based on investigations into the status and trends of land reclamation soil along the Bohai Rim, China, this chapter summarizes the evolution of groundwater system and soil . Even though, the application of Vetiver System for erosion control and slope stabilization have been implemented for the last 30 years in Ethiopia, there is a lot of opportunity to refine existing.