Simulate Efficacy of Vegetative Filter Strips Based on Coupling Model and its Application

Abstract:

As one of Best Management Practices, Vegetative Filter Strip (VFS) had been widely application and their effects were fine. Planning and design VFS is based on quantitative predicting the purification effect. A mathematical model by coupling Vegetative Filter Strip Model (VFSMOD) with the Modified Universal Soil Loss Equation (MUSLE) was designed to estimate sediments trapping efficiency of VFS under the different conditions. Furthermore, in this paper the applicability of coupling model had been tested well by plot experiments in Chinese northwest, so the coupling model was applied to simulate the efficacy of VFS in Shaanxi Heihe River basin. Result reveals that grassed filter strips with about 10 m width are reasonable in Heihe River basin. Besides that, it is unsuitable to set grassed filter strips under the conditions of 15° above slope in river bank.

• Periodical: Advanced Materials Research (Volumes 998-999)
• Pages: 302-306
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.998-999.302
• Online since: July 2014
• Authors: Na Deng, Yang Zhou*, Huai En Li
• Keywords: Coupling Model, Purification Effect, Vegetative Filter Strip, Width

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