Modeling Phosphorus Transport in Grass Buffer Strips
作者： Dowon Lee , Theo A. Dillaha , Joseph H. Sherrard
DOI: 10.1061/(ASCE)0733-9372(1989)115:2(409)
关键词: Stormwater 、 Infiltration (hydrology) 、 Hydrology 、 Sediment transport 、 Surface runoff 、 Particle-size distribution 、 Nonpoint source pollution 、 Buffer strip 、 Environmental science 、 Hydrograph
摘要: An event-based computer model, GRAPH, was developed to simulate phosphorus (P) transport in grass buffer strips (GBS) by incorporating submodels into SEDIMOT II, a stormwater and sediment model for strip mine reclamation. GRAPH considers the effects of advection processes, infiltration, biological uptake, P desorption from land surface runoff, adsorption dissolved suspended solids changes size distribution on transport. Required input data include: rainfall intensity duration, an inflow hydrograph, graph, distribution, GBS dimensions hydraulic characteristics, graphs P, reaction coefficients soil plant matter, content each particle class. simulates time varying runoff discharge, yield, sediment-bound discharge along with trapping efficiencies GBS. verified using experimental field plots. Model predictions observed compared favorably.
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