NGHIÊN CỨU ỨNG DỤNG MÔ HÌNH SWAT ĐÁNH GIÁ BIẾN ĐỘNG DÒNG CHẢY, BÙN CÁT TRÊN LƯU VỰC SÔNG NHẬT LỆ TỈNH QUẢNG BÌNH

Abstract

This paper presents the results of research on flow and sediment transport in Nhat Le river basin (Quang Binh province) using hydrological model. The research has setup a SWAT model that simulation results agree well with observed data and then simulation with some flow scenarios taking into account the variation of land cover conditions (forest) in the period 1994-2018. Calculated results have identified the trend of changes in flow and sediment transport to Nhat Le estuary in the period: Total annual flow did not change significantly, soil erosion in the upper basin increased, but represents a non-significant change in the estuary.