Evaluation and modeling of runoff and sediment yield for different land covers under simulated rain in a semiarid region of Brazil

查看全文 作　　者：Richarde Marques da [1]Silva;Celso Augusto Guimaraes [2]Santos;JoséYure Gomes dos [3]Santos

机构地区：[1]Department of Geosciences,Federal University of Parafba,Brazil;[2]Department of Civil and Environmental Engineering Federal University of Parafba,58051-900 Joao Pessoa,Parafba,Brazil;[3]Federal University of Western Bahia,Center for Humanities,Barreiras,Brazil

出　　处：《International Journal of Sediment Research》索引2018年第33卷第2期,共9页

基　　金：the Brazilian National Council of Scientific and Technologic Research-CNPq(553559/2009-5 and 135181/2009-7)for support to this research 摘　　要：This paper quantifies the runoff and sediment yield for four different land covers in a semiarid region of Brazil. The WESP model, a distributed, event-oriented runoff-erosion model, was applied and its physical parameters, N_S and K_R, were adjusted based on observed runoff and sediment yield data using simulated rainfall with an average intensity of 53 mm h^(-1). The sediment yield obtained was 53.02 kg ha^(-1)(caatinga vegetation), 231.96 kg ha^(-1)(bare soil), 309.75 kg ha^(-1)(beans), and 847.38 kg ha^(-1)(corn). The results showed that caatinga cover yields the lowest erosion and runoff when compared to the other treatments.The results also show that the sediment yield and runoff values simulated with N_S, K_I, and KR parameters were well calibrated, within acceptable deviations. The caatinga vegetation was more effective in protecting the soil, when compared to the other types of coverage. The beans and corn covers had the highest values of runoff and sediment yield, even higher than those observed for bare soil. 关键词：半干旱流量沉积模仿巴西产量模特儿面盖

相关文献

参考文献（47）
引证文献（5）
耦合文献（0）

参考文献(47)

引证文献(5)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Evaluation and modeling of runoff and sediment yield for different land covers under simulated rain in a semiarid region of Brazil

参考文献(47)

引证文献(5)

用户提示