Soil and water conservation management on hill slopes in Southwest Ethiopia. I. Effects of soil bunds on surface runoff, erosion and loss of nutrients

2021 ◽  
Vol 757 ◽  
pp. 142877
Author(s):  
Kebede Wolka ◽  
Birhanu Biazin ◽  
Vegard Martinsen ◽  
Jan Mulder
Keyword(s):  
Water Conservation ◽  
Surface Runoff ◽  
Conservation Management ◽  
Soil And Water Conservation ◽  
Southwest Ethiopia ◽  
Soil And Water

Effects of soil and water conservation management and rainfall types on runoff and soil loss for a sloping area in North China

2020 ◽  
Vol 31 (15) ◽  
pp. 2117-2130 ◽  
Author(s):  
Jiayi Huo ◽  
Xinxiao Yu ◽  
Changjun Liu ◽  
Lihua Chen ◽  
Wenge Zheng ◽  
...  
Keyword(s):  
Water Conservation ◽  
Soil Loss ◽  
North China ◽  
Conservation Management ◽  
Soil And Water Conservation ◽  
Runoff And Soil Loss ◽  
Soil And Water

scholarly journals Analisis Respons Hidrologi untuk Mendukung Perencanaan Pengelolaan Sub-DAS Opak Hulu, Daerah Istimewa Yogyakarta

2020 ◽  
Vol 25 (4) ◽  
pp. 503-514
Author(s):  
Nicko Widiatmoko ◽  
Suria Darma Tarigan ◽  
Enni Dwi Wahjunie
Keyword(s):  
Land Use ◽  
Watershed Management ◽  
Water Conservation ◽  
Surface Runoff ◽  
Swat Model ◽  
Base Flow ◽  
Soil And Water Conservation ◽  
Hydrological Response ◽  
Management Planning ◽  
Soil And Water

Land use change is one of the causes of the decreasing of hydrological function that affects the hydrological response of a watershed. Planning of watershed management needs to be conducted to improve the hydrological function of the watershed. This study aims to determine the hydrological response in supporting watershed management planning in Opak Hulu Watershed. This research was conducted using the Soil and Water Assessment Tool (SWAT) hydrological modeling. The method used included data collection, processing of input data, running of SWAT model, calibration, validation, and the decision of the best watershed management scenarios. The results of the analysis of land use changes in the Opak Hulu Watershed in 2012–2017 had a significant increase in mixed upland agriculture (3.21%) and shrubs (1.43%). Meanwhile, open field (2,31%) and dry land agriculture (1.71%) decreased significantly. Based on the analyzed hydrological scenario, Soil and Water Conservation techniques can decrease the surface runoff and increase the lateral flow and base flow. The scenario is able to decrease the surface runoff by 542.22 mm (27.09%). It increases lateral flow and base flow by 321.82 mm (13.15%) and 797.28 mm (18.32%), respectively. The best watershed management planning with Soil and Water Conservation technique is able to reach Annual Flow Coefficient value to 0,33 (moderate) and 69,85 (moderate) for Flow Regime Coefficient. Keywords: land use, soil and water conservation techniques, SWAT model, watershed

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