Sediment Yield Estimation and Soil Conservation Measures for Agrani River Basin Using Geospatial Techniques

2018 ◽  
Vol 5 (1) ◽  
pp. 550-556 ◽  
Author(s):  
Abhijit M. Zende ◽  
Rahul A. Patil ◽  
Gopal M. Bhosale
Keyword(s):  
River Basin ◽  
Sediment Yield ◽  
Soil Conservation ◽  
Yield Estimation ◽  
Geospatial Techniques ◽  
Conservation Measures ◽  
Soil Conservation Measures

scholarly journals Hydrological Response of Precipitation and Human Activities—A Case Study in the Zuli River Basin, China

2018 ◽  
Author(s):  
Chenlu Huang ◽  
Qinke Yang ◽  
Weidong Huang ◽  
Junlong Zhang ◽  
Yuru Li
Keyword(s):  
River Basin ◽  
Human Activities ◽  
Soil Conservation ◽  
Test Methods ◽  
Sediment Discharge ◽  
Contribution Rate ◽  
Conservation Measures ◽  
Reduction Effect ◽  
The Impact ◽  
Soil Conservation Measures

Precipitation and human activities are two essential forcing dynamics that influence hydrological processes. To investigate those impacts, the Zuli River Basin (ZRB, a typical tributary basin of the Yellow River in China) was chosen to identify the impact of precipitation and human activities on runoff and sediment discharge. A double mass curve (DMC) analysis and the test methods, including accumulated variance analysis, sequential cluster, Lee-Heghnian, and moving t-test methods was utilized to determine the abrupt change point based on data from 1956 to 2015. Correlation formulas and multiple regression methods were used to calculate the runoff and sediment discharge reduction effects of soil conservation measures and to estimate the contribution rate of precipitation and soil conservation measures to runoff and sediment discharge. Our results show that the runoff reduction effect of soil conservation measures (45%) is greater than the sediment discharge reduction effect (32%). Soil conservation measures were the main factor controlling the 74.5% and 75.0% decrease in runoff and sediment discharge, respectively. Additionally, the contribution rate of vegetation measures was higher than that of engineering measures. This study provides scientific strategies for water resource management and soil conservation planning at catchment scale to face future hydrological variability.

scholarly journals Hydrological Response to Precipitation and Human Activities—A Case Study in the Zuli River Basin, China

2018 ◽  
Vol 15 (12) ◽  
pp. 2780 ◽  
Author(s):  
Chenlu Huang ◽  
Qinke Yang ◽  
Weidong Huang ◽  
Junlong Zhang ◽  
Yuru Li ◽  
...  
Keyword(s):  
River Basin ◽  
Human Activities ◽  
Soil Conservation ◽  
Test Methods ◽  
Sediment Discharge ◽  
Contribution Rate ◽  
Conservation Measures ◽  
Reduction Effect ◽  
The Impact ◽  
Soil Conservation Measures

Precipitation and human activities are two essential forcing dynamics that influence hydrological processes. Previous research has paid more attention to either climate and streamflow or vegetation cover and streamflow, but rarely do studies focus on the impact of climate and human activities on streamflow and sediment. To investigate those impacts, the Zuli River Basin (ZRB), a typical tributary basin of the Yellow River in China, was chosen to identify the impact of precipitation and human activities on runoff and sediment discharge. A double mass curve (DMC) analysis and test methods, including accumulated variance analysis, sequential cluster, Lee-Heghnian, and moving t-test methods, were utilized to determine the abrupt change points based on data from 1956 to 2015. Correlation formulas and multiple regression methods were used to calculate the runoff and sediment discharge reduction effects of soil conservation measures and to estimate the contribution rate of precipitation and soil conservation measures to runoff and sediment discharge. Our results show that the runoff reduction effect of soil conservation measures (45%) is greater than the sediment discharge reduction effect (32%). Soil conservation measures were the main factor controlling the 74.5% and 75.0% decrease in runoff and sediment discharge, respectively. Additionally, the contribution rate of vegetation measures was higher than that of engineering measures. This study provides scientific strategies for water resource management and soil conservation planning at catchment scale to face future hydrological variability.

scholarly journals Using WaTEM/SEDEM to Configure Catchment Soil Conservation Measures for the Black Soil Region, Northeastern China

2021 ◽  
Vol 13 (18) ◽  
pp. 10421
Author(s):  
Haiyan Fang
Keyword(s):  
Soil Erosion ◽  
Sediment Yield ◽  
Soil Conservation ◽  
Soil Loss ◽  
Large Scale ◽  
Northeastern China ◽  
Catchment Management ◽  
Control Soil ◽  
Conservation Measures ◽  
Soil Conservation Measures

In recent years, to combat soil erosion, large-scale soil conservation measures have been implemented in the world. Evaluation of the integrated catchment management is urgently required. In the present study, soil erosion and sediment yield under 24 scenarios were predicted, based on the water and tillage erosion model and sediment delivery deposition model (WaTEM/SEDEM). The current catchment management was not ideal, with a catchment soil loss rate (SLR) of 599.88 t km−2 yr−1 and a sediment yield of 240.00 t km−2 yr−1. The catchment management with contour tillage on <3° slopes, hedgerow planting on 3–5° slopes, terracing on 5–8° slopes, and forestation on >8° slopes with trenches along the forest and dams in gullies was the best catchment management to control soil loss, with catchment SLR that was less than the tolerable value of 200 t km−2 yr−1. However, the SLR on the <3° slopes was still higher than the tolerable value. It is not enough to control soil loss by only implementing contour tillage measure on <3° slopes, and other measures should be further implemented on these slopes. In gullies, more measures should be implemented to prevent sediment flowing out of the catchments, in Northeastern China.

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