Effect of natural restoration time of abandoned farmland on soil detachment by overland flow in the Loess Plateau of China

2013 ◽  
Vol 38 (14) ◽  
pp. 1725-1734 ◽  
Author(s):  
Bing Wang ◽  
Guang-hui Zhang ◽  
Yang-yang Shi ◽  
X.C. Zhang ◽  
Zong-ping Ren ◽  
...  
Keyword(s):  
Loess Plateau ◽  
Overland Flow ◽  
The Loess Plateau ◽  
Abandoned Farmland ◽  
Natural Restoration ◽  
Restoration Time

Soil erodibility influenced by natural restoration time of abandoned farmland on the Loess Plateau of China

Geoderma ◽  
2018 ◽  
Vol 325 ◽  
pp. 18-27 ◽  
Author(s):  
Hao Wang ◽  
Guang-hui Zhang ◽  
Ning-ning Li ◽  
Bao-jun Zhang ◽  
Han-yue Yang
Keyword(s):  
Loess Plateau ◽  
Soil Erodibility ◽  
The Loess Plateau ◽  
Abandoned Farmland ◽  
Natural Restoration ◽  
Restoration Time

Land use impacts on soil detachment capacity by overland flow in the Loess Plateau, China

CATENA ◽  
2015 ◽  
Vol 124 ◽  
pp. 9-17 ◽  
Author(s):  
Zhen-Wei Li ◽  
Guang-Hui Zhang ◽  
Ren Geng ◽  
Hao Wang ◽  
X.C. Zhang
Keyword(s):  
Land Use ◽  
Loess Plateau ◽  
Overland Flow ◽  
Land Use Impacts ◽  
The Loess Plateau

scholarly journals Study on the influence of vegetation change on runoff generation mechanism in the Loess Plateau, China

2020 ◽  
Author(s):  
Xueli Zhang ◽  
Yue Yu ◽  
CaiHong Hu ◽  
Jianhua Ping
Keyword(s):  
Loess Plateau ◽  
Vegetation Change ◽  
Overland Flow ◽  
Yellow River ◽  
Generation Mechanism ◽  
Underlying Surface ◽  
The Yellow River ◽  
Runoff Generation ◽  
The Loess Plateau ◽  
Related Factors

Abstract In recent years, the amount of water and sediment in the Yellow River Basin has dropped drastically. This paper selected 125 rainfall and flood data points from 1965 to 2015, combined hydrological methods and mathematical statistics to analyze the hydrological factors and runoff generation mechanism, and combined the underlying surface conditions of the Gushanchuan Basin. The characteristics of change revealed the temporal and spatial variation characteristics and related factors of the runoff generation mechanism in the basin. The results showed that the Gushanchuan Basin is still dominated by HOF runoff, but the runoff generation mechanism also has changed with changes in the underlying surface, which are reflected in increased runoff components, the reduced proportion of HOF runoff, and the increased proportion of saturation-excess overland flow (SOF) runoff and mixed runoff. We analyzed the variation law of underlying surface in the basin, which indicated that the increase in the forest grass area was the main factor affecting changes in the watershed runoff generation mechanism. This research will enable a deeper understanding of the runoff generation mechanism of the main soil erosion areas in the Loess Plateau, reveal variations in the runoff generation mechanism in the Yellow River.

scholarly journals Rainfall-runoff processes in the Loess Plateau, China: Temporal dynamics of event rainfall-runoff characteristics and diagnostic analysis of runoff generation patterns

2020 ◽  
Author(s):  
Qiang Wu ◽  
Zhaoxi Zhang ◽  
Guodong Zhang ◽  
Shengqi Jian ◽  
Li Zhang ◽  
...  
Keyword(s):  
Loess Plateau ◽  
Time Scale ◽  
Overland Flow ◽  
Yellow River ◽  
Separation Procedure ◽  
Runoff Coefficient ◽  
Rainfall Runoff ◽  
Runoff Generation ◽  
The Loess Plateau

Abstract. The Loess Plateau is the most erosion-prone area in China, while under large-scale ecological restoration runoff and sediments continue to decrease. This study examined the runoff generation mechanism at the catchment scale to understand the change in runoff generation. Six baseflow used to separation method were tested and the nonparametric simple smoothing method was seperating base flow. With the event runoff separation procedure, 340 rainfall–runoff events are selected in five typical catchments affected by significant human intervention in the Loess Plateau. Runoff characteristics, such as the event runoff coefficient, time scale, rise time, and peak discharge are studied on monthly and long-term scales. In catchments of Jialuhe, Chabagou and Gushanchuan with poor vegetation runoff response is strongly decided by rainfall intensity and is produced by Horton overland flow (HOF). While the mountainous catchments of Jingle and Zulihe runoff response is controlled by rainfall volume. The relation between runoff event characteristics and rainfall is complicated in Loess Plateau, where rainfall and underlying surface is significantly changing. The monthly of event characteristics is mostly controlled by rainfall characteristics. Long-term runoff coefficient experiences decreasing trend, while time scale trend is increasing. Land use changes lead to increasing catchment wetness display mostly strong reason in event characteristic response. According to our proposed framework for classifying dominant runoff generation patterns considering of hydrograph response time, discharge source, and flow paths, HOF runoff is still the dominant mechanism, but gradually shifts to Dunne overland flow (DOF) and combination runoff. We speculate that the reduction in runoff in the Yellow River is likely to be the dominant runoff mechanism changing.

Sign in / Sign up

Export Citation Format

Share Document