Effects of landuse change on surface runoff and sediment yield at different watershed scales on the Loess Plateau

Effect of rainfall variation and landscape change on runoff and sediment yield from a loess hilly catchment in China

“…The surface hydrology and soil erosion responses of an integrated catchment, on the other hand, are dependent on the whole landscape pattern, which is also sensitive to changes in land cover (Shi et al 2009). For example, Zhang et al (2010) found that sediment yields in four loess hilly watersheds all decreased following the implementation of reforestation and sloping-farmland terracing projects, even when the precipitation amount increased from 350 to 650 mm in the same period. Proper land use can greatly reduce water erosion potential and risk, while land mismanagement can greatly increase these risks.…”

“…Land use and rainfall, however, are the two factors most frequently mentioned (Nearing et al 2005;Foley et al 2005;Wang et al 2008). For example, the implementation of land use conversion projects such as reforestation and farmland terracing has reduced runoff and sediment yield by 20-100 % and 10-100 %, respectively (Zhang et al 2010). Comprehensive land use adjustments, including forestation, sloping land conversion, and dam construction, have greatly reduced the effect of upper soil loss on the lower reaches of the Yellow River (Xu et al 2004;Li and Wei 2011;Zhou and Zhao 2012).…”

“…In general, research on water erosion dynamics shows that both rainstorms and anthropogenic disturbances may contribute a great deal to the total amount of soil loss, but the underlying mechanisms remain unclear (Descroix and Gautier 2002). Runoff and sediment yield would be expected to increase with increased precipitation and decreased forest coverage (Wei et al 2009;Zhang et al 2010). Rainstorms with kinetic raindrop potentials interacting with stark slopes will certainly boost soil particle removal, increasing water yield and sedimentation to downstream areas Nunes et al 2013).…”

Assessment and Research of River Restoration Processes in Regulated Streams of Southeastern Lithuania

“…Depending on the square of the river basin, land use, topographicalgeographical conditions, and surface runoff, different contents of outwash enter regulated streams [26]. The transfer of outwash in regulated streams is introduced as one of the most important naturalization processes [27].…”

Performance Evaluation of SWAT Model for Land Use and Land Cover Changes under different Climatic Conditions: A Review

“…The scientific framework for the analysis of land use systems have changed by the modelling tools which can addresses both spatial and temporal dynamics. It is a universal concern the changes in land use and land cover in river basins resulted in flooding events that has increased sediment loads [2][3][4][5][6]. There are some proportional alterations in the basin condition and hydrological response as a result of changes in land cover and land use scenarios.…”