Integrated practices for reducing sediment loss from Piedmont tobacco fields

Relationship between soil and water conservation practices and soil conditions in low mountain and hilly region of Northeast China

“…Severely but not reversibly degraded soils might take as long as 100 years to return to a self-sustaining state suitable for agriculture (Blanco-Canqui and Lal, 2008). Canopy and surface litter could effectively control water-or wind-induced soil erosion, as well as water and water quality losses (Baker and Laflen, 1983;Gebhardt et al, 1985;Zheng et al, 2004;Hazel et al, 2008). Degraded soil with topsoil might take 20 years to recover, but this duration could be reduced to three to five years with proper management.…”

Nonpoint Source Pollution

“…Porter (2008) stated that the TMDLs determining acceptable loads to receiving waters will be instituted as the basis for watershed planning and management. Zhang and Yu (2008) Hazel et al (2008) evaluated the effectiveness of three BMPs for fluecured tobacco production -reduced tillage, grassed field-side filter zones, and forested filter zones -to determine the total reduction in suspended solids from storm water runoff. crop production, they suggested to reduce the target level for national grain self-sufficiency to 90%-95% and change the regional structure of grain production by moving some of the future grain production from the high NPP risk areas of eastern China to parts of the central and western provinces where the NPP risk was much less.…”

Effects of social capital and technology cognition on farmers' adoption of soil and water conservation tillage technology in the Loess Plateau of China

“…Soil and water loss leads to deterioration of ecological environment; furthermore, it lowers land productivity and degrades social economy. In the case of climate change, global warming causes changes in rain capacity and its characteristic [ 1 , 2 ]. These changes affect significantly the soil erosion and runoff in the Loess Plateau.…”