The APEX (Agricultural Policy-Environmental eXtender) model developed in the United States was calibrated for northwestern China's conditions. The model was then used to investigate soil erosion effects associated with alternative land uses at the ZFG (Zi-Fang-Gully) watershed in northwestern China. The results indicated that the APEX model could be calibrated reasonably well (+/-15% errors) to...

Soil erosion is a major cause of land degradation. It can be estimated with several models, such as empirical, conceptual and physical based. One the empirical models used worldwide nowadays for soil assessment Universal Loss Equation (USLE) its updated form, Revised (RUSLE). In Morocco, this model being to assess quantify loss by water erosion. spite this, it was noted that limited studies emp...

Uncontrolled deforestation and land clearing for agricultural, urban development, infrastructure construction without considering cover management (C&P) factors have resulted in severe soil erosion over the surface of Cameron Highlands state Pahang, Malaysia. Thus, this study determines C&P Universal Soil Loss Equation (USLE) to forecast loss risk. Land use recorded by PLANMalaysia Depa...

Soil conservation (SC) is an important ecosystem regulating service. At present, methods for SC mapping to identify priority areas are primarily based on empirical soil erosion models, such as the RUSLE (Revised Universal Soil Loss Equation) based model. However, the parameters of the empirical soil conservation model are based on long-term observations of field experiments at small spatial sca...

The impact of military training activities (primarily foot traffic) on soils and vegetation was assessed at the United States Air Force Academy, Colorado, USA. In May-June 1998 after 2 years of intensive training use, mean bulk densities of the top 6 cm of soil in the high-use site (1.37 g/cm(3)) and moderate-use site (1.30 g/cm(3)) were significantly different from bulk density of the referenc...

Soil loss resulting from various land management practices in traditional rubber-growing areas of Sri Lanka has been a major issue concern and one the factors responsible for declining rubber productivity. There is no or limited information on spatial variability soil lands Lanka's growing areas. This constraint had significant impact effective conservation lands. study focuses assessing smallh...

An approach is proposed in the present study to estimate soil erosion data-scarce Kokcha subbasin Afghanistan. The Revised Universal Soil Loss Equation (RUSLE) model used erosion. satellite-based data are obtain RUSLE factors. results show that slight (71.34%) and moderate (25.46%) dominated basin. In contrast, high (0.01%) insignificant area. highest amount of observed Rangeland (52.2%) follow...

The Universal Soil Loss Equation (USLE) and its derivatives are widely used for identifying watersheds with a high potential for degrading stream water quality. We compared sediment yields estimated from regional application of the USLE, the automated revised RUSLE2, and five sediment delivery ratio algorithms to measured annual average sediment delivery in 78 catchments of the Chesapeake Bay w...

The increasing sediment yield in the watershed is caused by natural and human activities, which significantly shifts hydro-meteorological watershed. Modified Universal Soil Loss Equation (MUSLE) equation Water Assessment Tool (SWAT) was used to estimate yields for each hydrological response unit (HRU) based on peak runoff, daily runoff volume, area of unit, other estimated default model paramet...

Globally, soil erosion is a significant problem contributing to nutrient loss, water quality degradation, and sand accumulation in bodies. Currently, various climate factors are affecting the natural resources entire worldwide. Agricultural intensification, some other human impacts all contribute erosion, which issue. Management conservation efforts watershed can benefit from study. Modeling es...