It has become necessary to estimate the quantities of runoff by knowing amount rainfall calculate required water storage in reservoirs and determine likelihood flooding. The present study deals with development a hydrological model named Hydrologic Engineering Center (HEC-HMS), which uses Digital Elevation Models (DEM). This was used means Geospatial Modeling Extension (HEC-GeoHMS) Geographical...

Since the implementation of market oriented economic reform in 1978, China has been on the track of rapid urbanization. The unprecedented urbanization in China has resulted in substantial cultivated land loss and rapid expansion of urban areas. The cultivated land loss due to urbanization not only threatens food security in China, but has also led to ecological system degradation to which close...

Abstract Cimahi City as a part of the Upper Citarum Sub-Watershed has problems with flooding, land subsidence, and clean water crisis caused by urban development. Currently, multidisciplinary approach to management been expanded include hydrological cycle in it; one concepts that developed is water-sensitive design (WSUD). The purpose this study measure changes surface runoff result infiltratio...

Flood prediction is very important in land and water resources management. Many flood disasters could be mitigated with adequate preparedness especially urban watershed. This study assessed the runoff potential of Opa watershed Southwest Nigeria using remote sensing Soil Conservation Service or SCS curve number (CN) techniques. The 2007 NigSat image year was classified into different cover clas...

The USDA Natural Resources Conservation Service State Soil Geographic (STATSGO) database contains general soils information, but data available in STATSGO cannot be readily extracted nor parameterized to support regional environmental quality modeling. As such, each user must individually and repeatedly process data in STATSGO to obtain necessary soil properties. The objective of this study was...

Soil conservation is the only known way to protect the productive land. In country like Ethiopia, where droughts and floods cause food scarcity problem, soil and water conservation not only increases crop yield, but also prevents further deterioration of land. Soil and water conservation preserve soil moisture and drain water sustainably to avoid soil erosion and depletion of soil nutrients. So...

Conservation tillage reduces the physical movement of soil to the minimum required for crop establishment and production. When consistently practiced as a soil and crop management system, it greatly reduces soil erosion and is recognized for the potential to improve soil quality and water conservation and plant available water. Adoption of conservation tillage increased dramatically with the ad...

The Gully Land Consolidation (GLC) project, aiming to create land for agriculture on the Loess Plateau, heavily interfered with underlying surface and thus affected hydrological process. purpose of this study was investigate effects GLC runoff peak flow rates watershed Plateau under different rainfall events years. A GIS-based Soil Conservation Service Curve Number (SCS-CN) model used. results ...

Fast economic development and population growth has been the major impression in Taiwan for the past twenty years. However, the development has put pressure on the agriculture and overall hydrology of the nation. For example, peak runoff increases significantly in the urbanized area due to the increase of runoff coefficient, which was caused by the over-development of neighboring farmland, the ...

• MSME estimates of direct runoff outperformed the SCS-CN on poorly-drained catchments. Antecedent moisture condition lowlands was defined by initial water table level. Soil saturation coefficient divided into subsurface and surface runoff. A threshold event rainfall depth found for generation. has potential to assess land use changes climate variability. In this study, we calibrated tested Con...