The aim of the article was to verify curve number (CN) values given in National Engineering Handbook (NEH) methodology, whether they really correspond all wide-row crops. tested crops were maize, hops and potatoes grown using conventional soil conservation technologies. All these are classified as crops, but very different terms cultivation process. basis for calculation our CN field measuremen...

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 ...

The Benanain Watershed is located in East Nusa Tenggara with an area of 3,181 km2 and divided into 29 sub-watersheds. itself eastern region Indonesia a unique climate condition called semi-arid. high rainfall intensity occurring short duration results large surface runoff erosion. Floods erosion semi-arid areas due to sensitive soils drought heavy extremely. This paper presents the application ...

Extensive flood damages all over the world necessitate its control and operation. Hydrologic impacts of land use change appear in many ways such as total runoff, and flood peak flow. This study was performed in 2014 and aimed to investigate the impacts of land use changes on the occurrence of floods in the catchment of Boostan dam in Golestan province, Iran. For this purpose, Watershed Modeling...

The study examined the influence of climate (rainfall and temperature) variability on runoff Rivers Niger Benue confluence at Lokoja, Kogi state, Nigeria. Remotely sensed climatic data for 1979-2014 was obtained from global weather soil water assessment tools website (SWAT), generated using Soil Conservation Service Curve Number method (SCS-CN), Multivariate statistical techniques were used to ...

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 ...

Modeling the hydrology of low‐gradient forested watersheds on shallow, poorly drained soils of the coastal plain is a challenging task due to complexities in watershed delineation, microtopography, evapotranspiration, runoff generation processes and pathways including flooding and submergence caused by tropical storms, and complexity of vegetation species. The main objective of this study was t...

An arc decomposition of the complete digraph DKn into t isomorphic subdigraphs is generalized to the case where the numerical divisibility condition is not satisfied. Two sets of nearly tth parts are constructively proved to be nonempty. These are the floor tth class (DKn − R)/t and the ceiling tth class (DKn + S)/t, where R and S comprise (possibly copies of) arcs whose number is the smallest ...