this paper describes a simple, physically-based conceptual model utilizing watershed drainage characteristics for rainfall-runoff simulation. this conceptual physiographic model is essentially based on the work of najafi (2003), which has led to a model compris-ing the main tributary subwatersheds and a single main channel subwatershed. the ki-nematic wave (kw) theory is used to describe flow o...

the potassium pools of five major physiographic units of urmia region in western azarbaijan province were studied to investigate the distribution of k forms as a function of clay mineralogy and physiographic units. for this, soil samples from different horizons of ten pedons were selected and analyzed for physiochemical properties, mineralogy of clay fraction, and forms of k. analyses of xrd re...

Evaluation of Oak Forest Drying in Physiographic and Landuse Units Ilam Province using Landsat Satellite Images 8

Growing agricultural, industrial, and residential needs have increased the demand for groundwater resources. Targeting has become a challenging endeavour because of complex interplay between varying climatic, geological, hydrological, physiographic elements. This study proposes hybrid RS, GIS, ANP method to delineate zones. The resource was evaluated using seven surface hydrological six subsurf...

This study assessed a lidar-based, object-oriented (segmentation) approach to forest volume and aboveground biomass modeling. The study area in the Piedmont physiographic region of Virginia is composed of temperate coniferous, deciduous, and mixed stands. Segmentation objects, hierarchical in terms of area and ranging from 0.035 to 5.632 ha/object, were created using a lidar-derived canopy heig...