This study explores an effective method for constructing a landscape model of characteristic rural towns. In this study, the pattern index towns is obtained by calculating total area, patch density, shape index, and average fractal dimension area At same time, calculates minimum function three-dimensional town cloud fusion transformation. uses to calculate 3D translation transformation, rotatio...

Impacts of habitat loss and fragmentation on distribution and population size of many taxa are well established. In contrast, less is known about the role of within-patch habitat quality for the spatial dynamics of species, even though within-patch habitat quality may substantially influence the dynamics of population networks. We studied occurrence patterns of two Orthopteran species in relati...

The northern latitudes have warmed by about 0.8 C since the early 1970s, but not all areas have warmed equally. Eurasia shows an overall warming trend, while North America exhibits warming at a lower rate and even a slight cooling trend during the last 50 years in the Eastern USA. We analyzed a recently developed satellite normalized di erence vegetation index (NDVI) data set (July 1981 to Dece...

Fractals hove been used recently to describe spatial patterns in mony iandscape-leve1 applicotions. One such appiication has been to measure the geometnk complexity of landscape features. This paper describes a modified fractal dimension to be used as a measure of distribution of Iandscape diversity in a classified GIS image. The resulting modified fractal dimension calculation consisientiy des...

Introduction: The dosimetric characteristics of patch sources including 32P, 90Y, 188Re and 166Ho, which are employed for radionuclide skin therapy, have been evaluated in current study Materials and Methods: The patch sources understudy were modeled by MCNPX Monte Carlo code and corresponding depth dose distribution, transverse dose profile and isodose curves...

the degradation rate of mediterranean steppes, especially in north africa is 1% per year, and this considered as high a rate of degradation. this study conducted in 2014 in the south slope of the al-jabal al-akhdar, northeast libya to quantify the vegetation recovery rate and assess selected vegetation indices (vis) for mapping rangelands degradation status using remote sensing technology. thro...

quantifying urban landscape is fundamental for monitoring and assessing ecological and socioeconomic consequences of urbanization. expansion of roads is a significant factor driving urban landscape change. the aim of this research is quantifying impacts of roads on isfahan city landscape. to achieve this aim, land use map of isfahan was created in 6 classes: urban, green spaces, agricultural, b...