..........................................................................................................45 INTRODUCTION .................................................................................................46 METHODS ............................................................................................................51 RESULTS ...................................................

Rainfall, soil moisture, increasing temperature and changes in vegetation cover are the most important parameters effecting drought. Therefore, analysis of vegetation fraction and soil spectral signature, especially in red and infra red bands, are essential in drought estimation using remote sensing. In this study, Modified Perpendicular Drought Index (MPDI), which uses Vegetation Fraction (VF)...

rangeland ecosystem contains various patches with different functions. structural and functional characteristics of rangeland patches are changed by management practices and can be used to interpret management effects. the structural and functional characteristics of fertilized patches in two rangeland ecosystems of ghareh ghir and maraveh tapeh were measured and analyzed in this study. a group...

We conducted a 5-year study on the impact of nutrients, depending on stream and season. grazing on stream-channel bare ground and erosion, and a © CSA 3-year study of cattle-trail erosion on intermittent stream channels draining grazed oak (Quercus)-woodland 450. Correlations of stocking with the cryptogamic soil watersheds. These studies were conducted on the San crust of a semi-arid rangeland...

Dear Editor, Neonatal screening is a process in which infants are screened for various inborn disorders that may possibly lead to early diagnosis and the prevention of the imperative disability and distress caused later on as a result of congenital and/or inherited diseases.1,2 In numerous countries, the screening process lead to the detection of certain congenital diseases, such as Phenylketon...