We present the diversity of Asteraceae in Arequipa Region southern Peru, an area strongly influenced by volcanism, which has given rise to different soil types and determined a very wide bioclimatic vegetational zonation. distribution endemisms Peru Arequipa, dry puna. For this purpose, we have used methodology Rivas-Martínez, characteristic soils each collection point, distance localities from...

Ecosystems at coastal terrestrial–aquatic interfaces play a significant role in global biogeochemical cycles. In this study, we aimed to characterize wetlands with particular focus on the co-variability between plant dynamics, topography, soil, and other environmental factors. We proposed functional zonation approach based machine learning clustering identify spatial regions, i.e., zones that c...

subalpine rangeland as a rara avis ecosystem is very important because ofecological features. consistency and resistance of this ecosystem is so frangible and itsnatural equilibrium is instable due to the effects of biotic and abiotic factors. the landslideas one of negative consequences in upland area is seen in masoleh watershed (north ofiran). this study has investigated the roles of biotic ...

different methods exist for the zonation of oil reservoirs based on petrophysical data and well logs. among them are: permeability-porosity cross polt, pickett and soder and gill methods. in this study a statistical zonation technique has been used for the marun and pazanan oil reservoirs in iran based on effective porosity, density, sonic, neutron and resistivity data. petrophysical interpreta...

This study performs district and local administrative level multi-hazard zonation of Nepal. As multiple natural hazards are frequent, their losses enormous, maps can provide important insights before the occurrence so that effective countermeasures preparedness efforts be designed implemented. To this end, weightage-based Nepal is performed considering 27,482 independent hazard events. We consi...

1. introduction generally, landslide studies include process identification, risk analysis and landslide risk prediction (taleby and ezaddoost, 2012). nowadays, there are different methods for landslide simulation such as statistical, descriptive and process-based approaches. however, most studies in iran are based on statistical and descriptive methods (taleby and ezaddoost, 2012). landslide z...

The plain east of the Neusiedler See, the “Seewinkel” (Fig. 1), is one of the most important biodiversity hot-spot regions in Austria. A number of factors contribute to its richness: (1) The area is situated geographically within the Hungarian plain, i.e. open towards the east but isolated from the west by several mountain ridges. Thus, many organisms with a Central Asian or ancient Mediterrane...