The present study describes the contribution of geomatic science in mapping and determining factors influencing spatial distribution Juniperus thurifera high mountains Azilal, Morocco. methodology adopted is based on use a Landsat 8 OLI satellite image to determine J. WorldClim database extract climat conditions.The Digital Elevation Model (DEM) 30 m resolution was used derive topographic param...

northern khorasan province is located in north-east iran. according to demarton coefficient, it is a semiarid region. arid and semi-arid or subhumid zones are characterized by temperature variations, low and erratic rainfall, periodic droughts and different associations of vegetative cover and soils. this article looks at current dry lands and general guidelines for finding the best area for dr...

Considering three sites under different climate conditions (arid, semi-arid, and subhumid), this study aims to use the vadose-zone water stable isotope profiles estimate groundwater recharge rate. High-resolution vertical subsurface soil sampling along vadose zone of investigated was conducted. The collected samples were analysed determine their ratios (δ2H δ18O) that used with piston displacem...

Mangroves are one of the few woody ecosystems that grow in hot-arid climates. They can survive extreme conditions low precipitation, high solar radiation, wide temperature fluctuations and hypersalinity. These unique mangroves have distinct geomorphology, hydrology, forest structure, tree physiology, soil biogeochemistry. In this review, supported by field data from Australia Mexico, we explore...

The dry subtropics are subject to a rapid expansion of crops and pastures over vast areas of natural woodlands and savannas. In this paper, we explored the effect of this transformation on vegetation productivity (magnitude, and seasonal and long-term variability) along aridity gradients which span from semiarid to subhumid conditions, considering exclusively those areas with summer rains (>66%...

Patterns of plant distribution by palaeoenvironment were examined across the Pennsylvanian-Permian transition in North-Central Texas. Stratigraphically recurrent packages of distinct lithofacies, representing different habitats, contain qualitatively and quantitatively different macrofloras and microfloras. The species pools demonstrate niche conservatism, remaining closely tied to specific hab...

Bee keeping is indispensable to global food production. It is an alternate income source, especially in rural underdeveloped African settlements, and an important forest conservation incentive. However, dwindling honeybee colonies around the world are attributed to pests and diseases whose spatial distribution and influences are not well established. In this study, we used remotely sensed data ...

Abstract Thornthwaite climate classification indices are essential to interpret types in the state of pantanal biome (Mato Grosso do Sul), simplifying calculation process and interpretation climatological water balance by farmers. However, there few studies found literature that characterize pantanel different climatic scenarios. We seek assess change using humidity index biome. used historical...

It has been proposed that aridity and grazing are convergent selective forces: each one selects for traits conferring resistance to both. However, this conceptual model has not yet been experimentally validated. The aim of this work was to experimentally evaluate the effect of aridity and grazing, as selective forces, on drought and grazing resistance of populations of Trichloris crinita, a nat...