In early 1999, about when this article will hit the press, INTRODUCTION NASA is scheduled to launch its first Earth Observing The physical and physiological parameters of vegetation satellite System (EOS) with array of instruments for pre(leaf area, biomass, physiological functioning, etc.) may cise, scientific, remote sensing of the Earth land, ocean, be obtained from satellite remote sensing....

the purpose of this study was to investigate vegetation dynamics and range conditions considering the climatic conditions and soil properties in doolat gharin in the south of isfahan province of an area equal to 25 square kilometer. for this purpose, after determining vegetation types and associated species, the type of rangeland utilization, grazing season, the type of livestock and other rele...

In addition to patch-level attributes (i.e., area and isolation), the nature of land cover between habitat patches (the matrix) may drive colonization and extinction dynamics in fragmented landscapes. Despite a long-standing recognition of matrix effects in fragmented systems, an understanding of the relative impacts of different types of land cover on patterns and dynamics of species occurrenc...

Climate warming affects permafrost soil carbon pools in two opposing ways: enhanced vegetation growth leads to higher carbon inputs to the soil, whereas permafrost melting accelerates decomposition and hence carbon release. Here, we study the spatial and temporal dynamics of these two processes under scenarios of climate change and evaluate their influence on the carbon balance of the permafros...

The Amazon basin is characterized by a strong interplay between the atmosphere and vegetation. Anthropogenic land use and land cover change (LULCC) affects vegetation and the exchange of energy and water with the atmosphere. Here we have assessed potential LULCC impacts on climate and natural vegetation dynamics over South America with a regional Earth system model that also accounts for vegeta...

Drylands are characterised by patchy vegetation, erodible surfaces and erosive aeolian processes. Empirical and modelling studies have shown that vegetation elements provide drag on the overlying airflow, thus affecting wind velocity profiles and altering erosive dynamics on desert surfaces. However, these dynamics are significantly complicated by a variety of factors, including turbulence, and...

1 School of Environmental Systems Engineering, The University of Western Australia, Australia 2 Centre for Water Research, The University of Western Australia, Australia 3 Environmental Biology Group, Research School of Biological Sciences & Research School of Earth Sciences, The Australian National University, Canberra, Australia 4 School of Geography and Environmental Science, Monash Universi...