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Displaying 461 - 465 of 1605Impacts of long-term soil and water conservation on agricultural productivity: The case of Anjenie watershed, Ethiopia
Over the last three decades, many soil and water conservation projects have been implemented in various parts of eastern and southern Africa to control land degradation, and improve land productivity, especially under ‘catchment approach’ initiatives of the 1980s. In Ethiopia, many of these soil conservation projects were implemented following the severe drought of 1974.
Effects of land markets and land management on ecosystem function: A framework for modelling exurban land-change
This paper presents the conceptual design and application of a new land-change modelling framework that represents geographical, sociological, economic, and ecological aspects of a land system. The framework provides an overarching design that can be extended into specific model implementations to evaluate how policy, land-management preferences, and land-market dynamics affect (and are affected by) land-use and land-cover change patterns and subsequent carbon storage and flux.
Trends in the use of landscape spatial metrics as landscape indicators: A review
The paper gives an overview on the trends in the usage of landscape metrics as indicators for: land use changes, habitat functions (biodiversity, habitats), landscape regulating functions (fire control, microclimate control, etc.), and information functions (landscape aesthetics). We reviewed papers published in international peer-reviewed journals that are indexed by the Institute of Science Information (ISI) Web of Knowledge from 2000 to 2010. The terms “landscape metrics”, “landscape indexes” and “landscape indices” were searched.
Watershed ecosystem modeling of land-use impacts on water quality
Sustaining freshwater systems in the face of rapid changes in land use continue to be a major challenge in lake watersheds. Lake Egirdir is a major freshwater lake in Turkey and is significant in supporting several ecosystem services of the region. The nutrient loading from both point and nonpoint sources has reduced the quality of the tributaries and the lake ecosystem. There is a need for comprehensive modeling of strategies to protect the lake and watershed ecosystems.
tool for simulation and geo-animation of wildfires with fuel editing and hotspot monitoring capabilities
FLogA (Fire Logic Animation) is a set of methods and an interactive, Web-based, user-friendly software tool which allows the user to draw a forest area on the map anywhere in Europe, insert fire ignition points, generate on the fly all input data layers required for a wildfire simulation, and then simulate and animate the behavior of the evolving fireline under different weather conditions. FLogA utilizes only publicly available non-proprietary data, software libraries and Web services. It adopts a distributed, open, service oriented architecture that is easy to maintain and extend.