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This report contributes to the aim of the International Union of Soil Sciences to put sustainable land management higher on the global agenda. The report is divided into three distinct sections:Part I discusses the global soils agenda and outlines experiences and strategies for sustainable land management. It also highlights challenges related to implementing this agenda globallyPart II presents summaries of papers on the development of international mechanisms and instruments for sustainable land management (SLM).
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Identification of Land Quality Indicators (LQIs) is a key requirement of sustainable land management. They are required to assess, monitor, and evaluate changes in the quality of land resources and environmental impacts. The Land Quality Indicator (LQI) program monitors the environment and the sector performance of managed ecosystems. The program is being developed on a national and regional scale, but it is also part of a larger global effort to improve natural resource management. The LQI program recommends addressing issues of land management by agroecological zones.
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Important hydrological changes, or generally water resources changes, are being observed in Serbia, as well as in many other parts of the world. Many national and international projects and studies address climate change and its impact on water resources. Some focus solely on the impact of climate change, while others also assess the impact of land use changes and/or changes in human use of water.
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The article analyses the impact of agricultural trade liberalisation on economic growth as well as on the welfare of rural livelihoods in developing countries through technological transformation in the agricultural sector. The article, based on existing literature, considers the background and reasons for the policy shift in developing economies away from agricultural protection and toward trade liberalisation. It attempts to shed light on the debate over the distributional consequences resulting from trade liberalisation.
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Green spaces considered natural remnants in urban environments play a key role in promoting environmental quality and forming a sustainable city. Nowadays, development of urban spaces has taken a hasty growth. In the meanwhile, the natural green spaces are severely damaged. The current study aims at investigating the trend of changes in green space of Tabriz City, the second large industrial city in Iran, on the basis of landscape ecology principles. In order to prepare the land-cover maps, Landsat TM and IRS LISS-III of the years 1989 and 2006 were applied.
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Humans have fundamentally altered global patterns of biodiversity and ecosystem processes. Surprisingly, existing systems for representing these global patterns, including biome classifications, either ignore humans altogether or simplify human influence into, at most, four categories. Here, we present the first characterization of terrestrial biomes based on global patterns of sustained, direct human interaction with ecosystems. Eighteen âanthropogenic biomesâ were identified through empirical analysis of global population, land use, and land cover.
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Artículos de revistas y libros
Oil exploitation and road development have strongly fragmented the coastal landscapes, leading to profound ecological consequences. The dynamic relationships between oil wells, roads, and landscape fragmentation indices in the Yellow River Delta, China were explored. Oil wells, roads and land cover were mapped from TM images in 1992, 2000, 2006, and 2009, respectively. Changes and relationships were compared among three selected typical sections using linear regression models.
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The frequency and extent of humanâinduced landâcover changes is escalating worldwide. Recurrent turnover of landâcover types will affect ecosystems over and above major, oneâtime changes (eg deforestation). Here, we show how a deeper appreciation of the temporal dynamics of landâcover change is needed to understand its effects on ecosystems.
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Despite being recognized as a key baseline dataset for many applications, especially those relating to biogeochemical cycles, land cover products in their current form are limiting. Typically they lack the thematic detail necessary for driving the models that depend upon them. This study has demonstrated the ability to produce a highly detailed (both spatially and thematically) land cover/land use dataset over Russia – by combining existing datasets into a hybrid information system.
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Artículos de revistas y libros
Sand dunes encroachment is a challenge that faces land development in North African countries. Movement of these dunes threatens cultivated lands, roads, and urban settlements. Geographic information system (GIS) provides a tool for cartographic modeling of risk of sand dunes encroachment. This study modeled the potential risk of sand dunes encroachment related to their terrain characteristics in the Western Desert of Egypt. The Food and Agricultural Organization's land cover map of Egypt derived from Landsat Thematic Mapper was used to locate the sand dunes bodies.
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