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Mostrando ítems 1 a 9 de 10.
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Publicación revisada por pares
China, Rusia, Estados Unidos de América
Understanding the impact of changes in cultivated land in terms of structure, distribution, and quantity on grain production potential (GPP) is essential for a sustainable land utilization strategy and food security. Cultivated land balance (CLB), as a critical policy aiming at protecting farmland in China, has greatly restricted the loss of cultivated land. However, changes in cultivated land were largely generated due to the land-use activities led by the CLB policy.
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Library Resource
Publicación revisada por pares
With the rapid development of urbanization and industrialization, land exploitation in China has caused a decrease of cultivated land, posing a threat to national food security. To achieve the goals of both economic development and cultivated land protection, China launched an urban–rural land replacement measure supported by a new land use policy of “increasing vs. decreasing balance” of construction land between urban and rural areas in 2008.
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Library Resource
Publicación revisada por pares
Since the early 20th century, “desert reclamation” has been synonymous with large-scale waterworks and irrigation. These techniques have made it possible to produce abundant crops in arid or semi-arid environments. The costs have often been externalized, with increased environmental productivity in the new croplands counterbalanced by increased aridity elsewhere. In this paper I consider whose interests are served by such projects, and what kinds of social constructions of the natural and human environment make them possible.
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Library Resource
Publicación revisada por pares
Indonesia, as an archipelagic nation, has about 150 million people (60%) living in coastal areas. Such communities are increasingly vulnerable to the effects of change, in the form of sea level rise and stronger, more intense storms. Population growth in coastal areas will also increase the disaster risk mainly because of climate change-related effects such as flooding, droughts, and tidal floods. This study examines the dynamic changes of urban population and urban villages in three decadal periods, from 1990, 2000, to 2010.
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Library Resource
Publicación revisada por pares
Berenty Reserve, a fully protected gallery forest beside the Mandrare River is renowned for its lemurs, but the continuous canopy of the main forest is shrinking, fragmenting and degrading. The aim of this study, before any restoration can be considered, is to investigate why canopy-cover is declining and define the forest’s vegetation status and composition. Our study includes analysis of tamarind age (the dominant species) and regeneration, forest extent, climate and soil.
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Library Resource
Publicación revisada por pares
In arid regions, oases ecosystems are fragile and sensitive to climate change, and water is the major limiting factor for environmental and socio-economic developments. Understanding the drivers of land use/cover change (LUCC) in arid regions is important for the development of management strategies to improve or prevent environmental deterioration and loss of natural resources.
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Library Resource
Publicación revisada por pares
Soil erosion by water has accelerated over recent decades due to non-sustainable land use practices resulting in substantial land degradation processes. Spatially explicit information on soil erosion is critical for the development and implementation of appropriate Soil and Water Conservation (SWC) measures.The objectives of this study were to estimate the magnitude of soil loss rate, assess the change of erosion risk, and elucidate their implication for SWC planning in the Gobele Watershed, East Hararghe Zone, Ethiopia.
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Library Resource
Publicación revisada por pares
This paper consists of a review of existing literature relating to Incorporated Land Groups in Papua New Guinea (PNG), followed by a case study of two urban incorporated land groups (ILGs) in the city of Lae. The paper is an attempt at assessing the sustainability of ILGs in the country. The challenges facing the ILGs have heightened public fears that the land groups may not be sustainable.
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Library Resource
Publicación revisada por pares
Despite scientific progress in operationalizing sustainable development (SD), it is still hampered by methodological challenges at the regional level. We developed a framework to analyse stakeholder based, SD targets for future land use, which are characterized by different impact levels and spatial references. The framework allows for the analysis of land use demands in the context of SD. We identified societal use targets in north-eastern Germany, particularly for the area type’s lowland fens and irrigation fields, represented through strategy documents.
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Library Resource
Publicación revisada por pares
Earth observation data can provide valuable assessments for monitoring the spatial extent of (un)sustainable urban growth of the world’s cities to better inform planning policy in reducing associated economic, social and environmental costs. Western Australia has witnessed rapid economic expansion since the turn of the century founded upon extensive natural resource extraction. Thus, Perth, the state capital of Western Australia, has encountered significant population and urban growth in response to the booming state economy.
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