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Displaying 311 - 315 of 1605impacts of shrimp farming on land use, employment and migration in Tumbes, northern Peru
Export-oriented shrimp aquaculture appeared in the coastal landscape of Peru in the late 1970s. Its rapid development has entailed both positive and negative environmental and socioeconomic impacts across the newly emerging shrimp farming territory of the Tumbes river delta. Here we combine ground surveys and interviews with remote sensing analysis of the transformed environment in order to characterize and quantify the nature, origin and scale of the environmental and social impacts caused by the intrusion of aquaculture.
Assessment of effects of best management practices on agricultural non-point source pollution in Xiangxi River watershed
Agricultural non-point source pollution (ANSP) is considered a major contributor to local water degradation in the Three Gorges Reservoir Area (TGRA) of China. The Xiangxi River, which is a first level anabranch of the Yangtze River, was selected for investigation of the effectiveness of selected best management measures (BMPs) to alleviate water pollution through analysis of several scenarios by SWAT (Soil and Water Assessment Tool).
Revisiting the forest transition theory with historical records and geospatial data: A case study from Mississippi (USA)
This study examines forest change processes, within the framework of forest transition theory (FTT), using Mississippi (USA) as a case study. The aim is to evaluate the assumption and theoretical basis of FTT with quantitative data, and to propose changes in forest management policy as a potential driver for reforestation. We compiled a number of historical records, geospatial data, and time series forest mapping products to reconstruct the last 100 years of forest trajectory. Forest changes are studied in relation to changes in society, over a range of temporal and spatial scales.
Environmental determinants of the spatial distribution of Alaria alata in Hungary
Alaria alata is a potential zoonotic parasite, which is widely distributed in Eurasia. To assess the risk of human infection, it is important to know the spatial distribution pattern of the parasite and factors influencing this pattern. To investigate these relationships, 1612 red fox (Vulpes vulpes) carcasses were randomly collected from the whole Hungarian territory, and the intestines were examined by sedimentation and counting technique. The spatial distribution of the parasite was highly clumped.
Social dimensions of market-based instruments: Introduction
This themed issue of Land Use Policy builds on the papers presented at an international symposium entitled Social Dimensions of Market-based Instruments, convened by the Charles Darwin University in Darwin, Australia, in November 2010. The symposium set out to review the extent to which market-based instruments were being employed as social policy tools in various contexts, what challenges achieving relevant social policy objectives posed, what trade-offs arose between environmental, social and economic objectives, and whether and how tensions could be resolved.