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Displaying 901 - 905 of 1605Changes in land use, land tenure, and landscape fragmentation in the Tijuana River Watershed following reform of the ejido sector
Changes in land use and land tenure can influence both physical fragmentation and ownership fragmentation of landscapes, with implications for biodiversity. In this study, we evaluated changes in land use and land tenure in the Tijuana River Watershed, a region of high biodiversity and endemism, following the implementation of a new Agrarian Law which allowed for privatization and sales of communal land (ejidos) beginning in 1992. In order to understand changes in land use and cover, we constructed maps from aerial photographs and Aster images and measured changes between 1994 and 2005.
Mapping ecosystem service supply, demand and budgets
Among the main effects of human activities on the environment are land use and resulting land cover changes. Such changes impact the capacity of ecosystems to provide goods and services to the human society. This supply of multiple goods and services by nature should match the demands of the society, if self-sustaining human–environmental systems and a sustainable utilization of natural capital are to be achieved. To describe respective states and dynamics, appropriate indicators and data for their quantification, including quantitative and qualitative assessments, are needed.
REDD+ and rural livelihoods
Focusing on incentive schemes that induce participation in land-use activities to supply environmental services, this paper examines the potential impacts of REDD+ on livelihoods, in particular with respect to incomes and poverty alleviation. Two case studies, each at a different scale, are presented. First, the N’hambita Community Carbon Project in Mozambique, a REDD+ project, promoted agro-forestry and reforestation activities along with alternative livelihoods.
Spatial complexity and ecosystem services in rural landscapes
Despite general agreement on antagonist relationships between ecosystems capacity to simultaneously sustain the availability of regulating services and agricultural production, it is not clear how these tradeoffs operate in response to complexity loss at the rural landscapes level. Here we present a novel evaluation framework of ecosystem services (ES) and pose different response models to landscape complexity.
Delphi-based change assessment in ecosystem service values to support strategic spatial planning in Italian landscapes
Most impacts on providing ecosystem services (ESs) are related to land use changes that may cause ecosystem fragmentation and loss of ecosystem functions. Spatial planning, focusing on sustainable landscape development, should consider the local potential for providing ESs as well possible impacts due to land use changes. The results of a large number of recent studies on ES assessment are difficult to replicate and integrate into landscape planning or definition of land use policies.