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Displaying 471 - 475 of 1605Common property protected areas: Community control in forest conservation
This paper examines the role of property rights and community control in promoting forest conservation, and extends the classic framework of the bundles of property rights to non-consumptive resources and ecosystem services. Common property resources are first contrasted with protected areas, and then combined to develop a conceptual framework for common property protected areas (CPPA). A case study of a communally owned forest reserve in Costa Rica shows how the CPPA model identifies various stakeholders and their roles, rights and responsibilities.
Diversity of arbuscular mycorrhizal fungi in the rhizosphere of Asteriscus maritimus (L.) Less., a representative plant species in arid and saline Mediterranean ecosystems
Native arbuscular mycorrhizal fungi (AMF) from saline areas could be a critical issue for success in recovering areas affected by salinity, either in natural environments or in agricultural lands. Despite its important role, there is little information on the distribution and abundance of the different mycorrhizal associations in saline environments in European Mediterranean areas. In the present study the community of AMF is investigated in the rhizosphere of a representative plant species adapted to saline Mediterranean areas, Asteriscus maritimus.
Can intra-aggregate pore structures affect the aggregate's effectiveness in protecting carbon?
Aggregates are known to provide physical protection to soil organic matter shielding it from rapid decomposition. Spatial arrangement and size distribution of intra-aggregate pores play an important role in this process.
Organic matter fraction and pools of phosphorus as indicators of the impact of land use in the Amazonian periphery
The unsustainable use of the soil of the deforested area at the Amazonian border is one of the greatest threats to the rainforest. Among the causes of land degradation in the humid tropics are phosphorus depletion (P), the decrease of soil organic matter (SOM) and the loss of basic cations.
Native plant resources to optimize the performances of forest rehabilitation in Mediterranean and tropical environment: Some examples of nursing plant species that improve the soil mycorrhizal potential
The overexploitation of natural resources, resulting in an increased need for arable lands by local populations, causes a serious dysfunction in the soil's biological functioning (mineral deficiency, salt stress, etc.). This dysfunction, worsened by the climatic conditions (drought), requires the implementation of ecological engineering strategies allowing the rehabilitation of degraded areas through the restoration of essential ecological services.