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Displaying 641 - 645 of 1605impact of land management and abandonment on soil enzymatic activity, glomalin content and aggregate stability
Selected environments ranging from cultivated soils under vines and olive groves to sequential abandonment with forest, meadow and scrub cover were investigated for their impact on relevant physical and chemical properties in the shallow soils of the Cap de Creus Peninsula (NE Spain). Both insufficient agricultural practices and periodical wildfire occurrence in abandoned areas were focused as components triggering degradation processes. Despite that, less fire affected soils under Erica scrubs or meadows were found to be more active in carbon preservation potential.
Forest based biomass for energy in Uganda: Stakeholder dynamics in feedstock production
Insufficient energy supply and low levels of development are closely linked. Both are major issues in Uganda where growing demand cannot be met by overstretched infrastructure and the majority still rely on traditional biomass use. Uganda's renewable energy policy focuses on decentralised sources including modern biomass. In this paper, stakeholder dynamics and potential socio-economic impacts of eight modern bioenergy feedstock production models in Uganda are considered, and key considerations for future planning provided.
Systems scale assessment of the sustainability implications of emerging green initiatives
This paper demonstrates a systems framework for assessment of environmental impacts from ‘green initiatives’, through a case study of meso-scale, anthropogenic–biogenic interactions. The following cross-sectoral green initiatives, combining the emerging trends in the North East region of the United Kingdom, have been considered – increasing the vegetation cover; decarbonising road transport; decentralising energy production through biomass plants.
Land, power and peace: Tenure formalization, agricultural reform, and livelihood insecurity in rural Rwanda
Land tenure and agricultural reforms are essential components of postwar development. The importance of land use and management systems to livelihood stability and economic growth is especially relevant in Rwanda, where eighty per cent of the population depends on subsistence agriculture in a rural system plagued by conflict over holdings and decreasing production.
Conservation Practices for Climate Change Adaptation
The threat of climate change is a great challenge to sustainable land management (USDA-NRCS, 2010a). Several publications have reported that over the last few decades, rainfall intensities have increased in many parts of the world, including in the United States. Without good, productive soils and the ecosystem services provided by them, the survival of our species will be in jeopardy. The future changes in climate that will drive erosion processes will significantly impact soil erosion rates, with higher projected erosion rates for the United States.