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Displaying 556 - 560 of 1605Relative sea-level rise in the Basque coast (N Spain): Different environmental consequences on the coastal area
Short sediment cores taken from (i) a recently regenerated salt marsh (Plentzia estuary), (ii) an incipient marsh and (iii) a pristine marsh (Urdaibai estuary), have been interpreted for evidence of environmental impacts and sea-level change on the basis of microfaunal and geochemical determinations and historical land management data. Under the current relative sea-level rise scenario, it might be expected that salt marsh ecosystems lose their ability to keep up with tidal flooding and drown following a transgressional pattern where marsh vegetation replaces woody plant species.
Strategies to increase wheat production in the water scarce Karkheh River Basin, Iran
Two strategies are assessed to increase wheat production in the water-scarce Karkheh River Basin (KRB) in Iran to meet targets by the year 2025. The strategies proposed are (a) to increase yields in the current irrigated and rainfed wheat areas and (b) to increase the area under rainfed wheat through land conversion. Crop water consumption, based on satellite remote sensing and crop yield data, was used to estimate crop water productivity (CWP) in irrigated and rainfed wheat areas in five sub-basins.
Variability of Soil Organic Carbon stocks under different land uses: A study in an afro-montane landscape in southwestern Uganda
We explore and compare quantities and patterns of Soil Organic Carbon (SOC) in protected forest and neighboring land around Bwindi Impenetrable National Park (a mountain protected area in Southwestern Uganda). We assessed paired sites of natural forest and major land uses (potato, tea and grazing lands) converted between 1973 and 2010. These pairings were replicated at three altitudinal zones. Plots (20m by 50m) were demarcated within each site. Five composite soil and core samples were obtained from 0 to 15cm (top-soil) and 15–30cm (sub-soil) at each plot.
Conflict resolution through collaboration: Preconditions and limitations in forest and nature conservation controversies
Increasing competition over the world's forest resources will likely aggravate conflict, though conflict should not be seen as bad per se. As the challenge is to develop institutions and practices capable of handling conflict constructively, various collaborative approaches involving disputing actors are evolving worldwide. In Sweden, most such approaches pertain to protected areas and few involve commercial forestry.
Land demand for ethanol production
Several key indicators of the sustainability of biofuels are related to the land used to produce the feedstock.