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Displaying 891 - 895 of 1605Paired-site approach for studying soil organic carbon dynamics in a Mediterranean semiarid environment
This work investigated the effects of land cover and land-use change (LUC) on the ability of a soil to store carbon (C) and reduce carbon dioxide (CO₂) emissions, in a Mediterranean area. Using a paired-site approach, we estimated the effect of land-cover change on the C stock from 1972 to 2008 in a natural reserve (Grotta di Santa Ninfa) in western Sicily. We selected 15 paired sites representative of five LUCs.
Impacts of winter hay feeding on pasture soils and plants
In temperate regions, feeding livestock year round on pasture is usually limited by weather conditions and livestock must be fed hay, or other stored feeds, at least part of the year when pasture forage runs out. On many farms, hay must be fed during winter and hay feeding is typically confined to pastures that are sacrificed for this purpose. The concentrated use of pasture during winter hay feeding could negatively impact subsequent forage production from soil compaction and possibly create water quality degradation from manure runoff.
Comprehensive evaluation of the climate-change implications of shifting land use between forest and grassland: New Zealand as a case study
The transition of land between forest and grassland has important implications for greenhouse gas emissions and removals. In this paper, we use New Zealand as a case study to comprehensively assess, compare and quantify the net climate change impact of shifting land use between temperate forest and grassland. Forests store large amounts of carbon in their biomass, whereas grasslands contain relatively little biomass carbon. These biomass changes tend to dominate the carbon balance under land-use change.
Assessing the impacts of economic and climate changes on land-use in mountain regions: A spatial dynamic modeling approach
Future land-use changes are predicted to be influenced by both climate-driven environmental changes and concomitant changes in local economic conditions. Assessing the impact of climate change on ecosystems, and the goods and services that they provide, therefore requires an understanding of the dynamic link between land-cover, ecosystem services and economic-driven land-use decisions. The economic land allocation model (ALUAM) simulates the competition between forest and a range of agricultural land-uses to estimate land-use conversions in a spatially explicit manner at high resolution.
Effect of land management and Prosopis juliflora (Sw.) DC trees on soil microbial community and enzymatic activities in intensive silvopastoral systems of Colombia
Livestock production in Latin America has replaced tropical dry forests with conventional monocultures pastures (CP) that have degraded soils. As an alternative to CP, intensive silvopastoral systems (ISS) have been developed with multi-canopied vegetation that mimics native forest (F). The litter inputs and year-round presence of the tree rhizosphere in ISS, contribute to the formation of “fertile islands,” which is expected to impact biological activity and crop productivity.