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Displaying 1486 - 1490 of 1605Importance of edaphic, spatial and management factors for plant communities of field boundaries
Plant communities of 57 field boundaries, in four regions of Finland, were sampled for this study focusing on factors affecting species diversity and community composition. All the boundaries were buffer strips established following the guidance of an Agri-Environmental Support Scheme. Data on edaphic factors, boundary management practices and spatial coordinates were used as explanatory variables in the data analyses using variation partitioning by Redundancy Analysis and univariate statistics.
Relating soil carbon fractions to land use in sloping uplands in northern Thailand
In this study from Khun Samun Watershed in northern Thailand we investigate land use and soil carbon relationships in 99 sloping upland soils that pertain to soil degradation/conservation and carbon storage/loss. Approximately 35% of the variability in total soil carbon could be explained by the available quantitative and semi-quantitative information, primarily clay content and CEC, and to a lesser degree by factors concerning land management.
Determinants of private forest management decisions: A study on West Virginia NIPF landowners
The availability of timber in the United States depends largely on forest management and investment decisions of nonindustrial private forest landowners since they hold the largest share of forest land in the nation. Since NIPF landowners are so diverse, there is a need to better understand the determinants of their decisions so that policies could be in place to motivate them. A survey was carried out in 2005 to the nonindustrial private forest landowners of West Virginia to examine the factors affecting their forest management decisions.
Forest property rights in the frame of public policies and societal change
Property rights over natural resources became a distinct area of inquiry in environmental economics and policy in the last decades, but their role has not yet been investigated thoroughly. Transition countries represent an excellent material of analysis of various policies and institutional developments concerning the regime of use and management of natural resources. The processes of societal transformation had deep impacts on the forestry sector, entailing land reforms and subsequent changes to its institutional and organisational framework.
Soil seed bank evaluation along a degradation gradient in arid rangelands of the Somali region, eastern Ethiopia
The potential and regeneration capacity of soil seed banks in three eastern Ethiopian rangeland ecosystems (Asbuli grassland or arid grassland, Aydora open savanna or arid bush/grassland and Hurso closed savanna or arid bush land) were determined over a degradation gradient. Soil samples from 0.09m² blocks (100mm deep) were spread evenly in plastic containers in the greenhouse and studied over a 1-year period. The aboveground species composition was also compared. Sampling was from rangelands in excellent, good, moderate and poor conditions for each ecosystem.