Search results for "forest"
showing 10 items of 3780 documents
Elinympäristöjen tilan edistämisen priorisoinnin periaatteet ja menetelmä
2016
Effects of stump removal on soil decomposer communities in undisturbed patches of the forest floor
2011
Soil preparation after clear-cutting leads to fragmentation of forest floor and, consequently, changes the habitat of decomposers. Stump removal for bioenergy is further increasing the disturbance in the soil. We studied responses of decomposers to stump removal in boreal spruce forests during the first 4 years after clear felling in relation to mounding. Samples for each decomposer organism group were taken from undisturbed forest floor patches that are the main habitat for decomposers after forest regeneration and whose amount and size obviously differ between the treatments. Microbial biomasses and community structure, and the abundance of enchytraeids, were not found to be affected by t…
Data from: Choosy beetles: how host trees and southern boreal forest naturalness may determine dead wood beetle communities
2021
See methods section of paper for detailed information on dataset and sources; briefly, these .csv files includes numbers of each beetle species captured at all sites used in the project, as well as information about each site and about each species. Data from: Choosy beetles: how host trees and southern boreal forest naturalness may determine dead wood beetle communities Ryan C. Burner, Tone Birkemoe, Jörg G. Stephan, Lukas Drag, Jörg Muller, Otso Ovakainen, Mária Potterf, Olav Skarpaas, Tord Snall, Anne Sverdrup-Thygeson Forest Ecology and Management, 2021 From abstract of paper: Wood-living beetles make up a large proportion of forest biodiversity, and contribute to important ecosystem se…
Postfazione - Ci fu festa una notte nel bosco
2011
La protección de los bosques naturales a la luz del Derecho Ambiental Internacional y la constitución brasileña: ¿Serán capaces de salvar la Floresta…
2016
Este estudio objetiva elucidar las relaciones normativas sobre bosques naturales dentro de los diversos campos del Derecho Ambiental Internacional y del ordenamiento jurídico brasileño y proponer soluciones para aumentar la efectividad del control de la deforestación. Dado el carácter teórico del estudio se utilizaron las técnicas de investigación documental y bibliográfica. Inicialmente, fueron analizados la relevancia de los bosques naturales para el planeta y la humanidad; el régimen jurídico de los bosques en el ámbito de las convenciones de la biodiversidad, del cambio climático y la desertificación; y la rápida dilapidación del patrimonio forestal global y brasileño. A continuación, f…
Overland flow generation on hillslopes of complex topography: analytical Solutions
2007
The analytical solution of the overland flow equations developed by Agnese et al. (2001; Hydrological Processes15: 3225–3238) for rectangular straight hillslopes was extended to convergent and divergent surfaces and to concave and convex profiles. Towards this aim, the conical convergent and divergent surfaces are approximated by a trapezoidal shape, and the overland flow is assumed to be always one-dimensional. A simple ‘shape factor’ accounting for both planform geometry and profile shape was introduced: for each planform geometry, a brachistochrone profile was obtained by minimizing a functional containing a slope function of the profile. Minima shape factors are associated with brachist…
New national and regional bryophyte records, 33
2012
WOS: 000313348700006
Impact Assessment of Skidding Extraction: Effects on Physical and Chemical Properties of Forest Soils and on Maple Seedling Growing along the Skid Tr…
2019
Several studies investigated soil disturbances caused on skid trails by forest logging. However, there is still a lack of knowledge about the severity and the distance of disturbances along both sides from the trails. The aims of this study were: i) to investigate the changes in physical and chemical properties of soil along the sides of skidding trails
Farmland abandonment in Europe: Identification of drivers and indicators, and development of a composite indicator of risk
2015
Accounting for more than half of the European Union's (EU) territory, agriculture ensures food production, manages important natural resources and supports socio-economic development of rural areas. Moreover, it is estimated that 50% of all plant and animal species (including some of that are listed in the EU Habitat Directive) depend on agricultural practices. The continuation of appropriate agricultural land management is essential to ensure these primary functions. Avoidance of farmland abandonment is therefore an important rationale for the EU's Common Agricultural Policy which requires improved knowledge of this phenomenon at the European level. This study assesses the risk of farmland…
Eco-efficiency assessment of olive farms in Andalusia
2012
Abstract Olive farming represents an important source of income and employment in the rural areas of Andalusia (Spain), which is the most important olive oil-producing region in the world. Unfortunately, it also exerts significant environmental pressures with regard to soil erosion, use of polluting inputs, excessive water consumption and biodiversity reduction. This paper uses Data Envelopment Analysis (DEA) techniques and pressure distance functions to contribute a farm-level assessment of the eco-efficiency of a sample of 292 Andalusian olive farmers. We distinguish between managerial eco-efficiency and program eco-efficiency, the latter being associated to the different natural conditio…