Passar para o conteúdo principal

page search

Displaying 3805 - 3816 of 5230

Functional land management for managing soil functions – the trade-off between primary productivity and carbon storage

Conference Papers & Reports
Dezembro, 2015
Irlanda
Reino Unido
Letónia

This research provides a first example of a practical application of the concept relevant to policy stakeholders, wherein the trade-off between two soil functions – ‘primary productivity’ and ‘carbon cycling and storage’ is assessed. This is measured in response to the intervention of land drainage systems applied to poorly and imperfectly draining managed grasslands in Ireland. This trade-off is examined spatially using integrated mapping within ArcGIS. National level datasets on land use were combined with an indicative drainage map.

Contrasting influences of stormflow and baseflow pathways on nitrogen and phosphorus export from an urban watershed

Journal Articles & Books
Dezembro, 2014
Estados Unidos

Eutrophication of urban surface waters from excess nitrogen (N) and phosphorus (P) inputs remains a major issue in water quality management. Although much research has focused on understanding loading of nutrients from storm events, there has been little research to understand the contribution of baseflow, the water moving through storm drains between rainfall events. We investigated the relative contributions of baseflow versus stormflow for loading of water and nutrients (various forms of N and P) by the storm drain network in six urban sub-watersheds in St. Paul, MN, USA.

Conserving and promoting evenness: organic farming and fire‐based wildland management as case studies

Journal Articles & Books
Dezembro, 2012

Healthy ecosystems include many species (high richness) with similar abundances (high evenness). Thus, both aspects of biodiversity are worthy of conservation. Simultaneously conserving richness and evenness might be difficult, however, if, for example, the restoration of previously absent species to low densities brings a cost in reduced evenness. Using meta‐analysis, we searched for benefits to biodiversity following adoption of two common land‐management schemes: the implementation of organic practices by farmers and of controlled burning by natural‐land managers.

Integrating Land Market Feedbacks into Conservation Planning--A Mathematical Programming Approach

Journal Articles & Books
Dezembro, 2011

Nature reserves are often designated ad hoc. Despite increasing conservation efforts, loss of biodiversity is still accelerating. Considering land scarcity and demand for alternative uses, efficiency in conservation strongly correlates with efficiency in land allocation. Systematic conservation planning can effectively prioritize conservation activities. Previous studies minimize opportunity costs for given conservation targets. However, these studies assume constant marginal costs of habitat protection.

Process of recognizing the local potentials as a basis for sustainable development

Policy Papers & Briefs
Dezembro, 2011
Eslovênia

The article discusses the process of recognizing the local developmental and human potentials in the pilot area of Pohorje, Slovenia. Special emphasis herein is given to the need of stakeholder participation strategic plan. In the pilot area, the theoretical model was tested. As we are dealing with a wooded area, the role of forestry is highly significant in this respect, and it has been even est

ISIP - a web-based information system on integrated crop production in Germany

Conference Papers & Reports
Dezembro, 2003
Alemanha

In modern agriculture the demand for solutions for complex problems, e.g. the optimisation of decision - making in integrated crop production, is strongly increasing. To obtain all relevant information for decision - making farmers or extension officers up to now need access to a multitude of databanks offered by different providers. In 2001 a project, funded by the German Foundation of Environmen

Rapidly restoring biological soil crusts and ecosystem functions in a severely disturbed desert ecosystem

Journal Articles & Books
Dezembro, 2016

Restoring biological soil crusts (biocrusts) in degraded drylands can contribute to recovery of ecosystem functions that have global implications, including erosion resistance and nutrient cycling. To examine techniques for restoring biocrusts, we conducted a replicated, factorial experiment on recently abandoned road surfaces by applying biocrust inoculation (salvaged and stored dry for two years), salvaged topsoil, an abiotic soil amendment (wood shavings), and planting of a dominant perennial shrub (Ambrosia dumosa).

Evaluation of field wetlands for mitigation of diffuse pollution from agriculture: Sediment retention, cost and effectiveness

Journal Articles & Books
Dezembro, 2012

Diffuse pollution, and the contribution from agriculture in particular, has become increasingly important as pollution from point sources has been addressed by wastewater treatment. Land management approaches, such as construction of field wetlands, provide one group of mitigation options available to farmers. Although field wetlands are widely used for diffuse pollution control in temperate environments worldwide, there is a shortage of evidence for the effectiveness and viability of these mitigation options in the UK.

Assessing climate change impacts on the ecohydrology of the Jinghe River basin in the Loess Plateau, China

Journal Articles & Books
Dezembro, 2013
China

Quantifying the impacts of climate change on the hydrology and ecosystem is important in the study of the Loess Plateau, China, which is well known for its high erosion rates and ecosystem sensitivity to global change. A distributed ecohydrological model was developed and applied in the Jinghe River basin of the Loess Plateau. This model couples the vegetation model, BIOME BioGeochemicalCycles (BIOME-BGC) and the distributed hydrological model, Water and Energy transfer Process in Large river basins (WEP-L).

New partnerships for managing large desert landscapes: experiences from the Martu Living Deserts Project

Journal Articles & Books
Dezembro, 2015
Austrália

Native fauna in Australia’s arid zone has declined significantly since European settlement; however, Martu country in the Western Desert of Western Australia retains a diversity of iconic and threatened species that were once more widespread. An innovative partnership between The Nature Conservancy, BHP Billiton and the Martu people (represented by Kanyirninpa Jukurrpa – KJ) is achieving positive social, cultural, economic and environmental outcomes, which builds on funding from the Australian Government for land management on Martu country.