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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 14.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Canadá

    Traditional approaches to ecological land classification (ELC) can be enhanced by integrating, a priori, data describing disturbances (natural and human), in addition to the usual vegetation, climate, and physical environment data. To develop this new ELC model, we studied an area of about 175,000� km² in the Abies balsamea–Betula papyrifera and Picea mariana-feathermoss bioclimatic domains of the boreal forest of Québec, in eastern Canada.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 2008
    Canadá

    Determining the feasibility of a large-scale afforestation program is one approach being investigated by the Government of Canada to increase Canada's potential to sequester carbon from the atmosphere. Large-scale afforestation, however, requires knowledge of where it is suitable to establish and grow trees. Spatial models based on Boolean logic and/or statistical models within a geographic information system may be used for this purpose, but empirical environmental data are often lacking, and the association of these data to land suitability is most often a subjective process.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Canadá, Estados Unidos de América

    We propose a framework to facilitate the evaluation of the impacts of shale gas infrastructures (well pads, roads, and pipelines) on land cover features, especially with regards to forest fragmentation. We used a geographic information system and realistic development scenarios largely inspired by the PA (United States) experience, but adapted to a region of QC (Canada) with an already fragmented forest cover and a high gas potential.

  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Canadá

    Understanding agricultural ecosystems and their complex interactions with the environment is important for improving agricultural sustainability and environmental protection. Developing the necessary understanding requires approaches that integrate multi-source geospatial data and interdisciplinary relationships at different spatial scales. In order to identify and delineate landscape units representing relatively homogenous biophysical properties and eco-environmental functions at different spatial scales, a hierarchical system of uniform management zones (UMZ) is proposed.

  5. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Canadá

    Climate change will cause major changes in ecosystems. Therefore, it is crucial that climate change policy consider the value of all services that are provided by watershed ecosystems. For this purpose, geospatial data and economic analysis are combined to determine a monetary value for wetland ecosystem goods and services (EGSs) in the watersheds of the Yamaska and Bécancour Rivers (Quebec, Canada). From published studies of wetland economic evaluations, we selected 51 relevant studies from 21 countries and performed a benefit transfer using meta-analysis.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Australia, Brasil, Canadá, Estados Unidos de América, India, Rusia, China

    Groundwater vulnerability assessment is an important task in water resources and land management. The most sophisticated among the vulnerability assessment techniques is the GIS-based DRASTIC model. However, despite its popularity, it is marred with excessive subjectivity glitches; little research has been conducted to address the shortcomings associated with this method. This study investigates various issues regarding the application of the GIS-based DRASTIC model through a critical review of relevant literatures.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 2010
    Canadá

    This paper describes a new model of sustainable development planning based on a case study of a successful planning process for the Great Bear Rainforest on Canada's west coast. The planning region is an area of international ecological significance that contains one-quarter of the world's remaining ancient coastal temperate rainforest. An innovative collaborative planning process was initiated in 1996 to develop a plan for the region that balances social, economic, and environmental values.

  8. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Canadá

    Traffic noise is becoming a more prominent fixture in urban environments as cities and highways expand to accommodate the growing human population. Birds, in particular, rely heavily on vocal communication and have recently been shown to change the structure of their signals in response to environmental noise. Our objective was to determine the impact of traffic noise on Red-winged Blackbird (Agelaius phoeniceus) song structure and song timing.

  9. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Canadá

    Effective ecological monitoring is imperative in a human-dominated world, as our ability to manage functioning ecosystems will depend on understanding biodiversity responses to anthropogenic impacts. Yet, most monitoring efforts have either been narrowly focused on particular sites, species and stressors — thus inadequately considering the cumulative effects of multiple, interacting impacts at scales of management relevance — or too unfocused to provide specific guidance.

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