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Mostrando ítems 1 a 9 de 2335.
  1. Library Resource

    Volume 9 Issue 3

    Publicación revisada por pares
    Marzo, 2020
    Estados Unidos de América

    Landscape architecture programs in the United States are assessed based on the quality of the professional education received by their students. Research is becoming an increasingly important part of the profession as evidence-based landscape architecture grows, and it is critical that university faculty provide information that can be used in professional practice to resolve important environmental and social issues.

  2. Library Resource

    Volume 9 Issue 3

    Publicación revisada por pares
    Marzo, 2020
    Australia, Alemania, Nueva Zelandia, Rusia, Suecia, Estados Unidos de América, Europa

    This opinion paper discusses urban lawns, the most common part of open green spaces and urban green infrastructures. It highlights both the ecosystem services and also disservices provided by urban lawns based on the authors’ experience of working within interdisciplinary research projects on lawns in different cities of Europe (Germany, Sweden and Russia), New Zealand (Christchurch), USA (Syracuse, NY) and Australia (Perth).

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 2013
    Kenya, Estados Unidos de América, África oriental, América Septentrional

    Biodiversity in rangelands is decreasing, due to intense utilization
    for livestock production and conversion of rangeland into cropland;
    yet the outlook of rangeland biodiversity has not been
    considered in view of future global demand for food. Here we
    assess the impact of future livestock production on the global
    rangelands area and their biodiversity. First we formalized existing
    knowledge about livestock grazing impacts on biodiversity,
    expressed in mean species abundance (MSA) of the original

  4. Library Resource
    Artículos de revistas y libros
    Agosto, 2014
    Francia, Reino Unido, Kenya, Estados Unidos de América, África oriental, América Septentrional, Europa septentrional, Europa occidental

    Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project – and avert – future declines.

  5. Library Resource
    Artículos de revistas y libros
    Diciembre, 2016
    Estados Unidos de América, América Septentrional

    Stream and riparian health is a major concern for state and federal land management agencies that are charged with oversight of extensive land holdings in the mountain west of the United States. Several federal agencies in the 1980s and 1990s determined that livestock grazing had adversely impacted a majority of federal lands in this region. In response, management was changed on grazing allotments to focus on stream system health.

  6. Library Resource
    Documentos de política y resúmenes
    Abril, 2019
    Ecuador, Estados Unidos de América

    Francisco Hidalgo[1]
     
    ¿Desde dónde analizar los resultados de las elecciones seccionales del 24 de marzo en el Ecuador?, mirarlos como una serie de acontecimientos con una lógica provincial o, pese a su ámbito seccional, desde una óptica desde las tendencias nacionales. Optamos en este artículo iniciar por lo segundo, y en un siguiente análisis abordaremos lo local.

  7. Library Resource

    Volume 8 Issue 12

    Publicación revisada por pares
    Diciembre, 2019
    Canadá, Europa

    Climate change may increase the importance of agriculture in the global Circumpolar North with potentially critical implications for pristine northern ecosystems and global biogeochemical cycles. With this in mind, a global online survey was conducted to understand northern agriculture and farmers’ perspective on environmental change north of 60° N.

  8. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    Australia, Estados Unidos de América, Reino Unido, Alemania, China

    Land degradation is a global issue receiving much attention currently. In order to objectively reveal the research situation of land degradation, bibliometrix and biblioshiny software packages have been used to conduct data mining and quantitative analysis on research papers in the fields of land degradation during 1990–2019 (data update time was 8 April 2019) in the Web of Science core collection database. The results show that: (1) during the past 20 years, the number of papers on land degradation has increased.

  9. News
    Foto: DW/J. Beck
    3 Enero 2020
    África
    Mozambique
    África austral
    Ataques de insurgentes aterrorizam a província de Cabo Delgado há mais de dois anos. O economista moçambicano João Mosca identifica um interesse não declarado na instabilidade da região; rica em recursos minerais.
     
  10. Library Resource

    Volume 8 Issue 10

    Publicación revisada por pares
    Octubre, 2019
    México, Estados Unidos de América

    This paper presents a synopsis of the challenges and limitations presented by existing and emerging land use/land cover (LULC) digital data sets when used to analyze the extent, habitat quality, and LULC changes of the monarch (Danaus plexippus) migratory habitat across the United States of America (US) and Mexico. First, the characteristics, state of the knowledge, and issues related to this habitat are presented.

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