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Showing items 1 through 9 of 20.
  1. Library Resource
    Reports & Research
    December, 2009
    Angola, Liechtenstein, Bangladesh, United States of America, Congo, Comoros, Cameroon, Uzbekistan, Switzerland, Kenya, Zambia, Denmark, Rwanda, Philippines, Kyrgyzstan, Italy, Brazil, Tunisia, Argentina, Sudan, Papua New Guinea, Czech Republic

    Forests, trees and woodlands cover almost one-third of the Earth’s land area. They are a crucial source of food and income for more than a billion people around the globe. They provide a variety of wood and non-wood products and vital ecosystem services – preventing erosion from wind and water, preserving water quality, shading crops and livestock, absorbing carbon which contributes to countering climate change, and providing habitat for many species of plants and animals, thus helping to conserve the planet’s biological diversity.

  2. Library Resource
    Journal Articles & Books
    February, 2019
    Kenya, Burkina Faso, Bangladesh, Nigeria, Philippines, Mauritania, Argentina, China, Italy, Indonesia, Ghana, Congo, South Sudan, India, Senegal, Brazil

    The critical role of forests in climate change mitigation and adaptation is now widely recognized. Forests contribute significantly to climate change mitigation through their carbon sink and carbon storage functions. They play an essential role in reducing vulnerabilities and enhancing adaptation of people and ecosystems to climate change and climate variability, the negative impacts of which are becoming increasingly evident in many parts of the world.

  3. Library Resource
    Journal Articles & Books
    September, 2018
    Tanzania, Ecuador, Kenya, South Africa, Tajikistan, Chile, Zimbabwe, Namibia, Indonesia, Botswana, Australia, Bolivia, Austria, Argentina, India, Pakistan, Mexico, Mongolia

    La gestión sostenible de la vida silvestre es objeto de considerable atención en el debate internacional debido a su importancia para la conservación de la biodiversidad, la seguridad humana, los medios de subsistencia y la seguridad alimentaria. Las poblaciones locales han gestionado las especies silvestres durante milenios, incluso a través de la caza. En este número se presentan ejemplos suficientes para demostrar que en la era moderna también es factible la gestión sostenible de la vida silv estre.

  4. Library Resource
    Journal Articles & Books
    December, 2015
    United States of America, Rwanda, Gambia, Chile, Peru, Indonesia, Vanuatu, Jamaica, Italy, Costa Rica, Finland, Colombia, Kenya, Laos, Philippines, Malaysia, Cameroon, Tanzania, Trinidad and Tobago, Netherlands, Argentina, Bhutan, Brazil, Asia, Africa, Americas

    <i>Towards effective national forest funds</i> addresses the need for more information on the way NFFs work and how best to establish and manage them. It shares the lessons that have emerged from the establishment and management of NFFs with the aim of supporting countries in designing and operating NFFs effectively according to their specific needs and circumstances.

  5. Library Resource
    Journal Articles & Books
    December, 2015
    Burkina Faso, Honduras, Kenya, El Salvador, Guatemala, Zimbabwe, Canada, Congo, Costa Rica, Niger, Rwanda, Lesotho, Madagascar, Argentina, Brazil, Ghana

    La publication de ce numéro d’Unasylva coïncide avec deux événements marquants pour les forêts. Les 196 Parties à la Convention-cadre des Nations Unies sur les changements climatiques viennent de se réunir à la Conférence Paris climat 2015 en vue de négocier un accord qui soit en mesure de changer la donne en matière de changement climatique. Toujours à Paris, le Global Landscapes Forum 2015, Forum mondial sur les paysages, a été le théâtre de discussions de haut niveau portant sur la recherche et les politiques qui sous-tendent les questions d’utilisation des terres.

  6. Library Resource
    Journal Articles & Books
    December, 2009
    Switzerland, United States of America, Israel, Chile, China, Australia, Cyprus, Ghana, Malawi, Colombia, Thailand, Kenya, Morocco, Mauritius, South Africa, Kyrgyzstan, Romania, Argentina, India, Sudan, Barbados

    Insect pests, diseases and other biotic agents have considerable impacts on forests and the forest sector. They can adversely affect tree growth and the yield of wood and non-wood products. Damage caused by forest pests can significantly reduce wildlife habitat thereby reducing local biodiversity and species richness.

  7. Library Resource
    Journal Articles & Books
    December, 1977
    France, Nigeria, Spain, Zambia, Iraq, Australia, Côte d'Ivoire, Kenya, Jordan, Morocco, Syrian Arab Republic, Libya, Somalia, Madagascar, Tanzania, Botswana, Argentina, India, Sudan, Lebanon

    There is a urgent need for a better understanding of the risks of soil degradation and their geographical distribution as well as a better knowledge of where degradation occurs at present. it would be desirable to combine soil conservation activities with other elements for increasing crop production.Erosion, salinity and alkalinity and the loss of soil fertility seriously reduce the natural potential of soils to produce food fibres. During the meeting, many criteria to assess the various types of soil degradation were outlined by the experts.

  8. Library Resource
    Reports & Research
    December, 2007
    Nigeria, United States of America, Mali, China, Australia, Ethiopia, Niger, Kenya, Yemen, Syrian Arab Republic, Brazil, Argentina, India, Senegal, Sudan, Norway, Asia, Africa, Americas

    Este informe está dirigido a revisar y resumir la información existente sobre el secuestro de carbono, con el fin de analizar como los recursos disponibles y los programas específicos se pueden implementar en las tierras áridas que constituyen las regiones con mayor degradación del suelo en el mundo.

  9. Library Resource
    Journal Articles & Books
    December, 2009
    Liechtenstein, Fiji, Bangladesh, Honduras, Kenya, El Salvador, Chile, Micronesia, China, Guatemala, Australia, Austria, Venezuela, Guinea, Costa Rica, Colombia, Nepal, Argentina, India

    En muchas regiones del mundo, la disponibilidad y calidad del agua potable cada vez está más amenazada por su explotación excesiva, el mal uso y la contaminación. En este contexto, la relación entre los bosques y el agua debe recibir una gran prioridad. Las cuencas de captación forestales suministran una gran parte del agua destinada a satisfacer las necesidades domésticas, agrícolas, industriales y ecológicas, tanto en las zonas de río arriba como en las de río abajo.

  10. Library Resource
    Journal Articles & Books
    December, 1991
    France, Zambia, Afghanistan, Zimbabwe, Australia, Greece, Guinea, Ethiopia, Pakistan, Colombia, Panama, Kenya, Jordan, Philippines, Libya, Italy, Botswana, Netherlands, Argentina, Sudan, Europe, Asia, Africa, Northern America

    Extensive grazing is the predominant form of land use on at least a quarter of the world’s land surface, in which livestock are raised on food that comes mainly from rangelands. Extensive grazing differs from crop or forestry production, in which the produce remains in situ whilst growing. Evaluation for extensive grazing, unlike that for cropping or forestry, must take into account the production of both grazing forage, termed primary production, and the livestock that feed on this forage, termed secondary production.

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