Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 41.
  1. Library Resource

    Land

    Publication évaluée par des pairs
    janvier, 2023
    Tunisie

    Soil erosion is an important environmental problem that can have various negative consequences, such as land degradation, which affects sustainable development and agricultural production, especially in developing countries like Tunisia. Moreover, soil erosion is a major problem around the world because of its effects on soil fertility by nutriment loss and siltation in water bodies. Apart from this, soil erosion by water is the most serious type of land loss in several regions both locally and globally.

  2. Library Resource

    Land

    Publication évaluée par des pairs
    janvier, 2023
    Tunisie

    Soil erosion is an important environmental problem that can have various negative consequences, such as land degradation, which affects sustainable development and agricultural production, especially in developing countries like Tunisia. Moreover, soil erosion is a major problem around the world because of its effects on soil fertility by nutriment loss and siltation in water bodies. Apart from this, soil erosion by water is the most serious type of land loss in several regions both locally and globally.

  3. Library Resource

    Volume 10 Issue 3

    Publication évaluée par des pairs
    mars, 2021
    Tunisie

    Natural rangelands occupy about 5.5 million hectares of Tunisia’s landmass, and 38% of this area is in Tataouine governorate. Although efforts towards natural restoration are increasing rapidly as a result of restoration projects, the area of degraded rangelands has continued to expand and the severity of desertification has continued to intensify. Any damage caused by disturbances, such as grazing and recurrent drought, may be masked by a return of favorable rainfall conditions.

  4. Library Resource
    Articles et Livres
    décembre, 2016
    Algérie, Maroc, Tunisie

    States of ecological maturity and temporal trends of drylands in Morocco, Algeria and Tunisia north of 28 N are reported for 1998–2008. The input data were Normalized Difference Vegetation Index databases and corresponding climate fields, at a spatial resolution of 1 km and a temporal resolution of one month. States convey opposing dynamics of human exploitation and ecological succession. They were identified synchronically for the full period by comparing each location to all other locations in the study area under equivalent aridity.

  5. Library Resource
    Matériels institutionnels et promotionnels
    mars, 2014
    Afrique septentrionale, Maroc, Tunisie, Asie méridionale, Iran, Asie occidentale, Jordanie, Yémen

    This document is a synthesis of outcomes from a knowledge process that was a collaborative effort involving researchers, scientists, and technicians from Iran, Jordan, Morocco, Tunisia, and Yemen.

  6. Library Resource
    Rapports et recherches
    juin, 2015
    Afrique septentrionale, Tunisie

    List of Participant to the stakeholder meeting held in Tunis and aimed at establishing a processes for sustainable collective rangeland management and governance

  7. Library Resource
    Matériels institutionnels et promotionnels
    juin, 2015
    Afrique septentrionale, Tunisie

    Presentation made by Jutta werner during the stakeholder meeting held in Tunis and aimed at developing sound policies that will enable implementation of governance of rangelands (collective action for sustainable pastoralism)

  8. Library Resource
    Rapports et recherches
    octobre, 2017
    Tunisie, Afrique septentrionale

    Even if preliminary results have shown that a protection period of 3 years is not sufficient for disappeared species to appear nor for succession to reach a next stage, mainly in the degraded Stipa tenacissima community, the reintroduction of the rest “gdal” practice seems to be beneficial and a suitable tool to manage sustainably the arid rangelands under changing climate. Thus, the evidence suggests that, during short-term rest from grazing (2 years), vegetation cover, density, rangeland production and carrying capacity can be improved.

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