Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 12.
  1. Library Resource
    Documents et rapports de conférence
    décembre, 2008
    Tunisie

    This paper assesses the economic value ofchanges in the attributes of farmers’ irrigation waterproperty rights in Tunisia. Changes on attributesgenerated by the transfer process of the property rightsfrom the collective to the individual level in addition tochanges in “constitutional” attributes were integratedinto three scenarios. The valuation was conducted usingthe Contingent Valuation Method through the elicitationof individuals’ willingness to pay. Results show positivewillingness to pay values for all scenarios.

  2. Library Resource
    Articles et Livres
    décembre, 2013
    Indonésie, Kenya, Inde, Tunisie, Chine

    The impact of land use changes on sustainable development is of increasing interest in many regions of the world. This study aimed to test the transferability of the Framework for Participatory Impact Assessment (FoPIA), which was originally developed in the European context, to developing countries, in which lack of data often prevents the use of data-driven impact assessment methods. The core aspect of FoPIA is the stakeholder-based assessment of alternative land use scenarios.

  3. Library Resource
    Documents et rapports de conférence
    décembre, 2008
    Tunisie

    This article analyzes the efficiency of Water Users Associations (WUA) in the Cap Bon region(Tunisia) and studies its main determinants. The analysis is performed in two stages. First, theefficiency is measured via the nonparametric “Data Envelopment Analysis” (DEA) technique. TheDEA models are constructed not only to assess the overall WUA efficiency but also to evaluate themanagement and engineering sub-vectors efficiencies separately through a mathematical modificationin the initial DEA model. In a second stage critical determinants of efficiency are determined using aTobit model.

  4. Library Resource
    Documents de politique et mémoires
    août, 2010
    Tunisie

    Problems of unsustainable watershed use in the Mediterranean areas (overgrazing, forest degradation and clearing, soil erosion, fires, etc.) often result from the reduced profitability of traditional land use systems, lack of clearly defined property rights, insufficient enforcement of existing rules, and lack of adequate economic instruments.

  5. Library Resource
    Documents de politique et mémoires
    janvier, 2002
    Tunisie, Afrique, Afrique sub-saharienne, Afrique septentrionale, Asie occidentale

    The System-wide Program for Collective Action and Property Rights (CAPRi)sponsored an International Conference on Policy and Institutional Options for theManagement of Rangelands in Dry Areas, May 7-11, 2001 in Hammamet, Tunisia.

  6. Library Resource
    Articles et Livres
    décembre, 2003
    Tunisie

    Apart from a decrease in total perennial plant cover, degradation of North-African arid lands is not easy to qualify. Yet, simple and comprehensive yardsticks are necessary to assess degradation. We assigned components of competitive ability (C), stress tolerance (S) and ruderality (R) to 15 common perennials of Presaharian Tunisia. We used for that purpose phyto-ecological studies, data about life-form, grazing value and demography and circumstantial data.

  7. Library Resource
    Articles et Livres
    décembre, 2012
    Tunisie

    The present study describes an innovative methodology to rank suitable sites for irrigation with TWW using fuzzy-AHP based on GIS where the Nabeul-Hammamet aquifer catchment (Tunisia) is selected as the target area. The model is relatively simple and is extendable worldwide. Several influential parameters are identified considering simultaneously technical, social, economical and environmental aspects. They are grouped in five main criteria, namely land suitability for irrigation, resources conflicts, cost effectiveness, social acceptance and environmental impact.

  8. Library Resource
    Articles et Livres
    décembre, 2016
    Tunisie

    This paper presents a geographic information system–based multi-criteria site selection tool of an olive mill wastewater (OMW) disposal site in Sidi Bouzid Region, Tunisia. The multi-criteria decision framework integrates ten constraints and six factors that relate to environmental and economic concerns, and builds a hierarchy model for OMW disposal site suitability. The methodology is used for preliminary assessment of the most suitable OMW disposal sites by combining fuzzy set theory and analytic hierarchy process (AHP).

  9. Library Resource
    Articles et Livres
    décembre, 2013
    Tunisie

    Remote sensing of vegetation by using active microwave sensors is important for the management of land and water resources. Microwave radiation at X-band penetrates only the upper part of the canopy; thus, radar backscattering comes mainly from the top vegetation layer, making the scattering from soil almost negligible. Fourteen in situ measurement campaigns were carried out during which sixteen SAR images of COSMO-SkyMed and TerraSAR-X were acquired on the test site of Merguellil Basin, in the centre of Tunisia, from March to May 2012.

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