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Linking models for land use analysis: experiences from the SENSOR project AgEcon
Jansson, Torbjorn; Bakker, Martha M.; Boitier, B.; Fougeyrollas, A.; Helming, John F.M.; van Meijl, Hans; Verkerk, P.J..
In order to quantify the effects of a comprehensive set of policies on land use, interaction between sectors needs to be accounted for, while maintaining a high level of detail for each sector. This calls for a combination of sector specific and sector wide models. This paper describes such a modelling system, with emphasis on the linking of the models to a coherent system. Five sectors of significant importance for land use are modelled individually: Forestry, agriculture, urban land use, transport infrastructure, and tourism. All models are connected as sub-modules to an economy-wide partial econometric model. In addition, a land cover model is used to disaggregate land use down to 1km grid resolution. The linking of such a diverse set of models in a...
Tipo: Conference Paper or Presentation Palavras-chave: Model linking; Sustainable land use; Cross sector modelling; Iterative recalibration; Land Economics/Use.
Ano: 2008 URL: http://purl.umn.edu/44169
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INSTITUTIONS AND SUSTAINABLE LAND USE: THE CASE OF FOREST AND GRAZING LANDS IN NORTHERN ETHIOPIA AgEcon
Gebreegziabher, Zenebe.
Land is an essential factor of production for agriculture, horticulture, forestry as well as other land related activities. Institutions that govern its use determine the sustainability and efficient use of this essential resource. In Ethiopia all land is publicly owned. Such an institutional setting has resulted in major degradation of Ethiopia’s land resources and dissipation of the resource rent, as available forest and grazing lands are exploited in a suboptimal fashion. An alternative to current institutional setting is to assign private property institution, but this will lead to welfare costs. In this paper, we examine the welfare effects (from consumer perspective) of change in institutional setting to forest and grazing lands using a unique data...
Tipo: Conference Paper or Presentation Palavras-chave: Institutions; Sustainable land use; Economic welfare.; Environmental Economics and Policy; K11; Q12; Q2; Q28.
Ano: 2009 URL: http://purl.umn.edu/51639
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Approximation of the surface of gypseous soils in San Luis Potosí, Mexico Ciencia e Investigación Agraria
Martínez-Montoya,Juan F; Herrero-Isern,Juan; Aceves-de Alba,Jorge; Palacio-Núñez,Jorge; Ruiz-Vera,Víctor M; Olmos-Oropeza,Genaro.
The gypseous soils of San Luis Potosí State, México, are not well map-delimited, despite their broad extent and the specific agricultural and environmental management they require. The present article highlights the location and extent of the gypseous lands in the Altiplano and Zona Media of San Luis Potosí State. For this purpose, soil, geology and vegetation maps as well as studies related to gypsum-rich soils, aerial photographs, and satellite maps (termed 'espaciomapas' in Spanish, these refer to Landsat-5 Thematic Mapper images of Red-Green-Blue:432 composition printed at 1:250,000 scale) were reviewed. Additionally, field and laboratory work were carried out. The maps provided by the Commission for Studies of the National Territory (CETENAL) proved...
Tipo: Journal article Palavras-chave: Cartography; Landsat images; Sustainable land use; Photo interpretation.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300013
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