000122859 001__ 122859
000122859 005__ 20180122221031.0
000122859 037__ $$a824-2016-54837
000122859 041__ $$aen_US
000122859 084__ $$aQ11
000122859 084__ $$aQ15
000122859 245__ $$aThe Nexus Land-Use Model, an Approach Articulating Biophysical Potentials and Economic Dynamics to Model
000122859 260__ $$c2012-03
000122859 269__ $$a2012-03
000122859 270__ $$msouty@centre-cired.fr$$pSouty,   F.
000122859 300__ $$a53
000122859 336__ $$aWorking or Discussion Paper
000122859 490__ $$aCCSD
000122859 490__ $$a16.2012
000122859 520__ $$aInteractions between food demand, biomass energy and forest preservation are driving both food prices and land-use changes, regionally and globally. This study presents a new model called Nexus Land-Use which describes these interactions through a generic representation of agricultural intensification mechanisms. The Nexus Land-Use model equations combine biophysics and economics into a single coherent framework to calculate crop yields, food prices, and resulting pasture and cropland areas within 12 regions inter-connected with each other by international trade. The representation of cropland and livestock production systems in each region relies on three components: (i) a biomass production function derived from the crop yield response function to inputs such as industrial fertilisers ; (ii) a detailed representation of the livestock production system subdivided into an intensive and an extensive component, and (iii) a spatially explicit distribution of potential (maximal) crop yields prescribed from the Lund-Postdam-Jena global vegetation model for managed Land (LPJmL). The economic principles governing decisions about land-use and intensification are adapted from the Ricardian rent theory, assuming cost minimisation for farmers. The land-use modelling approach described in this paper entails several advantages. Firstly, it makes it possible to explore interactions among different types of demand for biomass for food and animal feed, in a consistent approach, including indirect effects on land-use change resulting from international trade. Secondly, yield variations induced by the possible expansion of croplands on less suitable marginal lands are modelled by using regional land area distributions of potential yields, and a calculated boundary between intensive and extensive production. The model equations and parameter values are first described in detail. Then, idealised scenarios exploring the impact of forest preservation policies or rising energy price on agricultural intensification are described, and their impacts on pasture and cropland areas are investigated.
000122859 542__ $$fLicense granted by Nancy Elera (nancy.elera@feem.it) on 2012-04-20T13:03:22Z (GMT):

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000122859 650__ $$aEnvironmental Economics and Policy
000122859 6531_ $$aLand-use Change
000122859 6531_ $$aModelling
000122859 6531_ $$aGlobal Biomass Projections
000122859 700__ $$aSouty, Francois
000122859 700__ $$aBrunelle, Thierry
000122859 700__ $$aDumas, Patrice
000122859 700__ $$aDorin, Bruno
000122859 700__ $$aCiais, Philippe
000122859 700__ $$aCrassous, Renaud
000122859 8564_ $$s2319147$$uhttp://ageconsearch.umn.edu/record/122859/files/NDL2012-016.pdf
000122859 887__ $$ahttp://purl.umn.edu/122859
000122859 909CO $$ooai:ageconsearch.tind.io:122859$$pGLOBAL_SET
000122859 912__ $$nSubmitted by Nancy Elera (nancy.elera@feem.it) on 2012-04-20T13:10:29Z
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  Previous issue date: 2012-03
000122859 982__ $$gFondazione Eni Enrico Mattei (FEEM)>Climate Change and Sustainable Development
000122859 980__ $$a824