KLUM@GTAP: Introducing biophysical aspects of land-use decisions into a general equilibrium model: A coupling experiment

Kerstin Ronneberger, Maria Berrittella, Francesco Bosello and Richard S.J. Tol ()

No FNU-105, Working Papers from Research unit Sustainability and Global Change, Hamburg University

Abstract: In this paper the global agricultural land use model KLUM is coupled to an extended version of the computable general equilibrium model (CGE) GTAP in order to consistently assess the integrated impacts of climate change on global cropland allocation and its implication for economic development. The methodology is innovative as it introduces dynamic economic land-use decisions based also on the biophysical aspects of land into a state-ofthe- art CGE; it further allows the projection of resulting changes in cropland patterns on a spatially more explicit level. A convergence test and illustrative future simulations underpin the robustness and potentials of the coupled system. Reference simulations with the uncoupled models emphasize the impact and relevance of the coupling; the results of coupled and uncoupled simulations can differ by several hundred percent.

Keywords: Land-use change; computable general equilibrium modeling; integrated assessment; climate change (search for similar items in EconPapers)
JEL-codes: C68 R14 Q17 Q24 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-agr, nep-cmp and nep-env
Date: 2006-05, Revised 2006-05
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Related works:
Working Paper: Klum@Gtap: Introducing Biophysical Aspects of Land-Use Decisions Into a General Equilibrium Model A Coupling Experiment (2006)
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Persistent link: http://EconPapers.repec.org/RePEc:sgc:wpaper:105

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