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Production of Picea abies in South-east Norway in Response to Climate Change: A Case Study Using Process-based Model Simulation with Field Validation

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Abstract:

A process-based model was used to simulate biomass production of Norway spruce under both current climate and climate change scenarios. The model was parameterized for Nordmoen in south-east Norway using real climate data for the period 1987–1989. The model was applied to predict the biomass production responses to three climate change scenarios. The results showed that net primary production (NPP) increased by 7% under an elevated annual mean air temperature of 4°C from the current 10.1 t dry mass ha -1 yr -1. A doubled current ambient CO2 concentration significantly increased NPP by 36%. The scenario of both elevated temperature and elevated CO2 concentration led to an increase in the NPP of 49%, higher than the sum of the two effects acting singly. The results also showed that forest production responses to climate change depend on the conditions of climate used for reference.

Keywords: ATIONS; BIOMASS; CONCENTRATION; ELE V; MODEL; NORWAY; PRODUCTION; SIMULATION; SPRUCE; TEMPERATURE

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/028275802317221064

Publication date: January 1, 2002

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