Effects of Land Cover Change on Regional Atmospheric Chemistry and Climate Change in China

Steiner, A. (2001). Effects of Land Cover Change on Regional Atmospheric Chemistry and Climate Change in China. IIASA Interim Report. IIASA, Laxenburg, Austria: IR-01-017

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Abstract

The terrestrial biosphere can significantly affect the exchange of water and energy at the biosphere-atmosphere interface. Additionally, the land cover type can affect regional atmospheric chemistry and climate via biogenic volatile organic carbon (VOC) emissions and their formation of secondary organic aerosols. The broad goal of this study is to investigate the impact of land cover and vegetation changes on these specific chemistry and climate effects. The Common Land Model (CLM) is used to parameterize the biosphere-atmosphere interface over the Shanghai region in China. Phase I of this study, described in this report, generates input parameters for this model based on a time series of actual and derived parameters. Atmospheric forcing data are generated on an hourly temporal resolution based on a 20-year series of monthly and daily averages. Surface data, including land cover/land use and soil information are generated for two scenarios: a) the current land cover and b) a "natural" land cover data set, derived to represent the absence of anthropogenic influences. Phase II of this study will evaluate the model sensitivity to these different input parameters. The potential impacts of land cover change on the regional atmospheric chemistry and climate using these two scenarios will be addressed.

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