대기 중 이산화탄소의 증가가 산림 토양의 화학적 풍화작용에 미치는 영향

Abstract

Chemical weathering of forest soils can reduce atmospheric CO2 concentration over geologic time scales, providing many essential elements for life. Although many studies have been conducted on the effects of elevated atmospheric CO2 on forest carbon storage using open top chambers and FACE (Free air CO2 enrichment) facilities since the 1990s, studies on chemical weathering of forest soils under elevated CO2 are relatively rare. Here I review on how elevated atmospheric CO2 can affect the chemical weathering of forest soils and suggest directions on future research. Despite the recent advances in chemical weathering of forest soils under elevated atmospheric CO2, it is still not clear how the large volume of forest soils would react under the condition. Future studies on weathering of forest soils covering large areas from the tropics to the polar regions with carefully monitored pretreatment data would provide key information on how soils, the Earth’s life sustaining engine, change under climate change.