Historical CO(2) emission and concentrations due to land use change of croplands and pastures by country.
This work is aimed at estimating the historical land use change emission and concentrations of CO(2) by country. Calculating the area differences of each biome (associated to carbon factors) converted to cropland (including urban areas) and pastures by country we calculated the land use change CO(2) emission over the past 300 years using a new dataset, which is a well known one in the literature: the HYDE land use database. According to IPCC-SR-LULUCF (2000) the net cumulative global CO(2) emission from land use change (1850--1990) is estimated to have been 499+/-205 Tg CO(2), our result is 360 Tg CO(2) for the same period, and Houghton's (Houghton, RA, 2003a. Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850--2000. Tellus 55B, 378--390) result is 492 Tg CO(2). We have also used the Bern model (IPCC-TAR-WG1, 2001) of decay time of CO(2) to estimate the concentrations of CO(2) in the year 1990 due to land use change emission, once the CO(2) emission from the past is still decaying in the atmosphere.
International Virtual Institute on Global Change-IVIG/COPPE/UFRJ, Ilha do Fundão, Centro de Tecnologia, Bloco I, Sala 129, CEP: 21.945-970, Rio de Janeiro-RJ, Brazil; Energy Planning Programme at Federal University of Rio de Janeiro, Brazil.
Christiano Pires
CP
de Campos
Maria Silvia
MS
Muylaert
Luiz Pinguelli
LP
Rosa
D000383:Agriculture; D000397:Air Pollution / Q000266:history*; D001272:Atmosphere; D002244:Carbon / Q000378:metabolism; D002245:Carbon Dioxide / Q000032:analysis* / Q000266:history; D002947:Cities; D049672:History, 19th Century; D049673:History, 20th Century; D008962:Models, Theoretical; D018521:Plant Physiological Phenomena
D002245:Carbon Dioxide; D002244:Carbon