%0 Journal Article %@nexthigherunit 8JMKD3MGPCW/449PGL8 %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@archivingpolicy denypublisher denyfinaldraft %X This study investigated the spatial and temporal variation in soil carbon dioxide (CO2) efflux and its relationship with soil teperature,soil moisture and rainfall in a forest near Manaus, Amazonas, Brazil.During period of low soil water content, temperature in deeper layers had a better relationship with CO2 efflux than with the temperature nearer the soil surface. Soil water content may limit CO2 production during the results showed that efflux rates reduced 30% immediately after a rainfall event. Measurements of the CO2 concentretion gradient in the soil profile showed a buildup in the concentration of CO2 after rain on the top soil. This higher CO2 concentration developed shortly after rainfall when the soil pores in the upper layers were filled with water, which created a barrier for gas exchange between the soil and the atmosphere. %8 Sep %T Soil CO2 efflux in a tropical forest in the central Amazon %@secondarytype PRE PI %K carbon dioxide, rainfall effect, soil carbon, soil respiration, soil temperature, soil water content. %@usergroup Simone %@usergroup administrator %@usergroup marciana %@group DIR-INPE-MCT-BR %@e-mailaddress atus@cptec.inpe.br %3 Sotta_NobreAD_SoilCO2.pdf %@copyholder SID/SCD %@secondarykey INPE-13420-PRE/8633 %@issn 1354-1013 %2 sid.inpe.br/iris@1915/2006/01.20.17.00.38 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %B Global Change Biology %@versiontype publisher %P 601-617 %4 sid.inpe.br/iris@1915/2006/01.20.17.00 %@documentstage not transferred %D 2004 %V 10 %@doi 10.1111/j.1529-8817.2003.00761.x %A Sotta, Eleneide Doff, %A Meir, Patrick, %A Malhi, Yadvinder, %A Nobre, Antonio Donato, %@dissemination WEBSCI; PORTALCAPES; MGA. %@area MET