Carbon Storage in Tagus Salt Marsh Sediments |
| |
Authors: | Isabel Caçador Ana Luísa Costa Carlos Vale |
| |
Institution: | 1. Institute of Oceanography, Faculty of Sciences, University of Lisbon, Rua Ernesto de Vasconcelos Campo Grande, 1749-016, Lisbon, Portugal 2. Institute for Sea and Fisheries Research (IPIMAR), Av. Brasília, 1449-006, Lisbon, Portugal
|
| |
Abstract: | Seasonal variation of above ground and belowground biomass of Spartina maritima and Halimione portulacoides, decomposition rates of belowground detritus in litterbags, and carbon partitioning in plant components and sediments were determined in two Tagus estuary marshes with different environmentalconditions. Total biomass was higher in the saltier marsh from 7,190 to 6,593 g m-2 dw and belowground component contributed to more than 90%. Litterbag experiment showed that 30 to 50% of carbonis decomposed within a month (decomposition rate from 0.024 to 0.060 d-1). Slower decomposition in subsequent periods agrees with accumulation of carbon concentration in sediment. Atmospheric carbon annually transferred to the plant belowground biomass is stored more efficiently in sediments of Corroios than Pancas. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|