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Anthropogenic and biophysical contributions to increasing atmospheric CO2 growth rate and airborne fraction
Anthropogenic and biophysical contributions atmospheric CO2 growth rate airborne fraction
2010/1/18
We quantify the relative roles of natural and anthropogenic influences on the growth rate of atmospheric CO2 and the CO2 airborne fraction, considering both interdecadal trends and interannual variabi...
The CO2 exchange of biological soil crusts in a semiarid grass-shrubland at the northern transition zone of the Negev desert,Israel
CO2 exchange biological soil crusts semiarid grass-shrubland transition zone
2010/1/18
Biological soil crusts (BSC) contribute significantly to the soil surface cover in many dryland ecosystems. A mixed type of BSC, which consists of cyanobacteria, mosses and cyanolichens, constitutes m...
A rapid transition from ice covered CO2–rich waters to a biologically mediated CO2 sink in the eastern Weddell Gyre
rapid transition ice covered CO2–rich waters CO2 sink
2010/1/18
Circumpolar Deep Water (CDW), locally called Warm Deep Water (WDW), enters the Weddell Gyre in the southeast, roughly at 25° E to 30° E. In December 2002 and January 2003 we studied the effect of entr...
Effects of storms on primary productivity and air-sea CO2 exchange in the subarctic western North Pacific:a modeling study
storms primary productivity air-sea CO2 exchange North Pacific
2010/1/18
Biogeochemical responses of the open ocean to storms and their feedback to climate are still poorly understood. Using a marine ecosystem model, we examined biogeochemical responses to the storms in th...
Mesocosm CO2 perturbation studies:from organism to community level
Mesocosm CO2 perturbation organism community level
2010/1/18
Mesocosm CO2 perturbation studies:from organism to community level。
Microzooplankton grazing and phytoplankton growth in marine mesocosms with increased CO2 levels
Microzooplankton grazing phytoplankton growth marine mesocosms CO2 levels
2010/1/18
Microzooplankton grazing and algae growth responses to increasing pCO2 levels (350, 700 and 1050 μatm) were investigated in nitrate and phosphate fertilized mesocosms during the PeECE III experiment 2...
Implications of CO2 pooling on δ13C of ecosystem respiration and leaves in Amazonian forest
Implications CO2 δ13C ecosystem respiration Amazonian forest
2010/1/15
The carbon isotope of a leaf (δ13Cleaf) is generally more negative in riparian zones than in areas with low soil moisture content or rainfall input. In Central Amazonia, the small-scale topography is ...
Multiple quality tests for analysing CO2 fluxes in a beech temperate forest
Multiple quality tests CO2 fluxes beech temperate forest
2010/1/15
Eddy covariance (EC) measurements are widely used to estimate the amount of carbon sequestrated by terrestrial biomes. The decision to exclude an EC flux from a database (bad quality records, turbulen...
Effects of increased atmospheric CO2 on small and intermediate sized osmotrophs during a nutrient induced phytoplankton bloom
atmospheric CO2 intermediate sized osmotrophs nutrient induced phytoplankton bloom
2010/1/15
We report the transient population dynamic response of the osmotrophic community initiated by a nutrient pulse in mesocosms exposed to different pCO2 levels. Differences in phytoplankton and heterotro...
Dependence of CO2 advection patterns on wind direction on a gentle forested slope
Dependence CO2 advection patterns wind direction gentle forested slope
2010/1/15
Gravitational flows generated on a gentle slope in stable conditions were analysed at a forested site at Vielsalm in Belgium. There were two distinct situations at the site, one corresponding to verti...
Sensitivity of sea-to-air CO2 flux to ecosystem parameters from an adjoint model
Sensitivity sea-to-air CO2 flux ecosystem parameters adjoint model
2010/1/15
An adjoint model is applied to examine the biophysical factors that control surface pCO2 in different ocean regions. In the tropical Atlantic and Indian Oceans, the annual cycle of pCO2 in the model i...
Sea-surface CO2 fugacity in the subpolar North Atlantic
Sea-surface CO2 fugacity subpolar North Atlantic
2010/1/15
We present the first year-long subpolar trans-Atlantic set of surface seawater CO2 fugacity (fCO2sw) data. The data were obtained aboard the MV Nuka Arctica in 2005 and provide a quasi-continuous pict...
Effects of CO2 on particle size distribution and phytoplankton abundance during a mesocosm bloom experiment (PeECE II)
CO2 particle size distribution phytoplankton abundance mesocosm bloom experiment
2010/1/15
The influence of seawater carbon dioxide (CO2) concentration on the size distribution of suspended particles (2–60 μm) and on phytoplankton abundance was investigated during a mesocosm experiment at t...
Dynamics of dimethylsulphoniopropionate and dimethylsulphide under different CO2 concentrations during a mesocosm experiment
dimethylsulphoniopropionate dimethylsulphide CO2 concentrations mesocosm experiment
2010/1/15
The potential impact of seawater acidification on the concentrations of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP), and the activity of the enzyme DMSP-lyase was investigated during a...
The impact on atmospheric CO2 of iron fertilization induced changes in the ocean's biological pump
atmospheric CO2 iron fertilization ocean's biological pump
2010/1/15
Using numerical simulations, we quantify the impact of changes in the ocean's biological pump on the air-sea balance of CO2 by fertilizing a small surface patch in the high-nutrient, low-chlorophyll r...