Mineral soil carbon fluxes in forests and implications for carbon balance assessments
نویسندگان
چکیده
منابع مشابه
Soil carbon and belowground carbon balance of a short‐rotation coppice: assessments from three different approaches
Uncertainty in soil carbon (C) fluxes across different land-use transitions is an issue that needs to be addressed for the further deployment of perennial bioenergy crops. A large-scale short-rotation coppice (SRC) site with poplar (Populus) and willow (Salix) was established to examine the land-use transitions of arable and pasture to bioenergy. Soil C pools, output fluxes of soil CO 2, CH 4, ...
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The 50% variation in the estimates of carbon (C) content in the forest soils of Russia at present is caused by confusion of terms and ignorance of the soil geographical representativeness in forests. The GIS-based analysis closes the gap to the estimate published earlier by Alexeyev and Birdsey (1994, p. 170). The average soil carbon density (SCD) for the 0.3 meter (m) layer of the forest soils...
متن کاملSoil carbon dioxide fluxes and profile concentrations in two boreal forests
Because a large fraction of the world’s carbon exists in the soil of boreal forests, understanding how soil temperature and moisture affect soil respiration is vital for predicting soil response to climate change. We measured soil respiration and CO2 concentrations within soils of floodplain and upland forests in interior Alaska from 1996 to 1997. At each site, a 0.10-ha-area shelter was constr...
متن کاملThe carbon balance of forest soils: detectability of changes in soil carbon stocks in temperate and Boreal forests.
Estimating soil carbon content as the product of mean carbon concentration and bulk density can result in considerable overestimation. Carbon concentration and soil mass need to be measured on the same sample and carbon contents calculated for each individual sample before averaging. The effect of this bias is likely to be smaller (but still greater than zero) when the primary objective is to d...
متن کاملSoil carbon dioxide fluxes in natural and CO2-enriched systems
Carbon dioxide fluxes between the soil and atmosphere were determined on the 1991 free-air carbon dioxide enrichment (FACE) experiment at the Maricopa Agricultural Center, Maricopa, Arizona. The study was conducted on drip-irrigated cotton in conjunction with other physical and physiological measurements. Fluxes were measured with a 1.6 1 closedchamber static sampling system. The main treatment...
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ژورنال
عنوان ژورنال: GCB Bioenergy
سال: 2013
ISSN: 1757-1693
DOI: 10.1111/gcbb.12044