The decomposition of Lolium perenne in soils exposed to elevated CO2: comparisons of mass loss of litter with soil respiration and soil microbial biomass

Autor:	Andrew S. Ball, T.R.G. Gray, Alwyn Sowerby, Herbert Blum
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Biogeochemical cycle biology food and beverages Soil Science Biomass Plant litter biology.organism_classification complex mixtures Microbiology Lolium perenne Soil respiration chemistry Agronomy Soil water Litter Environmental science Organic matter
Zdroj:	Soil Biology and Biochemistry. 32:1359-1366
ISSN:	0038-0717
DOI:	10.1016/s0038-0717(00)00045-6
Popis:	Two key questions regarding the effects of elevated atmospheric CO2 on soil microbial biomass are, (a) will future levels of elevated CO2 affect the amount of microbial biomass in soil? and (b) how will any observed changes impact on C-flux from soils? These questions were addressed by examining soil microbial biomass, and in situ estimations of soil respiration in grassland soils exposed to free air carbon dioxide enrichment (60 Pa). Corresponding measurements of plant litter mass loss were taken using litter bags, ensuring that ambient litter was decomposed in ambient soil, and elevated CO2 grown litter was decomposed in soils exposed to elevated CO2. Significantly greater levels of microbial biomass (p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2f466d68aeea19d7b0bfb743031c2153 https://doi.org/10.1016/s0038-0717(00)00045-6 Zobrazit plný text záznamu Full Text from ScienceDirect