Responses of plant rhizosphere to atmospheric CO2 enrichment

Plant root growth is generally stimulated under elevated CO2. This will bring more carbon to the below-ground through root death and exudate. This potential increase in below-ground carbon sink may lead to changes in long-term soil sequestration and relationship between host plants and symbions. On...

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Bibliographic Details
Published in:Chinese science bulletin 2000-01, Vol.45 (2), p.97-101
Main Authors: Lin, Weihong, Zhang, Fusuo, Bai, Kezhi
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon sinks
Chemical composition
Exudation
Host plants
Litter
Organic matter
Organic soils
Plant growth
Plant roots
Rhizosphere
Soil organic matter
Soils
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Summary:Plant root growth is generally stimulated under elevated CO2. This will bring more carbon to the below-ground through root death and exudate. This potential increase in below-ground carbon sink may lead to changes in long-term soil sequestration and relationship between host plants and symbions. On the other hand, changes in litter components due to the changes in plant chemical composition may also affect soil processes, such as litter decomposition, soil organic matter sequestration and hetero-nutritional bacteria activities. These issues are discussed.
ISSN:1001-6538
2095-9273
1861-9541
2095-9281
DOI:10.1007/BF02884650