Plant–soil feedbacks mediated by humus forms: A review

The present review was undertaken to add more information on the place taken by humus forms in plant–soil interactions. Three questions were asked: (i) are humus forms under the control of plant–soil relationships, (ii) are humus forms the main seat of these relationships, and (iii) can humus forms...

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Bibliographic Details
Published in:Soil biology & biochemistry 2013-02, Vol.57, p.1048-1060
Main Author: Ponge, Jean-François
Format: Article
Language:English
Subjects:
Aboveground–belowground biodiversity
Agricultural sciences
Agronomy. Soil science and plant productions
Biochemistry and biology
Biological and medical sciences
Chemical, physicochemical, biochemical and biological properties
ecosystems
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
humus
Humus forms
Life Sciences
moder
mor
Organic matter
Physics, chemistry, biochemistry and biology of agricultural and forest soils
Plant–soil relationships
Soil science
Soil study
Soil-plant relationships. Soil fertility
Soil-plant relationships. Soil fertility. Fertilization. Amendments
species diversity
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Summary:The present review was undertaken to add more information on the place taken by humus forms in plant–soil interactions. Three questions were asked: (i) are humus forms under the control of plant–soil relationships, (ii) are humus forms the main seat of these relationships, and (iii) can humus forms explain interactions between aboveground and belowground biodiversity. Some conflicting views about humped-back models of species richness may be resolved by considering a limited number of stable humus forms (here considered as ecosystem strategies) which should be treated separately rather than in a single model. Mull, moder and mor pathways are each characterized by a fine tuning between aboveground and belowground communities, the humus form (including litter) being the place where resonance between these communities takes place, both in functional and evolutionary sense. ► Humus forms are controlled by plant–soil relationships. ► They are the main seat of these relationships. ► They explain interactions between above- and belowground biodiversity.
ISSN:0038-0717
1879-3428
DOI:10.1016/j.soilbio.2012.07.019