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In situ high-frequency observations of mycorrhizas
Allen, Michael F. ; Kitajima, Kuni
The New phytologist, 2013-10, Vol.200 (1), p.222-228
[Periódico revisado por pares]
England: New Phytologist Trust
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Título:
In situ high-frequency observations of mycorrhizas
Autor:
Allen, Michael F.
;
Kitajima, Kuni
Assuntos:
automated minirhizotron
;
Autumn
;
Biomass
;
Carbon
;
Carbon Cycle
;
carbon scaling
;
Climate
;
conifer forest
;
Coniferous forests
;
Dry season
;
Dynamics
;
Ecosystem
;
ectomycorrhiza
;
Ectomycorrhizas
;
Environmental changes
;
Environmental Monitoring
;
Forest soils
;
Fungi - growth & development
;
Hyphae
;
Hyphae - growth & development
;
Installation
;
Length
;
Mediterranean Region
;
Mortality
;
Mycorrhizae - growth & development
;
Plant Roots
;
production
;
Rain
;
Seasons
;
Sensors
;
Soil
;
Soil dynamics
;
Soil ecology
;
Soil fungi
;
Soil mechanics
;
Soil moisture
;
Soil respiration
;
soil sensor network
;
Soil temperature
;
Soil water
;
Soils
;
Temperature
;
Temperature dependence
;
Temporal variations
;
Tracheophyta - microbiology
;
Trees
;
turnover
;
Water
É parte de:
The New phytologist, 2013-10, Vol.200 (1), p.222-228
Notas:
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição:
Understanding the temporal variation of soil and root dynamics is a major step towards determining net carbon in ecosystems. We describe the installation and structure of an in situ soil observatory and sensing network consisting of an automated minirhizotron with associated soil and atmospheric sensors. Ectomycorrhizal hyphae were digitized daily during 2011 in a Mediterranean climate, highelevation coniferous forest. Hyphal length was high, but stable during winter in moist and cold soil. As soil began to warm and dry, simultaneous mortality and production indicating turnover followed precipitation events. Mortality continued through the dry season, although some hyphae persisted through the extremes. With autumn monsoons, rapid hyphal re-growth occurred following each event. Relative hyphal length is dependent upon soil temperature and moisture. Soil respiration is related to the daily change in hyphal production, but not hyphal mortality. Continuous sensor and observation systems can provide more accurate assessments of soil carbon dynamics.
Editor:
England: New Phytologist Trust
Idioma:
Inglês
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