Cite this dataset as
Cunha, H.F.V., Andersen, K., Rosa, J.S., Quesada, C.A., Hartley, I.P. (2021). Stem and soil respiration in fertilised plots in the Central Amazon, 2017-2019. NERC Environmental Information Data Centre. (Dataset). https://doi.org/10.5285/591e3708-7ff1-483b-9156-15c721c00daf
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This dataset is available under the terms of the Open Government Licence 
Stem and soil respiration in fertilised plots in the Central Amazon, 2017-2019
The dataset contains stem respiration (ppm) of 320 trees with DBH (Diameter at breast height) > 26 cm, measured with the EGM-4 (Environmental Gas Monitor for CO2). Data were collected on October 2019. In relation to the soil respiration dataset, it contains soil respiration (µmol CO2m-2 s-1) of different type of collars placed on the forest floor, and measured with the LI – 8100 A soil respiration system. Data were collected from June 2017 to October 2019. In both activities, leak tests were done before collections.
All research was conducted in a field site approximately 80 km north of Manaus, in the state of Amazonas, Brasil.
All research was conducted in a field site approximately 80 km north of Manaus, in the state of Amazonas, Brasil.
Publication date: 2021-01-26
View record as
Format
Comma-separated values (CSV)
Spatial information
- Study area
-
- Spatial representation type
- Tabular (text)
- Spatial reference system
- WGS 84 / Pseudo-Mercator
Temporal information
- Temporal extent
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2019-10-01 to 2019-10-31
Provenance & quality
Measurements of stem respiration (ppm) were performed on 320 trees with DBH > 25 cm, with 10 trees in each plot, during October 2019. CO2 stem efflux was measured with an infrared gas analyser (EGM-4, PP systems), where a chamber was placed on to a collar installed in the tree, and detected the rate of CO2 accumulation for a period of two minutes.
The collar was sealed with a special glue, and inspections with a flashlight were made to check for any holes B) An EGM-4 portable Infra Red Gas Analyser (IRGA) right and the chamber (left) for measurement of CO2 efflux.
We also measured soil respiration rates (autotrophic and heterotrophic) using the Li – 8100A soil respiration system (Li-cor, Lincoln, NE, USA), equipped with a 20 cm survey chamber (Model:8100-101). The equipment was set up to an observation length of 1 minute and 30 seconds, and the pre purge and pos purge to 10 seconds.
The collar was sealed with a special glue, and inspections with a flashlight were made to check for any holes B) An EGM-4 portable Infra Red Gas Analyser (IRGA) right and the chamber (left) for measurement of CO2 efflux.
We also measured soil respiration rates (autotrophic and heterotrophic) using the Li – 8100A soil respiration system (Li-cor, Lincoln, NE, USA), equipped with a 20 cm survey chamber (Model:8100-101). The equipment was set up to an observation length of 1 minute and 30 seconds, and the pre purge and pos purge to 10 seconds.
Related
This dataset is included in the following collections
Amazon Fertilization Experiment (AFEX) in Central Amazon, Brazil (2017-2020)
Correspondence/contact details
Hellen Fernanda Viana Cunha
National Institute of Amazonian Researches, Brazil
hfcunha.florestal@gmail.com
Authors
Cunha, H.F.V.
National Institute of Amazonian Researches, Brazil
https://orcid.org/0000-0002-1460-9904
Rosa, J.S.
National Institute of Amazonian Researches, Brazil
Quesada, C.A.
National Institute of Amazonian Researches, Brazil
Other contacts
- Custodian
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NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
- Publisher
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NERC Environmental Information Data Centreinfo@eidc.ac.uk