Data

Vapour Pressure Deficit Modulates Hydraulic Function and Structure of Tropical Rainforests Under Non-Limiting Soil Water Supply

Terrestrial Ecosystem Research Network
Binks, Oliver
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25901/86yk-5m77&rft.title=Vapour Pressure Deficit Modulates Hydraulic Function and Structure of Tropical Rainforests Under Non-Limiting Soil Water Supply&rft.identifier=10.25901/86yk-5m77&rft.publisher=Terrestrial Ecosystem Research Network&rft.description=Tropical rainforests play a powerful role in mediating the global climate through the exchange and storage of carbon and water. Climate change is expected to generate higher atmospheric water demand in many areas, potentially increasing the rate of evaporation. In this study, we show that higher evaporative demand may in fact lead to lower fluxes of water from tropical rainforests and a reduced capacity of these forests to store carbon. The record contains meteorological and forest inventory data in addition to data on soil water potential, sapflow measurements and tree hydraulic vulnerability measures from Robson Creek and Cow Bay study sites in Far North Queensland. The measurements occurred over a period of two years form 2019 to 2020.Details of methology is provided in Binks et al. 2021 New Phytologist 10.1111/nph.17895, and Binks et al. 2023 New Phytologist. Meteorological data were recorded from canopy towers 5-10 m above the forest canopy. Met data for the two sites are available on: Robson creek and Cow Bay. Soil water potential was measured using Teros 21 sensors (Meter Group) installed in bore holes 80 mm wide, and measured at depths of 0.1, 0.5, 1, and 2m (where possible). Hydraulic vulnerability (P50, P80) was estimated using pneumatic vulnerability curves (percent air discharged). Sap flux was measured using the EMS81 sap flow system.Progress Code: completedMaintenance and Update Frequency: notPlanned&rft.creator=Binks, Oliver &rft.date=2021&rft.edition=1&rft.coverage=The study was conducted in a lowland tropical rainforest site, Cow Bay, and an upland site, Robson Creek.&rft.coverage=northlimit=-17.129693; southlimit=-17.129693; westlimit=145.609625; eastLimit=145.609625; projection=EPSG:28354&rft.coverage=northlimit=-16.227087; southlimit=-16.227087; westlimit=145.431821; eastLimit=145.431821; projection=EPSG:28354&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_rights=TERN services are provided on an as-is and as available basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. <br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting&rft_rights=Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=environment&rft_subject=LANDSCAPE ECOLOGY&rft_subject=VEGETATION&rft_subject=EARTH SCIENCE&rft_subject=BIOSPHERE&rft_subject=ECOLOGY&rft_subject=BIOLOGICAL SCIENCES&rft_subject=Ecological Physiology&rft_subject=Robson Creek Rainforest&rft_subject=Daintree Rainforest, Cow Bay&rft_subject=soil water potential (Kilopascal)&rft_subject=Kilopascal&rft_subject=predawn water potential (Megapascal)&rft_subject=Megapascal&rft_subject=sap flux (Kilograms per metre hour)&rft_subject=Kilograms per metre hour&rft_subject=midday water potential (Megapascal)&rft_subject=1 km - < 10 km or approximately .01 degree - < .09 degree&rft_subject=1 minute - < 1 hour&rft.type=dataset&rft.language=English Access the data
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TERN services are provided on an "as-is" and "as available" basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure.
Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN.

Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting

Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.

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Brief description


Tropical rainforests play a powerful role in mediating the global climate through the exchange and storage of carbon and water. Climate change is expected to generate higher atmospheric water demand in many areas, potentially increasing the rate of evaporation. In this study, we show that higher evaporative demand may in fact lead to lower fluxes of water from tropical rainforests and a reduced capacity of these forests to store carbon.
The record contains meteorological and forest inventory data in addition to data on soil water potential, sapflow measurements and tree hydraulic vulnerability measures from Robson Creek and Cow Bay study sites in Far North Queensland. The measurements occurred over a period of two years form 2019 to 2020.

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Details of methology is provided in Binks et al. 2021 New Phytologist 10.1111/nph.17895, and Binks et al. 2023 New Phytologist.
  • Meteorological data were recorded from canopy towers 5-10 m above the forest canopy. Met data for the two sites are available on: Robson creek and Cow Bay.
  • Soil water potential was measured using Teros 21 sensors (Meter Group) installed in bore holes 80 mm wide, and measured at depths of 0.1, 0.5, 1, and 2m (where possible).
  • Hydraulic vulnerability (P50, P80) was estimated using pneumatic vulnerability curves (percent air discharged).
  • Sap flux was measured using the EMS81 sap flow system.

Progress Code: completed
Maintenance and Update Frequency: notPlanned

Notes

Credit
We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.

This work was supported by ARC grant DP17010409 to PM; Catalan science and technology grant, Beatriu de Pinós, BP2021 00224 to Oliver Binks (OB). OB gratefully acknowledges the Daintree Discovery Centre for use of their facilities and power supply for the field equipment. Mike Liddell acknowledges the support of TERN in maintaining the field infrastructure at Cow Bay and Robson Creek, TERN is the Australian Government's Terrestrial Ecosystem Research Network (www.tern.org.au).
Purpose
The study was conducted to understand the climatic drivers of transpiration of tropical rainforests, and the feedbacks between water stress in trees and forest structure and function.

Created: 2023-08-24

Issued: 2021-11-23

Modified: 2024-04-30

Data time period: 2019-04-29 to 2020-08-04

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145.60963,-17.12969

145.609625,-17.129693

145.43182,-16.22709

145.431821,-16.227087

text: The study was conducted in a lowland tropical rainforest site, Cow Bay, and an upland site, Robson Creek.

Subjects
1 km - < 10 km or approximately .01 degree - < .09 degree | 1 minute - < 1 hour | Biological Sciences | BIOSPHERE | Daintree Rainforest, Cow Bay | EARTH SCIENCE | Ecology | Ecological Physiology | Kilograms per metre hour | Kilopascal | LANDSCAPE ECOLOGY | Megapascal | Robson Creek Rainforest | VEGETATION | climatologyMeteorologyAtmosphere | environment | midday water potential (Megapascal) | predawn water potential (Megapascal) | sap flux (Kilograms per metre hour) | soil water potential (Kilopascal) |

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Point-of-truth metadata URL

uri : https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/db33762b-1199-4dbd-b151-b6ce8d5ad042

Forest system hydraulic conductance: partitioning tree and soil components

doi : https://doi.org/10.1111/nph.17895

Identifiers