Understanding the Interactions Between Forests and the Atmosphere

Quantifying fluxes and analyzing responses of trees and forests to environmental changes

Flux Quantification

Measure and estimate fluxes of water vapor, carbon dioxide, and some air pollutants between trees and forests and the atmosphere.

Response Assessment

Evaluate response patterns of trees and forests to environmental changes at different scales and conditions in various settings.

Model Parameterization

Parameterize process-based and mechanistic models to predict future responses of trees and forests to environmental changes.

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Highlight : Long-term monitoring of tree water flow in Khao Yai National Park in Thailand

In 2019-2020, we established two towers reaching above the canopy of an old growth (>200 years old, 50 m tall) and a young (~10 years old, 20 m tall) forest and set up monitoring systems of meteorological and soil variables and water flow in trees that are situated around the towers. These forests are in Khao Yai National Park which is a UNESCO heritage site and home to a large number of plant and animal species, hence one of the richest and most diverse ecosystems in Southeast Asia. Since then, the data have been continuously collected at half hourly intervals and maintained at our best.

Data from these towers, especially the tree water flow data, will facilitate the investigation of underlying mechanisms that govern the responses of trees to environmental changes. Furthermore, with an appropriate scaling approach, tree water flow data can be used to estimate forest transpiration which comprises a significant component of water loss from forest ecosystems. Explore more about the long-term monitoring systems here.

Understanding the Interactions Between Forests and the Atmosphere

Flux Quantification

Response Assessment

Model Parameterization

Highlight : Long-term monitoring of tree water flow in Khao Yai National Park in Thailand

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