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.
Here are example data from the monitoring systems in Khao Yai National Park from April 1, 2021 to March 31, 2022. The graph shows average daily tree water flow (expressed as water flow rate per unit sapwood area in g m-2 day-1) of measured trees around the tower in the young forest (12 trees) and the old growth forest (10 trees). Explore more data from the long-term monitoring systems here.