JapanFlux2024 JP-Khw Kahoku Experiment watershed

Kahoku experimental watershed is covered by an evergreen coniferous forest located in northern part of Kumamoto Prefecture. Its dominant species are over 50 years old of Sugi cedar and Hinoki cypress which are planted after the WW-II. The climate of this area is warm-temperate and summer is very hot and humid that daytime temperature can reach over 35 degreeC while in winter, it sometimes drops below 3 degreeC. This area is also a pluvial region that annual precipitation usually excess 2000mm. We have observed the CO2 and energy budgets of a typical Japanese cedar and cypress plantation forest in southwestern Japan using the eddy covariance method.