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Table 1 Regression equations of the CO2 absorption responses to vapor pressure deficit

From: Investigating carbon dioxide absorption by urban trees in a new park of Bangkok, Thailand

Species

Season

Fitting equation

r2

p

n

Millingtonia hortensis

Both

\( y = 25.59 \times \exp \left( { - 0.5 \times \left( {\frac{x - 1.35}{1.08}} \right)^{2} } \right) \)

0.63

0.007

13

Afzelia xylocarpa

Both

\( y = 7.87 \times \exp \left( { - 0.5 \times \left( {\frac{x - 1.58}{0.97}} \right)^{2} } \right) \)

0.43

0.04

14

Dalbergia cochinchinensis

Dry

\( y = 10.22 - 4.3 \times \ln (x) \)

0.65

0.016

8

Tabebuia rosea

Dry

\( y = 33.61 - 14.79 \times \ln (x) \)

0.86

0.003

7

Lagerstroemia floribunda

Wet

\( y = - 4.61 + 36.95x - 8.31x^{2} \)

0.61

0.02

7

Dipterocarpus alatus

Wet

\( y = 24.7 \times \exp \left( { - 0.5 \times \left( {\frac{x - 1.2}{0.69}} \right)^{2} } \right) \)

0.81

0.03

6

Bauhinia purpurea

Wet

\( y = 25.2 \times \exp \left( { - 0.5 \times \left( {\frac{x - 1.71}{0.81}} \right)^{2} } \right) \)

0.84

0.03

6