Article Figures & Data
Figures
- Figure 1.
Boles of 8 trees from the urban forest in Angeles City, Philippines surrounded by hardscape. (A) Acacia auriculiformis; (B) Albizia saman; (C) Mangifera indica; (D) Manilkara zapota; (E) Premna odorata; (F) Spathodea campanulata; (G) Swietenia macrophylla; (H) Terminalia catappa.
- Figure 2.
The diel cycle of stem carbon dioxide efflux for 8 tree species from the urban forest in Angeles City, Philippines in November 2021. Each circle marker is a mean of 3 measurements. (A) Acacia auriculiformis; (B) Albizia saman; (C) Mangifera indica; (D) Manilkara zapota; (E) Premna odorata; (F) Spathodea campanulata; (G) Swietenia macrophylla; (H) Terminalia catappa.
Tables
- Table 1.
Tree height and bole diameter (measured at 30 to 40 cm high) for 8 tree species growing in Angeles City, Philippines in November 2021. H = hardscape cover; GM = grass or mulch cover.
Species Family H height (m) GM height (m) H diameter (cm) GM diameter (cm) Acacia auriculiformis Fabaceae 12.4 12.5 38 39 Albizia saman Fabaceae 14.5 14.4 83 82 Mangifera indica Anacardiaceae 10.6 10.2 34 35 Manilkara zapota Sapotaceae 8.4 8.2 37 36 Premna odorata Lamiaceae 8.8 8.6 42 41 Spathodea campanulata Bignoniaceae 7.9 8.1 37 39 Swietenia macrophylla Meliaceae 9.2 9.4 38 40 Terminalia catappa Combretaceae 8.5 8.3 37 38 - Table 2.
Environmental characteristics of 8 tree species growing in Angeles City, Philippines in November 2021. HR = hour; RH = relative humidity.
Species Sunrise (HR) Sunset (HR) Maximum RH (%) Minimum RH (%) Maximum temperature (°C) Minimum temperature (°C) Acacia auriculiformis 05:55 17:27 89 59 32.8 25.0 Albizia saman 05:53 17:28 94 62 28.9 23.9 Mangifera indica 05:57 17:25 94 68 30.0 25.6 Manilkara zapota 05:57 17:25 94 68 30.0 25.6 Premna odorata 05:55 17:27 89 59 32.8 25.0 Spathodea campanulata 05:57 17:25 94 68 30.0 25.6 Swietenia macrophylla 05:53 17:28 94 62 28.9 23.9 Terminalia catappa 05:55 17:27 89 59 32.8 25.0 - Table 3.
Factorial ANOVA values for F-test and associated P-value for the main factor of soil surface type (S), the main factor of day versus night (T), and the interaction between the 2 factors (S × T).
Species Surface type F1,12 Surface type P Time of day F1,12 Time of day P S × T F1,12 S × T P Acacia auriculiformis 4.39 0.058 233.88 < 0.001 8.96 0.011 Albizia saman 32.39 < 0.001 1217.20 < 0.001 44.63 < 0.001 Mangifera indica 2082.69 < 0.001 122.08 < 0.001 122.08 < 0.001 Manilkara zapota 2499.43 < 0.001 168.00 < 0.001 192.86 < 0.001 Premna odorata 1344.14 < 0.001 89.29 < 0.001 89.29 < 0.001 Spathodea campanulata 3051.92 < 0.001 387.92 < 0.001 467.31 < 0.001 Swietenia macrophylla 1098.69 < 0.001 144.23 < 0.001 122.08 < 0.001 Terminalia catappa 1382.40 < 0.001 86.40 < 0.001 60.00 < 0.001 - Table 4.
The percentage increase in daytime stem carbon dioxide efflux (Es) above that of night-time Es for 8 tree species growing in Angeles City, Philippines in November 2021.
Species Grass or mulch Hardscape Acacia auriculiformis 39% 50% Albizia saman 29% 78% Mangifera indica 29% 55% Manilkara zapota 61% 112% Premna odorata 50% 79% Spathodea campanulata 42% 95% Swietenia macrophylla 29% 56% Terminalia catappa 38% 56%
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