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Table 3 Parameters used for the Maestra model in each of the five stands

From: Using a stand-level model to predict light absorption in stands with vertically and horizontally heterogeneous canopies

Parameter name and definition

Stand 1

Stand 2

Stand 3

Stand 4

Stand 5

 

E. nitens

E. grandis / A. mangium

Acacia hybrid / H. odorata

C. eyrei / C. sclerophylla / C. lanceolata/ C. glauca / L. formosana

A. alba / F. sylvatica / P. abies

Rhosol: soil reflectance in PAR, NIR and thermal

0.10, 0.30, 0.05

0.07, 0.27, 0.05

0.10, 0.30, 0.05

0.11, 0.28, 0.05

0.10, 0.30, 0.05

Atau: leaf transmittance in PAR, NIR and thermal

0.093, 0.34, 0.01

0.034, 0.328, 0.01 / 0.063, 0.296, 0.01

0.063, 0.296, 0.01 / 0.03, 0.32, 0.01

C.lan 0.03, 0.26, 0.01 / Others 0.046, 0.336, 0.017

0.03, 0.26, 0.00 / 0.05, 0.30, 0.05 / 0.03, 0.26, 0.00

Arho: leaf reflectance in PAR, NIR and thermal

0.082, 0.49, 0.05

0.048, 0.247, 0.05 / 0.074, 0.206, 0.05

0.074, 0.206, 0.05 / 0.05, 0.25, 0.05

0.09, 0.33, 0.05 / 0.067, 0.382, 0.05

0.09, 0.33, 0.05 / 0.06, 0.35, 0.05 / 0.09, 0.33, 0.05

Nalpha: number of leaf angle classes from 0 to 90 degrees

5

9

5

5

5

Falpha: proportion of leaf area in each angle class

 

0.007, 0.022, 0.041, 0.064, 0.094, 0.132, 0.176, 0.219, 0.245 / 0.053, 0.130, 0.156, 0.148, 0.129, 0.111, 0.098, 0.090, 0.086

   

Avgang: mean leaf inclination angle

70

(36.7 / 31.0)*

42.2 (strip) 39.2 (circle) / 27.8 (strip) 41.5 (circle)

20/30/20/30/10/20

10/20/30

Jleaf: specification of leaf-area density distribution

1 (vertical direction)

1 or 2 (in vertical and horizontal directions)

uniform

1 (vertical direction)

1 (vertical direction)

bpt: beta dist. parameters for the vertical (and horizontal if used) leaf area density

1.647, 0.791, −0.057

5.707, 1.296, 0.711, 2.280, 1.218, 1.048 / 2.825, 0.840, 0.340, 0.0, 0.0, 0.0

uniform

1.614, 0.072, 0.358 / 2.304, 1.520, −0.050 / 2.035, 1.327, −0.066 / 3.869, 0.966, 0.518 / 2.210, 0.642, 0.185 / 1.060, 0.416, −0.210

3.53, 0.58, 0.78

  1. *not entered directly into Maestra; calculated from falpha and nalpha.