Estimation of leaf traits from reflectance measurements: comparison between methods based on vegetation indices and several versions of the PROSPECT model

Table 6 Minimum, maximum of observed dry matter content, corresponding RMSE and relative RMSE (rRMSE) values of estimates from PROSPECT model inversion as reported in previous studies

Data set	Reference	PROSPECT versions	Reflectance/transmittance	Species	Min (mg/cm²)	Max (mg/cm²)	RMSE (mg/cm²)	rRMSE
Baret and Fourty (1997)	[26]	P3	Reflectance + transmittance	Temperate species and crops	2.2	8.3	1.4–1.6	0.23–0.26
Feret et al. (2008): LOPEX (Hosgood et al. 1994) ANGERS (Feret 2008) HAWAII (Feret 2008)	[46, 66]	P4, P5	Reflectance + transmittance	Temperate	1.7	15.2	3.5	0.26
				Temperate	1.7	33.1	2.6	0.08
				Tropical	6.4	22.9	4.9	0.30
Feret et al. (2011)	[27]	P5	Reflectance + (transmittance)^**	Temperate and Tropical	0.8	33.1	3.1	0.09
Li and Wang (2011)	[67]	P4	Reflectance	Temperate species	2.6	11.9	2.7*	0.29
Ali et al. (2016)	[68]	P4	Reflectance + transmittance	Broadleaf	3.4	13.6	3.7*	0.36
Ali et al. (2016)	[68]	P4	Reflectance + transmittance	Conifer	1.1	29.1	8.6*	0.31
Present study		P3, P4, P5, PD	Reflectance	Wheat	4.0	6.0	2.5–3.1	1.25–1.55

* Indicates that better performances were obtained by modified PROSPECT model inversion methods
** Transmittance was not available for part of the data

ISSN: 1746-4811