Table 3.

Allometric relationships with intercept (a), slope (b), standard error (SE), residual standard error (RSE), R², F-value, and P-value for A. hippocastanum, P. × hispanica, R. pseudoacacia, and T. cordata in South Germany to estimate tree height (TH), crown projection area (CPA), crown diameter (CD), crown length (CL), crown volume (CV), and leaf area index (LAI) over diameter at breast height (DBH)

x	y	a	SE	b	SE	RSE	R²	F	P
A. hippocastanum
DBH	TH	0.50551	0.05	0.55557	0.01	0.18	0.72	1,541	< 0.001
	CPA	−0.477	0.10	1.23016	0.03	0.34	0.79	2,203	< 0.001
	CD	−0.11772	0.05	0.61508	0.01	0.17	0.79	2,203	< 0.001
	CL	−0.24645	0.07	0.68303	0.02	0.24	0.70	1,391	< 0.001
	CV	−0.72345	0.14	1.91319	0.04	0.49	0.82	2,594	< 0.001
	LAI	0.537219	0.03	0.076459	0.01	0.10	0.15	104	< 0.001
P. × hispanica
DBH	TH	0.79063	0.04	0.55053	0.01	0.14	0.82	2,047	< 0.001
	CPA	−0.8246	0.11	1.5046	0.03	0.37	0.84	2,296	< 0.001
	CD	−0.29154	0.06	0.7523	0.02	0.19	0.84	2,296	< 0.001
	CL	−0.005759	0.06	0.695841	0.02	0.20	0.78	1,625	< 0.001
	CV	−0.8304	0.14	2.20044	0.04	0.49	0.87	2,945	< 0.001
	LAI	1.00785	0.05	−0.09901	0.02	0.18	0.09	42	< 0.001
R. pseudoacacia
DBH	TH	0.99291	0.08	0.45798	0.02	0.23	0.52	451	< 0.001
	CPA	−0.16352	0.13	1.18144	0.04	0.40	0.71	1,005	< 0.001
	CD	0.03596	0.07	0.59191	0.02	0.20	0.71	1,012	< 0.001
	CL	0.26121	0.09	0.57188	0.02	0.25	0.58	572	< 0.001
	CV	0.09767	0.17	1.75283	0.05	0.52	0.76	1,314	< 0.001
	LAI	−1.088	0.09	0.42704	0.03	0.27	0.41	285	< 0.001
T. cordata
DBH	TH	0.59171	0.05	0.56854	0.01	0.18	0.75	1,670	< 0.001
	CPA	−1.0811	0.09	1.44802	0.03	0.32	0.86	3,286	< 0.001
	CD	−0.43202	0.04	0.72758	0.01	0.16	0.86	3,294	< 0.001
	CL	−0.19833	0.06	0.70549	0.02	0.24	0.73	1,478	< 0.001
	CV	−1.28042	0.13	2.15384	0.04	0.48	0.86	3,289	< 0.001
	LAI	0.1269	0.04	0.2281	0.01	0.14	0.43	412	< 0.001