Development and evaluation of an individual tree growth and yield model for the mixed species forest of the Adirondacks Region of New York, USA

Forest Ecosystems

Table 3 Key plot– and tree–level attributes by forest

Attribute^a	N	Mean	SD	Minimum	Maximum
Dunbar Memorial Forest (DMF)
TPH	197	496.3	253.0	37.1	1779.2
SDI	197	540.4	243.1	26.9	1211.5
QMD	197	29.3	5.9	13.1	46.4
BA	197	29.4	13.8	1.1	70.6
BAL	197	17.1	8.2	0.3	42.8
PBAHW	197	56.4	44.6	0	100.0
CSI	72	17.2	0.3	16.4	18.1
Huntington Wildlife Forest (HWF)
TPH	1207	447.0	238.8	12.4	1803.9
SDI	1207	466.9	183.0	14.3	1090.5
QMD	1207	34.3	7.0	11.7	67.8
BA	1207	26.2	10.6	0.5	67.4
BAL	1207	14.9	6.6	0	41.8
PBAHW	1207	79.5	27.0	0	100.0
CSI	281	16.9	0.5	15.6	18.7
Pack Demonstration Forest (PDF)
TPH	171	837.4	381.4	24.7	2223.9
SDI	171	710.0	255.2	11.2	1346.5
QMD	171	24.6	5.7	14.1	44.8
BA	171	38.4	15.3	0.5	89.6
BAL	171	27.7	11.5	0	66.0
PBAHW	171	34.4	31.6	0	100.0
CSI	77	17.3	0.5	16.4	18.3
Pack Experimental Forest (PEF)
TPH	74	413.6	121.2	160.6	741.3
SDI	74	465.5	99.2	269.1	695.8
QMD	74	31.6	4.8	23.9	48.8
BA	74	25.9	6.1	15.5	43.6
BAL	74	15.5	4.2	8.6	29.8
PBAHW	74	94.5	20.0	0	100.0
CSI	25	17.0	0.3	16.3	17.5
Shirley Forest (SF)
TPH	328	416.6	214.3	37.1	1630.9
SDI	328	405.9	172.4	18.9	1074.4
QMD	328	26.1	4.7	15.8	40.4
BA	328	21.7	9.8	0.8	51.8
BAL	328	14.2	6.5	0.3	36.0
PBAHW	328	46.2	33.9	0	100.0
CSI	93	17.6	1.4	15.7	20.3

^a TPH is trees per ha (# ha^–1), SDI is stand density index (# ha^–1), QMD is quadratic mean diameter (cm), BA is total stand basal area (m²∙ha^–1), BAL is basal area in larger trees (m²∙ha^–1), PBAHW is the percent basal area in hardwood species (%), and CSI is the climate site index (m)