Determining the transition from juvenile to mature wood microfibril angle in lodgepole pine: a comparison of six different two-segment models

Table 1 Stand treatment and site descriptions for the six study sites

Name/location	Treatment year	Age at treatment	Treatments used	Nutrient regime	Moisture regime
Juvenile spacing trials
Teepee Flat 51°54.1′ N, 115°11.2′ W	1967	25	8,000 sph (1.1 m spacing)	Medium rich	Mesic
			4,000 sph (1.6 m spacing)
			1,000 sph (3.2 m spacing)
Teepee North 51°53.8′ N, 115°09.7′ W	1967	25	8,000 sph (1.1 m spacing)	Medium	Submesic
			4,000 sph (1.6 m spacing)
			1,000 sph (3.2 m spacing)
Mid-rotation thinning trial
MacKay 53°32.7′ N, 115°32.3′ W	1954	22	750 sph	Medium poor	Mesic
			2,600 sph
			11,000 sph (unthinned)
Late-rotation thinning trials
Cranbrook 49°25.0′ N, 115°37.1′ W	1993	65	4 m spacing (625 sph)	Medium poor	Mesic–submesic
			Unthinned (2,174 sph)
			0 or 480 kg/ha (35-0-0-105)
Parson 50°59.3′ N, 116°41.2′ W	1993	65	5 m spacing (400 sph)	Medium	Mesic
Parson 50°59.3′ N, 116°41.2′ W	1993	65	Unthinned (1,375 sph)	Medium	Mesic
Factorial fertilization and thinning trials
McCardell 53°11.8′ N, 117°11.1′ W	1984	40	5,300 sph unthinned	Medium poor	Mesic
			2,100 sph thinned
			0, 180, or 360 kg/ha N (ammonium nitrate)

ISSN: 1297-966X