Roots of black spruce (tube) planted in 1966. Photo 1971. Thunder Bay. N.B. All roots below tube.

Roots of 2+2 black spruce planted 1962 in clay soil. cf slide # 523 N.B. shallow root system Limestone Lake.

Roots of 2+2 black spruce planted 1962 in clay soil. cf slide # 523 N.B. shallow root system Limestone Lake

Roots of 2+2 black spruce planted Spring 1968, after 3 yrs. N.B. the lateral roots. Limestone Lake.

Roots of Douglas fir grown as a mudpack, planted 1968 after 6 seasons n.b. root distortion. Mission.

Roots of styro-plug and Walters bullet on lodgepole pine planted 1972 after 2 years growth. c.f. slide 1044. Bowron River. Prince George.

Roots of styro-plug Sitka spruce planted Spring 1972. c.f. Slide 1105. BCFP. Port Renfrew

Roots of styro-plug Sitka spruce planted Spring 1972. c.f. Slide 1105. BCFP. Port Renfrew

Hockey stick roots of 2+2 white spruce, planted 1965, photo 1971. Aldina Twp. Thunder Bay, cf. slides # 155, 156 & 509

Roots of young poderosa pine in pumice soil (1500 yrs ago) n.b. the two-tiered root system.