California Code of Regulations › Title 14 - Natural Resources › Division 1.5 - Department of Forestry and Fire Protection › Chapter 4 - Forest Practices › Subchapter 7 - Administration › Article 4 - Timber Site Classification › Section 1060 - Site Classification

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The Site Classification system of productive potential of
						Timberland for administration of the Act and Rules thereunder is set forth in
						the table hereinafter:
TIMBER SITE CLASSIFICATION TABLE
Young Growth
								Redwood
1
Douglas
								fir
2
Ponderosa Pine Jeffery Pine, Mixed Conifer & True
								Fir
3
Site Class
Site
								Index4
Site
								Index4
Site
								Index4
Site
								Index5
I
feet @ 100 yrs. 180 or
								more
meters @ 100 yrs. 54.86 or more
feet @
								100 yrs. 194 or more
meters @ 100 yrs. 59.12 or
								more
feet @
100 yrs.
114 or
								more
meters @ 100 yrs 35.11 or more
feet @ 300
								yrs 163 or more
meters @ 300 yrs. 49.68 or more
II
155-179
47.24-54.56
164-193
49.99-58.83
93-113
28.35-34.44
138-162
42.06-49.38
III
130-154
39.62-46.94
134-163
40.84-49.68
75-92
22.86-28.04
113-137
24.44-41.76
IV
105-129
32.00-39.32
103-133
31.39-40.54
60-74
18.29-22.56
88-112
26.82-34.14
V
Less than
								105
Less than 32.00
Less than
								103
Less than 31.39
Less than
								60
Less than 18.29
Less than
								88
Less than 26.82
1 Lindquist, James L., and Marshall N. Palley. Empirical
						yield tables for young-growth redwood, Calif. Agri. Exp. Stn. Bull. 796, 47 pp.
						1963 (Site index based on average height of Dominant trees at breast height age
						of 100 years). Use in young growth redwood stands in which more than 20% of the
						stand by basal area is redwood and when sufficient Dominant redwood trees are
						available to determine site index.
2 McArdle, Richard E., and Walter H. Meyer. The yield of
						Douglas fir in the Pacific Northwest. USDA Tech. Bull. 201, 74 pp. Rev. 1961.
						Adjusted to average height of Dominant trees after Forest Research Note No. 44,
						Pacific Northwest Forest and Range Experiment Station, by Forest Survey, Calif.
						Forest and Range Exp. Stn. 1948 (Site index based on average height of Dominant
						trees at age 100 years). Use in young growth redwood stands in which 20% or
						less of the stand by basal area is redwood or when sufficient Dominant redwood
						trees are not available to determine site index. Use also in old growth redwood
						stands. In such cases, measure Douglas-fir trees for determining site index.
						Also use for Sitka spruce, grand fir, hemlock, bishop pine, and Monterey pine
						stands.
3 Dunning, Duncan. A Site Classification for the
						mixed-conifer selection forests of the Sierra Nevada. USDA Forest Serv. Calif.
						Forest and Range Exp. Stn. For. Res. Note 28, 21 pp. 1942 (Site index based on
						average height of Dominant trees at age 100 and 300 years). Use also for
						lodgepole pine stands. For old growth stands use height of Dominants at age 300
						years.
4 Average total height in feet and meters of Dominant
						trees at 100 years of age.
5 Average total height in feet and meters of Dominant
						trees at 300 years of age.
1.
						Editorial correction of table headings (Register 96, No. 50).
2.
						Change without regulatory effect amending section filed 10-31-2017 pursuant to
						section 100, title 1, California Code of
						Regulations (Register 2017, No. 44).
Note: Authority cited for Article 4 (Section
						  1060): Sections
						  4528(d)
						  and
						  4551,
						  Public Resources Code. Reference: Section
						  4528(b),
						  Public Resources Code.