13. Attachment 1 - CSE Reference.pdf

Appendix

Some common fixed-radius plot sizes

• 1/20th acre: 26.3 ft radius

• 1/50th acre: 16.7 ft radius

• 1/100th acre: 11.8 ft radius

• 1/200th acre: 8.3 feet radius

• 1/250th acre: 7.4 ft radius

• 1/300th acre: 6.8 ft radius

• 1/500th acre: 5.3 ft radius

Likely species to be encountered on plots

Tree Species Code white fir ABCO red fir ABMA bigleaf maple ACMA3 incense cedar CADE2 dogwood CORNU juniper JUNIP lodgepole pine PICO

Jeffrey pine PIJE sugar pine PILA western white pine PIMO3 ponderosa pine PIPO cottonwood POPUL quaking aspen POTR5

Douglas fir PSME canyon live oak QUCH2

California black oak QUKE interior live oak QUWI2 giant sequoia SEGI2

Tree (unknown species)

2TREE

Tree, deciduous

(unknown species)

2TD

Tree, evergreen

(unknown species)

2TE

Shrub Species Code manzanita ARCTO whiteleaf manzanita ARMA greenleaf manzanita ARPA6 ceanothus CEANO deerbrush CEIN3 bear clover CHFO gooseberry RIBES

Common Damages

Damage

Category Code

Description Example

11 Bark Beetles Dendroctonus, Ips

19 General Disease

21 Root / Butt diseases

Armillaria / Annosus

22 Stem Decays / Cankers

Cankers, fungus, conks

23 Parasitic Plants

Mistletoe

26 Stem Rusts White Pine Blister Rust

30 Fire

50 Abiotic Damage

Lightning, frost cracks

99 Physical effects

Broken Top / Dead Top / Forked Top /

Crook / Sweep / Checks / Bark Removal / Fire Scar

Crown ratio illustration *Crown Ratio (a.k.a. ‘percent crown)’ – ratio of the live crown to the total height of the tree (length of live crown divided by tree height). Record for all LIVE trees to the nearest percent.

Crown Class (exactly 2 characters) Record the crown class for all live trees. Crown class is the description of the relative position of the tree crown with respect to competing vegetation surrounding the tree. Crown classes are a useful descriptor of competitive status of trees in all structural types of stands. The Crown Class for each tree is determined in the context of competition for sunlight or moisture between the subject tree and its immediate environment, trees, or shrubs.

Classifications are more difficult to assign in uneven-aged stands or in plots where more than one stand is present. In these situations, classify the tree based on its immediate environment. Base your classification on how much light the tree’s crown is receiving, not its position in the canopy. The intermediate and overtopped crown classes are meant to include trees seriously affected by direct competition with adjacent trees. For example, a young, vigorous tree that is considerably shorter than other trees in the stand but not overtopped by other trees, and receives full light from above and partly from the side, is classified as dominant. The same principle applies to two-storied stands: understory trees should only be assigned subordinate crown classes if they are adjacent to overtopping trees. In plots with scattered residual overstory trees over younger trees, a considerable portion of the understory trees will be classified as dominant or codominant.

Table 1: Crown classes

Code Name Description

OP Open-grown or

Isolated

Tree crowns receive full light from above and from all sides. In even-aged stands, these trees have their crowns well above the general canopy.

DO Dominant Tree crowns receive full light from above and partly on the sides.

Crowns extend above the general level of the crown cover of others of the same stratum and are not physically restricted from above, although possibly somewhat crowded by other trees on the sides. In even-aged stands, dominant trees rise somewhat above the general canopy.

CO Codomin ant

Tree crowns receive full light from above, but comparatively little from the sides. Crowns form a general level of crown stratum, are not physically restricted from above and are crowded by other trees from the sides. In even-aged stands, codominants form the general canopy.

IN Intermedi ate

Tree crowns occupy a definitely subordinate position and are subject to strong lateral competition from crowns of dominants and codominants.

They receive little direct light from above through small holes in the canopy, but no light from the sides.

OV Overtopp ed

Tree crowns receive no light from above or from the sides and are entirely below the general level of dominant and codominant trees.

RE Remnant Trees that remain from a previous management activity or catastrophic event. The tree is significantly older than the surrounding vegetation.

Remnant trees do not form a canopy layer and are usually isolated individuals or small clumps. This definition is from the Region 6

Inventory and Monitoring System field procedures for the Current

Vegetation Survey.

Crown class illustrations

Slope position illustration

Log/Snag Decay (exactly 1 number)

This is the condition of standing dead (snag) or down dead trees (log). The corresponding descriptions are adapted from “Wildlife Habitats in Managed Forests of the Blue Mountains of Oregon and Washington,” by Jack Ward Thomas, Agriculture Handbook No. 553, USDA Forest Service, September 1979.

OP (open-grown), CO (codominant), OV (overtopped;

a.k.a. suppressed), DO (dominant), IN (intermediate), RE (remnant)

D (dominant), S (suppressed; a.k.a. overtopped), C

(codominant), I (intermediate), OG (open-grown)

Table 2: Snag decay codes and descriptions

Code Bark Heartwood

Decay

Sapwood

Decay

Limbs Top

Breakage

Bole

Form

Time

Since

Death

1* Tight, intact Minor None to incipient

Mostly present

May be present

Intact ≤5 years

2 50% loose or missing

None to advanced

None to incipient

Small limbs missing

May be present

Intact >5 years

3 75% missing

Incipient to advanced

None to 25% Few remain

Approx. 1/3 Mostly intact

>5 years

4 75% missing

Incipient to advanced

25%+ Few remain

Approx. 1/3 to 1/2

Losing form, soft

>5 years

5 75%+ missing

Advanced to crumbly

50%+ advanced

Absent Approx. 1/2+ Form mostly lost

>5 years

* Implies recent mortality, within the last 5 years

Figure 1: Snag decay classes

Canopy cover illustration