2

8-1 Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 1. .
Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 2.
Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 3a.
Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 3b
Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 4.
Comparison of Proposed Annual Allowable Cut With
Annual Allowable Cut Using Alternative No. 5.

3

4

5

6

8-3

11

17

22

26

31

A-1

Jackson & Klamath Sustained Yield Units: Location of
Timber Sales and Herbicide Application.

(Pocket Inside Back Cover)

G-1

Annual Yield for Klamath River Below Iron Gate Dam,
California.

3

4

Annual Yield for Rogue River Near Grants Pass, Oregon
Mean Monthly Discharge for Rogue River. .

CHAPTER I

Description of the Proposed Action

AUTHORITY AND GENERAL POLICY

1.

DESCRIPTION OF THE PROPOSED ACTION

The proposed action is a 10-year timber management plan for public lands administered by the Bureau of Land Management in the Jackson and Klamath Sustained Yield Units (JKSYUs, SYUs), Medford District, Oregon. In the plan, the Bureau of Land Management (BLM) proposes an annual timber harvest of 20.55 million cubic feet (approximately 120 million board feet Scribner Log rule) to be accomplished by two-stage shelterwood, clearcut, and single tree selection methods. Also included in the proposal are reforestation, herbicide application, slash disposal, road construction, thinning, and fertilization. Table 1-1 summarizes the proposal by acreage and management classes.

A 3-year timber sale plan has been prepared for the JKSYUS by the Medford District and is included in Appendix A. The plan contains preliminary estimates of volume to be harvested, miles of road to be constructed, harvest systems to be employed, acres of slash to be burned, and soil association types to be affected within each sale area. Since many of the timber sale areas (especially fiscal years 1981 and 1982) have not been field checked, the information is subject to change during preparation of final timber sale plans.

A 1-year herbicide plan has also been prepared for the JKSYUs and is outlined in Appendix B. Both plans provide a means to quantify some of the treatment listed in Table 1-1 and facilitate impact analysis in Chapter 3.

This is a proposed harvest level; final decisions with regard to land use allocation, 10-year timber management activities, and sustained yield allowable cut in the JKSYUs cannot be made until 30-days after the final environmental statement has been filed with the Environmental Protection Agency (EPA).

The proposed annual harvest is 8 million board feet (MM bd. ft.) less than the present allowable cut level.

1.1 AUTHORITY AND GENERAL POLICY

A landmark law of singular importance to the proposal is the Revested Oregon and California (O&C) Railroad and Reconveyed Coos Bay Wagon Road (CBWR) Grant Lands Act of 1937 (50 Stat. 874; 43 U.S.C 1181a., et seq.). This legislation was the first to specify sustained yield management for Federal lands. Under this act those O&C lands classified as timberlands are managed under sustained yield principles in order to provide a permanent source of timber supply, protect watersheds, regulate stream flow and to provide recreational facilities. Approximately 88 percent of the public land in the

JKSYUs is O&C land.

Intermingled public domain lands in the JKSYUS were brought under sustained yield management principles by the Bureau's 1969 application to withdraw these lands from entry under all public land laws except certain disposal acts.