Section 1091.45 - Sustained Timber Production Assessment(a) Consistent with the protection of soil, water, air, fish and wildlife resources a SYP shall clearly demonstrate how the submitter will achieve maximum sustained production of high quality timber products While Giving Consideration to regional economic vitality and employment at planned harvest levels during the planning horizon. The average annual projected harvest over any rolling 10-year period, or over appropriately longer time periods for ownerships which Project harvesting at intervals less frequently than once every 10 years, shall not exceed the long-term Sustained Yield estimate for a SYP submitter's ownership.(b) Where a SYP is based upon data on file with the Director, such data shall be updated every 10 years. Proprietary information shall be treated consistent with PRC § 21160.(c) Each sustained timber production assessment shall include:(1) A summary table of Wildlife Habitat Relationships compositions and stand structure types (WHR), or comparable stand structure types within forest vegetation types with their respective acreage. For an ownership's specific stand structure types, the RPF shall provide a written description of the stand structure and characteristics which define each type, and comparisons of those types to WHR typing. The WHR system, which is herein incorporated by reference, and its uses described in "Guide to the California Wildlife Habitat Relationships System," California Department of Fish and Game, March 1988.(2) An estimate of the long-term Sustained Yield of the ownership stated in terms of board feet per year or cubic feet per year, or other reasonable measurement consistent with products chosen by the owner, and a description of how the estimate was reached. For ownerships that have not attained long-term Sustained Yield, the SYP shall estimate and justify the transition period necessary to achieve long-term Sustained Yield.(3) A projection of growth and harvest for each WHR type or comparable stand structure type within forest vegetation type over each 10 year period in the planning horizon, and a description in narrative form of the accuracy and methodology used to estimate growth.(4) A discussion of the accuracy of the inventory data for the management unit and/or ownership. Inventory data, models and growth and harvest projections utilized for harvest scheduling projections shall be available for confidential audits by reviewing agencies along with the basis for such data, including but not limited to the cruise design and sample plot data and statistical validity of such estimates. The SYP shall describe how the submitter will, over time, make reasonable progress to improve inventory estimates for the major WHR or vegetation types, with a goal of achieving standard errors that are no greater than 15% of their respective inventory estimates within the effective period of the SYP. The major WHR types include all tree-dominated habitats in size classes 4, 5, and 6 with Canopy closure classes of S,P,M, and D.(5) A description of the prescriptions applied to each stand type projected. A narrative discussion of the methods used to Project inventory, growth and harvest and WHR type or comparable stand structures type.(d) The use of Spreadsheet Assisted Resource Analysis (SARA) planning model, Cooperative Redwood Yield Project Timber Output Simulator (CRYPTOS), and California Conifer Timber Output Simulator (CACTOS) growth models and WHR types are encouraged in order to aid in the Departmental review.Cal. Code Regs. Tit. 14, § 1091.45
1. New section filed 1-7-94; operative 3-1-94 (Register 94, No. 1).
2. Amendment of subsection (c)(4) filed 11-7-96; operative 1-1-97 (Register 96, No. 45).
3. 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: Sections 4551 and 4561, Public Resources Code. Reference: Sections 4551.5, 4561, 21003 and 21068.5, Public Resources Code.
1. New section filed 1-7-94; operative 3-1-94 (Register 94, No. 1).
2. Amendment of subsection (c)(4) filed 11-7-96; operative 1-1-97 (Register 96, No. 45).
3. Change without regulatory effect amending section filed 10-31-2017 pursuant to section 100, title 1, California Code of Regulations (Register 2017, No. 44).