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Select CD : computer support system for making tree species and reproduction cutting decisions in the… Klinka, Karel; Varga, Pal; Chourmouzis, Christine 1999

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Home  Scientia Silvica  Extension Series, Number 14, 1999  SELECT CD Computer Support System for Making Tree Species and Reproduction Cutting Decisions in the Coastal Forest of BC What is SELECT CD? Selection of tree species and reproduction methods are critical stand level decisions which affect the utility, productivity, health and visual qualities of the forest. The selections of appropriate tree species, regeneration cutting, and reproduction method are not independent, but rather interconnected decisions. For nearly every site condition there are several tree species/reproduction options available depending on the characteristics of existing stands and management goals. However, the current guides are too general and do not explicitly provide all ecologically viable options. SELECT CD is a site-specific, decision-support tool for selecting ecologically viable tree species, reproduction cuttings, and regeneration methods in the coastal forest (CDF, CWH, and MH zones). SELECT CD integrates information from several existing guides with new information from literature and recent research into a single, user-friendly resource. SELECT CD also includes a rich library of visuals and an illustrated glossary of technical terms.  What does SELECT CD look like? Since SELECT CD provides site-specific information, first the site has to be identified. The basic site unit is site modifier indicating a major departure from the typical topographic and soil conditions within a site series. The Site Identification and Diagnostic Characteristics sections provide help in identifying the site series and modifier. The Tree Species and Reproduction Method Options section provides tree species, regeneration cutting, and reproduction method options. The General Interpretations section summarizes site and species specific issues managers should be aware of. Figure 1 shows the general process of using SELECT CD, although each section can be accessed independently. Throughout the program there are hyperlinks to other relevant information or definition of terms. All information within SELECT CD, with the exception of visuals, is available in rich text files. These files can be opened in most word processing software where they can be printed, copied, or edited.  Site Identification  Diagnostic Characteristics  Figure 1. Structure of the CD-ROM  Tree Species and Reproduction Options  General Interpretations  Glossary Notes  Home  Figure 2. Screen shot of diagnostic characteristics.  Figure 3. Screen shot of tree species options screen.  Home  Site Identification Site identification starts with selecting the appropriate zone, subzone, and site series. Site series is selected using an edatopic grid as in the field guide. Site modifier is identified by answering a series of questions.  Diagnostic Characteristics Diagnostic characteristics provide a summary of distribution, soil, SNR-SMR ranges, modifiers as well as visuals of vegetation for each site series (Figure 2).  Tree Species and Reproduction Method Options The tree species and reproduction options section recommends for each site series or site modifier: tree species composition; tree distribution pattern; expected stand structure; reproduction method; and regeneration method. The options are organized according to the cutting method. SELECT CD also recommends specific options based on the site modifier and the current stand conditions (Figure 3).  General Interpretations This section provides for each site series/modifier a summary of management issues. The summary includes: viable tree species; potential productivity (site index values where available); major growth constraints; sensitivity to slashburning and compaction; potential vegetation competition; potential hazards; and suitability for timber production.  Glossary and Notes The glossary provides explanations and visuals for the terms used, and can be accessed through links or through the Glossary button. The Notes section provides more extensive information on selected topics, like partial cutting in the MH zone, natural regeneration of amabilis fir, and hardwood nurse-tree species.  How to obtain SELECT CD SELECT CD can be purchased for $50 (includes tax and shipping within Canada). Please note that the price does not contain any royalties: all proceeds are used to defray the costs of duplication and the development of updates or new versions. Please make cheques or money orders payable to “UBC, Dept. of Forest Sciences” and send to the address below. For more information contact K. Klinka or P. Varga.  Reference Klinka, K. and P. Varga. 1999. SELECT CD - A computer support system for making tree species and reproduction cutting descisions in the coastal forest of British Columbia. Forest Sciences Department, UBC, Vancouver, BC.  Scientia Silvica is published by the Forest Sciences Department, The University of British Columbia, ISSN 1209-952X CD-ROM developed by: Karel Klinka (klinka@interchange.ubc.ca) and Pal Varga (pvarga@interchange.ubc.ca) Extention series editor: Karel Klinka Extention series produced and designed by: Christine Chourmouzis (chourmou@interchange.ubc.ca) Financial support: Forest Renewal British Columbia Copies available from: www.forestry.ubc.ca/klinka, or K. Klinka, Forest Sciences Department, UBC, 270-2357 Main Mall, Vancouver, BC, V6T 1Z4  

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