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1. The current version of WINSTIMA has 3 This version is applicable to natural and thinned stands of trembling been calibrated for both natural and aspen Populus tremuloides Michx in Canada thinned stands of trembling aspen Populus tremuloides Michx in Canada for more information please contact the Canadian Forest Service Pacific Farestrp Centre 306 West Burnside Road Victoria BE Canada YEZ IMS ph 604 363 0600 Detailed stand descriptions calculated by WINSTIMA are for stands with top heights of 12 m or greater All data are entered and reported in metric units and all ages reported are total ages 2 INSTALLATION Install WINSTIMA from within Microsoft Windows 95 with the setup program provided 1 Place the WINSTIMA disk into the source floppy disk drive 2 From the Start menu choose Run then enter the letter designation of the source drive and the name of the setup program SETUP EXE Alternatively you can use the Browse option to select both the source drive and setup program A SETUP EXE lt cr gt 3 The WINSTIMA setup program will run and you will be prompted to provide the name of a destination directory where all the files required by WINSTIMA will be placed If you do not give a name a default directory named C WINSTIMA will be created and the following files will be copied to it Executable program files WINSTIMA EXE GSW EXE WINSTIMA executable program interfac2. 8 2 Generate a Tree Stand anik 11 8 3 Enter a Tree List a 12 RUN MENU enakan aa 18 91 Grow a Stand nan al Da 13 9 2 Batel ee rn ae iere umi 14 TREATMENT MENU nn nn EEE EEEN EEEE P EEEE E EEEE EFEN EEEa EE EE mentee 15 GUE E EA ONLO SEAE T 16 STAND DETAIL BUTTON esek 17 12 1 Histogram nahan alaaa a Ani tahan i 17 REPORTITA San a anos a 19 LITERATURE CITED sie tenaga Aa nan A An Banana na 20 APPENDICES Error Messages NA en An an An NN ES NI 21 Definition of TERAS e r e eas bean ie belanak 24 Command Line Keywords en nusa 25 iii iv 1 INTRODUCTION The Windows version of STIM for trembling aspen WINSTIMA integrates a graphical user interface with a FORTRAN computational program The interface written in Microsoft Visual Basic is a true Windows application that is linked to the underlying FORTRAN code The user controls the model through the Windows interface w ABOUT STIH Example displays from WINSTIMA STIM are included throughout this manual Since some displays may have been taken from different versions of WINSTIMA the output may not always agree exactly with STIM is a forest stand and tree growth model developed by the your display output Canadian Forest Service It is used for inventory updates allowable cut calculations and management planning STAND AND TREE INTEGRATED MODEL Version 3 0 for trembling aspen July 1996
3. 8 STAND INPUT MENU GENERATE A SAPLING STAND GENERATE A TREE STAND ENTER A TREE LIST 8 1 Generate a Sapling Stand This is the usual mode for entering a stand from close to bare ground conditions The minimum input reguirement is for si with optional entry for top height htop tph and w SAPLING STAND Reguired SI m 50yrs bh age Optional Htop m TPH fit ha DBHQ cm dbha The input data are used to generate a sapling stand with an htop of approximately 12 0 m which is also the start of a tree stand and the starting point for projections made by the tree and stand growth models All optional stand parameters must be representative of the stand at the time it reaches the tree stand status Generate a Sapling Stand can actually be considered a stand com pletion phase for the start of a tree stand You may find it quicker to move between fields using the Tab key Press the Ok button to summarize the stand in the yield window Alternatively a sapling stand can be specified from the command line The first value required is si followed by optional values for htop tph and dbhq SAPLING 20 generate a sapling stand with si 20 The generated stand will be a tree stand with an approximate htop 12 0 m SAPLING 20 12 0 1200 8 0 generate a sapling stand with si 20 and specify stand parameters reflective of when it becomes a tree stand htop 12 0 m tph 1200 and dbhq 8 0
4. GRAPH PARAMETERS Colour Grid Style Monochrome None Line Colour Horizontal Scatter Vertical j C Both X Wariable Variables Stand Number H i Age O Top Height Legend 1 CO Top Height Total Yolume Pan Volume Merch Yol C DBHa C MAI Legend 3 BasalArea DBHQ TPH Basal Area TPH Legend 4 Tite w RESULTS GRAPH olx Comparison of thinned vs unthinned 3007 250 200 Total Volume sol m3 ha 100 50 0 i j 0 10 20 30 40 50 60 Total Age yrs 18 PARAMETERS You can select a variety of stand level var iables from the graph parameters window and plot them against each other WINSTIMA can plot up to four stands simultaneously You must input a stand number to plot the data You can move between fields using the Tab key or the mouse Press the Plot button to plot the selected stand s on the screen Once plotted you can print a graph or store it to a file You can import this file into other Windows applications that support Windows metafiles WMF extension 12 STAND DETAIL BUTTON To view the stand detail at the current age click the Stand Detail button in the main working area window To view any other age of any stand run move the mouse to the desired stand and age on the yield window and click the mouse once The selected age will be highlighted Subseguen
5. and dbhq 7 5 cm generate a stand with si 30 htop 16 m generate a stand with si 30 htop 16 m ba 25 m2 ha tph 2500 d10 6 5 cm and cv 250 grow a stand for 50 yrs grow a stand to dbhq 25 cm report every 2 yrs grow a stand to htop 30 m report every 2 yrs grow a stand to volume 1000 m ha report every 10 yrs grow a stand to age 100 yrs cut 25 m2 ha thin from below cut 30 of ba thin from below 40 m ha remaining thin from below 75 of ba remaining uniform thin cut 1000 tph uniform thin cut 30 of tph uniform thin 750 tph remaining thin from above 75 of tph remaining thin from above delete current stand from yield window and database delete all stands from yield window and database exit STIM 27 28
6. cm 11 8 2 Generate a Tree Stand Use this to estimate stand attributes based on incomplete information This is the usual generating option for stands greater than 12 0 m where the complete tree list is not available The minimum input reguirements are site index si plus a choice of either htop or age If all three are input then age has no effect on si and htop w GENERATE A STAND Required SI plus HTOP or AGE Optional inputs include ba dbha and tph You may specify any one or TPH ha Press the Ok button to sum marize the stand on the yield window D10 cm C 2 two of these parameters but not all SI m 50yrs bh age three HTOP m 3 AGE total You can only enter d10 and cv if two of the preceding optional para Gptional meters ba dbhg and tph have BA m2 ha is been specified DBHQ cm ke 5 You may find it quicker to move between fields using the Tab key Alternatively a tree stand can be generated from the command line Following the key word the first value is si followed by htop and optionally by ba tph d10 and cv Note age and dbhg cannot be entered from the command line GENERATE 2013 generate a stand with si 20 htop 13 m GENERATE 20 13 15 1500 8 0 250 generate a stand with si 20 htop 13 m ba 15 m ha tph 1500 d10 8 0 cm cv 250 12 8 3 Enter a Tree List Choose this when a tree list is available for data entry After inputtin
7. tph or a percentage of the total stand d Amount cut remaining the amount to thin is specific to the above three choices e g a value of 1000 implies thinning to a residual tph of 1000 e d D ratio dbhq removed dbhq original a value lt 1 implies thinning from below gt 1 implies thinning from above and 1 implies uniform thinning Thin by Basal Area Trees ha Once you press the Ok button the stand is thinned and the post thinning stand is displayed as a new record with the TRT column including a T for a thin In addition the stand specifi cations box stores and updates the thinning specifications of the most recent Remainder Percentage thin Number Specified mount Specified Cut Absolute Amount cut remaining d D Ratio dbhg removed DBHg original Alternatively you can enter thinning specifications from the command line The first value is the amount to thin followed by the d D ratio THINBCA 10 0 9 cut 10 m ha thin from below THINBCP 30 0 9 cut 30 of the ba thin from below THINBRA 40 1 0 40 m ha remaining uniform thin THINBRP 75 1 0 75 of the ba remaining uniform thin THINTCA 500 1 1 cut 500 tph thin from above THINTCP 30 1 1 cut 30 of the tph thin from above 16 THINTRA 1000 1 1 1000 tph remaining thin from above THINTRP 50 1 1 50 of the tph remaining thin from above 17 11 GRAPH MENU w
8. 0 OLX DBH Distribution DBH Distribution 400 7 500 400 300 TREES TREES 300 G ina 20 na 200 La 100 400 D 0 4 4 0 Z 217 1 0 5 10 15 20 0 5 10 15 20 DBH cm DBH cm C DBH Class 10 tree groups Area 10 tree groups 0 FIK DBH Distribution DBH Distribution 300 500 250 200 TREES ha 15 100 50 4 0 5 10 15 DBH cm 1 20 DBH Class 25 tree groups 20 400 TREES 3 Giha 200 100 1 a D ZI 5 10 1 15 20 DBH cm Area 25 tree groups 13 REPORTS PRINT BUTTON Reports are available on both a stand and a tree level basis 1 Stand level report displays all present yield window information in a tabular report This option is available by selecting the Print button in the main working window WINSTIMA STAND LEVEL YIELD REPORT Date 06 19 1996 STAND SI AGE DBHO TPH BA HTOP TVOL MVOL MAI SDI TRT m yrs cm ha m2 ha m m3 ha m3 ha m3 ha yr 1 205 525 011 0 0989 0 009 42 012 3 0048 24 0006 22 01 93 104 71 1 20 35 012 3 1634 0 019 39 015 6 0123 03 0048 90 03 52 206 24 1 20 4 5 013 8 1762 0 026 24 018 2 0189 38 0109 24 04 21 266 91 1 20 455 015 4 1658 0 030 99 020 4 0245 77 0177 53 04 47 3013 35 1 20 65 017 3 1455 0 034 29 022 2 0293 39 0236 41 04 51 318 56 1 20 715 019 4 1236 0 036 63 023 7 0333 35 0288 74 04 44 325 23 2 Tree level report displays tr
9. FRDA Report No 253 STIM User s Manual for trembling aspen Version 3 0 R J de Jong A A Zumrawi2 P Boudewyn3 and J W Flewelling 1 B C Ministry of Forests ueen Charlotte City B C 2 B C Ministry of Forests Research Branch Victoria B C 3Canadian Forest Service Pacific Forestry Centre Victoria B C 4Consultant in Applied Statistics and Biometrics Kent Washington October 1996 CANADA BRITISH COLUMBIA PARTNERSHIP AGREEMENT ON FOREST RESOURCE DEVELOPMENT FRDA II HE PZ Canada Bcs Funding for this publication was provided by the Canada British Columbia Partnership Agreement on Forest Resource Development FRDA Il a five year 1991 96 180 million program cost shared equally by the federal and provincial governments Canadian Cataloguing in Publication Data Main entry under title STIM user s manual for trembling aspen version 3 0 FRDA report ISSN 0835 0752 no 253 Canada British Columbia Partnership Agreement on Forest Resource Development FRDA II Co published by B C Ministry of Forests Includes bibliographical references p ISBN 0 7726 3037 2 1 STIM Computer file Handbooks manuals etc 2 Populus tremuloides Yields Mathematical models Computer programs 3 Populus tremuloides Growth Mathematical models Computer programs 4 Forests and forestry British Columbia Mensuration Computer programs I De Jong R J ll Canadian
10. Forest Service III Canada British Columbia Partnership Agreement on Forest Resource Development FRDA II IV British Columbia Ministry of Forests V Title VI Series SD381 5 575 1996 634 9 723285 02855369 C96 960322 3 Her Majesty the Queen in Right of Canada 1996 This is a joint publication of the Canadian Forest Service and the British Columbia Ministry of Forests For additional copies and or further information about the Canada British Columbia Partnership Agreement on Forest Resource Development FRDA II contact Canadian Forest Service or B C Ministry of Forests Pacific Forestry Centre Research Branch 506 West Burnside Road 31 Bastion Square Victoria B C V8Z 1M5 Victoria B C V8W 3E7 250 363 0600 250 387 6719 a A WwW N e aD TABLE OF CONTENTS 10 11 12 13 14 INTRODUCTION ana cect cece ced es BB es tec 1 INSTALLATION Ee eee Mee en eT ee nme me nee AINI BAR AA ea 1 HARDWARE SOFTWARE REQUIRED aan 3 AS TAN esa 3 MAIN OPBING AKBAR BSN 4 5 1 Using the Mouse and Keyboard aa 5 PD MENU AL An a adan dandanan anta dann dn anta dan enta asian 6 OF TIONS MENUS eaten A a A A E E 7 Ta Program Control sabda aa un sa nun 7 T2 Growth Control an INN NN 8 7 3 Default Parameters eee ee eee ee ees 9 TA PIANO E E TE AN DAN OT Te Oy eT TO eS 9 STAND INPUT MENU Sg es mem yana 10 8 1 Generate a Sapling Stand ANU 10
11. ally acceptable or default eguation for D10 changed gt this is not an error A tree list is still generated However either a solution was found but not within a certain level of tolerance or the value for d10 from the default equation had to be changed SI and top height lead to extreme age Respecify stand gt check to ensure that your combination of si and htop is reasonable Unacceptable combination of tph ba cv d10 No solution gt WINSTIMA was unable to solve for a diameter distribution with the specified parameters Try using a larger value for cv and or d10 or leave blank for default Grow a Stand You cannot enter more than one growth command gt choose only one method of growth control i e number of years or a given size Invalid value for reporting period gt must be greater than zero and less than number of years to grow Invalid value for number of years gt must be greater than zero and less than number of years to grow Invalid value for specified top height gt self explanatory Invalid value for specified volume gt self explanatory Invalid value for specified dbhq gt self explanatory 24 Reporting period greater than number of years to grow gt a previous reporting period used is greater than the current growth command Redefine the reporting period either in the grow menu or on the command line Each time reporting period is specified it remains constant for all subsegu
12. e Visual basic professional edition files GAUGE VBX THREED VBX CMDIALOG VBX GRAPH VBX GRID VBX Dynamic link libraries VBRUN300 DLL DLLSTIMA DLL COMMDLG DLL GSWDLL DLL V4MDX DLL Database files DEFAULT DBF STAND DBF TREE_LST DBF COMM_DAT DBF Database index files STAND MDX TREE_LST MDX COMM_DAT MDX 4 The setup program will create a Winstima Visual Basic ver 3 0 run time file copied to c windows system dynamic link library containing all Fortran code user defined default control options stand level database tree level database key word list database Winstima Biel Es File Edit View Help A Aa 3 a bs Comm_dat dbf Comm dat m Commdig dl Default dbf ia Gauge vbx Graph vbx Grid v folder which contains all the files listed D pm a above The setup program will also add the Winstima folder to the Programs menu Stand dbf Stand mdx Threed vbx Tree_lst dbf and a shortcut to Winstima on your In P desktop i D 8 Tree Istmdx Vdmdx dil Winstima exe 118 abject s 1 25MB 3 HARDWARE SOFTWARE REQUIRED Minimum 386SX PC with math coprocessor 4 megabytes RAM and Microsoft Windows 3 1 Recommended cpu 486DX Note STIM will run approximately 4 times faster on a 486DX than on a 386SX 4 ASSISTANCE For further assistance with STIM please contact Canadian Forest Service J W Flewelling Pacific Forestry Centre Consultant in Appl
13. ee level information in a tabular report This option is available by pressing the Print button in the Stand Detail window WINSTIMA TREE LIST REPORT Date 06 19 1996 STAND SI AGE CLASS DBH TPH BA HT TVOL MVOL m yrs cm ha m2 ha m m3 ha m3 ha 1 20 29 1 014 3 0066 0 001 06 012 4 0005 75 0003 97 1 20 25 2 012 8 0066 0 000 85 012 1 0004 52 0002 25 1 20 25 3 012 2 0066 0 000 77 TII 0004 04 0001 44 1 20 2 9 4 011 8 0066 0 000 72 011 8 0003 72 0000 91 1 20 25 5 011 4 0066 0 000 68 011 7 0003 48 0000 59 an 20 25 6 Oa 0066 0 000 64 011 6 0003 29 0000 38 1 20 25 7 010 9 0066 0 000 61 011 5 0003 12 0000 23 1 20 25 8 010 6 0066 0 000 59 011 4 0002 97 0000 13 1 20 25 9 010 4 0066 0 000 56 O 14 3 0002 84 0000 06 1 20 25 10 010 2 0066 0 000 54 011 2 0002 71 0000 01 T 20 25 11 010 0 0066 0 000 52 OLI AL 0002 59 0000 00 1 20 25 12 009 8 0066 0 000 50 011 1 0002 48 0000 00 1 20 25 13 009 6 0066 0 000 48 OTISO 0002 36 0000 00 1 20 29 14 009 4 0066 0 000 46 010 9 0002 25 0000 00 1 20 25 15 009 2 0066 0 000 44 010 8 0002 11 0000 00 21 14 LITERATURE CITED Alberta Forest Service 1985 Alberta phase 3 forest inventory yield tables for unmanaged stands Alberta Forestry Lands and Wildlife ENR Report No Dept 60a Edmonton Alberta British Columbia Ministry of Forests 1976 Whole stem cubic metre volume eguations and tables 1976 B C For Serv Victoria B C Huang S 1994 Individual tree volume esti
14. ent commands until redefined There is no stand to grow gt you must create a stand before you can grow it Tree list is too long gt The entered tree list which may include additional ingrowth records has exceeded 500 records Warning either stand will not reach desired size or memory constraints exceeded You may have tried to grow to a dbhg htop or volume that the stand will never attain or the memory constraints of the model have been reached If the former then respecify growth limits If the latter then it is recommended that you not continue with projection but clear memory by using either the DELETE or NEW commands Warning Less than 10 of stand tree array left Continuing is not recommended You must delete existing stands to free up space Continue gt You have almost reached the memory constraints of the model A 10 free space allows you to continue with the existing projection if you know it will finish soon otherwise information will be lost It is recommended that you not continue but clear memory by using either the DELETE or NEW commands Graph First second third fourth stand not found gt the stand to be plotted does not exist in memory You must specify at least one stand gt self explanatory 25 APPENDIX 2 Definition of Terms age Total age of a stand yrs ba Basal area of a stand tree or group of trees per ha m2 ha cv Coefficient of variation defined as the sta
15. etail Button 5 Command line window all valid commands are described in detail in subseguent sections and are listed in the Command Line Keywords section 6 Stand specifications box displays the current stand number site index si current stand age merchantable volume utilization limit as well as thinning specifications of the most recent thin 7 Error messages box refer to Error Messages section for a list of error messages displayed 5 1 Using the Mouse and Keyboard You will probably find it most convenient to use the mouse for moving around the interface for selecting pull down menu options and for moving between program windows Using the mouse is easy simply move the mouse cursor over the item you wish to select and press the left mouse button Several program windows reguire data entry In these windows you may find it easier to use the Tab key to move quickly from one data entry field or option button to the next particularly if there are many data to enter Where data entry windows include a spreadsheet format select the first cell with the mouse Enter the data for that cell and press the Enter key The cursor will automatically move to the next cell the order is right to left top to bottom This is the preferred method for entering tree lists You can also use the arrow keys to move between spreadsheet cells You can also use the Tab key to move between the main working area option buttons and
16. fying the reporting period a Number of years grow the stand forward for the number of years specified from the current stand age Specify the reporting period for periodic reporting minimum 1 yr up to the length of growth projection b Required DBHg Top Height or Total Vol c grow the stand forward until the specified dbhg htop or volume is reached Specify the reporting period for periodic yield reporting Reguired total age use this specification to grow the current stand forward to the specified age with yield reported once at the end of the growth projection w GROW A STAND EH Number of years Required DBHg cm Required Top Height m Required Total Yol m3 ha Required Total Age yrs Reporting Period yrs B Note Although you can move between fields using the mouse you may find it guicker to use the Tab key Only one type of growth command can be specified Alternatively you can grow a stand with a guick grow button or from the command line When using the command line the first value to enter is the year or size followed by the reporting period GROW 20 10 grow a stand for 20 yrs reporting every 10 yrs GROW 20 grow a stand for 20 yrs report once at 20 yrs GROWD 25 2 grow a stand until dbhg 25 cm reporting every 2 yrs GROWH 30 2 grow a stand until htop 30 m reporting every 2 yrs GROWV 100010 grow a stand until volume 1000 m ha rep
17. g the stand level parameters plot size si and age enter the list into the tree list spreadsheet This list can include individual trees or groups of trees by dbh class There must be a value for every dbh height and tph record entered When the list is complete Site Index m 50yrs bh age press the Ok button to sum marize the current stand Press Age total the Cancel button to abort the Plot size ha tree stand entry You can also enter an external ASCII file by choosing the Input File button This file must be in the following free format Tree ID dbh height tph with each variable de limited by a comma A tree list can be up to 500 records in length Note Although you can move between fields using the mouse you may find it more convenient to use the Tab key In the tree list spreadsheet you can move between fields using the arrow keys The enter key automatically selects the next field to the right Alternatively you can enter a tree stand from the command line Enter the plot area first followed by si total age and the name of the external file containing the tree list TREELIST 0 04 20 15 TESTI DAT specify a stand with plot size 0 04 ha si 20 total age 15 yrs and external input file containing a tree list test1 dat 13 9 RUN MENU 9 1 Grow a Stand GROW A STAND BATCH This is a multi purpose menu that enables you to grow the stand in a number of ways while speci
18. ied Statistics 506 West Burnside Road or and Biometrics Victoria B C V8Z 1M5 Kent Wash Tel 604 363 0600 Tel 206 839 1238 5 MAIN WORKING AREA STIM for trembling aspen iof x File Options Standinput Run Treatment Graph Help Grow 5 Grow 10 48 y 86 67 123 03 157 39 189 38 218 78 Stand Specs Thinning Specs Stand Thin Age SI BA Left Previous command Age TPH Left Grow 5 Merch dlim 4 d D ratio E mor messages The main window of the WINSTIMA interface is composed of 1 pull down menus 2 two quick grow buttons 3 a continually updating yield window 4 a stand detail button 5 a command line window 6 a stand specifications box and 7 an error messages box JR 2 3 Pull down menus File Options Stand Input Run Treatment and Graph described in detail in subsequent sections Quick grow buttons press a button to grow a stand for a 5 or 10 year period Yield window as a stand is updated grown or treated a new record is displayed in the yield window Yield reports can be saved to an external file with the Save As option in the File menu or printed with the Print button see Reports for a description of this printout Stand detail button the stand detail or tree list can be observed for a given stand age To select a stand age move the mouse cursor over the age of interest from the yield window then click the Stand Detail button see Stand D
19. mation procedures for Alberta methods of formulation and statistical foundations Land and Forest Services Alberta Environmental Protection Technical Report Pub No T 288 Edmonton Alberta Huang S S J Titus and T W Lakusta 1994 Ecologically based site index curves and tables for major Alberta tree species Land and Forest Services Alberta Environmental Protection Technical Report Pub No T 307 Edmonton Alberta Wiken E compiler 1986 Terrestrial ecozones of Canada Lands Directorate Environment Canada Ecological Land Classification Series No 19 22 APPENDIX 1 Error Messages Whenever a warning or error occurs a message listed below is displayed in red at the bottom of the yield window Also an error log file ERROR LOG is created in the WINSTIMA subdirectory which helps identify the source of errors this external file is for program debugging We are interested in new errors that cause STIM to abort prematurely Please inform the Forest Inventory Group at the Pacific Forestry Centre when these occur so that we may make corrections to future versions You can contact us at 604 363 0600 Enter a Tree List Both Site Index and Age must be entered gt self explanatory Enter SI between 13 m and 30 m gt self explanatory You must enter a tree list gt self explanatory Invalid plot size gt self explanatory You must enter more than one record of data gt self explanatory Numbe
20. ndard deviation divided by the mean Used here for the variable dbh dbhq Quadratic mean dbh of a stand or group of trees cm d10 dbh at the tenth percentile or minimum dbh class cm Geographic Region combines ecozone Wiken 1986 and province htop Top height of a stand defined as the average height m of the 100 largest diameter trees per ha mai Mean annual increment calculated as TVOL THINNED VOL TOTAL AGE mvol Merchantable volume of a stand tree or group of trees m ha Merchantable limits are fixed at a 30 cm stump height and a 10 cm top dib sdi Reineke s Stand Density Index defined as tph 2 471 dbhq 25 4 1 605 si Site index based on a breast height index age of 50 years tph trees per hectare tvol Total stem volume of a stand tree or group of trees inside bark including stump and top m ha 26 APPENDIX 3 Command Line Keywords TREELIST 1 0 30 15 TESTI DAT specify a stand with plot size 1 0 ha si 30 age SAPLING 30 SAPLING 30 13 2500 7 5 GENERATE 30 16 GENERATE 30 16 25 2500 6 5 250 GROW 50 GROWD 25 2 GROWH 30 2 GROWV 1000 10 AGE 100 THINBCA 25 0 9 THINBCP 30 0 9 THINBRA 40 0 9 THINBRP 75 1 0 THINTCA 1000 1 0 THINTCP 30 1 0 THINTRA 750 1 1 THINTRP 751 1 DELETE NEW EXIT total 15 and external tree list file testl dat generate a sapling stand with si 30 generate a sapling stand with si 30 htop 13 0 m tph 2500
21. ne Keywords NEW clears yield window of all runs DELETE deletes current stand from yield window PRINT prints the yield report EXIT exits WINSTIMA returns to Windows program manager 7 OPTIONS MENU PROGRAM CONTROL GROWTH CONTROL DEFAULT PARAMETERS PRECISION You can change control options at any time affecting the current run and all subsequent runs Changing control options will not affect previous runs 7 1 Program Control PROGRAM CONTROL OPTIONS x Run Integrated Model Reconciled to the Stand or Integrated Tree Tree Model Alone Pass size of dead trees from Tree Model to Stand Yes ONo Model These options define the Use Direct or Angle Method to Estimate Stand Direct Angle architecture of the model Mortality a b c d Specify number of tree classes when generating a Sapling or Tree Stand 5 Run Integrated Model two models can be run the integrated stand and tree model with the results reconciled to the stand model or the tree model which may be run on its own Pass size of dead trees passing the size of dead trees from the tree model to the stand model influences the dependency of the two models i e if you choose Yes then the stand model is dependent on the tree model s prediction of the dbhq that die Use Direct or Angle Method stand mortality can be predicted in two ways the direct method which uses an empirical equati
22. on to predict the stand basal area mortality and the angle method which uses the trajectory angle approach e g similar to Stand Density Management diagrams Specify number of tree classes selecting the number of classes to generate is only applicable when sapling or tree stands are generated This defines the number of tree classes into which the estimated diameter distribution is split Note that the more classes specified the finer the tree detail resolution however execution time is slowed and memory constraints are reached sooner The preset default choices are recommended for running WINSTIMA 7 2 Growth Control GROWTH CONTROL OPTIONS x These options control the growth of a stand a b c d e Alberta 1994 adjusted Site Index Equati Dasa ba rane O Alberta 1994 Geographic Region Boreal plain BC AL Yolume Eguation Alberta 1994 DBH Reporting Limit for Merch Volume cm 1425 Ingrowth Prediction oO None C Unthinned Stands Unthinned Thinned Site Index Equation two versions of the equation developed by Alberta Environmental Protection Alberta Forest Service 1985 Huang et al 1994 Flewelling 19961 are provided The adjusted version uses the original equation with site height converted to top height Geographic Region the model includes separate prediction equations for various combinations of ecozones Wiken 1986 and pro
23. ort every 10 yrs AGE 100 grow a stand forward until age 100 14 9 2 Batch Batch mode is an alternative to running an interactive session You can specify a series of commands that describe a stand s complete growth cycle before actually running the stand Any number of stands can be specified from within the batch option a New enter a new series of batch commands b Open read in an external ASCII file that contains all commands w BATCH FILE CREATION x Batch Commands Once in the batch file creation window you can type in keywords and values as if from the command line It is important that you enter the carriage return after the final command other wise that command will not be executed The following options are available from within this window a Run execute the series of batch commands b Cancel abort the batch session c Save save the current batch commands to an external ASCII file d Commands display the list of available key word commands 15 10 TREATMENT MENU THIN A STAND This option performs a thinning at the current age of the current stand You can specify a thin in a variety of ways a Thin by Basal Area or Trees ha thin by basal area or number of trees b Number Specified Cut or Remainder specify by the amount to cut or by the amount remaining c Amount Specified Absolute or Percentage choose whether the units are absolute m2 ha
24. r of tree classes exceeds program capacity gt WINSTIMA can handle a tree list of up to 500 records only Close the WINSTIMA window and restart Thin a Stand You must enter an amount to thin gt based on the choice of ba tph cut leave actual percent enter the amount of thin in the appropriate units You must enter a desired d D ratio gt d D 1 0 for uniform thin lt 1 0 for thin from below gt 1 0 for thin from above There is no stand to thin gt self explanatory Generate a Sapling Stand You must enter a value for site index gt self explanatory Enter SI between 13 m and 30 m gt self explanatory Error could not recover error code 2 gt WINSTIMA could not estimate the diameter distribution If you supplied a dbhg consider removing or changing that value 23 You must enter a value for top height self explanatory Invalid value for number of trees self explanatory Invalid value for dbhg self explanatory SI and top height lead to extreme age Check to ensure that your combination of si and htop is reasonable Generate a Tree Stand Both SI and top height must be entered self explanatory Invalid value for site index self explanatory Invalid value for top height self explanatory Invalid value for basal area self explanatory Invalid value for number of trees self explanatory Invalid value for CV self explanatory Note Solution either margin
25. the command line A feature of Windows programs is the use of shortcut keystrokes These can often be faster and less tiring than repetitive use of the mouse particularly when you have become familiar with the WINSTIMA interface Wherever you see an underlined character in a pull down menu or on a program button that character is part of a combination of keystrokes that will select that option In the case of main menu options the combination includes the underlined letter and the Alt key For example to select the File menu from the main menu bar press Alt To select Print from this pull down menu press p by itself on the other hand to select the Print button press Alt p selecting option buttons are like selecting pull down menus To grow a stand for 10 years simultaneously press Alt 1 NEW DELETE STAND PRINT SAVE AS EXIT a New clear the yield window of all runs Same as initiating WINSTIMA except that user defined program control and growth control options are retained b Delete Stand delete the current stand from the yield window The previously run stand becomes the current stand c Print print the yield report See Reports for a description of printout d Save As save the yield report to an external ASCII file e Exit exit WINSTIMA and return to the Windows program manager Alternatively these commands except Save As can be entered from the command line see Command Li
26. tly clicking the Stand Detail button displays the tree list at that point For a printout of the stand detail press the Print button Refer to the Reports section for a description of this printout To save the stand detail report to an external ASCII file press the Save As button Note merchantable volumes are shown for all dbh s even Class O Area those not included in the per hectare summaries section 7 2d 2 3 4 5 6 7 8 9 1 12 1 Histogram Press the Histogram button to view the diameter distribution Two display methods are provided a dbh class display and an area based display The dbh class histogram displays frequency of trees by fixed dbh classes These classes are at 1 2 or 5 cm widths depending on the range of diameters present The area based histogram displays the current tree list so that each tree group is plotted as trees ha cm dbh Therefore the total area represented under the graph corresponds to the total number of trees per hectare Although the traditional method of display is the dbh class the area based method is useful when the number of tree groups being projected is small In these cases the area based display approximates the shape of the dbh distribution better When the number of tree groups is large the methods produce similar displays 19 _ OLX
27. vinces in Canada Volume Equation two volume methods Huang 1994 B C Ministry of Forests 1976 are available All methods estimate total cubic tree volume based on dbh and height Huang s is actually a taper equation which allows for the computation of merchantable volume Merchantable volume is from a 30 cm stump height to a 10 cm top dib DBH Reporting Limit for Merch Volume you can choose from four dbh utilization limits to report merchantable volumes per hectare 12 5 17 5 22 5 and 27 5 cm Note that merchantable volumes are not computed for B C Ministry of Forests volume equations Ingrowth Prediction You can control the model s prediction of ingrowth whether for 1 Evaluation of site curves for aspen Unpubl Rep on file 8 p no stands for unthinned stands only or for all stands 7 3 Default Parameters These basic default parameters are defined every time you run STIM however you can save a single set of customized control options that can be retrieved anytime by choosing Save User The next time you run STIM you must choose Restore User if the session is to include the user saved options Restore STIM to the basic default parameters at any time by choosing Restore Basic 7 4 Precision This controls the precision of displayed numbers The default is short precision up to 2 digits to the right of the decimal Long precision provides for up to 6 digits to the right of the decimal 10
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