APPENDIX 6.10-A Vegetation Baseline Report
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KITSAULT MINE PROJECT ENVIRONMENTAL ASSESSMENT APPENDICES APPENDIX 6.10-A Vegetation Baseline Report VE51988 – Appendices KITSAULT MINE PROJECT ENVIRONMENTAL BACKGROUND VEGETATION BASELINE TABLE OF CONTENTS TABLE OF CONTENTS .......................................................................................................................... I ACRONYMS, ABBREVIATIONS AND DEFINITIONS ........................................................................... I GLOSSARY ............................................................................................................................................ II EXECUTIVE SUMMARY ....................................................................................................................... III 1.0 VEGETATION ........................................................................................................................... 1 1.1 Introduction ................................................................................................................... 1 1.1.1 Objectives ........................................................................................................ 1 1.1.2 Study Area ....................................................................................................... 1 1.2 Information Sources and Methods ............................................................................... 3 1.2.1 Data Review and Compilation ......................................................................... 3 1.2.2 Regulatory Setting or Administrative Boundaries for Vegetation .................... 3 1.2.3 Field Surveys and Terrestrial Ecosystem Mapping ......................................... 4 1.3 Baseline Conditions ...................................................................................................... 4 1.3.1 Ecological Setting ............................................................................................ 4 1.3.1.1 Nass Ranges Ecoregion ..................................................................... 4 1.3.1.2 Meziadin Mountains Ecosection ......................................................... 4 1.3.1.3 Coastal Western Hemlock Wet Submaritime Submontane Variant (CWHws1) .............................................................................. 5 1.3.1.4 Coastal Western Hemlock Wet Submaritime Montane Variant (CWHws2) .......................................................................................... 5 1.3.1.5 Mountain Hemlock Moist Maritime Windward Variant (MHmm1) ............................................................................................ 5 1.3.1.6 Mountain Hemlock Moist Maritime Leeward Variant (MHmm2) ............................................................................................ 5 1.3.1.7 Mountain Hemlock Moist Maritime Parkland Subzone (MHmmp) ............................................................................................ 6 1.3.1.8 Coastal Mountain-heather Alpine Zone Undifferentiated (CMAun) ............................................................................................. 6 1.4 Biogeoclimatic Unit and Ecosystem Composition ........................................................ 6 1.4.1 Biogeoclimatic Units ........................................................................................ 6 1.4.2 Ecosystem Composition .................................................................................. 9 1.4.3 Uncommon Ecosystems ................................................................................ 19 1.4.4 Invasive Plants .............................................................................................. 19 1.5 Species at Risk ........................................................................................................... 21 1.6 Ecological Communities at Risk ................................................................................. 21 1.7 Sensitive Ecosystems ................................................................................................. 24 1.7.1 Old Forests .................................................................................................... 24 1.7.2 Wetland Ecosystems ..................................................................................... 27 1.7.3 Uncommon Wetland Ecosystems ................................................................. 30 1.7.4 Sparsely Vegetated ....................................................................................... 30 1.8 Summary .................................................................................................................... 33 REFERENCES ..................................................................................................................................... 34 Version 1.0 VE51988 – Baseline Appendix 6.10-A November 2011 TOC i KITSAULT MINE PROJECT ENVIRONMENTAL BACKGROUND VEGETATION BASELINE List of Tables Table 1: Study Area Biogeoclimatic Units .................................................................................. iii Table 1.2-1 Information Sources for Vegetation Component ........................................................... 3 Table 1.4-1: Baseline Distribution of Biogeoclimatic Units ................................................................ 7 Table 1.4-2: Baseline Distribution of Ecosystems in the Proposed Project .................................... 10 Table 1.4-3: Uncommon Ecosystems in the Local Study Area and Regional Study Area .............. 19 Table 1.4-4: Government of British Columbia Jurisdiction for Invasive Species ............................ 20 Table 1.4-5: Total of Invasive Plants by Legislation ........................................................................ 20 Table 1.4-6: Potential invasive Plants in the Vicinity of the Study Area .......................................... 21 Table 1.6-1: Baseline Ecological Communities at Risk ................................................................... 22 Table 1.7-1: Baseline Old Forests in the Local Study Area and Regional Study Area ................... 24 Table 1.7-2: Baseline Wetland Ecosystems in the Local Study Area and Regional Study Area ............................................................................................................................. 27 Table 1.7-3: Uncommon Wetland Ecosystems in the Local Study Area and Regional Study Area .................................................................................................................. 30 Table 1.7-4: Baseline Sparsely Vegetated Ecosystems in the Local Study Area and Regional Study Area ................................................................................................... 31 List of Figures Figure 1.1-1: Terrestrial Local and Regional Study Areas ................................................................. 2 Figure 1.4-1: Biogeoclimatic Units and Plot Locations Baseline Case ............................................... 8 Figure 1.4-2: Index Map for Distribution of Ecosystems Baseline Case .......................................... 14 Figure 1.4-3: Distribution of Ecosystems Baseline Case – Map 1 of 4 ............................................ 15 Figure 1.4-4: Distribution of Ecosystems Baseline Case – Map 2 of 4 ............................................ 16 Figure 1.4-5: Distribution of Ecosystems Baseline Case – Map 3 of 4 ............................................ 17 Figure 1.4-6: Distribution of Ecosystems Baseline Case – Map 4 of 4 ............................................ 18 Figure 1.6-1: Distribution of Ecological Communities at Risk for the Baseline Case ....................... 23 Figure 1.7-1: Distribution of Old Forests for the Baseline Case ....................................................... 26 Figure 1.7-2: Distribution of Wetland Ecosystems for the Baseline Case ........................................ 29 Figure 1.7-3: Distribution of Sparsely Vegetated Ecosystems for the Baseline Case ..................... 32 List of Appendices Appendix 1: Baseline Methods Appendix 2: Kitsault Ecosystem Descriptions Appendix 3: Vegetation Assessment Methods Version 1.0 VE51988 – Baseline Appendix 6.10-A November 2011 TOC ii KITSAULT MINE PROJECT ENVIRONMENTAL BACKGROUND VEGETATION BASELINE ACRONYMS, ABBREVIATIONS AND DEFINITIONS Abbreviation Definition AMEC AMEC Earth and Environmental BC British Columbia BC CDC British Columbia Conservation Data Centre BC MOFR British Columbia Ministry of Forests and Range BEC Biogeoclimatic Ecosystem Classification BGC Biogeoclimatic CF Conservation Framework CMAun Coastal Mountain-heather Alpine Zone Undifferentiated COSEWIC Committee on the Status of Endangered Wildlife in Canada CWHws1 Coastal Western Hemlock Wet Submaritime Submontane Variant CWHws2 Coastal Western Hemlock Wet Submaritime Montane Variant ha hectare Hwy Highway km kilometre LSA Local Study Area m metre MEM Meziadin Mountains Ecosection MHmm1 Mountain Hemlock Moist Maritime Windward Variant MHmm2 Mountain Hemlock Moist Maritime Leeward Variant MHmmp Mountain Hemlock Moist Maritime Parkland Subzone MFLNRO Ministry of Forests, Land and Natural Resource Operations NRA Nass Ranges Ecoregion NWWG National Wetlands Working Group proposed Project Kitsault Mine Project (the) Rescan Rescan Environmental Services Ltd. RSA Regional Study Area SARA Species at Risk Act TEM terrestrial ecosystem mapping TMF Tailings Management Facility TRIM Terrain Resource Information Management VRI Vegetation Resource Inventory < less than ≤ less than or equal to % percent Version