Terrestrial Biodiversity Impact Assessment for the Proposed Mutsho Power Project Near Makhado, Limpopo Province©
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BEC Report Reference: SVE - MPS - 2018/07 Cell: +27 (0)82 3765 933 Report Version: 2018.04.12.03 Email: [email protected] Report Status: FINAL REPORT Tel: +27 (0)12 658 5579 TERRESTRIAL BIODIVERSITY IMPACT ASSESSMENT FOR THE PROPOSED MUTSHO POWER PROJECT NEAR MAKHADO, LIMPOPO PROVINCE© Bathusi Environmental Consulting (Botanical Assessment) In collaboration with Ecocheck Environmental Services cc Pachnoda Consulting cc (Faunal Assessment) (Avifaunal Assessment) This report was produced for Terrestrial Biodiversity EIA Assessment for Mutsho Power Project, Limpopo Province© SECTION A – ADMINISTRATION, PROJECT DETAILS & INTRODUCTARY COMMENTS This report is compartmentalised as follows: Section A Project introduction and administrative details, specialist introduction, report navigation, introductory section, Specialist Executive Summaries; Section B The biophysical environment and available biophysical information and background; Section C Botanical aspects of the receiving environment, botanical impact assessment, mitigation recommendations and EMPr contributions; Section D Mammalian, Invertebrate & Herpetofaunal aspects of the receiving environment, faunal impact assessment, mitigation recommendations and EMPr contributions; and Section E Avifaunal aspects of the receiving environment, avifaunal impact assessment, mitigation recommendations and EMPr contributions. Report: SVE - MPS - 2018/07 FINAL REPORT Version 2018.04.12.03 April 2018 i Terrestrial Biodiversity EIA Assessment for Mutsho Power Project, Limpopo Province© I REPORT NAVIGATION Section A – Administration, Project Details & Introductary Comments...................... i I Report Navigation ................................................................................................. ii II List of Figures ....................................................................................................... v III List of Tables ....................................................................................................... vi IV Project Details .................................................................................................... viii V Savannah Environmental Contact Minutiae ............................................................. viii VI Report Citation ................................................................................................... viii VII Reserved Copyright ............................................................................................. viii VIII Contributing Specialists ........................................................................................ ix IX Declaration of Independence .................................................................................. x X Indemnity ........................................................................................................... xi XI Executive Summary – Biophysical Background ......................................................... xii XII Executive Summary – Botanical Assessment .......................................................... xiii XIII Executive Summary – Faunal Assessment .............................................................. xvi XIV Executive Summary – Avifaunal Assessment ........................................................ xviii XV Acronyms & Abbreviations.................................................................................... xx XVI Glossary of Terms ............................................................................................... xxi XVII Introduction ...................................................................................................... xxii XVIII Project Synopsis ............................................................................................... xxiii XIX Project SIte Locations ........................................................................................ xxvi Section B – Biophysical Attributes of the Recieving Environment .............................. 1 SectionA 1 Land Cover & Land Use of the Region ...................................................................... 2 2 Declared Conservation Areas .................................................................................. 2 3 Land Types & geology ............................................................................................ 5 4 Surface Water ...................................................................................................... 5 5 Topography, Relief & Slopes ................................................................................... 6 6 Regional Conservation Planning .............................................................................. 7 7 Background to the Savanna Ecology ........................................................................ 9 8 Broad Weather Statistics ...................................................................................... 10 Section C – Botanical Attributes of the Recieving Environment ............................... 12 9 Abridged Method Statement ................................................................................. 13 9.1 Baseline Survey ......................................................................................... 13 9.2 Sampling Approach .................................................................................... 13 9.3 Phytodiversity Measurements ...................................................................... 14 9.4 Data Processing ......................................................................................... 14 10 Regional Floristic Attributes .................................................................................. 15 10.1 Regional Floristic Traits ............................................................................... 15 10.2 Regional Phytodiversity .............................................................................. 18 10.3 Plants of Conservation Importance ............................................................... 18 10.3.1 2018 Survey Results ............................................................................... 19 10.3.2 The age of Adansonia digitata trees .......................................................... 20 10.4 Recorded Phytodiversity (2018) ................................................................... 21 10.4.1 Species Richness – Alpha Diversity ........................................................... 21 10.4.2 Estimate-S Analysis ................................................................................ 23 Report: SVE - MPS - 2018/07 FINAL REPORT Version 2018.04.12.03 April 2018 ii Terrestrial Biodiversity EIA Assessment for Mutsho Power Project, Limpopo Province© 10.4.3 Shannon-Weiner Index (H’) ..................................................................... 30 10.4.4 Evenness Index ...................................................................................... 30 10.4.5 Simpson’s Diversity Index ....................................................................... 31 10.5 Plants with traditional and medicinal uses/ properties ..................................... 32 11 Vegetation Development Drivers ........................................................................... 34 12 TWINSPAN Results .............................................................................................. 35 13 Floristic Communities and Variations ..................................................................... 40 13.1 Combretum imberbe – Phyllanthus reticulatus ephemeral pans........................ 41 13.2 Vachellia grandicornuta – Boscia foetida eroded watercourses and calcareous plains/ washes ....................................................................................................... 41 13.3 Combretum apiculatum Grewia flavescens – Colophospermum mopane Woodland 43 13.4 Vachellia tortilis – Cienfuegosia – digitata old fields ........................................ 45 13.5 Artificial dams ........................................................................................... 45 13.6 Farming Infrastructure ............................................................................... 45 13.7 Photographic examples of various habitat types and pertinent aspects ............. 46 14 Floristic Sensitivity .............................................................................................. 54 15 Potential and Likely Impacts on The Floristic Receiving Environment ......................... 58 15.1 Nature of Potential and Likely Impacts – Direct and Indirect Impacts ............... 58 15.1.1 Quantification of Direct and Indirect Impacts on the Floristic Environment ..... 59 15.2 Nature of Potential and Likely Cumulative Impacts ......................................... 63 15.2.1 Quantification of Cumulative Impacts on the Floristic Environment ............... 63 15.3 Summary of Impact Quantification on the Floristic Environment ...................... 64 16 Analysis of Proposed Project Alternatives ............................................................... 65 16.1 Alternative 1 ............................................................................................. 65 16.2 Alternative 2 ............................................................................................. 66 16.3 Alternative 3 ............................................................................................. 66 16.4 Synthesis .................................................................................................. 66 17 Mitigation