Overberg District Municipality Climate Change Summary Report
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Overberg District Municipality Climate Change Adaptation Summary Report March 2018 Version 2 Developed through the Local Government Climate Change Support Program 1 Report Submitted to GIZ Office, Pretoria Procurement Department Hatfield Gardens, Block C, Ground Floor 333 Grosvenor Street Hatfield Pretoria Report Submitted by +27 (0)31 8276426 [email protected] www.urbanearth.co.za This project is part of the International Climate Initiative (IKI) and is supported by Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH on behalf of The Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB). Version Control Version Date Submitted Comments 1 1 November 2017 Draft version with desktop review information . 2 15 March 2017 Methodology, Key District Indicators and Sector Snapshots moved from the main body of the report to Annexures. 2 Contents 1 Executive Summary .................................................................................................................... 7 1.1 Biodiversity and Environment ......................................................................................... 8 1.2 Coastal and Marine ........................................................................................................... 8 1.3 Human Health ................................................................................................................... 9 1.4 Disaster Management, Infrastructure and Human Settlements ................................... 9 1.5 Water ................................................................................................................................. 9 1.6 Cross Cutting ................................................................................................................... 10 2 Introduction ............................................................................................................................... 11 2.1 Climate Change Introduction ......................................................................................... 11 3 District Snapshot Overberg District Municipality .................................................................. 19 3.1 Overberg District Municipality Framework for a Draft Climate Change Response Strategy .......................................................................................................................... 22 4 Vulnerability Assessment Results ............................................................................................ 23 4.1 Agriculture ........................................................................................................................ 23 4.2 Biodiversity and Environment .......................................................................................... 29 4.3 Coastal and Marine .......................................................................................................... 32 4.4 Human Health................................................................................................................... 35 4.5 Disaster Management, Infrastructure and Human Settlements ...................................... 39 4.6 Water ................................................................................................................................ 42 4.7 Vulnerability Assessment Summary ................................................................................. 45 4.8 Biodiversity and Environment .......................................................................................... 48 4.9 Coastal and Marine .......................................................................................................... 50 4.10 Human Health................................................................................................................... 52 4.11 Disaster Management, Infrastructure and Human Settlements ...................................... 54 4.12 Water ................................................................................................................................ 57 4.13 Cross Cutting..................................................................................................................... 60 5 References ................................................................................................................................. 64 6 Annexure 1: Methodology ........................................................... 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Bookmark not defined. 7 Annexure 2: Key District Indicators ........................................................................................ 69 8 Annexure 3: Sector Summaries ................................................................................................ 72 8.1 Overberg DM Agriculture Sector Summary ...................................................................... 72 8.2 Overberg DM Biodiversity Sector Summary ..................................................................... 82 8.3 Overberg DM Marine and Coastal Sector Summary ........................................................ 89 8.4 Overberg DM Health Sector Summary ............................................................................. 94 8.5 Overberg DM Human Settlements Sector Summary ....................................................... 97 8.6 Overberg DM Water Sector Summary ........................................................................... 101 4 Table of Figures Figure 1: Hydrological Zones of South Africa ........................................................................................ 14 Figure 2: Temperature projections in the District Municipal Area (Western Cape Department of Agriculture 2017). ................................................................................................................................. 19 Figure 3: Mean Annual Rainfall in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 20 Figure 4: Aquifer vulnerability in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 21 Figure 5: Groundwater quality in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 21 Figure 6: Vulnerability Assessment Methodology .................................... 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Figure 7: Percentage of households involved in agricultural activities across the District Municipal Area (Statistics South Africa 2011)........................................................................................................ 73 Figure 8: Smart Agri Zones in the District Municipal Area (Western Cape Department of Agriculture 2017) ..................................................................................................................................................... 74 Figure 9: Grazing capacity in the District Municipal Area (Western Cape Department of Agriculture 2017) ..................................................................................................................................................... 75 Figure 10: Small stock density levels in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 76 Figure 11: Bovine density levels in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 77 Figure 12: Ostrich density levels in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 78 Figure 13: Crop census in the District Municipal Area (Western Cape Department of Agriculture 2017) ..................................................................................................................................................... 79 Figure 14: Wine of origin districts in the District Municipal Area (Western Cape Department of Agriculture 2017) .................................................................................................................................. 80 Figure 15: Current biome delineation in the District Municipal Area (South African