RIVER BASIN CONTROL OFFICE Formulation of In tegrated River Basin Management and Development Master Plan (IRBMDMP) for Tagum-Libuganon River Basin DDRAFT FFINAL RREPORT VVOLUME IIII MMAIN RREPORT August 2014 Table of Contents Formulation of an Integrated River Basin Management and Development Master Plan for Tagum-Libuganon River Basin TABLE OF CONTENTS Abbreviations ...................................................................................................................... vi CHAPTER 1 INTEGRATED WATERSHED MANAGEMENT PLAN .................... 1-1 1.1 INTRODUCTION ............................................................................... 1-1 1.2 SITUATIONAL ANALYSIS................................................................. 1-7 1.2.1 Remaining Natural Forest Cover ............................................ 1-7 1.2.2 Land Classification .................................................................. 1-7 1.2.3 Land Uses and Vegetative Cover ........................................... 1-8 1.2.4 Brushland, Grassland, Open, and Cultivated Areas ............. 1-13 1.2.5 Water Management ............................................................... 1-13 1.2.6 Vulnerable Areas ................................................................... 1-13 1.2.7 Land Tenure and Tenurial Instruments ................................. 1-20 1.2.8 The National Greening Project (NGP) .................................. 1-24 1.3 SLOPE ............................................................................................. 1-25 1.4 ELEVATION ..................................................................................... 1-26 1.5 STRATEGIC SIGNIFICANCE AND IMPORTANCE ....................... 1-28 1.6 WATER RESOURCES IN THE WATERSHED ............................... 1-29 1.7 OUTPUT OF STAKEHOLDERS CONSULTATION PLANNING WORKSHOPS IN THE WATERSHED SECTOR ........................... 1-30 1.7.1 Scope and Limitations of the IWMP ...................................... 1-30 1.7.2 Stakeholders Objective and Alternative Strategies .............. 1-31 1.8 VISION AND MISSION STATEMENT ............................................. 1-31 1.8.1 Vision ..................................................................................... 1-31 1.8.2 Purpose and Mission ............................................................. 1-32 1.8.3 Summary of Goals and Objectives ....................................... 1-32 1.9 MANAGEMENT AND DEVELOPMENT STRATEGIES FOR THE TAGUM-LIBUGANON RIVER BASIN ........................... 1-34 1.9.1 Management of Remaining Forest Cover ............................. 1-34 1.10 MANAGEMENT OF OPEN CANOPY, BRUSHLAND, GRASSLAND, AND CULTIVATED AREAS .................................... 1-36 1.11 PROPOSED DEVELOPMENTAL ACTIVITIES FOR PRODUCTION AND PROTECTION FORESTS ............................. 1-36 1.11.1 Protection Forests ................................................................. 1-36 1.11.2 Production Forests ................................................................ 1-37 1.12 ECOTOURISM DEVELOPMENT .................................................... 1-39 1.13 COLLABORATION WITH VARIOUS STAKEHOLDER AND CLOSING OPEN ACCESS AREAS ....................................... 1-40 1.14 REHABILITATION THROUGH THE TENURE HOLDER ............... 1-40 1.15 MANAGEMENT OF WATER SOURCES AND WATER BODIES ............................................................................................ 1-41 1.16 MANAGEMENT OF ALLOCATED FORESTLANDS/ UPLAND ECOSYSTEMS ................................................................ 1-41 1.17 MANAGEMENT OF FRESHWATER ECOSYSTEMS .................... 1-42 1.17.1 Rehabilitation of Riverbanks ................................................. 1-42 1.17.2 Stream Bank Stabilization ..................................................... 1-43 1.18 SUPPORT ACTIVITIES ................................................................... 1-43 1.18.1 Information, Education, and Communication ........................ 1-43 1.18.2 Linkaging and Networking ..................................................... 1-44 1.18.3Research and Development .................................................. 1-44 1.19 ENVIRONMENTAL BENEFITS ....................................................... 1-45 Main Report i Formulation of an Integrated River Basin Management and Development Master Plan for Tagum-Libuganon River Basin CHAPTER 2 BIODIVERSITY CONSERVATION ................................................... 2-1 2.1 FLORA .............................................................................................. 2-1 2.2 FAUNA ............................................................................................... 2-1 2.3 OUTPUT OF STAKEHOLDERS CONSULTATION PLANNING WORKSHOPS................................................................ 2-3 2.3.1 Biodiversity Conservation Problems and Issues .................... 2-3 2.3.2 Stakeholders Objective and Alternative Strategies ................ 2-4 2.4 PROPOSED PROJECTS AND PROGRAMS ................................... 2-4 CHAPTER 3 CLIMATE CHANGE ADAPTATION AND MITIGATION .................. 3-1 3.1 TEMPERATURE AND RAINFALL PATTERN .................................. 3-1 3.1.1 Annual Mean Temperature ..................................................... 3-1 3.1.2 Annual Mean Rainfall .............................................................. 3-1 3.1.3 TLRB Annual Mean Temperature and Rainfall ....................... 3-2 3.2 CLIMATOLOGY ................................................................................. 3-3 3.3 TYPHOON ......................................................................................... 3-5 3.4 CLIMATE CHANGE ADAPTATION AND MITIGATION .................. 3-7 3.4.1 Potential Carbon Stock ........................................................... 3-8 3.5 PROJECTS ..................................................................................... 3-10 CHAPTER 4 WATER RESOURCES MANAGEMENT ......................................... 4-1 4.1 WATER RESOURCES ...................................................................... 4-1 4.2 WATER BALANCE ............................................................................ 4-2 4.2.1 Water Balance Assessment and Analysis .............................. 4-4 4.3 DEPENDABLE FLOW ....................................................................... 4-5 4.4 IMPACT OF CLIMATE CHANGE ON WATER RESOURCES ......... 4-6 4.5 OUTPUT OF STAKEHOLDERS CONSULTATION PLANNING WORKSHOPS IN RELATION TO WATER RESOURCES MANAGEMENT ......................................................... 4-6 4.5.1 Problems and Issues confronting the Water Resources Sector .................................................................... 4-6 4.5.2 Problem Tree Analysis ............................................................ 4-7 4.6 WATER RESOURCES MANAGEMENT AND DEVELOPMENT STRATEGY ........................................................... 4-9 4.6.1 Policy Statements for Water Resources Management and Development .............................................. 4-9 4.6.2 Development and Management Strategies ............................ 4-9 4.6.3 Synthesis ............................................................................... 4-10 CHAPTER 5 RIVER AND RIVER DELTA MANAGEMENT ................................. 5-1 5.1 MAJOR RIVERS ................................................................................ 5-1 5.2 SUB-WATERSHEDS OF TLRB ........................................................ 5-1 5.2.1 Saug River ............................................................................... 5-1 5.2.2 Libuganon River ...................................................................... 5-1 5.2.3 Tuganay River ......................................................................... 5-2 5.3 ANNUAL PRODUCTION OF SAND AND GRAVEL ......................... 5-2 5.4 WATER QUALITY .............................................................................. 5-3 5.4.1 Libuganon River ...................................................................... 5-4 5.4.2 Saug River ............................................................................... 5-5 5.4.3 Tagum River ............................................................................ 5-8 5.4.4 Tuganay River ....................................................................... 5-12 5.4.5 Conclusion ............................................................................. 5-15 5.5 WASTE MANAGEMENT ................................................................. 5-15 5.5.1 Solid Waste ........................................................................... 5-15 5.5.2 Wastewater ............................................................................ 5-16 Main Report ii Formulation of an Integrated River Basin Management and Development Master Plan for Tagum-Libuganon River Basin 5.6 OUTPUT OF STAKEHOLDERS CONSULTATION PLANNING WORKSHOPS.............................................................. 5-16 5.6.1 River and River Delta Problems and Issues ......................... 5-16 5.6.2 Stakeholders Objective and Alternative Strategies .............. 5-16 5.6.3 Proposed Projects and Programs ......................................... 5-17 CHAPTER 6 COASTAL AND AQUATIC RESOURCE MANAGEMENT ............. 6-1 6.1 PROFILE OF DAVAO GULF ............................................................. 6-1 6.1.1 Water Quality ........................................................................... 6-1 6.1.2 Fishes and