Malaking Ilog and Iyam-Dumacaa Cluster 2 River Basin




Location



Area               : 1,609.26 sq. km.
Region           : Region IV-A (CALABARZON)
Provinces      : Quezon, Laguna and Batangas
Towns/Cities : 4 Cities and 18 Municipalities
Barangays      : 662
Outlet             : Tayabas Bay
Est. Pop’n       : 1,345,340
RBO                 :
RDC Reso.       : RDC Resolution No. IV – A – 153 – 2019
Forestland       : 211.18 sq. km.
A&D                  : 1398.447 sq. km.
Proposed Investment (Total)         : PHP 13,004,500,637

The River Basin is located along the southern part of Luzon, specifically within the provinces of Quezon, Laguna, and Batangas of Region IV-A (CALABARZON), and drains into Tayabas Bay. It lies between the coordinates of 121° 8' 11.24” to 121° 35' 19.77” east longitude and 13° 44' 53.06" to 14° 4' 6.51" north latitude. It covers a total of four (4) cities, eighteen (18) municipalities and 662 barangays and an area of about 160, 926 hectares. It has two principal river basins and ten minor watersheds.

VISION

Malaking Ilog Principal River Basin

“A well-managed Malaking Ilog watershed that is resilient and sustainable with empowered stakeholders”

Iyam-Dumacaa Principal River Basin

“A resilient Iyam-Dumacaa watershed that is sustainable and well – managed by its empowered, responsible, and supportive stakeholders.”

MISSION

Malaking Ilog Principal River Basin

“To rehabilitate, protect, develop and preserve the watershed’s natural resources through concerted effort of stakeholders for future generations.”

Iyam-Dumacaa Principal River Basin

“To lessen the impact of disaster risks and climate change through sustainable watershed management and capacity building.“

PROTECTED AREAS
  1. Mt. Banahaw-San Cristobal Protected Landscape
  2. Quezon Protected Landscape
WATER QUALITY MANAGEMENT AREA
  1. Iyam-Dumacaa River System
ECOSYTEM SERVICES

  • Irrigation - 58794 ha
  • Dam:
  • Malaking Ilog – San Diego, Sta. Catalina, Anstacia and Sintorisan
  • Iyam – Dumacaa – Talim I, II and III

  • Rice – Increase on production from 2015 – 2017
  • Corn - Increase on production from 2015 – 2017
  • Livestock:
  • Batangas – Largest inventory of cattle and goat
  • Quezon – Highest number of carabaos

  • Fuel – 96%
  • Oil Based – 3%
  • Renewable energy 1%

  • Flora – 75 families and 260 species
  • 175 species and 59 families

THEMATIC AREAS

  1. Water Resources Management

    • Depletion of Forest Cover
    • Environmental Pollution

    • Supply – Side Management Program
    • Water Supply Development Program
    • Water Quality Monitoring and Waste Management Program

    • PHP 9,277,795,657

  2. Forest Ecosystem and Biodiversity Management

    • Unsustainable Land Conversion
    • Illegal Occupancy
    • Forest Disturbance
    • Unsustainable Upland Agriculture

    • Adaptive Forest Ecosystem Restoration (A-FORESTORE) Program

    • PHP 1,681,622,100

  3. Wetland Management

    • Land Conversion
    • Natural Hazard
    • Destruction of Mangrove Forest
    • Riverbank Erosion

    • Biodiversity Conservation, Management and Protection Program
    • Wetland Restoration Program

    • PHP 364,900,000

  4. Disaster Risk Reduction and Management

    • Clogged Drainage Systems
    • Insufficient Drainage Capacity
    • Insufficient Flood Control Infrastructure
    • Sedimentation and Siltation of the River
    • Increased Rainfall

    • Adaptive Capacity Development Program
    • Relocation Project

    • PHP 1,355,100,000

  5. Economic Development

    • Insufficient Livelihood Opportunities
    • Low Farm Income
    • Low Supply of Food Commodities
    • Reliant on Natural Resource Based Livelihood

    • Value Chain Enhancement Program

    • PHP 86,400,000