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Published byEgbert Nigel Barton Modified over 9 years ago
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Why organize LGUs for watershed management? 2 nd Jalaur Watershed Stakeholders’ Assembly December 20, 2005 Jessica Calfoforo Salas, Co-Chair TWG of Iloilo Wateshed Management Council
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The Natural Untreated Watershed
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Runoff water spreads over landscape through a network of rills and gullies to the canals Entire landscape is moistened but there is little absorption in the soil profile. Most of the rain water flows out resulting in erosion and expansion of rills and gullies. Crop yields fluctuate with monsoon and during drought years. Crops suffer substantially.
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There is little green fodder on grazing grounds Trees have stunted growth Drinking water is diminishing. Degradation of natural resources results in poverty, malnutrition, hunger, illiteracy, etc.
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Treated Watershed For Specific Purpose
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Watershed treated for a specific purpose (NGAs) The objective of maintaining a watershed for a reservoir for domestic use, irrigation, hydro- electric power: maximum water and minimum silt should reach the reservoir. Sole disposal of rainwater through diversion drains, contour bunds, waste weirs, grassed water ways, drop structures and series of check dams in the drainage line to detail silt and allow water to pass downstream. This approach succeeded in temperate climates where rainfall is equitably distributed but in tropical areas, it is not successful.
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With emphasis on safe disposal of water, there is little impact on recharge. Contour bunds are difficult to make due to small holdings and straight property boundary lines Production system is not the primary concern. Structures are costly and require regular maintenance
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Integrated Watershed Management
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Watershed with Integrated management Objective is conservation of water and spreading the benefit of water during rainy season Collection of rainwater in sunken ponds (natural & dugout) promoting the recharge of sub surface water (open well) or ground water are the main hydrological principles.
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Maximum possible surface flow should be converted into sub- surface flow to moisten the soil profile and promote deep percolation Main devices are village ponds, wells, trenches, and vegetative hedges and percolation ponds all over landscape. Minimize flow to the drainage line. This is a holistic principle to collect retain and use rainwater for human and livestock drinking, domestic use, life-saving irrigation, vegetable cultivation and initial watering of horticultural and forest trees.
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Availability of water is improved permitting its multiple use. Crop loss during drought years is minimized. Growth of pasture and establishment of trees is facilitated Higher yield of food, fodder, fuel and small timbers initiates socio-economic rehabilitation Improved availability of water in the foundation of growth and development.
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The Jalaur Watershed 1,248 km 2 catchment area 8 Sub Watersheds: 1. Ulian-Alibunan Watershed 2. Magapa-Suage Watershed 3. Janipa-an – Jelicuon Watershed 4. Jalaud Watershed
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5. Asisig-Lamunan Watershed 6. Tabun-ak Watershed 7. Sigangaw Watershed 8. Maniniw-Abangay Watershed
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INSTITUTIONAL ARRANGEMENT Members of the Jalalur Watershed Management Board 1. Representative of Ulian-Alibunan Watershed 2. Representative of Magapa-Suage Watershed 3. Representative of Janipa-an Jelicuon Watershed 4. Representative of Jalaud Watershed 5. Representative of Asisig-Lamunan Watershed
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6. Representative of Tabun-ak Watershed 7. Representative of Sigangaw Watershed 8. Representative of Maniniw-Abangay Watershed 9. Bulabog Puti-an PAMB 10. Mt. Baloy National Park PAMB 11. Representative, Jalaur River Bank at Calinog 12. Representative, Jalaur River Bank at Passi 13. Representative, Jalaur River Bank at San Enrique 14. Representative, Jalaur River Bank at Duenas 15. Representative, Jalaur River Bank at Dingle
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16. Representative Jalaur River Bank at Pototan 17. Representative Jalaur River Bank at Dumangas 18. Representative, Jalaur River Bank at Barotac Nuevo 19. Representative, Jalaur River Bank at Zarraga 20. Representative, Jalaur River bank at Tapiz, Capiz 21. Representative Jalaur Riverbank at Valderrama
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Ulian-Alibunan Watershed Municipalities Lambunao Calinog Dingle Duenas
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Magapa-Suage Watershed Municipalities Maasin Janiuay Badiangan Mina Pototal
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Janipa-an Jelicuon Watershed Municipalities Cabatuan Mina New Lucena Zarraga Leganes
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Jalaud Watershed Municipalities Barotac Nuevo Dumangas
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Asisig-Lamunan Watershed Municipalities Bingawan Passi San Enrique San Rafael Dumalag Capiz
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Tabun-ak Watershed Municipalities Anilao Dingle San Enrique
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Sigangaw Watershed Municipalities Mina Pototan Zarraga
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Maniniw-Abangay Watershed Municipalities Lambunao Badiangan Duenas Dingle Pototan
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Jalaur River Bank Municipalities
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Passi Calinog San enrique Duenas Dingle Pototan Dumangas Barotac Nuevo Zarraga Tapas, Capiz Valderrama, Antique
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The watershed management structure is only a shell. What will make a difference are the actions in each barangay.
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START YOUR BARANGY INFORMATION CENTERS (BICs)
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