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Kalikasan Philippines
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Manayan Farm, Malalam, Ilagan

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Farm 04, Cadu, Ilagan

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Hilltop, Santo Tomas, Naguilian

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Cadu, Ilagan Farm 03

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Property near IDGH

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What is an ecosystem-sustainable "in situ (Localized) Irrigation System"?

To define what an ecosystem-sustainable "in situ (Localized) Irrigation System" is, it is important to understand what it is not or what it should not be. For wet tropical ecosystems, like the Philippines, an ecosystem-sustainable "in situ (Localized) Irrigation System" will:

  1. Integrate the principles that ensure the stability and sustainability of the tropical rainforest ecosystem
  2. Focus on rainwater harvesting (RWH), treatment and storage; conservation, wastewater-treatment and recycling
  3. Address the issues associated with "conventional irrigation system"
  4. Avoid drawing water from underground reservoirs; instead will integrate groundwater re-charge as a foundation to help build a healthy ecosystem that would be ready  to cope with seasonal changes, climate change, global warming as well as the impact of El Niño and La Niña.
  5. Integrate micro-irrigation technologies but it is not synonymous nor completely dependent on micro-irrigation systems 
Eugenio-Magano Cadu Farms Area
Fig. 01. Eugenio-Magano Cadu Farms Area.  The varied terrains in the barangay of Cadu and adjacent areas consist mostly rolling terrain used for pasture and corn cultivation with a few scattered areas of flat farmlands used for rain-fed rice cultivation. The area and the larger area surrounding the lands shown in the map are either not suitable for conventional irrigation and lack of funding preclude construction of conventional irrigation system.  This a potential region that may be developed for an ecosystem-sustainable "in situ (Localized) Irrigation System" using rainwater harvested during the rainy season; stored in ponds constructed in strategic areas within the region to allow localized distribution of the collected rainwater, for use during the long dry season. One of the main goals of  "in situ (Localized) Irrigation System" is to maximize groundwater re-charge within the local area.  This will enhance the ability of the farmlands to cope with any prolonged and severe dry seasons, especially during the occurrence of severe and prolonged duration El Niño, that historically could last up to two years. 

An ecosystem-sustainable "in situ (Localized) Irrigation System" will address the question: How can ALL the excess rainwater during the rainy season be harvested, treated, and stored for use during the dry season -- for human consumption, farm production, animal husbandry, and, aquaculture?   

In wet tropical countries like the Philippines, with an alternating long dry season and rainy season, universal implementation of an ecosystem-sustainable "in situ (Localized) Irrigation System" will significantly mitigate the disastrous impact of flash-floods common during the rainy season, especially during a typhoon or during severe and prolonged duration La Niña; was well as, eliminate drought during the dry season or even during the advent of severe and prolonged duration El Niño.