The  Kumbakkan Oya  Watershed  on Maragalakanda <ul><li>The streams flowing down from the Maragalakanda mountain range in ...
Project Site on Margalagalakanda In 2001, Before restoration In 2003, After restoration
<ul><li>Before……………. </li></ul><ul><li>The pilot project to establish a demonstration model in watershed restoration began...
<ul><li>Steps taken in restoration….. </li></ul><ul><li>As a precursor to landscape design, many ponds were set up along t...
Gully vegetation, then and now <ul><li>The three gullies were planted with vegetation akin to the riparian zone.  </li></u...
Indicators of Success… Increase in Jane Nona’s Income
Increase in Soil Moisture Retention Research conducted on the increase in moisture retained in the soil after the applicat...
Increase in surface biodiversity Amphibians are excellent indicators of increase in soil moisture . <ul><li>When the Proje...
Water Quality <ul><li>With the increasing degradation to the riparian zone is seen a decrease in the biodiversity of the s...
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Watershed Restoration In Maragalakanda, Moneragala, Sri Lanka

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  • Hi,
    Great job done !.
    I am a resident of Monaragala, living in another watershed in the district. I'd like to implement some activities regarding our watershed too.
    I would like to request information about the procedure you adopted, in this program.
    Sincerely,
    Nirodha
       Reply 
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Watershed Restoration In Maragalakanda, Moneragala, Sri Lanka

  1. 1. The Kumbakkan Oya Watershed on Maragalakanda <ul><li>The streams flowing down from the Maragalakanda mountain range in Moneragala flow into the Kumbakkan Oya. </li></ul><ul><li>These streams supply the people of Moneragala town with drinking water. </li></ul><ul><li>The forest cover on these mountains has been destroyed mainly due to non traditional chena cultivation. </li></ul>
  2. 2. Project Site on Margalagalakanda In 2001, Before restoration In 2003, After restoration
  3. 3. <ul><li>Before……………. </li></ul><ul><li>The pilot project to establish a demonstration model in watershed restoration began in 2001. </li></ul><ul><li>The site chosen was the home garden of Jane Nona. </li></ul><ul><li>This 8 acre garden was completely degraded with no trees, poor soil, no water and no biodiversity. </li></ul><ul><li>The farmer’s annual income from practicing chena cultivation was not more than Rs. 7000.00 per year. </li></ul><ul><li>After…………… </li></ul><ul><li>The primary step taken was the creation of shade. </li></ul><ul><li>In 2 years, more than 25% shade cover was established. </li></ul><ul><li>The land management changed to analog forestry. </li></ul>
  4. 4. <ul><li>Steps taken in restoration….. </li></ul><ul><li>As a precursor to landscape design, many ponds were set up along the three dead gullies that tracked through the land. </li></ul><ul><li>The disturbed natural forest that was located behind the property was fast being cur down by the farmer. </li></ul><ul><li>A buffer zone was created using trees and plants from the forest itself. </li></ul>Building the first pond After two years Buffer Zone created
  5. 5. Gully vegetation, then and now <ul><li>The three gullies were planted with vegetation akin to the riparian zone. </li></ul><ul><li>After two years, a lush, dense canopy had formed comprising of kitul, puwak, Goraka, Malaboda and Eriya. </li></ul><ul><li>This is the most important aspect in watershed restoration. </li></ul>
  6. 6. Indicators of Success… Increase in Jane Nona’s Income
  7. 7. Increase in Soil Moisture Retention Research conducted on the increase in moisture retained in the soil after the application of analog forestry demonstrated that there was a steady increase after the establishment of shade.
  8. 8. Increase in surface biodiversity Amphibians are excellent indicators of increase in soil moisture . <ul><li>When the Project began, no amphibians were seen in the drought. After 2 years, these frogs/toads began to appear even in the drought. </li></ul><ul><li>Skinks are very good indicators of increase in soil fertility. The increase in populations means that there habitat conditions have increased. </li></ul>
  9. 9. Water Quality <ul><li>With the increasing degradation to the riparian zone is seen a decrease in the biodiversity of the streams. </li></ul><ul><li>In the case of fresh water fish, definite migratory patterns can be seen on a seasonal basis. </li></ul><ul><li>Only the endemic species, Garra ceylonensis, Puntius bimaculatus and Channa orientalis can be used as definite indicators of water quality. </li></ul>Garra ceylonensis

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