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Will our large dams last forever?

Will our large dams last forever?
island.lk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from island.lk Daily Mail and Mail on Sunday newspapers.

Kalu Ganga , Sri Lanka , North Central , United States , Thushara Dissanayake , International Commission On Large Dams , International Commission , Large Dams , Global Reservoir , Climate Resilience Improvement Project , Chartered Engineer , கலு கங்கா , ஸ்ரீ லங்கா , வடக்கு மைய , ஒன்றுபட்டது மாநிலங்களில் , இவ்வாறு டிஸ்சநயகே , சர்வதேச தரகு ஆன் பெரியது அணைகள் , சர்வதேச தரகு , பெரியது அணைகள் , உலகளாவிய நீர்த்தேக்கம் , காலநிலை விரிதிறன் முன்னேற்றம் ப்ராஜெக்ட் , பட்டய பொறியாளர் ,

UNFORGIVING CONSEQUENCES OF DEFORESTATION

By Eng. Thushara Dissanayake
A forest is much more than a group of trees. Clearing of forests for agriculture has been an age-old practice. We accepted chena cultivation as a traditional livelihood of the rural poor. Secondly, we had ample forestlands throughout the country. Another cause of deforestation is development activities, besides logging and gem mining in some cases. Because of these acts, either legal or illegal, our forest cover has fast dwindled posing many serious environmental issues.
According to the World Food and Agriculture Organisation (FAO), by 2015, the estimated forest area in the world equaled 31 per cent of the earth’s surface area, most of which was located in tropical areas such as Africa, South America, and Indonesia. Today, according to experts, we have only 17 per cent of the forest cover left in this country. ....

United States , Thushara Dissanayake , Agriculture Organisation , Gross National Happiness , World Food , South America , Chartered Engineer , ஒன்றுபட்டது மாநிலங்களில் , இவ்வாறு டிஸ்சநயகே , மொத்த தேசிய மகிழ்ச்சி , உலகம் உணவு , தெற்கு அமெரிக்கா , பட்டய பொறியாளர் ,

Divaina - සරත් වීරසේකරට ඇමැතිකම් දුන්නේ ආණ්ඩුවේ කටයුතු හමුදාකරණයටලු... මානව හිමිකම් කොමසාරිස් නෝනා කොටින්ගේ බළල් අතක් ලෙස ක‍්‍රියා කරන බව පේනවා

Divaina - සරත් වීරසේකරට ඇමැතිකම් දුන්නේ ආණ්ඩුවේ කටයුතු හමුදාකරණයටලු... මානව හිමිකම් කොමසාරිස් නෝනා කොටින්ගේ බළල් අතක් ලෙස ක‍්‍රියා කරන බව පේනවා
divaina.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from divaina.com Daily Mail and Mail on Sunday newspapers.

Sri Lanka , Thushara Dissanayake , Sarath Matheson , Companye Silva , Companye Silva Sri Lanka , Navy Army , It Commission , Eric Gamini , Matheson Minister , Army Post , Commissioner Tiger , Silva Sri Lanka , Youth Secretary , ஸ்ரீ லங்கா , இவ்வாறு டிஸ்சநயகே , கடற்படை இராணுவம் , அது தரகு , இராணுவம் போஸ்ட் , இளைஞர்கள் செயலாளர் ,

Coastal reservoirs – A paradigm shift in development of water resources

By Eng. Thushara Dissanayake
Today, the shortage of freshwater is a worldwide problem and Sri Lanka is no exception. According to the National Water Supply & Drainage Board, 8.4% of the population still have no access to safe drinking water. The situation will worsen further with the increase in population and migration of the rural population to urban areas another salient demographic change. Agriculture is also facing a grave situation in spite of the availability of several water supply sources such as surface storage reservoirs and river systems. In addition, rainwater is directly used for agriculture mostly in the dry zone. Groundwater too is used for both drinking water supply and agriculture. Strategies like the reuse of wastewater are not common in our country yet, probably due to the lack of technology. When agricultural and other water needs are taken into account, meeting all these demands with available water sources will be far beyond reality. ....

Netherlands General , Senanayake Samudra , Sri Lanka , South Korea , Sri Lankan , Thushara Dissanayake , National Water Supply Drainage Board , National Water Supply , Drainage Board , Marina Barrage , Plover Cove , Thanneermukkom Bund , நெதர்லாந்து ஜநரல் , சேனநயகே சமுத்ரா , ஸ்ரீ லங்கா , தெற்கு கொரியா , ஸ்ரீ லங்கன் , இவ்வாறு டிஸ்சநயகே , தேசிய தண்ணீர் விநியோகி வடிகால் பலகை , தேசிய தண்ணீர் விநியோகி , வடிகால் பலகை , மெரினா சரமாரியாக , ப்லவர் கோவ் , தண்ணீர்முக்கோம் பண்ட் ,

Dams indispensable but not without adverse impacts

By Eng. Thushara Dissanayake
Human civilization began along rivers in the world over, as water is an essential natural resource for people. These early river valley civilizations include the Indus valley, the ancient Egypt near the Nile river, the Mesopotamia civilization along the Tigris and Euphrates rivers, and the Chinese civilization along the Yellow river. Later on, with the increase in population and technological advancements thousands of dams have been built to meet the water needs during dry periods by regulating river flows.
Today, according to estimates there are 59,071 large dams all over the world with a total storage of 16,201 Km3 according to registered data of International Commission on Large Dams (ICOLD). A dam is categorised as large if the height is greater than 15m. A dam of height 5-15 m is also considered as a large dam if its storage capacity is more than 3 MCM. Accordingly, Sri Lanka has around 80 large dams, 270 medium dams and over 10,000 small ....

Sri Lanka , Yellow River , China General , Eastern Province , Senanayake Samudra , Nile River , Egypt General , Mahaweli Ganga , Sri Lanka General , Thushara Dissanayake , International Commission On Large Dams , International Commission , Large Dams , ஸ்ரீ லங்கா , மஞ்சள் நதி , சீனா ஜநரல் , கிழக்கு மாகாணம் , சேனநயகே சமுத்ரா , நைல் நதி , எகிப்து ஜநரல் , ஸ்ரீ லங்கா ஜநரல் , இவ்வாறு டிஸ்சநயகே , சர்வதேச தரகு ஆன் பெரியது அணைகள் , சர்வதேச தரகு , பெரியது அணைகள் ,