by Jayampathy Molligoda
Chairman, Sri Lanka Tea Board
The word “sustainability” is often distorted without being used in ecological context to get its proper meaning. In simple terms, we have the responsibility to protect the right of future generations to live in a safe environment. Similarly, Climate change can be understood as a set of alterations in the average weather caused by global warming due to the emission of greenhouse gases. Climate change phenomenon is serious, which is worse than the COVID-19 pandemic. it is the one challenge that potentially has the most severe impacts globally and on Sri Lanka. The very reason for this is that climate change affects virtually every aspect of our ‘every day today’ life, economic, social and environmental. It is a multidimensional challenge, with its impacts ranging from issues like human health, supply of safe water and food, biodiversity, economic development, etc.
(2) Systems view of life:
Modern Science has come to realize that all scientific theories are approximations to the true nature of reality. Science doesn’t have answers to natural phenomena. Mechanistic view looks at a closed view of a specific area which is a tiny part of a large system. They have dominated our culture for the past three hundred years and is now about to change. Before 1500 AD the dominant world view was that people lived in small communities and experienced nature by the interdependence of spiritual and material phenomena.
The Systems view looks at the world in terms of relationships and integration, inter-dependence of all phenomena i.e.: physical, biological, social, and cultural. Instead of concentrating on basic building blocks, the systems approach emphasizes basic principles of organization.
According to Prof. Fritjof Capra, an Austrian-born American physicist, the architect of “systems view of life” to find lasting solutions, there are solutions to the major problems of our time. They require a radical shift in our perceptions, our thinking, and our values. An “Eco system” is a living system of communities of plants and animals, microbes sharing an environment with non- living plants such as air, water, climate, soil. In my view, the above is the best illustration to understand the importance of adhering to the “system view of life” to find lasting solutions. Capra’s view is that our traditional politicians and business leaders have been unable to provide long term solutions to these problems and he welcomed the creation of social movements founded on the premises to change the current traditional sociological paradigm and to build sustainable communities.
From the systemic point of view, the only viable solutions are those that are “sustainable” Therefore, the challenge of our time is to create sustainable communities, that is, social and cultural environments in which we can satisfy our needs and aspirations without diminishing the chances of future generations. The sustainable communities need to be designed in such a way its social structures do not interfere with natures inherent ability to sustain life but support and corporate with natures inherent ability to sustain life.
(3) Structures, Processes and patterns:
The following ten points are useful in order to understand as to how the eco- system works.
1. Eco system is a living system of communities of plants and animals, microbes sharing an environment with non- living plants such as air, water, climate, soil
2. The theory of living system tries to understand this and the ecological literature deals with the basic principles of ecology (and live accordingly)
3. Nature, every organism, plant, micro-organism, cells, tissues all are in a living system.
4. All living systems need energy and food.
5. All living systems produce waste, but there is no net waste
6. Capra expresses the life of any living organism as made up of pattern, process and structure.
7. If we apply these ideas to ourselves or our organizations, we can see that in the patterns we find our identity.
8. In the processes we develop our relationships, our beliefs, our principles and behaviours becoming more conscious.
9. In the structures we become more fluid, more focused on the present moment; we become alive.
10. The building of sustainable communities is deeply connected to our search for a new sociological paradigm.
This gave rise to the concept of Complex Adaptive Systems, as a multidisciplinary concept- are considered complex because they are made-up of diverse elements which are interconnected with each other and are adaptive in that they have the capacity to change and learn from experience.
(4) Decline in tea production, market share, revenue, despite chemical application:
In this connection, we wish to state that Sri Lankan tea production has been drastically declining over a period of time, despite supplying large quantities of imported artificial fertilizer. For an example, in 2010 the total tea production was 330 million kilos, covering 222,000 hectares, wherein some 160, 000 metric tons of fertilizer per year had been used on an average basis up to date on a regular basis, however, we have ended up with only 289 million kilos of tea production in 2020, covering 253,000 hectares. The compound annual average growth rate (CAGR) was negative 1.5% and the Sri Lankan tea industry cannot sustain anymore as both quality, quantity as well as the competitiveness have drastically eroded. As a result, our market share has come down and the foreign exchange revenue which was around US $ 1.6 Billion eight years back has now come down to US $ 1,24 million/year only. As you are aware, during the period 2017 to end 2019, a large number of tea factories had to close down and many smallholders were badly affected and the new/re planting extents were less than 1%, where as it should have been at least @2% of the cultivated extent.
As a result of excessive usage of agro-chemicals, there has been a number of rejections of our Ceylon tea consignments reported from the major important markets such as Japan, EU, UK, Saudi Arabia, Taiwan etc. This situation has arisen due to detection of pesticide residues in the Ceylon Teas exported, which are over and the above the permitted maximum residue levels (MRLs). Tea Exporters Association (TEA) has brought to the notice of SLTB notice on number of occasions the serious non- compliances which includes detection of excessive pesticide and other chemical residues over and above MRLs. In addition, the presence of foreign/extraneous matters and high moisture levels which lead to microbial contamination & fungus formation may end up in development of micro toxin fungus – these will become health hazard.
(5) Tea plantation system as a complex adaptive system:
My own view is that the long- term goal of Sri Lankan tea industry would be to build “sustainable communities” for the tea plantations and, achieving higher foreign exchange earnings from tea exports may be only one of the unit objectives.
A sustainable community is one that is economically, environmentally, and socially healthy and resilient. It meets challenges through integrated solutions rather than through fragmented approaches that meet one of those goals at the expense of the others. And it takes a long-term perspective—one that’s focused on both the present and future.
Scientists began to observe certain properties in biological systems. The adaptation of the individual independent components within the system to the environment was one such property. The experts observed this phenomenon was visible in systems such as eco-systems, global economics systems, and social systems.
(6) Strategies implemented by the new administration:
With the new administration, the government together with the private sector stakeholders have been able to reverse the negative trends experienced previously and the higher fob prices and increased tea auction sale averages are now getting tricked down to growers, thus addressing the livelihood income issues systematically.
The Sri Lanka tea industry witnessed a recovery amidst the COVID pandemic, with a substantial increase in production and the export volume during the first quarter of 2021 compared to the corresponding period as well as the year 2020 compared to 2019.
During the Q 1- January to march ’21, the tea export revenue was Rs. 65 Billion, up by Rs. 16 billion YoY, from Rs 49 Billion during the 1Q, 2020.
Q 1- January to march ’21 cumulative production totaled 74 million kgs, up by 20 Mn. kg.
FOB price was Rs. 939/= per kilo during the Q1, which is an increase of 13%, from Rs. 827/= during the corresponding period 2020.
FOB price in US $ during the Q1 was US$ 4.77 as against US$ 4.47 during Q1 -20.
March fob in US $ was ($ 4.87) the highest ever.
FOB price during the year 2020 was Rs 867/=per kilo, when compared to Rs 823/= per kilo during the year 2019.
Consequent to this cabinet decision under the caption “Towards a green socio-economic pattern with sustainable solutions to climate change” actions have been taken by SLTB to request stakeholders to encourage them to produce, supply and use organic manure to be set up on each agro- climatic region in large quantities. It was suggested in the SLTB circular that immediate action be taken by TRI to formulate and prepare specifications of organic manure applications covering different applications such as Nursery stage, immature, mature VP and Seedling and recommendations for small holdings etc. The development of the organic fertilizer business needs high tech inputs based on R&D, the required raw material availability and market acceptance based on different crops. The regulatory issues that prohibit or delay arranging import of trial quantities of organic materials (without micro- organism) for R&D evaluation need to be addressed. The necessary guidelines from the regulatory authorities should support development of organic fertilizer at large scale.
(7) Implementation of tea industry strategic plan:
As a solution, we have recommended the stakeholders to follow strategies which includes ‘Integrated weed management system’ and migrate in to offering high quality ‘Ceylon Tea’ with near Zero pesticide & other chemicals to the global market in accordance with our ‘Tea industry strategic plan 20-25’ and CTTA tea strategy-road map.
One of the most striking features of the current operations of the stakeholders is the increased awareness and adherence of the social & environmental considerations at estate level. Ceylon tea is at an advantageous position in the global market viz; other competitors for reasons such as “Zero tolerance” policy on child labour, adherence to environmental considerations on a sustainable basis and of course the quality of Ceylon tea as perceived by the buyers. As a result, Ceylon tea continues to fetch a higher price at the Colombo auction compared to teas from other producing countries, although the cost structures and productivity levels of our estates are totally disproportionate to make the industry commercially viable in short to medium term scenario.
Tea plantations have to therefore pursue environmentally friendly and socially responsible practices & methods in all their agricultural field operations (i) tea manufacturing processes(ii) and managing its employees (iii)to ensure that all-natural resources and eco-systems will be managed in a sustainable manner. The companies will have to make every endeavor to conserve the usage of all resources by optimizing resource utilization and minimizing waste through practicing cleaner production principles. They will strive to be self-sufficient in green energy to operate all our tea factories through harnessing the hydropower potential within all the lands belonging to the company.
There are many strategies recommended by TRI and others such as development of Agro- forestry farming systems using all unutilised estate land to have ‘nitrogen fixation’ as suggested by Chairman TRI. This will improve the soil porosity, provided we issue guidelines instructing them to follow TRI guidelines on Integrated soil fertility management strategies as mandatory good agricultural practices (GAP)towards minimizing soil acidity, top soil erosion and wastage of inputs etc.
As stated, it is a fact that there has been no increase in productivity, but a gradual decline in tea productivity measured in terms of the yield per hectare in Sri Lankan tea estates, partly due to continuous application of chemical fertilizer and due to difficulties in adopting mitigating strategies to arrest negative impact of climate change. This depleted soil condition and land degradation issues need to be corrected as a matter of priority. This proposed strategy will enable the growers at least to correct the high acidity levels in the soil and improve soil porosity and tea product quality.
In sustainability circles much is written about “three pillars of sustainability” or in other words, “triple bottom line” of environment, society, and economy. My own view is this is to confuse ends with means. The Environmental sustainability and Human well-being are two desirable points. Economic wellbeing in the long run is driven by those two. In other words, the necessary precondition for long term economic sustainability and profitability of the tea estates is environmental and social well-being from the long- term perspective.
As for marketing of tea in the global markets, the discerning customers have high expectations of the standards and practices applied by the supply chain including tea estates. For example, Tea” is made according to the principles of “sustainable food” thus providing values to discerning customers, employees and all other stake holders. SLTB global promotion campaign aims to popularize tea drinking around the world in order to expand demand and increase per capita consumption, using three USPs; authenticity means demonstrating sustainability credentials, wellness factor and the premium quality of Ceylon Tea.
If the estate management does not look at long term view, it is unlikely they make profits on a continuous basis. Eventually, the long- term value creation for the shareholders depends on the sustainable development of the estates and the community in which they operate. That is why I consider tea plantation sector as one of the truly complex adaptive systems.
Are we leaving the tea plantations to future generations in a better condition than the one we inherited?
Record breakers in a Covid disaster
Sri Lanka has certainly scored another world record.
Just look at the number of vehicles on the streets every day at a time when the country is in a lockdown. The Police Spokesman is pleased to tell us how many thousand vehicles were on the streets each day. They have moved to the pasting of stickers – from a single sticker to different coloured stickers to give different messages, and then to stop all stickers!
Just think about how the streets of all major cities were virtually empty when lockdowns took place in other countries, when the Covid pandemic began spreading. We are not like that. Why should we take examples from other countries – East or West? We must have our own traditions, with our Presidential Task Forces to handle Covid-19 and the Economy, and a celebration uniformed Army Commander to give us contradictory messages.
Sri Lanka is truly proud of having more vehicles on our streets than any other country amidst a Covid pandemic lockdown. Who will ever break such a record?
This is certainly in keeping with that other huge record of having 25 violations of the Constitution in the Bill to establish the Port City Economic Commission. Who would get the prize for this record – the Legal Draftsman and/or the former Attorney General, or either or both of them and the Minister of Justice? The Podujana Peremuna must be planning a special prize day to celebrate this.
The Media people in the President’s Office must be having a special delight in telling us matters that are wrong and uncertain about foreign responses to requests by the President. Can we forget how the WHO contradicted the report that the Sinopharm vaccine had been approved soon after the request made by our President?
We have another such situation now. Japan has refused to confirm reports that it is considering giving Sri Lanka 600,000 doses of the AstraZeneca COVID-19 vaccine.
The President’s Media Division reported this week that Japan was considering a request from President Gotabaya Rajapaksa for 600,000 doses of the AstraZeneca COVID-19 vaccine. This request had been made by President Rajapaksa to Prime Minister Yoshihide Suga.
What the Japanese Embassy had told the local media was that Japan will allocate around 30 million doses of vaccines manufactured in Japan to other countries and regions, including through the COVAX Facility.
Is this another record for the President’s Media Division?
The six lakhs of Sri Lankans who received the first dose of the AstraZeneca vaccine, must keep hoping against hope, about getting the next dose. Looks like even the President or his office cannot do much to get those vaccines.
All of this uncertainty is in the midst of the supposedly unavailable AstraZeneca vaccines being used with other Chinese or Russian vaccines in the vaccine exercises in many parts of the country. The 600,000 plus citizens waiting for AstraZeneca must be thinking if they can form a Citizens Vaccine Trade Union, like the GMOA, to get the vaccines to themselves, as well as members of their families, friends, relations and catcher’s too.
While on the subject of vaccines, it is interesting to read that President Gotabaya Rajapaksa, so thoughtful of the people and their needs, has instructed the officials to order a batch of vaccine for a third dose, taking the ongoing global situation into account and based on the recommendations by the medical experts.
He is said to be following the pattern of leading countries that have already ordered vaccines for the third dose. This is great. Ensure a third dose is ordered, while we are not sure what will be done about the missing 600,000 plus of the much-needed AstraZeneca.
Are we moving to a Third-Dose record?
Is this not the time to make a special request to the US to get the vaccines we urgently need, from the vaccines that President Biden has announced will be given to the world? Or from the other millions that the G7 countries will soon give to the world? Have we gone too close to China to make such a request from the western world? Is this moving away from the Cheena Saubhagyaya that is the motto of Rajapaksa Rule?
We are now told that the lockdown will be lifted from June 14, with new rules to be introduced. Let’s see what these new rules are. Will they help to bring down the rates of infection from Covid-19? Will it help bring down the deaths from this pandemic? How many more people will be infected, taken ill with all symptoms and die at home, or while being admitted to hospital, as the records keep showing?
We are now in the midst of increasing tragedies bringing alarm to the minds of the people, whatever the planners of the lockdowns or its relaxations may be thinking.
We are also in the midst of contradictory quarantine rules imposed by the Police. The people, including two foreigners, who had a party at the rooftop of a Colombo building, have been ordered to quarantine at home. But the beauty and cosmetics names and models who were partying at the Shangri-La Hotel, were sent to a special guesthouse far away from home, with plenty of good food too, to spend their quarantine. Looks like we are dealing with a double-angled Police. Or, could the Police be even triple-angled seeing how they have been enjoying the huge traffic amidst a lockdown, and looking on as politicos and agents send their catchers to beat the public at vaccination centres.
This is the land of the record breakers in lockdown travel and the misuse of Covid vaccinations. Will we soon have new records on the Covid infected and deceased, possibly even beating India in under reporting of Covid tragedies?
Luxury cars for MPs; floods, disease and death for electors
Never has Cassandra been so downcast and heart-sick. It certainly is not what she terms lockdown fatigue like metal fatigue that was identified after parts of planes just snapped off. This was long ago. Now in the third week of lockdown, we could break under the stress of being shut in but we Ordinaries are made of sterner stuff. We have our support system – friends and relatives whom we keep close in touch with via telephone and electronic media. We have our safety net – our several religions. Speaking as a Buddhist, Cass can vouch for the strength of this safety net and how beneficial it is. Just being mindful most of her waking hours she keeps away depression and a sinking of her heart each time she reads news on-line or sees TV news broadcasts. If meditation is attempted it is even more efficacious. Mercifully Cass and her ilk order veggies, fruit and groceries on-line. Most certainly bare essentials in consideration of those many near starvation. We are totally sorrowful about the plight of daily wage earners, but cannot right wrongs such as poverty and impecuniousness of the less well to do. That is what governments are elected to achieve.
Reasons for deflation of spirits
We are battered and bruised by the pandemic; inundated by incessant rain and floods, some suffering landslides too. And we had an acid leaking ship sneaking to our waters, catching fire, and being made welcome as a money earner through claimed damages. Now we are told marine pollution will last a hundred years. Can you imagine that – our beautiful blue seas with shining sand now a death dealing home to marine life? Turtles have been washed ashore, dead. Dr Anoja Perera in her heartfelt speech in which she let the present leaders have it, said that the nitric acid that leaked into the sea will destroy even the cartilaginous bones of fish. Their gills have been suffocated by plastic pellets let loose from the burning ship. In all the debris there is a stinking rat or rats too – rousing suspicion. The Sri Lankan Agent of the parent company that owns the ship has proved himself elusive; secrecy reeks. MPS and Ministers who claimed SL would be rich with compensating dollars are sure to lose their parliamentary seats next time around, of course that is if the Sri Lankan indigenous malaise of short memories does not afflict us four years hence and we vote the same rotters in to govern us.
Those who are card holders testifying they received the first A-Z shot in February/March are in the blues wondering when the second jab of A-Z will be given to them. The US, thanks to Biden’s mercy, promised to include Sri Lanka in its list of beneficiaries to receive the A-Z vaccine from what it stockpiled. Prime Minister Wickremanayake’s daughter in England appealed to Boris Johnson to donate vaccines to us. Not only the government but even individuals have started begging for vaccines. We heard Mangala Samaraweera was another. Cass is surprised that fair play on the part of these rich countries supersedes the fact that we are obviously open-armed supplicants to the Chinese. Surprises Cass their mercy prompts then to help us. They hear the cry of the Ordinaries.
The final straw that breaks our spirit
Unbelievable, implausible, impossible such crude greed and feathering their own nests, this time not with money but with luxury cars. Cass did not believe it when she heard that Prime Minister Mahinda Rajapaksa had ordered a whole fleet of cars for MPs, not just ese mese vehicles but most luxurious and thus very, very expensive. Cass not realising such greed and injustice could prevail, especially at this very bad time for Sri Lanka, surmised the news of the Cabinet passing the proposal to import 399 luxury cars to be fake news. But it turned out to be true and nearly kicked the life out of Cass, she finding it difficult to breathe – not asthma or C19 but through sheer disbelief of such selfish, unthinking, gross act of importing cars for MPs and other favoured persons while the majority of Sri Lankans suffer and many near starve. I quote Shamindra Ferdinando in his article titled LCs opened before Cabinet rescinded its own decision in The Island of Wednesday June 9.
“In spite of the Finance Ministry decision to withdraw an earlier Cabinet paper for the import of 399 vehicles at a cost of Rs 3.7 bn, the cash-strapped government was not in a position to unilaterally cancel what Media Minister and co-Cabinet spokesperson Keheliya Rambukwella called a tripartite transaction. (Why did the govt place the order in the first place, Cass asks).
“The Island yesterday (8) sought an explanation from Minister Rambukwella regarding the status of the high profile leasing arrangement pertaining to 399 vehicles. Minister Rambukwella said that he was not aware of how the state bank that had opened the Letters of Credit handled the issue at hand. However, as the opening of Letters of Credit meant guaranteed payment, Sri Lanka faced the prospect of being blacklisted if a unilateral decision was taken on the matter. The minister explained the difficulty in reversing the original decision.”(Fine howdy)
Later in Ferdinando’s article is this even more damning statement which really hits us a second whammy. “None of the Opposition political parties have criticised the government move on vehicles made at a time the country was struggling to cope with Covid-19 fallout.
“SLPP’s 2019 presidential election manifesto, too, assured that vehicles wouldn’t be imported for members of parliament for a period of three years.”
“After the change of government in 2019, the SLPP put in place a much-touted project to expedite repairs to state-owned vehicles as part of the overall measures to meet what co-cabinet spokesmen Ministers Rambukwella, Udaya Gammanpila and Dr. Ramesh Pathirana called immediate shortfall.” (It all sucks!)
The roads are choc-a-block with posh cars which give the impression we are far from being Third World, but one that is rich, prosperous and with no short falls or poverty anywhere within it. When one sees those in the legislator convene for meetings at the old parliament building down Galle Face road, one is shocked at the luxuriousness of the vehicles that shed the VIPs – all local – from within. Are we a poor country, one asks. The sight of most of the alighting VIPs confirms that question – so well set are they: obese in simple language. Sri Lanka had no money to buy vaccines for its people and went begging hither and thither. But on the quiet the PM himself, approved by his Cabinet, orders 399 luxury cars. Are royal kids and pets to be given cars too? While the hard-working farmer cries, some with tears, for fertiliser; the village mother moans her husband dead from Covid 19 and all beg for inoculation. No wonder Kuveni’s spirit is active at present, and her curse is heard and experienced. We are cursed with totally unnecessary luxuries for some; inoculations given entire extended families and friends of those with clout; floods devastating the country; a sure forecast of a poor rice harvest and starvation staring us in the face; tea prices falling due to lack of needed fertiliser, caused by a sudden, stubborn, trigger decision to ban imported chemical fertiliers. Disease and death pile up because vaccination was not carried out en masse. This could have been done.
That is Free Sri Lanka of now, that once resplendent isle, touted to be like no other. Yes, it is unique in its mismanagement and obvious contrasts between those with political clout and us Ordinaries.
How to gamble with floods
by Eng. Mahinda Panapitiya and
Eng. Wasantha Lal (PhD)
(Two residents from Attanagalu Oya Basin)
Flooding during heavy rains and water pollution during normal time in natural streams is a common problem all over the world when human settlements are located near flood prone areas. For example, about 7-10% land area, in the US, under human settlements, are prone to flooding. In ancient cultures, flooding was perceived as a blessing in disguise because it was the main transportation method of fertilisers, free of charge, for agriculture activities in temporary submergence areas called flood plains. After moving people into flood plains because of shortage of space for settlement, floods have become a curse for humans. Deciding to settle down in flood prone area is a gamble. However, there are modern technologies called flood modelling available for us to overcome this problem.
For an example, it is now possible to simulate different flood conditions that may arise due to heavy rains, before it actually occurs, using satellite and survey data. This is called “modelling” in engineering. Any area prone to floods can be modelled and divided into zones so that land users will know in advance how deep their lands will get submerged. This type of performance-based methods also evaluates how an existing or newly introduced flood mitigation effort, performs under different flooding events.
Hidden reasons behind frequent flooding and water pollution of natural streams
* Unplanned real estate development by clearing local tree cover resulting in impervious areas (roofs, carpeted roads, etc.,) prevents water infiltrating the soil. This increases the runoff rate, causing flash floods during heavy rains. On the other hand, during droughts, all the natural tributary streams and wells in those areas dry up soon after the rain. This is very common in basin such as the Attanagalu Oya.
* The obstruction of natural stream and their tributaries due to poor maintenance. This is very common along the Kelani River basin
* Illicit encroachment causes the filling of wetlands in the flood plains. As a result, rain water has no designated place to collect before flowing out gradually. Most of the floods in Gampaha, Ja-ela and Wattala are due to this issue.
* Deposition of sediments washed down from upland areas due to lack of tree cover and also the erosion of stream banks whose reservations are encroached on either for agriculture in rural areas or for settlement in urban areas
* Inadequate flow capacity in local streams due to invasive weed growth associated with polluted water and lack of riparian tree cover. (Wattala)
* Lack of awareness among officials who manage water resources in natural streams about the role of riverine environments in flood plains which act as kidneys in our ecosystem while preventing flash floods.
How the community could face these challenges
Those who are already living in flood-prone areas or are planning to do so should be aware of the different risk levels in the areas concerned. For that, there is a need to do an exercise called Flood Hazard Zoning, This approach is very common in the developed world. This exercise will also enhance the community participation for government intervention such as canal cleaning and discouraging further encroachment on flood plains by land fillings.
A sketch above extracted from a technical guideline adapted in the US shows a typical flood zoning map, which could be used by a community to decide whether they should or should not build houses in a particular location.
For example, in this map, people who are in Zone A are in a high-risk area subject to flooding. Zone C is a low risk area. A person who wants to build a house in Zone A, which is designated as “100 Year Flood Zone”, will have a 26% chance his house being submerged once in 30 years, which is the normal bank lending period of a housing loan. For the next 70 years, which is the normal lifetime of a building, the chance of being flooded is 50%. For a person who wants to build a house in Zone B designated as “500 Year Flood Zone” will have 18% chance of his residence being submerged once in 70 years. By knowing in advance through these flood zoning maps, people themselves become aware of flood danger before it occurs and, therefore, they prepare themselves for the challenges during flood situations. When there is no such initial warnings, governments will have to bear the whole responsibility.
This type of mapping would also be a useful guide for land valuation as well as for insurances against flood risks. With flood zoning, flood insurance becomes an option that adds a financial component in designing buildings to address those future risks. For example, people can build their houses at elevated levels on columns to suit predicted flood levels. Also the sewerage systems can be introduced to suit the wetland environments.
Lessons from the US
Every state in the US is required by law (water policy) to demonstrate that (a) the public is protected from floods; (b) the public has sufficient water available for drinking and farmin, etc. (d) there is enough water to support the environment. Computer models simulating the year-round hydrology are used for the purpose. Those models show how water from the rains could be saved for use during the dry season. Government agencies in the US do not use the models currently in use in Sri Lanka. They have developed their own models to simulate flooding. Models used in Sri Lanka are bought primarily from two European countries. They are normally used only to study individual flood events. The fundamental ideas used in these models have not changed since 1980s in Sri Lanka, and these models are still sold primarily to developing countries like Sri Lanka. On the other hand, teams of senior engineers are employed for developing those models used in the US, before permits are issued for new development projects. There are also Sri Lankans engineers among those teams in the US, as primary developers.
Opposite of flood
Wetlands of flood plain are the interface between aquatic and terrestrial areas. Plants in those wetlands play a very vital role in cleaning water biologically before it falls into the main streams. Wetlands are in fact the kidneys of ecosystems. Over the years, due to the so-called development, the environmental features of flood plains have undergone changes, causing not only floods during heavy rains but also malfunctioning natural water cleaning process, especially during droughts.
Note that those new technologies address not only flood situations but also help face drought situations, too, by identifying areas suitable for temporary water storages within flood plains. For example, during a previous drought situation there was a water shortage in the Attanagalu Oya basin, and the people had to purchase water from trucks, though annually the Oya releases into the sea a volume of water equal to that of the Parakrama Samudraya! Severe drought situations are even worse than floods, especially in view of the current pollution levels of natural streams bordering urban areas. To address this issue also, technologies could be used to identify naturally available water cleaning wetlands to be preserved.
King Parakramabahu’s famous quote about water conservation and utilization—“Do not release even a drop of rain water to the sea without using”—applies not only to our dry zone but also to the west zone.
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