The

The leadership to these partnerships comes from local civil society leaders and organization committed to conservation of natural resources. All stakeholder interests viz. local and state authorities NGO, tourist industry, plantations, education, academic, business and trade interests, industries are encouraged to participate and a forum for discussions and resolution is thus provided. Maha Oya in the wet zone flows through 4 provinces. Major issues are lowering of water table in the downstream reaches due to excessive sand mining, pollution due to dumping of urban waste, encroachment of forest reservations resulting in erosion of steep slopes. This affecting the hydrological regime and the water quality in a relatively densely populated basin (800 persons /sq. km) with related health issues caused by urban and untreated industrial waste. Two AWPs have been established in the Maha Oya Basin for two distinct sub-basins. The sub-basins have area specific issues but are also linked to each other. Mutual representation and participation in the neighbouring water partnership provides the necessary integration of views and adds impact for presentation to authorities for action at provincial/national level.

Sri Lanka Rever map

;103 River BasiMa Oya  begins at  Central Province  of  Sri  Lanka and  ends up  at  Western Province. 

People  put  garbage  and all  the  waste  in  to  the river Ma  Oya.  Because of   this

reason  lot  of  disease spread  all over  the  area around  Ma  Oya.   

 ns

17 River Basins>1000sqkm

Mahaweli River Basin is

the Largest, 10327 Sq.km

Sri Lanka is a tropical island situated in the Indian
Ocean with a total land area of 65,525 km2. Its
rainfall feeds a radial network of rivers that begin in
the highlands in the Central part. Some 103 distinct
rivers cover about 59,217 Sq. km. of their basins.
Large percentage of water resources in these basins
are mainly used for irrigated agriculture and
hydropower generation. Current population is
estimated to be around 18 million and it is projected
to be stabilized at 23 million by 2025.

Rever Basins In Sri Lanka

Add caption

Healing the wounds

The worst disaster of recent times, the Asian tsunami of 2004, devastated the coastal regions of the Walawe basin. Prior to the tsunami, Hambantota district, which forms the downstream portion of the Walawe basin, accounted for 5.5% of the fishing fleet and 12.9% of total marine fish production in Sri Lanka. In addition, about 93% of the people working in the fisheries lived in coastal areas, which greatly increased the tsunami’s impact on the sector.

Official statistics indicate that the tsunami affected 16,994 families, caused more than 3,067 deaths and left 963 people missing in Hambantota district. Total damage to the district was estimated at US$220 million. More than 90% of the fishing fleet and 3.9 million m2 of farmland were affected. Today, most of the fishing fleet and housing have been restored, together with public infrastructure.

In addition to the rebuilding, several developments in policy and institutional development can be observed. A disaster management law was enacted in 2005, and institutions have been strengthened. Also, community participation in disaster management is now actively promoted in the Walawe basin. Through such activities, flood-prone areas and vulnerable families in the coastal plains have been identified. Emergency action plans have been developed with the participation of the communities involved.

Poverty reduction, showing signs of improvement: Poverty is a general problem in Sri Lanka. Although the share of the population living on less than US$1 per day was only 5.6% in 2001–2004, 41.6% of the population lives below US$2 per day. In the poorer areas of the country, such as the east and south, where the Walawe basin lies, the poverty rates are higher than the national average. The percentage of population below the poverty line ranges from 13% to 33% in the Walawe basin, while the national average is 15.2%.

In the last 50 years, thanks to major investments in rice production, provision of health facilities, safe drinking water and improved sanitation, the infant mortality rate has been reduced and life expectancy has increased. Studies in the Walawe basin indicate that water resource development has helped reduce poverty levels. However, despite a declining percentage of poor households over the last decade, current statistics indicate that Sri Lanka is not on track to achieve the MDG target on poverty by 2015; poverty remains a major challenge.

Safeguarding public health

Some areas of the Walawe basin were almost unpopulated for centuries due to malaria. Government-sponsored campaigns to address the problem have made noteworthy gains. For example, the number of cases was 591 in 2006, down from 210,000 in 2000. Furthermore, while malaria claimed 76 lives in 2000, no deaths were reported in 2006. On the other hand, the incidence of water-related diseases such as Japanese encephalitis, leptospirosis (rat fever) and dengue have increased significantly in recent years. Reports show that leptospirosis resulted in 150 deaths from January to September 2008, including patients from the Walawe basin. Furthermore, Ratnapura and Hambantota districts in the Walawe basin are identified as being high risk areas for dengue, where the incidence of disease has increased by 35% over the corresponding period in 2007. In 2008 there were 18 dengue-related deaths. Continuous and persistent national and international input is needed to combat these water-related health problems.

Capacity-building

The Sri Lanka National Water Development Report (UNESCO-WWAP, 2006a), prepared for the second World Water Development Report, concluded that a substantial amount of international investment had been made in infrastructure development. However, funding in several water-related subsectors, such as irrigation management, water quality monitoring, pollution control and water related research, is not adequate. Serious investment in research and capacity-building is considered the most urgent priority, as it will make the earlier investments sustainable.

The knowledge gap in the water sector is a constraint for water resource management. Although noteworthy changes in climate and weather patterns are being observed, scientific conclusions about trends and future scenarios are not being drawn. Recent studies have exposed the inadequacies of the existing databases in this regard. Similar gaps exist concerning water-related issues. Although water quality problems are believed to be responsible for some ailments peculiar to agricultural areas in the dry zone, it is not clear what type of pollution is causing them, and hence effective action to control the pollution is not being taken. The gaps in databases and research outputs constitute a constraint on mobilization of the community, policy-makers and decision-makers to meet water challenges. These issues, as well as deficiencies in access to data and its dissemination, are highlighted in the earlier World Water Development Report case studies cited above.

In summary, the major challenge in the Walawe basin is to address environmental problems while assuring the sustainable socio-economic development essential for alleviating poverty. Successful but isolated water sector innovations in the basin give hope for the future; however, nationwide problems, such as gaps in capacity and the knowledge base as well as the absence of any comprehensive water policy, seriously handicap the country in its ability to address current challenges and make the adaptation needed to cope with future pressures from climate change and climatic variation.

River Sand Mining and Environmental Issues in SriLanka

Ranjana. U.K. Piyadasa

1, Champa.M.Naverathna2 and Kusum Athukorela3

1

Department of Geography, University of Colombo, Sri Lanka

2

Department of Agricultural Engineering, University of Ruhuna, Mapalana, Sri Lanka

3

Network of Women Water Professionals, Sri Lanka

The tsunami disaster the demand for sand is increased significantly in Sri Lanka. This high

demanding market of sand led to mining the sand drastically in lots of areas; not only the rain

sediment sand also river bed sand and river bank sand mining are increased. The demand for sand for

building construction within the country is approximately 7-7.5 million cubic meters per year. This

high demanding market of sand led to mining the sand drastically in lots of areas; not only the

sediment sand also river bed sand and river bank sand mining are increased. The river sand mining

directly affect to the natural equilibrium. Nilwala and Ginganga rivers are the main rivers that

suffering most of the illegal and rapid sand mining in Southern Sri Lanka. There are some other rivers

in southern Sri Lanka also facing to this problem in various scales. It is estimated that mining of sand

in Nilwala River has increased by three times that of 1997. Over-mining in the river causes many

problems like salinization of public drinking water supply due to the intrusion of sea water into the

river, collapse of river bank, loss of river land. Considering the importance of scientific assessment on

the extent of environmental degradation consequent to indiscriminate sand mining, an attempt has

been made in this research study to identify corrective and behavior of the environmental impacts in

Nilwala river basin of Southern Sri Lanka due to river sand mining. River sand mining reduced

significantly recent past years due to people’s participating and integrating research outputs, following

the legal frameworks, Community Based Organizations networking.

Sri Lanka Map

                                

    අසුපිනි ඇල්ල

මා ඔය ආරම්භ වන්නේ අසුපිනි ඇල්ලෙන්ය.

මෙය පිහිටා ඇත්තේ මධ්‍යම පළාතේ අරනායක ප්‍රදේශයේය.

මා ඔය
මා ඔය විනාශය ගැන බලන කළ
මිගමූව නගරයේ ඇති සියලූම කැළි කසල ගොඩ දමනAනේ මා ඔය ආශ්‍රිතවය’. එයින් එම ප්‍රදේශ වාසීන්ට විවිධාකාර ලෙඩ රෝග සෑදේ. එනම් පාචනය,කොලරාව, ඩෙංගු
වැනි රෝගයන්ය. එය එම ප්‍රදේශ වාසින්ට විශාල ගැටලුවකි.