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Table 10 (Geo., Topography ) |
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Coastal Erosion &
Accretion Rate in Sri Lanka |
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Geo10e |
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Sector |
District |
Coast Line |
Erosion Percent
of Coast |
Erosion Rate |
Accretion Percent
of Coast |
Accretion Rate |
Net Erosion |
Net Sand Loss |
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|
(Km) |
( % ) |
( m /Year ) |
( % ) |
( m /Year ) |
( m /Year ) |
(100m3/
Year) |
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West |
Puttalam |
300 |
30 - 40 |
0.3 - 0.4 |
30 - 60 |
0.0 - 0.1 |
0.2 - 0.4 |
65 - 120 |
|
Gampaha |
40 |
45 - 50 |
n.a. - 1.0 |
10 - 20 |
0.0 - 0.1 |
0.9 - 1.0 |
35 - 40 |
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South West |
Colombo |
40 |
20 - 25 |
0.0 - 0.1 |
n.a. |
n.a. |
0.0 - 0.1 |
0 - 5 |
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Kalutara |
40 |
70 - 80 |
0.1 - 0.5 |
20 - 30 |
0.0 - 0.1 |
0.0 - 0.4 |
10 - 20 |
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Galle |
75 |
60 - 65 |
n.a. - 0.3 |
0.0 - 10 |
0.0 - 0.1 |
0.2 - 0.3 |
10 - 20 |
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South |
Matara |
55 |
n.a. - 88 |
0.9 - 1.0 |
n.a. |
n.a. |
0.9 - 1.0 |
40 - 50 |
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Hambanthota |
135 |
40 - 50 |
n.a. - 0.2 |
10 - 20 |
0.0 - 0.1 |
0.1 - 0.2 |
20 - 30 |
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East |
Ampara |
110 |
40 - 50 |
n.a. - 0.2 |
10 - 20 |
0.0 - 0.1 |
0.1 - 0.2 |
20 - 25 |
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Batticaloa |
100 |
n.a. - 60 |
0.1 - 0.2 |
n.a. - 20 |
0.0 - 0.1 |
0.0 - 0.2 |
10 - 20 |
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North East |
Trincomalee |
210 |
n.a. - 40 |
n.a. - 0.2 |
10 - 20 |
0.2 - 0.3 |
n.a. - 0 |
10 - 0 |
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Mullativu |
50 |
20 - 30 |
n.a. - 0.2 |
0.0 - 20 |
0.2 - 0.3 |
0.0 - 0.1 |
0 - 10 |
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North |
Jaffna |
275 |
60 - 70 |
n.a. - 0.3 |
0.0 - 20 |
0.1 - n.a. |
0.2 - 0.3 |
30 - 90 |
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Mannar |
155 |
60 - 70 |
n.a. - 0.5 |
0.0 - 20 |
0.2 - n.a. |
0.3 - 0.5 |
70 - 80 |
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All Island |
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1,585
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45 - 55 |
0.30 - 0.35 |
0.0 - 20 |
0.00 - 0.15 |
0.20 - 0.35 |
300 - 500 |
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©
2004, KRI (Kusaka Research
Institute) |
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Source: |
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Statistical
Compendium on Natural Resources Management Sri Lanka 2000, |
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Ministry of Forestry &
Environment |
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Revised: 2003(y)/12(m)/01(d) |
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Chief Editor: |
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Dr. Milton
Rajaratne (B.Com., M.Sc., Ph.D.) |
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The
former Head, Department of Management Studies |
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University of Peradeniya, Sri Lanka. |
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