Table 1 Basic parameters of lakes in the BTNP.

From: Causes of variations of trace and rare earth elements concentration in lakes bottom sediments in the Bory Tucholskie National Park, Poland

Lake

Area (Area) (ha)

Volume (Vol) (103 m3)

Average depth (AD) (m)

Maximum depth (MD) (m)

Catchment area (km2)a

Lake coefficient (LC) (–)

Lithology (% contribution in catchment area/formations)

Total organic matter (TOM) (%)

Bottom sediments sample number

Location of sampling sites

Ostrowite

280.7

29,989.8

10.7

43

17.3

6.2

69/A, 7/B, 11/E, 6/C, 10/G

34.9

1c

53° 47′, 17° 35′

29.4

2b

53° 47′, 17° 36′

Jeleń

48.8

2067.3

4.2

10.7

23

47.1

95/A, 5/B

41.3

3

53° 49′, 17° 35′

Płęsno

47.8

2254.1

4.7

11

24.9

52.1

100/A

24.1

4

53° 48′, 17° 33′

Krzywce Wielkie

26.5

1724.1

6.5

15

2.4

9.1

94/A, 5/B, 1/C

52.9

5

53° 50′, 17° 33′

Zielone

25.5

2253.4

9

20.5

18.6

72.9

85/A, 15/B

36.5

6

53° 49′, 17° 35′

Skrzynka

21.1

369.8

1.8

4.6

37.9

179.6

75/A, 25/B

28.0

7

53° 48′, 17° 31′

Gacno Małe

15.5

481.2

3.1

5.6

1.8

11.6

85/A, 15/B

63.5

8

53° 47′, 17° 33′

Gacno Wielkie

13.5

376

2.7

6.1

5.8

43.0

75/A, 25/B

62.3

9

53° 47′, 17° 34′

Krzywce Małe

11.8

621.7

5.3

10

6.1

51.7

82/A, 3/B, 15/C

44.7

10

53° 49′, 17° 32′

Mielnica

11.3

82.7

0.7

1.2

41.0

362.8

80/A, 18/B, 2/E

29.8

11

53° 48′, 17° 31′

Nierybno

10.1

260.0

2.5

6.3

1.4

13.9

88/A, 2/B, 10/D

66.9

12

53° 49′, 17° 33′

Główka

8.0

299.5

3.7

11

24.8

310.0

67/A, 8/B, 25/D

29.7

13

53° 48′, 17° 34′

Bełczak

4.3

147.2

3.4

6

23.4

544.2

70/A, 30/D

39.7

14

53° 48′, 17° 35′

Głuche

3.3

104.5

3.2

6.5

0.5

15.2

80/A, 20/B

29.3

15

53° 49′, 17° 32′

Olbrachta

2.6

67.4

2.6

3.7

6.5

250.0

60/A, 40/C

55.1

16

53° 49′, 17° 31′

Kocioł

2.5

170.7

6.8

11

0.3

12.0

100/A

67.2

17

53° 48′, 17° 36′

Kociołek

0.7

16

2.2

5.3

0.1

14.3

100/A

72.9

18

53° 49′, 17° 36′

Kacze Oko

0.5

5.5

0.9

1.3

0.1

20.0

55/A, 45/B

64.3

19

53° 48′, 17° 32′

Rybie Oko

0.3

11.2

3.5

6.1

0.2

66.7

65/A, 35/B

60.1

20

53° 48′, 17° 33′

  1. A outwash plain sands and gravels; B aeolian sands; C peats; D aggradate muds; E silts, limnic sands and chalks; F fluvial sands and gravels; G boulder loams.
  2. aWoronko and Nowicka43.
  3. bEastern part.
  4. cWestern part.
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