Demographic and settlement transformations in peripheral regions (based on the example of eastern Poland) - Biblioteka UMCS

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A N N A L E S

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ABSTRACT

The paper presents morphometric features and distribution of closed depressions in the loess DUHDVRIWKH1DáĊF]yZ3ODWHDXDJHRPRUSKRORJLFDOVXEUHJLRQLQWKHQRUWKZHVWHUQSDUWRIWKH/X- EOLQ 8SODQG 6( 3RODQG7KH DUHD LV FRYHUHG E\ ORHVV ZKRVH WKLFNQHVV UDQJHV IURP VHYHUDO WR

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Closed depressions are micro- and meso-forms of surface features in loess DUHDV&RPSDUHGWRWKH]RQHVRIWKHORHVVODQGVFDSHGLVWLQJXLVKHGE\0DUXV]F]DN

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It is currently assumed that closed depressions in loess areas were formed in the SRVWJODFLDOSHULRGWKURXJKVXIIRVLYHSURFHVVHVWDNLQJSODFHLQLQLWLDOGHSUHVVLRQV

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Area

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Number % Number % Number % Number % Number % Number % Number % Number % Number % Number % Number %

< 1500 Small 11 44 22 62.86 52 59.77 34 68 35 50 129 56.30 84 68.85 226 70.84 312 74.46 111 82.83 41 73.21

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6 24 5 14.28 16 18.39 15 24 17 24.2 50 21.83 20 16.39 56 17.55 60 14.31 15 11.19 9 16.07

2501-3500 2 8 2 5.71 6 6.89 2 4 8 11.42 21 9.17 10 8.19 18 5.64 22 5.25 3 2.23 1 1.78

3501-5000

Large 1 4 2 5.71 4 4.59 1 2 5 7.14 7 3.05 2 1.36 10 3.13 12 2.83 5 3.73 3 5.35

5001-6000 2 8 1 2.85 2 2.29 - 1 1.42 8 3.49 2 1.63 3 0.94 2 0.47 - - - -

> 6001 Very

large 3 12 3 8.57 6 6.89 2 4 4 5.71 14 6.1 4

3.27 6 1.88 11 2.62 - - 2 3.57

Total 25 100 35 100 87 100 50 100 70 100 229 100 122 100 319 100 419 100 134 100 56 100

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Major

landforms Number % Number % Number % Number % Number % Number % Number % Number % Number % Number % Number %

Loess

plateau tops 16 64 25 71.40 71 81.6 41 82 44 62.8 143 62.44 74 60.65 253 79.31 328 78.28 96 71.64 52 92.85

Denudation

basins 3 12 3 8.57 11 12.64 4 8 19 27.14 56 24.45 32 26.22 40 12.53 61 14.55 9 6.71 3 5.35

Valley

slopes 1 4 1 2.85 3 3.44 2 4 3 4.28 10 4.36 13 10.65 18 5.64 21 5.01 26 19.40 - -

Bottoms of erosion- denudation

valleys

5 20 6 17.10 2 2.29 3 6 5 7.14 20 8.73 3 2.45 8 2.50 10 2.38 3 2.23 1 1.78

Total 25 100 35 100 87 100 50 100 70 100 229 100 122 100 319 100 419 100 134 100 56 100

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