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Ecological Processes

Table 1 Spatial parameters of the land type categories calculated taking account of their fire history

From: Effect of spring grass fires on vegetation patterns and soil quality in abandoned agricultural lands at local and landscape scales in Central European Russia

  No of polygons Area,% Area, m2 Perimeter, m Median of shape index Nearest neighbor index
Mean SE Min Max Mean SE Min Max
Forests 339 21.5 162,742 29,722 315 5,318,829 2207 228 73 35,569 1.67 0.68
Sparse forests 49 0.8 43,039 7316 1982 250,789 974 98 136 3164 1.31 0.53
Al1 19 0.4 60,662 12,921 7290 182,535 1225 154 399 2435 1.52 0.80
Al2 433 3.9 23,226 1417 1072 299,339 769 26 141 4483 1.46 0.48
Al3 480 6.6 35,346 2233 96 492,867 940 34 58 6389 1.46 0.50
Al4 1154 28.3 62,876 3228 595 1,908,624 1192 30 114 12,913 1.45 0.55
Arable lands 305 16.1 135,224 27,117 104 5,767,192 1522 132 74 24,005 1.38 0.35
Settlements 329 14.9 116,489 17,613 103 4,102,899 1454 104 85 18,118 1.35 0.49
Meadows 443 6.3 36,203 3313 176 875,350 1244 77 60 19,743 1.72 0.51
Water bodies 93 0.5 14,278 3158 593 209,607 573 71 107 4554 1.40 0.60
Others 21 0.6 75,336 27,758 4766 481,026 1677 523 296 10,953 1.48 0.37
  1. Al1, Al2, Al3, and Al4 are abandoned lands which differ in coverage of woody vegetation: Al1 with a uniform tree cover, Al2 with a dense tree cover in spots, Al3 with a tree cover of small density, and Al4 without trees or with a few single trees. SE is standard error of the mean; Min and Max are minimal and maximal values of the area and perimeter, respectively
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