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Table. 4 Total living-tree biomass (106 g) in different forest categories of the study area

From: Geoecological parameters indicate discrepancies between potential and actual forest area in the forest-steppe of Central Mongolia

  Actual forest area Forest distribution in 1986
Forest-size class 1 2 3 4 Sum 1 2 3 4 Sum
Steppe-dominated area  
 Interior 68,892 398,195 474,487 132,398 1,073,972 81,348 428,835 505,209 143,948 1,159,341
 Edge 149,217 191,236 130,499 31,053 502,005 138,668 251,237 118,171 25,152 533,229
 Sum 218,109 589,431 604,986 163,450 1,575,976 220,016 680,073 623,380 169,100 1,692,569
Forest-dominated area  
 Interior 277,732 1,809,560 3,177,481 8,000,534 13,265,306 304,883 1,909,714 2,664,408 11,020,218 15,899,224
 Edge 718,971 815,498 754,423 1,977,866 4,266,758 530,041 653,229 548,092 1,941,327 3,672,689
 Sum 996,703 2,625,058 3,931,904 9,978,400 17,532,064 834,925 2,562,943 3,212,500 12,961,545 19,571,913
High-mountain area  
 Interior 37,963 163,881 141,084 0 342,928 82,118 648,002 1,448,389 8,922,284 11,100,793
 Edge 215,657 104,498 39,519 0 359,674 176,719 247,038 353,449 1,723,920 2,501,126
 Sum 253,620 268,379 180,603 0 702,602 258,837 895,041 1,801,838 10,646,204 13,601,919
Alluvial forest     350,149     353,095
Total sum      20,160,791      35,219,497
Comparison of tree biomass  
 Sum 1986 1,313,778 4,138,056 5,637,718 23,776,849 34,866,401  
 Sum 2018 1,468,432 3,482,868 4,717,493 10,141,850 19,810,642  
 Loss by fire − 154,655 655,189 920,225 13,634,999 15,055,759  
 Percentage (%) −11.8 15.8 16.3 57.3 43.2