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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

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