Virginia's Seventh Forest Survey (2001)

Forest Area

Forest Area (acres) 1992 Estimate 2001 Estimate Chg
All forest [1] 16,026,900 15,846,300 -180,600
Timberland 15,447,500 15,293,000 -154,500
Reserved 531,980 536,600 4,620

Forest Ownership

Ownership (acres) 1992 Estimate 2001 Estimate Chg
Private individual 10,360,000 10,109,200 -250,800
Public 1,983,300 2,175,000 191,714
Forest industry 1,537,400 1,041,900 -495,500
Other corporate 1,549,500 1,966,900 417,400

Stocking

Stocking [2] (million cubic feet) 1992 Estimate 2001 Estimate Chg
Hardwood 21,889 22,981 1,092
Softwood 6,723 6,867 144
All species 28,612 29,848 1,236

Annual Net Growth

Annual Net Growth [3] (million cubic feet) 1992 Estimate 2001 Estimate Chg
Hardwood 546 641 95
Softwood [4] 318 311 -7
All species 864 952 88

Annual Mortality

Annual Mortality [5] (million cubic feet) 1992 Estimate 2001 Estimate Chg
Hardwood 169 207 38
Softwood 59 116 57
All species 228 323 95

Annual Removals

Annual Removals [6] (million cubic feet) 1992 Estimate 2001 Estimate Chg
Hardwood 372 389 17
Softwood 255 292 37
All species 627 681 54

Growth/Removal Ratios

Growth/Removal Ratios [7] 1992 Estimate 2001 Estimate Chg
Hardwood 1.47 1.65  
Softwood 1.25 1.07  
All species 1.38 1.40  

Forest Types

Forest Types [8] (acres) 1992 Estimate 2001 Estimate Chg
Oak-hickory 9,518,571 9,319,600 -198,971
Oak-pine 1,941,200 1,918,300 -22,900
Bottomland hardwoods 635,000 646,200 11,200
Natural pine 1,880,400 1,548,700 -331,700
Pine plantations 1,472,300 1,838,500 366,200

Annual Disturbances

Annual Disturbances 9 (acres) 1992 Estimate 2001 Estimate Chg
Final harvest 186,158 156,400 -29,758
Partial harvest 44,630 113,400 68,770
Commercial thinning 21,660 29,300 7,640
Fire n/a 12,600  
Weather n/a 125,700  
Insects & Disease n/a 65,700  

Annual Regeneration

Annual Regeneration 10 (acres) 1992 Estimate 2001 Estimate Chg
Natural regeneration 97,000 103,500 6,500
Artificial regeneration 77,700 65,800 -11,900

Footnotes

[1] Includes 16,700 acres of unproductive woodland not included in timberland or reserved forest.

[2] Merchantable volume of all live trees > 5.0 inches diameter at breast height on timberland.

[3] Average annual growth, net of mortality, of merchantable volume of all live trees > 5.0 inches diameter at breast height on timberland.

[4] Softwood species include all conifer species such as pines, spruce, fir, hemlock, cypress and cedars.

[5] Average annual mortality of merchantable volume of all live trees > 5.0 inches diameter at breast height on timberland.

[6] Average annual removals of merchantable volume from all live trees > 5.0 inches diameter at breast height on timberland.

[7] Ratio of average annual net growth to average annual removals of all live trees > 5.0 inches diameter at breast height on timberland.

[8] On timberland.

[9] Average annual rates , on timberland. Some acres experience more than one type of disturbance.

[10] Average annual rates, on timberland.