Barry New. Branch, NCDFR

Transcription

1 North Carolina FIA Data Update Barry New Technical Development & Planning Branch, NCDFR Retired foresters meeting May 25, 2011

2 Forest Inventory & Analysis the Nation s Forest Census 7 Periodic Surveys Annual Survey (Cycles) 1 st nd rd th th th th 2002R* 8 th th rolling average 2 of 5 panels complete as of % re measured plots, averaged with complete 8 th cycle previous plots

3 NC 2007 Ownership of 18 million acres of timberland Other corporate 15% National forest 7% Individual 62% Other federal 3% State and local government 5% Forest industry 8%

4 NC Trends by survey cycle 21, , , ,500.0 Forestland Timberland on ac. milli 19, , , , , ,

5 Percentage of land in forest by county, North Carolina, 2007 Percent forest land by county Water

6 Area of timberland by forest type group, NC 2007 Oak gum cypress 10% Elm ash cottonwood ood 3% Maple beech birch <1% White red jack pine 1% Loblolly shortleaf pine* 29% Oak hickory 40% Spruce fir <1% Longleaf slash pine 2% Nonstocked 1% Oak pine 13% Other hardwoods** <1%

7 Area of timberland by stand size class and year, North Carolina on acres milli Sawtimber Poletimber Seedling sapling Nonstocked

8 Timberland area by forest type group and stand origin, ii North thcarolina, Softwood Hardwood (million acr res) Area Natural Planted Natural Planted Natural Planted Natural Planted Year and stand origin

9 Softwood all live volume by diameter class and year, North Carolina, Volume (b billion cubic c feet) Diameter Class

10 Hardwood all live volume by diameter class and year, North Carolina, Volume (bi illion cubic fe eet) Diameter Class

11 Growth, Removals, Mortality & Net Change by Species Group & Year, North thcarolina feet per year) Volume (million cubic 1,200 1, Softwood Hardwood

12 What about the 1+ million acres of forestland lost ? 19, , , , , , , , , , , , ,500.0 Forestland Timberland Published 1990 Published 2002 NIMS Net change NIMS Reprocessed 455,000 ac. Forestland 342, ac. Timberland

13 Thous sand Ac cres Average Annual Landuse Change of Timberland in North Carolina by Survey Period 50 - (50) (100) (150) R. Harper SRS, FIA Total Timberland Gain Total Timberland Loss Net Change

14 res Thous sand Ac Average Annual Landuse Change of Timberland in North Carolina by Survey Period 50 - (50) (100) (150) R. Harper SRS, FIA Total Timberland Gain Total Timberland Loss Net Change Loss to Urban/Other Loss to Ag

15 s Millio on Acre R. Harper SRS, FIA Timberland Area and Live Tree 1 Volume by FIA survey, North Carolina Timberland Acres Volume / 1956 and 1964 are growing stock volume Bill lion Cub bic Fee et WhileNC timberland hasexperienced pressurefromconversions to development and agricultural land use, the forestry community has been able to maintain a sustainable wood volume over time. Timber inventory volume is at an all time high and has doubled over the last 50 years.

16 Mountains North Carolina Survey Units Northern Coastal Plain Piedmont Southern Coastal Plain

17 Timberland area trends by survey unit, North Carolina 7, , ,000.0 thou usand acres 4, , ,000.0 Mountains Piedmont N. Coastal Plain S. Coastal Plain 1, Survey Year

18 Forest & timberland area continues to moderately decline. 85% of NC s forests are privately held. 62% by individuals & families. Hardwoods dominate timberland area (68%) and all live volume (66%). GS volume 63% hdwd vs. 37% sftwd billion cu ft tot. Highlights GS total volume: 25% loblolly 14% yellow poplar 6% sweetgum 6% soft maple Positive annual net change in G/R/M for both sftwd & hdwd. Reprocessed 2002 data shows net loss of 455,000 ac forestland & 342,000 ac timberland , not 1+ million acres.

19 Acknowledgements USFS SRS FIA DFR Mark Brown, Forester/Analyst Richard Harper, Forester/Analyst Jeff Turner, Forester/Analyst Jason Meade, Forester/Analyst t Don Roach, FIA Coordinator Michael Mann, former Utilization Forester

20 data/default.asp fs fed asp

21 Data available for survey cycles 1974, 1984, 1990, 2002R, ,

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23 Barry D. New, RF, CF Branch Head, Technical Development & Planning NCDFR