Cubic Foot Volume Equations for Southeastern United States

Transcription

1 Cubic Foot Volume Equations for Southeastern United States Instructions Verify that your Project Area is located within one of the Supersections in the table below. Use the equations provided to calculate cubic foot volume for each tree. There is a separate equation for each of the following five categories: saplings plantation planted slash pine and loblolly pine saplings plantation planted saplings of other species poles (different diameter breaks for conifers and hardwoods) saw timber (different diameter breaks for conifers and hardwoods) Adjust the resulting VOLCFGRS (gross cubic foot volume) to VOLCFSND (sound cubic foot volume) by subtracting rotten and missing cull volume in the central stem of each tree. Use VOLCFSND with Appendix J of the FIA Database Users Manual which is titled Biomass Estimation Using the Component Ratio Method found on the Forest Project Protocol Resources page. Volume Equation Group Southeastern United States Supersection Atlantic Coastal Plain & Flatwoods Blue Ridge Mountains Central Interior Broadleaf Forest Eastern Low Plateau Central Interior Broadleaf Forest Western Low Plateau Cross Timbers and Prairie Eastern Broadleaf Forest Cumberland Plateau & Valley Florida Coastal Plains Central Highlands Florida Everglades Gulf Coastal Plain MS River Delta MS River Mixed Forest Northern Atlantic Coastal Plain Ozark Broadleaf Forest-Meadow Boston Mountains SE Middle Mixed Forest Arkansas Valley SE Middle Mixed Forest Cumberland Plateau & Valley 1

2 Volume Equation Group Southeastern United States Supersection SE Middle Mixed Forest Piedmont SE Middle Mixed Forest Western Mid Coastal Plains Southwest High Plains Southwest Plateau Subtropical Prairie Parkland Gulf & Oak Prairie Equations Computes cubic foot volume from a 1 foot stump to a 4 inch top (VOLCFGRS) for poles and sawtimber and total volume for saplings. Saplings: DBH 1.0 and < 5.0 Plantation planted saplings: Poles: Saw timber: Where, VOLCFGRS = A1(SPN) + A2(SPN)x DBH 2 x HT Slash pine and loblolly pine (SPN 111 and 131): All other species: VOLCFGRS = B1(SPN) + B2(SPN)x DBH 2 x HT VOLCFGRS = x DBH 2 x HT Conifer (SPN<300), DBH 5.0 and < 9.0 Hardwood (SPN 300), DBH 5.0 and < 11.0 VOLCFGRS = C1(SPN) + C2(SPN) x DBH 2 x HT Conifer (SPN<300), DBH 9.0 Hardwood (SPN>300), DBH 11.0 VOLCFGRS = D1(SPN) + D2(SPN) x DBH 2 x HT VOLCFGRS = Cubic foot volume for use with FIA Database Description and Users Manual, Appendix J, Tables 4 and 5 DBH = Diameter at breast height (inches) H = Height (feet) A1 D2 = Coefficients by species (see table following equation) SPN = Species number 2

3 Cubic Foot Volume Equations for Southeastern US July 9, 2010 Volume Equation Coefficients by Species Species ID Common Name Genus Species A1 A2 B1 B2 C1 C2 D1 D2 10 fir spp. Abies spp Atlantic white-cedar Chamaecypar is thyoides Drooping juniper Juniperus flaccida southern redcedar Juniperus virginiana eastern redcedar Juniperus virginiana spruce spp. Picea spp sand pine Pinus clausa shortleaf pine Pinus echinata slash pine Pinus elliottii spruce pine Pinus glabra longleaf pine Pinus palustris Table Mountain pine Pinus pungens pitch pine Pinus rigida pond pine Pinus serotina eastern white pine Pinus strobus loblolly pine Pinus taeda Virginia pine Pinus virginiana baldcypress Taxodium distichum pondcypress Taxodium ascendens northern white-cedar Thuja occidentalis hemlock spp. Tsuga spp Florida maple Acer barbatum boxelder Acer negundo red maple Acer rubrum silver maple Acer saccharinum sugar maple Acer saccharum buckeye, horsechestnut spp. Aesculus spp birch spp. Betula spp

4 Species ID Common Name Genus Species A1 A2 B1 B2 C1 C2 D1 D2 371 yellow birch Betula alleghaniensi s hickory spp. Carya spp hackberry spp. Celtis spp flowering dogwood Cornus florida common persimmon Diospyros virginiana American beech Fagus grandifolia ash spp. Fraxinus spp honeylocust Gleditsia triacanthos loblolly-bay Gordonia lasianthus silverbell spp. Halesia spp American holly Ilex opaca butternut Juglans cinerea black walnut Juglans nigra sweetgum Liquidambar styraciflua yellow-poplar Liriodendron tulipifera cucumbertree Magnolia acuminata southern magnolia Magnolia grandiflora sweetbay Magnolia virginiana mulberry spp. Morus spp water tupelo Nyssa aquatica blackgum Nyssa sylvatica swamp tupelo Nyssa biflora American sycamore Platanus occidentalis cottonwood and poplar spp. Populus spp balsam poplar Populus balsamifera black cherry Prunus serotina white oak Quercus alba swamp white oak Quercus bicolor scarlet oak Quercus coccinea Durand oak Quercus sinuata southern red oak Quercus falcata cherrybark oak Quercus pagoda

5 Species ID Common Name Genus Species A1 A2 B1 B2 C1 C2 D1 D2 817 shingle oak Quercus imbricaria laurel oak Quercus laurifolia overcup oak Quercus lyrata bur oak Quercus macrocarpa blackjack oak Quercus marilandica swamp chestnut oak Quercus michauxii chinkapin oak Quercus muehlenberg ii water oak Quercus nigra pin oak Quercus palustris willow oak Quercus phellos chestnut oak Quercus prinus northern red oak Quercus rubra Shumard oak Quercus shumardii post oak Quercus stellata Delta post oak Quercus similis black oak Quercus velutina live oak Quercus virginiana dwarf post oak Quercus margarettiae bluejack oak Quercus incana black locust Robinia pseudoacaci a willow spp. Salix spp basswood spp. Tilia spp elm spp. Ulmus spp Other or unknown live tree Tree unknown

6 References McClure, J. and Cost, N. Unpublished equations developed by Joe McClure and Noel Cost. REF_VOLCFGRS_VW data base. Acquired from: Glenn Christensen, Resource Monitoring and Assessment/Forest Inventory and Analysis, USDA Forest Service, PNW Research Station, Portland Forest Sciences Laboratory. April