Dana Mitchell Southern Research Station Forest Operations Research Unit
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1 Dana Mitchell Southern Research Station Forest Operations Research Unit
2 Participants SRS Center for Bottomland Hardwoods d SRS Forest Operations Mississippi State University Louisiana Tech University
3 Outline Study Site Equipment Overview Next Steps for Harvesting Implementation
4
5 Study Site LOWER MISSISSIPPI ALLUVIAL VALLEY (LMAV) History Ecologically degraded area Afforestation efforts Important wetlands Bosco Site LMAV Photo credit: Ducks Unlimited Photo credit: NASA
6 Study Site LMAV Army Corp of Engineers 100 acres SRWC established in 2.5 acre plots Climate 3 replicates of each species/ spacing Plot rows = 660 long, 165 wide Winter Flooding Summer Drought
7 Study Site LMAV Species Eastern cottonwood Black willow Red maple American sycamore Source: Gardiner and Oliver, 2005
8 Study Site LMAV Spacing 3 x 3 (4100 cuttings/ac) 2.5 within/between row pairs, 6 between double rows Harvest years 4, 7 & 10 6 x 9 (807 cuttings/ac) Thin year 3, CC year 5 Reestablish for 2nd rotation 12 x 12 (302 cuttings/ac) Harvest year 10 Harvest Nov/Dec
9
10 Equipment Overview Criteria Cut stems in a row High production rate with limited backward movement (not drive to tree) High floatation, low psi Effectiveness with bushy stems? Effectiveness with single stems? Hydro Ax Feller Buncher Hyd Mech Prototype
11 Equipment Overview MULCHING WITH BALING Claas 2 pass system Mulch Collect/bale Netting used to secure bales Transport bale to roadside Impurities, Ash
12 Equipment Overview MULCHING WITH BALING FLD WB 55 Bio baler 7.5 cutting swath Tractor powered (185 hp) minutes/bale (pmh) 14.7 bales/pmh 1,000 lb bales (green wt) Photo credit: Anderson Group Baling twine Stop to drop bale Transport bale to roadside Photo credit: Anderson Group
13 Equipment Overview MULCHING WITH TRAILER Fecon 1 pass system Operational characteristics Transport chips to landing Size / turning radius Low psi on prime mover, tracks offers flotation on wet soils Trafficability of trailer on wet soils? Cutting action = teeth Impact of tooth type on stool re sprouting
14 Equipment Overview MOBILE CHIPPING Fecon RTC 22 Bio Mass Chipper 2 pass system Production remains focused on chipping System would include a felling operation and trailer transport to roadside Source:
15 Equipment Overview MOBILE CHIPPING Bruks 2 pass system Second machine needed for felling Available with an integrated chip bin Machine width ft Weight, size, maneuverability Transport trailer to roadside STC Photo credit:
16 Equipment Overview MOBILE MULCH/BALING GyroTrac (BBS) pass system Chips Cutting action from knives Re sizer Round bales 88 cutting width Bale transport could require a second machine PSI on baler? Turning radius?
17 Equipment Overview SINGLE STEM HARVEST (COTTONWOOD) Felling Machine Skidder No backing movement Tracked for floatation Boom reach reduces trafficking of site Accumulating arms High production with specifically designed shears Light payload, numerous stems medium hp skidder large grapples. Source: explainthatstuff.com
18 Equipment Overview SUMMARY # of passes Machine Width Stem Impacts Willow Turning radius Floatation Photo credit: Anderson Group Kisatchie NF Strip Thinning Project
19
20 Next Step: Equipment Selection Trial harvest stool integrity for coppice sprouting Multiple Systems? Single vs multi stem Feedstock specifications at processing facility (chipping vs mulching) Source: backyardbutterflygarden.com Source: explainthatstuff.com li
21 Next Step: SRWC Harvesting Implementation Production and Cost Studies Carbon Footprint for Entire Project Stool Impacts Site Impacts Growth, yield, neo tropical migrants, non game birds
22 Thank you Dana Mitchell, Research Engineer US Forest Service, Southern Research Station Forest Operations Research Unit Auburn, AL (334)
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