How Can We Incorporate Considerations of Trees and Environmental Benefits into Community and Site Development Planning?
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How Can We Incorporate Considerations of Trees and Environmental Benefits into Community and Site Development Planning? T. Davis Sydnor, The Ohio State University Developers often clear cut any existing vegetation on a site before development begins and replant later with 2-inch trees. Considering which trees to retain, evaluating some of the commonly overlooked development costs, and determining future environmental benefits that would be lost can lead to a more environmentally responsible development. Additionally recovering, deferring or retaining benefits may lower initial development costs as well as long term living and maintenance expenses.
How Can We Incorporate Considerations of Trees and Environmental Benefits into Community and Site Development Planning?
- 2. By T. Davis Sydnor Professor Emeritus School of Environment and Natural Resources The Ohio State University sydnor.1@osu.edu 614-738-0667
- 4. We are always asked for comments after the planting fails to meet the original design intent.
- 6. Resistance to change starts here
- 8. Enter the One Framework Plan
- 9. Some university constraints No net gain in academic space
- 10. Now (left) and Proposed (right)
- 12. Now (left) and Proposed (right)
- 15. Estimated Expenses for Removal and Replacement of Trees in the Area Slated for the Athletic Complex Development REMOVAL COSTS PER TREE REMOVAL TOTALS REPLACEMENT REPLACEMENT COST/TREE TOTALS (2-in) REMOVAL AND REPLACEMENT SIZE NUMBER 1-3 28 $100 $2,800 $290 $8,120 $10,920 3-6 123 $375 $46,125 $290 $35,670 $81,795 6-12 136 $375 $51,000 $290 $39,440 $90,440 12-18 125 $675 $84,375 $290 $36,250 $120,625 18-24 87 $675 $58,725 $290 $25,230 $83,955 24-30 40 $1,290 $51,600 $290 $11,600 $63,200 30-36 20 $1,625 $32,500 $290 $5,800 $38,300 36-42 9 $2,150 $19,350 $290 $2,610 $21,960 TOTALS 568 $164,720 $511,195 $346,475
- 16. Landscape Values of 568 Existing Trees in the Area Slated for Development into the Athletic Complex. BASIC VALUE SPECIES VALUE CONDITION VALUE LOCATION VALUE LANDSCAPE LANDSCAPE VALUE VALUE EACH SIZE NUMBER 1-3 (2) 28 $205 0.80 0.80 0.80 $105 $2,939 3-6 (5) 123 $750 0.80 0.80 0.80 $384 $47,232 6-12 (9) 136 $2,170 0.80 0.80 0.80 $1,111 $151,101 12-18 (15) 125 $4,100 0.80 0.80 0.80 $2,099 $262,400 18-24 (21) 87 $6,570 0.80 0.80 0.80 $3,364 $292,654 24-30 (27) 40 $9,630 0.80 0.80 0.80 $4,931 $197,222 30-36 (33) 20 $13,300 0.80 0.80 0.80 $6,810 $136,192 36-42 (39) 9 $17,100 0.80 0.80 0.80 $8,755 $78,797 TOTALS 568 $1,168,538
- 17. Annual environmental benefits Benefits Stormwater Aesthetic/Other Energy Air Quality CO2 Total Benefits Total ($) $/tree $21,483 $38 $21,312 $38 $16,390 $29 $2,439 $4 $2,088 $4 $63,712 $112
- 18. Annual Environmental Benefits for Years 1-75 and Cumulative Benefits for Three, Selected Twenty-five Year Segments YEAR ANNUAL BENEFITS YEAR ANNUAL BENEFITS YEAR ANNUAL BENEFITS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 $2,937 $3,129 $3,331 $3,547 $3,777 $4,022 $4,282 $4,560 $4,855 $5,170 $5,505 $5,862 $6,242 $6,646 $7,077 $7,535 $8,024 $8,544 $9,097 $9,687 $10,315 $10,983 $11,695 $12,452 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 $14,118 $15,033 $16,008 $17,045 $18,149 $19,325 $20,578 $21,911 $23,331 $24,843 $26,453 $28,167 $29,992 $31,935 $34,005 $36,208 $38,555 $41,053 $43,713 $46,546 $49,562 $52,774 $56,193 $59,835 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 $67,841 $72,237 $76,918 $81,902 $87,209 $92,860 $98,878 $105,285 $112,107 $119,372 $127,107 $135,344 $144,114 $153,453 $163,396 $173,984 $185,259 $197,263 $210,046 $223,657 $238,150 $253,582 $270,014 $287,511 25 $13,259 50 $63,712 75 $306,142 YEARS 1-25 $172,534 YEARS 25-50 $829,045 YEARS 50-75 $3,983,629
- 19. Report now appended to development plans OSU will try to move plants smaller than 8 inch Will consider trees greater than 22 inch when siting buildings