130 Jacobi et al: Firewood Transport by National and State Park Campers Table 2. Number and percentages of camper recreation types with firewood at seven Colorado State Parks in 2008, and 13 western U.S. National Parks in 2009. Recreation Type Colorado State Parks 2008z Campers # Recreational vehicle Trailer Tent Trailer Tent Other Total interviewed (see methods section). x 85 77 20 54 2 238 %y 34 32 8 25 1 100 Campers with firewood # 30 31 10 35 1 107 %yx 56 50 68 85 37 62 so sample size is only relevant to personal surveys (n = 238). Percentages and weights adjusted accordingly. y # 266 255 144 940 53 1658 National Parks 2009 Campers %y 22 18 7 49 4 100 Campers with firewood # 147 175 104 661 29 1116 %yx 44 64 61 67 48 60 z Colorado State Park surveys included paper surveys handed out in addition to personal surveys. Paper surveys did not ask campers what type of camping vehicle they had Camper weighted data given for recreation type mean proportions: weighting factor was computed from total 2008 campers per park divided by the number of campers The percent of campers with firewood was significantly different among the six recreation types surveyed based on a χ2 test at both State and National Parks (both p < 0.0001) Table 3. State origin of firewood and home state of campers at seven Colorado State Parks in 2008, and 13 western U.S. National Parks in 2009. State origin of firewood (proximity to park state) Arizona (Grand Canyon), n = 83 Park state Out-of-state Outside western U.S. Nevada (Lake Mead), n = 44 Park state Out-of-state Outside western U.S. Colorado, n = 244 Park state Out-of-state Outside western U.S. Utah, n = 192 Park state Out-of-state Outside western U.S. Wyoming, n = 605 Park state Out-of-state Outside western U.S. Park state Out-of-state Outside western U.S. Overall home state of National Park campers with firewood (weighted counts) Park state Out-of-state Outside western U.S. Overall home state of State Park campers with firewood Mean (%)z (%)z 28 14 50 88 10 0 47 14 15 32 18 8 5 1 0 12 11 24 (233,945)y 96 (52,189)y 4 (2,358)y 2 (1,126)y (54,547)y 96 (52,189)y 4 (2,358)y 2 (1,126)y (54,547)y Campers from states (%)z 35 50 0 4 40 0 6 22 12 23 50 6 21 46 20 64 (587,119)y 39 (329,919)y 5 (45,999)y (929,226)y 62 (599,072)y 37 (360,046)y 5 (47,352)y (971,307)y National Parks grand totals, n = 1,168 31 20 47 6 30 (288,266)y Colorado State Parks grand totals, n = 193 78 2 0 0 74 (40,482)y 10 0 3 (1,534)y states (%)z 37 36 50 8 50 100 47 64 73 45 32 86 75 53 80 49 41 83 46 (449,096)y 20 90 100 23 (12,531)y Campers from Campers with Firewood Park state Neighboring Nonneighboring Western states Outside firewood (%)z (%)z 80 29 5 57 48 9 92 10 4 41 58 5 77 27 3 72 27 5 55 45 9 88 10 4 41 57 5 73 26 3 37 55 50 96 40 0 54 59 15 45 34 6 39 61 37 50 44 17 48 (461,805)y 82 52 0 81 (44,333)y 63 45 50 4 60 100 46 41 85 55 66 94 61 39 63 50 56 83 52 (509,502)y 18 48 100 19 (10,409)y (weighted counts) z Camper weighted data given for state mean proportions: weighting factor was computed from total 2008 campers per park divided by the number of campers interviewed (see METHODS). y Campers = camper group = total overnight visitors per park in 2008 (NPS 2008) divided by average number of persons-per-vehicle. Note: n = state origins of firewood (if more than one state origin was given each was counted). Mean percentages of park state and out-of-state may not add up to 100% because unknowns are not represented in the table. Percentages may exceed 100% because some campers had two state origins of wood. western U.S. (%)z ©2011 International Society of Arboriculture
May 2011
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