"PI/DATA CONTACT = Welker, Jeff (NREL, Colorado State University)/ Fahnestock, Jace (NREL-CSU)" DATA COVERAGE = START: 19980820; STOP: 20010705 UTC; INSTRUMENT = Sodium hydroxide (NaOH) base traps (chemical absorbtion techniques) LOCATION = see table "DATE VERSION = 1.0 (13 February 2002), FINAL" REMARKS = Wintertime carbon dioxide efflux estimates were made using 7N NaOH base traps that were in the field over the specified dates Site Location Plant community Treatment Date Installed Date Collected g C m-2 season-1 mg C m-2 d-1 Mean SE Mean SE Atqasuk 70.28N 157.24W Moist tussock - "August 20, 1998" "June 16, 1999" 24.10 0.62 80.32 2.05 Ivotuk 68.28N 155.44W Moist tussock - "August 21, 1998" "June 1, 1999" 18.40 0.63 64.79 2.21 Ivotuk 68.29N 155.44W Moist tussock/Moss - "August 21, 1998" "June 1, 1999" 21.91 3.49 77.14 12.30 Toolik Lake 68.38N149.38W Dry heath Control "August 28, 1998" "June 3, 1999" 15.76 0.57 56.69 2.05 Toolik Lake 68.38N149.38W Dry heath Snow Drift "August 28, 1998" "June 12, 1999" 21.34 0.66 74.36 2.29 Toolik Lake 68.38N149.38W Moist tussock Control "August 28, 1998" "June 3, 1999" 23.31 0.87 83.85 3.12 Toolik Lake 68.38N149.38W Moist tussock Snow Drift "August 28, 1998" "June 17, 1999" 42.02 0.33 143.92 1.12 Livengood 65.29N 148.30W Spruce forest - "August 25, 1999" "June 29, 2000" 53.89 8.03 174.95 26.06 Yukon 65.53N 149.45W Spruce forest - "August 25, 1999" "June 29, 2000" 30.73 3.45 99.76 11.19 Kanuti River 66.26N 150.37W Moist tussock - "August 25, 1999" "June 29, 2000" 25.22 3.70 81.89 12.00 Grayling Lake 66.58N 150.21W Shrub - "August 25, 1999" "June 29, 2000" 38.52 4.99 125.07 16.21 Gold Creek 67.30N 149.50W Forest - "August 25, 1999" "June 29, 2000" 33.02 4.90 107.20 15.90 Chandalar Shelf 68.03N 149.36W Shrub - "August 25, 1999" "June 29, 2000" 26.60 5.05 86.36 16.41 Galbraith 68.25N 149.37W Moist tussock - "August 27, 1999" "June 24, 2000" 23.85 2.13 78.44 6.99 Toolik Lake 68.38N149.38W Moist tussock - "August 29, 1999" "June 29, 2000" 23.39 3.11 76.94 10.23 Happy Valley 69.17N 148.82W Moist tussock - "August 27, 1999" "June 24, 2000" 25.68 1.34 85.32 4.44 Sag River 69.30N 148.63W Wet sedge - "August 27, 1999" "June 24, 2000" 20.18 1.68 67.04 5.60 Prudhoe Bay 70.23N 148.45W Wet sedge - "August 27, 1999" "June 24, 2000" 22.01 2.36 73.13 7.84 Barrow 71.18N 156.40W Wet sedge - "August 31, 1999" "June 19, 2000" 15.18 0.53 52.00 1.83 Alexandra Fiord 78.54N 75.55W Wet sedge Control "August 5, 1999" "June 19, 2000" 11.68 0.42 36.74 1.33 Alexandra Fiord 78.54N 75.55W Wet sedge Warmed "August 5, 1999" "June 19, 2000" 11.93 4.79 37.51 15.08 Alexandra Fiord 78.54N 75.55W Mesic Control "August 5, 1999" "June 19, 2000" 8.40 0.70 26.41 2.20 Alexandra Fiord 78.54N 75.55W Mesic Warmed "August 5, 1999" "June 19, 2000" 6.57 1.43 20.67 4.50 Alexandra Fiord 78.54N 75.55W Dry heath Control "August 5, 1999" "June 19, 2000" 6.82 1.76 21.43 5.52 Alexandra Fiord 78.54N 75.55W Dry heath Warmed "August 5, 1999" "June 19, 2000" 8.03 1.52 25.26 4.78 Toolik Lake 68.38N149.38W Dry heath Control "August 26, 1999" "June 25, 2000" 13.46 0.66 44.43 2.17 Toolik Lake 68.38N149.38W Dry heath Snow Drift "August 26, 1999" "June 25, 2000" 21.01 0.87 69.35 2.87 Toolik Lake 68.38N149.38W Moist tussock Control "August 26, 1999" "June 25, 2000" 24.62 0.57 81.27 1.88 Toolik Lake 68.38N149.38W Moist tussock Snow Drift "August 26, 1999" "June 25, 2000" 39.40 0.57 85.60 1.33 Council 64.47N 163.46W High Shrub - "September 21, 2000" "July 5, 2001" 96.51 0.18 313.33 0.57 Council 64.50N 163.42W Low Shrub - "September 21, 2000" "July 5, 2001" 78.87 0.34 256.07 1.10 Council 64.51N 163.41W Forest - "September 21, 2000" "July 5, 2001" 107.62 0.16 349.40 0.50 Council 64.51N 163.41W Woodland - "September 21, 2000" "July 5, 2001" 98.34 1.08 319.29 3.52 Council 64.50N 163.42W Tundra - "September 21, 2000" "July 5, 2001" 51.17 1.49 166.12 4.84 Fairbanks Clear-cut - "September 20, 2000" "July 4, 2001" 95.33 6.62 309.52 21.51 Fairbanks Forest - "September 20, 2000" "July 4, 2001" 106.34 0.84 345.25 2.74 Livengood 65.29N 148.30W Shrub - "September 20, 2000" "July 4, 2001" 79.11 1.50 256.85 4.88 Livengood 65.30N 148.36W Forest - "September 20, 2000" "July 4, 2001" 73.83 0.54 239.72 1.75 Yukon 65.53N 149.45W Clear-cut - "September 20, 2000" "July 4, 2001" 40.82 0.74 132.52 2.39 Yukon 65.53N 149.45W Forest - "September 20, 2000" "July 4, 2001" 52.28 2.76 169.74 8.98 Kanuti River 66.26N 150.37W Moist tussock - "September 20, 2000" "July 4, 2001" 28.59 2.45 92.81 7.95 Kanuti River 66.26N 150.37W Forest - "September 20, 2000" "July 4, 2001" 48.31 0.85 156.84 2.76 Grayling Lake 66.58N 150.21W Moist tussock - "September 20, 2000" "July 4, 2001" 44.25 2.13 143.68 6.92 Grayling Lake 66.58N 150.21W Forest - "September 20, 2000" "July 4, 2001" 70.93 0.67 230.29 2.16 Gold Creek 67.30N 149.50W Shrub - "September 20, 2000" "July 4, 2001" 30.88 1.71 100.26 5.54 Gold Creek 67.30N 149.50W Forest - "September 20, 2000" "July 4, 2001" 48.69 1.06 158.08 3.45 Chandalar Shelf 68.03N 149.36W Shrub - "September 20, 2000" "July 4, 2001" 29.46 1.77 95.67 5.74 Galbraith 68.25N 149.37W Moist tussock - "September 20, 2000" "July 4, 2001" 26.54 1.52 86.17 4.92 Toolik Lake 68.38N149.38W Moist tussock - "September 17, 2000" "July 3, 2001" 38.34 1.31 124.48 4.26 Happy Valley 69.05N 148.49W Moist tussock - "September 19, 2000" "July 2, 2001" 26.48 1.19 85.99 3.85 Sag River 69.30N 148.34W Wet sedge - "September 19, 2000" "July 2, 2001" 17.83 3.18 57.88 10.31 Prudhoe Bay 70.07N 148.29W Wet sedge - "September 19, 2000" "July 2, 2001" 15.65 2.98 50.81 9.67 Toolik Lake 68.38N149.38W Dry heath Control "September 17, 2000" "July 3, 2001" 9.45 1.87 30.67 6.08 Toolik Lake 68.38N149.38W Dry heath Snow Drift "September 17, 2000" "July 3, 2001" 16.33 1.09 53.01 3.54 Toolik Lake 68.38N149.38W Moist tussock Control "September 17, 2000" "July 3, 2001" 21.88 1.36 71.02 4.41 Toolik Lake 68.38N149.38W Moist tussock Snow Drift "September 17, 2000" "July 3, 2001" 33.75 2.41 109.59 7.83