Planetary Systems and Operating Spaces
Rockstrom et al. Sept 2009. A safe opera5ng space for humanity. Nature.
41,755 MtCO2 equiv total in 2000
Slide Title goes here
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NRCS: Soil Biology Primer www.swcs.org
Indoor CO2 probe measurements with experimental treatments
CO2 traps using 5tra5on method-‐”Communi5es” package
Agriscience Data Sept 2010
Cut vs. Uncut Grass Treatment
Column1 Column2 Column3
Values in parts per million (ppm)
r Collec9o n
Wet vs. Dry Soil
Column1 Column2 Column3 346136.11 11 1900 35469.444 44 1500 603211.11 11 535 1311.6666 67 701.71812 95 405.13715 1 2121.9409 501.39236 69 to 47
Control 1
1504 1243225
Control 1
Control 2
1274 1809025
Control 2
Control 3
5079 6051600 max value
Control 3
Ctrl Average (cut grass) Std Dev Std Error Range of Accuracy: Uncut Grass 1 Uncut Grass 1 Uncut Grass 1 Uncut Average Std Dev Std Error Range of Accuracy:
Disturbed vs. Undisturbed Soil Control 1 Control 2 Control 3 Ctrl Average (undisturbed) Std Dev Std Error Range of Accuracy: Disturbed 1 Disturbed 2 Disturbed Average Std Dev Std Error Range of Accuracy:
2619 2133.5240 8 1231.7907 02 5082.5814 155.41859 04 to 62 304336.11 11 1446 31093.444 44 718 140875.11 11 519 894.33333 33 488.00853 82 281.75186 09 1457.8370 330.82961 55 to 16
Ctrl Average
Column1 Column2 Column3 1504 1243225 1274 1809025 5079 6051600 max value 2619 2133.5240 8 1231.7907 02 5082.5814 155.41859 04 to 62 5079 144 max value 5055 144 max value 5067 16.970562 75 12 5091 to 5043
Fer5lized vs. Unfer5lized Column1
Std Dev Std Error Range of Accuracy:
Wet 1
2600
360000
Wet 2
1100
810000
Wet 3
2300
90000
Wet Average Std Dev Std Error Range of Accuracy:
2000 793.72539 33 458.25756 95 2916.5151 39 to
1083.4848 61
5500 2300
Fer5lized Control
Outgassing Buckets Student experiments