Assessing environmental changes in grasslands.
Ausubel
Jesse H
JH
Waggoner
Paul E
PE
D001272:Atmosphere; D002140:California; D002245:Carbon Dioxide; D002980:Climate; D017753:Ecosystem; D005308:Fertilizers; D009584:Nitrogen; D006109:Poaceae / Q000254:growth & development*; D012987:Soil
D005308:Fertilizers; D012987:Soil; D002245:Carbon Dioxide; D009584:Nitrogen