[Effect of elevated atmospheric CO2 on soil urease and phosphatase activities].
The response of soil urease and phosphatase activities at different rice growth stages to free air CO2 enrichment (FACE) was studied. The results showed that comparing with the ambient atmospheric CO2 concentration (370 mumol.mol-1), FACE (570 mumol.mol-1) significantly increased the urease activity of 0-5 cm soil layer at the vigorous growth stage of rice, whole that of 5-10 cm layer had no significant change during the whole growing season. Phosphatase activity of 0-5 cm and 5-10 cm soil layers significantly increased, and the peak increment was at the vigorous growth stage of rice.
Chen
Lijun
L
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016.
Wu
Zhijie
Z
Huang
Guohong
G
Zhou
Likai
L
D000388:Air; D001272:Atmosphere; D002245:Carbon Dioxide / Q000502:physiology*; D010744:Phosphoric Monoester Hydrolases / Q000378:metabolism*; D012987:Soil / Q000032:analysis*; D014510:Urease / Q000378:metabolism*
D012987:Soil; D002245:Carbon Dioxide; D010744:Phosphoric Monoester Hydrolases; D014510:Urease