摘要
1 引言自19世纪70年代工业化革命以来,由于化石燃料燃烧、林草地开垦农用等已引起CO2大气排放的不断增加,可能使未来的50-100年内,全球大气CO2将增加1倍左右.
The response of soil urease and phosphatase activities at different rice growth stages to free air CO 2 enrichment (FACE) was studied. The results showed that comparing with the ambient atmospheric CO 2 concentration (370μmol·mol~ -1), FACE (570μmol·mol~ -1) significantly increased the urease activity of 0～5cm soil layer at the vigorous growth stage of rice, whole that of 5～10cm layer had no significant change during the whole growing season. Phosphatase activity of 0～5cm and 5～10cm soil layers significantly increased, and the peak increment was at the vigorous growth stage of rice.
出处
《应用生态学报》
CAS
CSCD
2002年第10期1356-1357,共2页
Chinese Journal of Applied Ecology
基金
中国科学院知识创新重要方向项目 (KZCX2 40 8)
国家自然科学基金重大国际合作研究资助项目 (4 0 12 0 14 0 817) .
关键词
大气CO2增加
土壤脲酶
磷酸酶
影响
酶活性
Free-air CO 2 enrichment (FACE), Soil, Urease, Phosphatase, Activities.
