高浓度二氧化碳处理对红松幼苗土壤水解酶活性的影响

应用生态学报

高浓度二氧化碳处理对红松幼苗土壤水解酶活性的影响

贾夏^1,2;韩士杰²;赵永华³;周玉梅²

¹长安大学环境科学与工程学院, 西安 710054;
²中国科学院沈阳应用生态研究所, 沈阳 110016；
3长安大学地球科学与国土资源学院, 西安 710054

收稿日期:2005-12-02 修回日期:2006-09-05 出版日期:2006-11-18 发布日期:2006-11-18

Effects of elevated CO₂ on soil hydrolase activities associated with Pinus koraiensis seedlings

JIA Xia^1,2;HAN Shijie²;ZHAO Yonghua³;ZHOU Yumei²

¹College of Environmental Science and Engineering,Chang’an University, Xi’an 710054, China;
2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
3College of Earth Science and Land Resources, Chang’an University, Xi’an 710054, China

Received:2005-12-02 Revised:2006-09-05 Online:2006-11-18 Published:2006-11-18

摘要/Abstract

摘要： 研究了700和500 μmol·mol^-1高浓度CO₂处理的红松幼苗0～10 cm土层土壤蛋白酶、脲酶、淀粉酶、转化酶和磷酸酶活性的变化.结果表明，土壤蛋白酶(除7月)、脲酶、淀粉酶(除7月)和磷酸酶(除9月)活性在高浓度CO₂条件下极显著增加，而转化酶(除9月)活性却极显著降低.不同高浓度CO₂对酶活性的影响程度不同，500 μmol·mol^-1浓度CO₂处理对蛋白酶和磷酸酶活性的影响较700 μmol·mol^-1处理明显，而700 μmol·mol^-1浓度CO₂处理对脲酶、淀粉酶和转化酶活性的影响较500 μmol·mol^-1显著.

Abstract: In this study, Pinus koraiensis seedlings were grown under elevated CO₂ (500 and 700 μmol·mol^-1), and the hydrolase activities in 0～10 cm soil layer were determined. The results showed that compared with those under ambient condition, the activities of soil protease, urease, amylase and phosphatase under elevated CO₂ increased significantly, while invertase activity decreased significantly. Different concentration of elevated CO₂ had different effects on soil hydrolase activities. 500 μmol CO₂·mol^-1 had more significant effect on soil protease and phosphatase activities, while 700 μmol CO₂·mol^-1 had more significant effect on soil urease, amylase, and invertase activities.

Key words: Fenpropathrin, Phoxim, Mixture of pesticides, Soil microbe, Degradation

贾夏^1,2;韩士杰²;赵永华³;周玉梅². 高浓度二氧化碳处理对红松幼苗土壤水解酶活性的影响[J]. 应用生态学报.

JIA Xia^1,2;HAN Shijie²;ZHAO Yonghua³;ZHOU Yumei². Effects of elevated CO₂ on soil hydrolase activities associated with Pinus koraiensis seedlings[J]. Chinese Journal of Applied Ecology.