NDLI: Responses of soil enzymes to long-term CO$_{2}$ enrichment in forest ecosystems of Changbai Mountains

Content Provider	Springer Nature Link
Author	Xin, Li hua Han, Shi jie Li, Li Zhou, Yu mei Zheng, Jun qiang
Copyright Year	2007
Abstract	A study was conducted to determine the responses of soil enzymes (invertase, polyphenol oxidase, catalase, and dehydrogenase) to long-term CO$_{2}$ enrichment at the Research Station of Changbai Mountain Forest Ecosystems, Chinese Academy of Sciences (42°24′N, 128°28′E; 738 m in elevation) in the northeast China during 1999–2006. Three treatments of the CO$_{2}$ enrichment, designed as 500 μmol·mol$^{−1}$ CO$_{2}$ open-top chamber (OTC), ambient control chamber and unchambered field (approx. 370 μmol·mol$^{−1}$CO$_{2}$), were conducted with Pinus koraiensis and Pinus sylvestriformis tree species. Soil sampling was made and analyzed separately in spring, summer and autumn in 2006 after the soil enzymes were exposed to elevated CO$_{2}$ concentration (500 μmol·mol$^{−1}$) for eight growing seasons. Results showed that, at elevated CO$_{2}$ concentration (500 μmol·mol$^{−1}$), the activities of invertase (except for the summer samples of P. koraiensis) presented a remarkable decline in all growing seasons, while the activities of dehydrogenase had an increase but only part of the results was remarkable; the activities of polyphenol oxidase in P. sylvestriformis rhizosphere showed a remarkable decrease; the catalase activities increased in spring, while in turn were decline in other seasons. This study also revealed that the soil enzyme activities are significantly correlated with the tree species under the CO$_{2}$ enhancement.
Starting Page	119
Ending Page	122
Page Count	4
File Format	PDF
ISSN	1007662X
Journal	Journal of Forestry Research
Volume Number	18
Issue Number	2
e-ISSN	19930607
Language	English
Publisher	Northeast Forestry University and Ecological Society of China
Publisher Date	2007-01-01
Publisher Place	Harbin
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	CO$_{2}$ concentration CO$_{2}$ enrichment Soil enzymes Invertase Dehydrogenase Catalase Polyphenol oxidase Forestry
Content Type	Text
Resource Type	Article
Subject	Forestry

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