Abstract：
:Dissolved oxygen (DO) concentrations have often been shown to be important to decomposition rates of plant litter and thus may be a key factor in determining the supply of dissolved organic carbon (DOC) and carbon-dependent denitrification in wetlands. During the 2 months operation, DOC accumulation in anaerobic condition was superior to aerobic condition due to higher activities of hydrolase enzymes and lower hydrolysates converted to gaseous C. Also, much higher denitrification rates were observed in wetland when using anaerobic litter leachate as the carbon source, and the available carbon source (ACS) could be used as a good predictor of denitrification rate in wetland. According to the results of this study, extracellular enzymes activities (EEAs) in wetland would change as a short-term consequence of DO. This may alter balance of litter carbon flux and the characteristics of DOC, which may, in turn, have multiple effects on denitrification in wetlands.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Chen Y,Wen Y,Cheng J,Xue C,Yang D,Zhou Qdoi
10.1016/j.biortech.2010.10.122subject
Has Abstractpub_date
2011-02-01 00:00:00pages
2433-40issue
3eissn
0960-8524issn
1873-2976pii
S0960-8524(10)01778-5journal_volume
102pub_type
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