Differential response of soil CO2 , CH4 , and N2 O emissions to edaphic properties and microbial attributes following afforestation in central China

© 2021 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 27(2021), 21 vom: 18. Nov., Seite 5657-5669
1. Verfasser: Chen, Qiong (VerfasserIn)
Weitere Verfasser: Long, Chunyan, Chen, Jingwen, Cheng, Xiaoli
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article greenhouse gas land use type methane uptake soil microbial attribute soil microenvironment Greenhouse Gases Soil Carbon Dioxide 142M471B3J mehr... Nitrous Oxide K50XQU1029 Methane OP0UW79H66
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520 |a Land use change specially affects greenhouse gas (GHG) emissions, and it can act as a sink/source of GHGs. Alterations in edaphic properties and microbial attributes induced by land use change can individually/interactively contribute to GHG emissions, but how they predictably affect soil CO2 , CH4 , and N2 O emissions remain unclear. Here, we investigated the direct and indirect controls of edaphic properties (i.e., dissolved organic carbon [DOC], soil organic C, total nitrogen, C:N ratio, NH4+ -N, NO3- -N, soil temperature [ST], soil moisture [SM], pH, and bulk density [BD]) and microbial attributes (i.e., total phospholipid fatty acids [PLFAs], 18:1ω7c, nitrifying genes [ammonia-oxidizing archaea, ammonia-oxidizing bacteria], and denitrifying genes [nirS, nirK, and nosZ]) over the annual soil CO2 , CH4 , and N2 O emissions from the woodland, shrubland, and abandoned land in subtropical China. Soil CO2 and N2 O emissions were higher in the afforested lands (woodland and shrubland) than in the abandoned land, but the annual cumulative CH4 uptake did not significantly differ among all land use types. The CO2 emission was positively associated with microbial activities (e.g., total PLFAs), while the CH4 uptake was tightly correlated with soil environments (i.e., ST and SM) and chemical properties (i.e., DOC, C:N ratio, and NH4+ -N concentration), but not significantly related to the methanotrophic bacteria (i.e., 18:1ω7c). Whereas, soil N2 O emission was positively associated with nitrifying genes, but negatively correlated with denitrifying genes especially nosZ. Overall, our results suggested that soil CO2 and N2 O emissions were directly dependent on microbial attributes, and soil CH4 uptake was more directly related to edaphic properties rather than microbial attributes. Thus, different patterns of soil CO2 , CH4 , and N2 O emissions and associated controls following land use change provided novel insights into predicting the effects of afforestation on climate change mitigation outcomes 
650 4 |a Journal Article 
650 4 |a greenhouse gas 
650 4 |a land use type 
650 4 |a methane uptake 
650 4 |a soil microbial attribute 
650 4 |a soil microenvironment 
650 7 |a Greenhouse Gases  |2 NLM 
650 7 |a Soil  |2 NLM 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
650 7 |a Nitrous Oxide  |2 NLM 
650 7 |a K50XQU1029  |2 NLM 
650 7 |a Methane  |2 NLM 
650 7 |a OP0UW79H66  |2 NLM 
700 1 |a Long, Chunyan  |e verfasserin  |4 aut 
700 1 |a Chen, Jingwen  |e verfasserin  |4 aut 
700 1 |a Cheng, Xiaoli  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Global change biology  |d 1999  |g 27(2021), 21 vom: 18. Nov., Seite 5657-5669  |w (DE-627)NLM098239996  |x 1365-2486  |7 nnns 
773 1 8 |g volume:27  |g year:2021  |g number:21  |g day:18  |g month:11  |g pages:5657-5669 
856 4 0 |u http://dx.doi.org/10.1111/gcb.15826  |3 Volltext 
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