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Autotrophic and heterotrophic components of soil respiration caused by rhizosphere priming effects in a plantation
Song, Wenchen1; Tong, Xiaojuan1; Zhang, Jinsong2; Meng, Ping2; Li, Jun3
2017
Source PublicationPLANT SOIL AND ENVIRONMENT
ISSN1214-1178
Volume63Issue:7Pages:295-299
Corresponding AuthorTong, Xiaojuan(tongxj@bjfu.edu.cn)
AbstractRoot-exudate inputs can stimulate the decomposition of soil organic carbon by priming microbial activity, but its ecological significance is still not fully understood. This study evaluated autotrophic respiration and heterotrophic respiration driven by roots using the C-13 natural abundance method in a Robinia pseudoacacia plantation. The results showed that the priming effect existed in deep soil of the plantation. The proportions of autotrophic respiration and heterotrophic respiration deriving from priming effect to total soil respiration varied with soil depth. Rhizomicrobial respiration (RMR) accounted for about 15% of the total soil respiration, and the rate of priming decomposition of soil organic matter (PSOM) was only about 5% of the total soil respiration. RMR was significantly positively correlated with PSOM. Heterotrophic respiration derived by the priming effect was too weak to have a positive impact on atmospheric CO2.
Keywordforest ecosystem nutrient cycling stable isotope microorganism carbon dioxide
DOI10.17221/287/2017-PSE
WOS KeywordC-13 NATURAL-ABUNDANCE ; ORGANIC-MATTER ; CO2 EFFLUX ; RHIZOMICROBIAL RESPIRATION ; MICROBIAL BIOMASS ; ROOT ; FOREST ; CARBON ; MICROORGANISMS ; DECOMPOSITION
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31570617] ; National Natural Science Foundation of China[31100322]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000405832200002
PublisherCZECH ACADEMY AGRICULTURAL SCIENCES
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62734
Collection中国科学院地理科学与资源研究所
Corresponding AuthorTong, Xiaojuan
Affiliation1.Beijing Forestry Univ, Coll Forestry, Beijing, Peoples R China
2.Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry Adm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Song, Wenchen,Tong, Xiaojuan,Zhang, Jinsong,et al. Autotrophic and heterotrophic components of soil respiration caused by rhizosphere priming effects in a plantation[J]. PLANT SOIL AND ENVIRONMENT,2017,63(7):295-299.
APA Song, Wenchen,Tong, Xiaojuan,Zhang, Jinsong,Meng, Ping,&Li, Jun.(2017).Autotrophic and heterotrophic components of soil respiration caused by rhizosphere priming effects in a plantation.PLANT SOIL AND ENVIRONMENT,63(7),295-299.
MLA Song, Wenchen,et al."Autotrophic and heterotrophic components of soil respiration caused by rhizosphere priming effects in a plantation".PLANT SOIL AND ENVIRONMENT 63.7(2017):295-299.
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