IGSNRR OpenIR
Inconsistent autotrophic respiration but consistent heterotrophic respiration responses to 5-years nitrogen addition under natural and planted Pinus tabulaeformis forests in northern China
Zhao, Bo1; Wang, Jinsong2; Cao, Jing1; Zhao, Xiuhai1; Gadow, Klaus V.3
2018-08-01
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume429Issue:1-2Pages:375-389
Corresponding AuthorZhao, Xiuhai(zhaoxh@bjfu.edu.cn)
AbstractBackground and aims Increased atmospheric N deposition is known to have significant effects on soil respiration (Rs) in natural and planted forest ecosystems. Responses of Rs to such N enrichment has been widely investigated in forest ecosystems, both in natural and planted forests. As natural and planted forests differ in many aspects (e.g. species composition, forest management and succession stage, soil properties etc.), the responses of Rs in natural and planted forests to N addition may be different. However, so far, few studies have made a direct comparison between natural versus planted forests. To fill this gap, we have examined how autotrophic (Ra), heterotrophic (Rh) and total Rs respond to experimental N addition in a natural and a planted Pinus tabulaeformis forests in northern China. Methods Three levels of N addition (CK = 0, LN = 50 and HN = 100 kg N ha(-1) yr.(-1)) were applied monthly over five growing seasons. Soil respiration and its components, soil properties, microbial biomass (MBC), enzymes activity and fine root biomass were measured. Results After 5-years of N addition, our results showed that: (1) for all three treatments, mean annual Rs of the planted forest were significantly higher than that of the natural forest; (2) in the natural forest, mean annual Rh was reduced by 16.8 and 28.3% under LN and HN treatments, respectively, whereas in the planted forest, mean annual Rh was reduced by 14.4 and 18.3% under LN and HN treatments, respectively. (3) mean annual Ra was increased by 47.6 and 59.5% under LN and HN, respectively, in the natural forest. In contrast, in the planted forest, LN and HN both enhanced Ra to the same rate. Conclusions In both natural and planted forests, the inhibition of Rh was largely associated with the decreased microbial biomass C (MBC) and reduced activity of the cellulose degrading enzyme. However, inconsistent patterns of Ra to N addition of different intensities in the natural vs. planted forests might be due to root ammonium toxicity under high N-availability scenarios. We demonstrated that the natural and planted forests may differ in their Rs responses to N addition, depending on different responses of Ra. Our results may have potential implications for forest management and predicting forest ecosystem carbon balance under future N scenarios.
KeywordSoil respiration Nitrogen addition Pinus tabulaeformis Root trenching Cellulose degrading enzyme Microbial biomass carbon
DOI10.1007/s11104-018-3702-x
WOS KeywordSOIL MICROBIAL BIOMASS ; DIFFERENTIAL RESPONSES ; EXTRACTION METHOD ; TEMPERATE FOREST ; TROPICAL FOREST ; ENZYME-ACTIVITY ; HARVARD FOREST ; CARBON STORAGE ; ORGANIC-CARBON ; FINE ROOTS
Indexed BySCI
Language英语
Funding ProjectState Key Program of National Natural Science Foundation of China[41330530]
Funding OrganizationState Key Program of National Natural Science Foundation of China
WOS Research AreaAgriculture ; Plant Sciences
WOS SubjectAgronomy ; Plant Sciences ; Soil Science
WOS IDWOS:000439759200028
PublisherSPRINGER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54543
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhao, Xiuhai
Affiliation1.Beijing Forestry Univ, State Forestry Adm, Res Ctr Forest Management Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Georg August Univ Gottingen, Burckhardt Inst, Gottingen, Germany
Recommended Citation
GB/T 7714
Zhao, Bo,Wang, Jinsong,Cao, Jing,et al. Inconsistent autotrophic respiration but consistent heterotrophic respiration responses to 5-years nitrogen addition under natural and planted Pinus tabulaeformis forests in northern China[J]. PLANT AND SOIL,2018,429(1-2):375-389.
APA Zhao, Bo,Wang, Jinsong,Cao, Jing,Zhao, Xiuhai,&Gadow, Klaus V..(2018).Inconsistent autotrophic respiration but consistent heterotrophic respiration responses to 5-years nitrogen addition under natural and planted Pinus tabulaeformis forests in northern China.PLANT AND SOIL,429(1-2),375-389.
MLA Zhao, Bo,et al."Inconsistent autotrophic respiration but consistent heterotrophic respiration responses to 5-years nitrogen addition under natural and planted Pinus tabulaeformis forests in northern China".PLANT AND SOIL 429.1-2(2018):375-389.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao, Bo]'s Articles
[Wang, Jinsong]'s Articles
[Cao, Jing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, Bo]'s Articles
[Wang, Jinsong]'s Articles
[Cao, Jing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, Bo]'s Articles
[Wang, Jinsong]'s Articles
[Cao, Jing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.