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Fine Root Biomass Mediates Soil Fauna Community in Response to Nitrogen Addition in Poplar Plantations (Populus deltoids) on the East Coast of China
Bian, Haixue1,2; Geng, Qinghong1,2; Xiao, Hanran1,2; Shen, Caiqin3; Li, Qian4; Cheng, Xiaoli5; Luo, Yiqi6; Ruan, Honghua1,2; Xu, Xia1,2
Corresponding AuthorXu, Xia(xuxia.1982@njfu.edu.cn)
2019-02-01
Source PublicationFORESTS
ISSN1999-4907
Volume10Issue:2Pages:16
AbstractSoil fauna is critical for maintaining ecosystem functioning, and its community could be significantly impacted by nitrogen (N) deposition. However, our knowledge of how soil-faunal community composition responds to N addition is still limited. In this study, we simulated N deposition (0, 50, 100, 150, and 300 kg N ha(-1) year(-1)) to explore the effects of N addition on the total and the phytophagous soil fauna along the soil profile (0-10, 10-25, and 25-40 cm) in poplar plantations (Populus deltoids) on the east coast of China. Ammonium nitrate (NH4NO3) was dissolved in water and sprayed evenly under the canopy with a backpack sprayer to simulate N deposition. Our results showed that N addition either significantly increased or decreased the density (D) of both the total and the phytophagous soil fauna (D-total and D-p) at low or high N addition rates, respectively, indicating the existence of threshold effects over the range of N addition. However, N addition had no significant impacts on the number of groups (G) and diversity (H) of either the total or the phytophagous soil fauna (G(total), G(p) and H-total, H-p). With increasing soil depth, D-total, D-p, G(total), and G(p) largely decreased, showing that the soil fauna have a propensity to aggregate at the soil surface. H-total and H-p did not significantly vary along the soil profile. Importantly, the threshold effects of N addition on D-total and D-p increased from 50 and 100 to 150 kg N ha(-1) year(-1) along the soil profile. Fine root biomass was the dominant factor mediating variations in D-total and D-p. Our results suggested that N addition may drive changes in soil-faunal community composition by altering belowground food resources in poplar plantations.
Keywordsoil fauna N addition soil profile community structure food resources poplar plantations
DOI10.3390/f10020122
Funding OrganizationNational Key Research and Development Program of China ; Recruitment Program for Young Professionals ; Jiangsu Specially Appointed Professors Program ; Natural Science Key Fund for Colleges and Universities of Jiangsu Province of China ; Six Talent Peaks Program of Jiangsu Province ; Nanjing Forestry University Science Fund for Distinguished Young Scholars (the 5151 Talent Program) ; Jiangsu Collegiate Science and Technology Fund for the Excellent Innovative Research Teams ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; National Key Research and Development Program of China ; Recruitment Program for Young Professionals ; Jiangsu Specially Appointed Professors Program ; Natural Science Key Fund for Colleges and Universities of Jiangsu Province of China ; Six Talent Peaks Program of Jiangsu Province ; Nanjing Forestry University Science Fund for Distinguished Young Scholars (the 5151 Talent Program) ; Jiangsu Collegiate Science and Technology Fund for the Excellent Innovative Research Teams ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFD0600204] ; Recruitment Program for Young Professionals ; Jiangsu Specially Appointed Professors Program ; Natural Science Key Fund for Colleges and Universities of Jiangsu Province of China[17KJA180006] ; Six Talent Peaks Program of Jiangsu Province[JY-041] ; Six Talent Peaks Program of Jiangsu Province[TD-XYDXX-006] ; Nanjing Forestry University Science Fund for Distinguished Young Scholars (the 5151 Talent Program) ; Jiangsu Collegiate Science and Technology Fund for the Excellent Innovative Research Teams ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000460744000046
WOS KeywordLEAF-LITTER DECOMPOSITION ; NET PRIMARY PRODUCTIVITY ; LONG-TERM FERTILIZATION ; CONIFEROUS FOREST ; FOOD WEBS ; DEPOSITION ; DIVERSITY ; ABUNDANCE ; CARBON ; PLANT
PublisherMDPI
Funding OrganizationNational Key Research and Development Program of China ; Recruitment Program for Young Professionals ; Jiangsu Specially Appointed Professors Program ; Natural Science Key Fund for Colleges and Universities of Jiangsu Province of China ; Six Talent Peaks Program of Jiangsu Province ; Nanjing Forestry University Science Fund for Distinguished Young Scholars (the 5151 Talent Program) ; Jiangsu Collegiate Science and Technology Fund for the Excellent Innovative Research Teams ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; National Key Research and Development Program of China ; Recruitment Program for Young Professionals ; Jiangsu Specially Appointed Professors Program ; Natural Science Key Fund for Colleges and Universities of Jiangsu Province of China ; Six Talent Peaks Program of Jiangsu Province ; Nanjing Forestry University Science Fund for Distinguished Young Scholars (the 5151 Talent Program) ; Jiangsu Collegiate Science and Technology Fund for the Excellent Innovative Research Teams ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27930
Corresponding AuthorXu, Xia
Affiliation1.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China
2.Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Jiangsu, Peoples R China
3.Dongtai Forest Farm, Yancheng 224200, Jiangsu, Peoples R China
4.Nanjing Forestry Univ, Adv Anal & Testing Ctr, Nanjing 210037, Jiangsu, Peoples R China
5.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
6.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA
Recommended Citation
GB/T 7714
Bian, Haixue,Geng, Qinghong,Xiao, Hanran,et al. Fine Root Biomass Mediates Soil Fauna Community in Response to Nitrogen Addition in Poplar Plantations (Populus deltoids) on the East Coast of China[J]. FORESTS,2019,10(2):16.
APA Bian, Haixue.,Geng, Qinghong.,Xiao, Hanran.,Shen, Caiqin.,Li, Qian.,...&Xu, Xia.(2019).Fine Root Biomass Mediates Soil Fauna Community in Response to Nitrogen Addition in Poplar Plantations (Populus deltoids) on the East Coast of China.FORESTS,10(2),16.
MLA Bian, Haixue,et al."Fine Root Biomass Mediates Soil Fauna Community in Response to Nitrogen Addition in Poplar Plantations (Populus deltoids) on the East Coast of China".FORESTS 10.2(2019):16.
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