Fine Root Biomass Mediates Soil Fauna Community in Response to Nitrogen Addition in Poplar Plantations (Populus deltoids) on the East Coast of China
文献类型：期刊论文
| 作者 | Bian, Haixue2,3; Geng, Qinghong2,3; Xiao, Hanran2,3; Shen, Caiqin4; Li, Qian5; Cheng, Xiaoli1; Luo, Yiqi6; Ruan, Honghua2,3; Xu, Xia2,3 |
| 刊名 | FORESTS
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 10期号:2页码:16 |
| 关键词 | soil fauna N addition soil profile community structure food resources poplar plantations |
| ISSN号 | 1999-4907 |
| DOI | 10.3390/f10020122 |
| 英文摘要 | Soil 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. |
| 资助项目 | National 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研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000460744000046 |
| 出版者 | MDPI |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/7558]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Xu, Xia |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 2.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China 3.Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Jiangsu, Peoples R China 4.Dongtai Forest Farm, Yancheng 224200, Jiangsu, Peoples R China 5.Nanjing Forestry Univ, Adv Anal & Testing Ctr, Nanjing 210037, Jiangsu, Peoples R China 6.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。