Nitrogen deposition drives the intricate changes of fine root traits
Increase in nitrogen (N) deposition will cause changes of root morphological and functional traits, thus deeply affecting ecosystem carbon (C) and N cycles. However, the influence of N deposition to root traits under different climatic conditions, and with different N deposition rate and durations w...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-06-01
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| Series: | Global Ecology and Conservation |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989423000781 |
| _version_ | 1797854560195182592 |
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| author | Wuchao Gao Dongming Chen Xingpeng Hu Xuemei Fang Qi Li Qian Huang Feida Sun Jiqiong Zhou Yanfu Bai Jian Zhang Zhou Li Junming Zhao Dagang Yuan Xinlei Cui Lin Liu |
| author_facet | Wuchao Gao Dongming Chen Xingpeng Hu Xuemei Fang Qi Li Qian Huang Feida Sun Jiqiong Zhou Yanfu Bai Jian Zhang Zhou Li Junming Zhao Dagang Yuan Xinlei Cui Lin Liu |
| author_sort | Wuchao Gao |
| collection | DOAJ |
| description | Increase in nitrogen (N) deposition will cause changes of root morphological and functional traits, thus deeply affecting ecosystem carbon (C) and N cycles. However, the influence of N deposition to root traits under different climatic conditions, and with different N deposition rate and durations were still unclear. Here, a meta-analysis was conducted to evaluate the effects of simulated increase in N deposition on 11 root traits under different conditions. In general, N addition significantly increased root/shoot ratio, fine root diameter, total root biomass, fine root production, fine root turnover rate, root respiration, fine root N concentration, while decreased fine root C/N at the global scale. Under N addition, the increased extents of fine root biomass and total root biomass were significantly greater in grassland ecosystems, while the increased extent of fine root turnover was greater in forests. N addition significantly increased fine root production in snow climate zone where forests with ectomycorrhizae. A pattern may be inferred that with increases in mean annual temperature (MAT) and mean annual precipitation (MAP), N addition decreased fine root N concentration and fine root C/N, while increased fine root turnover at the high-MAT and high-MAP areas. In addition, it may be ascertained that fine roots became shorter in the low-rate and short-term N addition experiments, while roots became longer in the high-rate and long-term N addition experiments. Our study indicates that increase in N deposition will cause intricate changes of root traits due to the diversity of climatic conditions and the uncertainty of increase rate and duration of N deposition in future. |
| first_indexed | 2024-04-09T20:08:01Z |
| format | Article |
| id | doaj.art-d1deb02686dc401c923c9a5cfc3942ca |
| institution | Directory Open Access Journal |
| issn | 2351-9894 |
| language | English |
| last_indexed | 2024-04-09T20:08:01Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj.art-d1deb02686dc401c923c9a5cfc3942ca2023-04-01T08:50:11ZengElsevierGlobal Ecology and Conservation2351-98942023-06-0143e02443Nitrogen deposition drives the intricate changes of fine root traitsWuchao Gao0Dongming Chen1Xingpeng Hu2Xuemei Fang3Qi Li4Qian Huang5Feida Sun6Jiqiong Zhou7Yanfu Bai8Jian Zhang9Zhou Li10Junming Zhao11Dagang Yuan12Xinlei Cui13Lin Liu14College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR China; Sichuan Grassland General Works Station, Chengdu 610081, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaSichuan Grassland General Works Station, Chengdu 610081, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, PR ChinaCollege of Forestry, Sichuan Agricultural University, Chengdu 611130, PR ChinaCollege of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, PR China; Correspondence to: College of Grassland Science and Technology, Sichuan Agricultural University, No. 211 Huimin Road, Chengdu 611130, Sichuan, PR China.Increase in nitrogen (N) deposition will cause changes of root morphological and functional traits, thus deeply affecting ecosystem carbon (C) and N cycles. However, the influence of N deposition to root traits under different climatic conditions, and with different N deposition rate and durations were still unclear. Here, a meta-analysis was conducted to evaluate the effects of simulated increase in N deposition on 11 root traits under different conditions. In general, N addition significantly increased root/shoot ratio, fine root diameter, total root biomass, fine root production, fine root turnover rate, root respiration, fine root N concentration, while decreased fine root C/N at the global scale. Under N addition, the increased extents of fine root biomass and total root biomass were significantly greater in grassland ecosystems, while the increased extent of fine root turnover was greater in forests. N addition significantly increased fine root production in snow climate zone where forests with ectomycorrhizae. A pattern may be inferred that with increases in mean annual temperature (MAT) and mean annual precipitation (MAP), N addition decreased fine root N concentration and fine root C/N, while increased fine root turnover at the high-MAT and high-MAP areas. In addition, it may be ascertained that fine roots became shorter in the low-rate and short-term N addition experiments, while roots became longer in the high-rate and long-term N addition experiments. Our study indicates that increase in N deposition will cause intricate changes of root traits due to the diversity of climatic conditions and the uncertainty of increase rate and duration of N deposition in future.http://www.sciencedirect.com/science/article/pii/S2351989423000781Nitrogen depositionN addition rateExperiment durationClimate factorFine root traitFine root turnover rate |
| spellingShingle | Wuchao Gao Dongming Chen Xingpeng Hu Xuemei Fang Qi Li Qian Huang Feida Sun Jiqiong Zhou Yanfu Bai Jian Zhang Zhou Li Junming Zhao Dagang Yuan Xinlei Cui Lin Liu Nitrogen deposition drives the intricate changes of fine root traits Global Ecology and Conservation Nitrogen deposition N addition rate Experiment duration Climate factor Fine root trait Fine root turnover rate |
| title | Nitrogen deposition drives the intricate changes of fine root traits |
| title_full | Nitrogen deposition drives the intricate changes of fine root traits |
| title_fullStr | Nitrogen deposition drives the intricate changes of fine root traits |
| title_full_unstemmed | Nitrogen deposition drives the intricate changes of fine root traits |
| title_short | Nitrogen deposition drives the intricate changes of fine root traits |
| title_sort | nitrogen deposition drives the intricate changes of fine root traits |
| topic | Nitrogen deposition N addition rate Experiment duration Climate factor Fine root trait Fine root turnover rate |
| url | http://www.sciencedirect.com/science/article/pii/S2351989423000781 |
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