Effects of human disturbance activities and environmental change factors on terrestrial nitrogen fixation
文献类型：期刊论文
| 作者 | Zheng, Mianhai6,7,8; Zhou, Zhenghu1; Zhao, Ping6,7,8; Luo, Yiqi9; Ye, Qing6,7,8; Zhang, Kerong4,5; Song, Liang2,3; Mo, Jiangming6,7,8 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2020-09-18 |
| 页码 | 15 |
| 关键词 | biological nitrogen fixation environmental change global change human disturbance nitrogen cycling terrestrial ecosystems |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.15328 |
| 英文摘要 | Biological nitrogen (N) fixation plays an important role in terrestrial N cycling and represents a key driver of terrestrial net primary productivity (NPP). Despite the importance of N fixation in terrestrial ecosystems, our knowledge regarding the controls on terrestrial N fixation remains poor. Here, we conducted a meta-analysis (based on 852 observations from 158 studies) of N fixation across three types of ecosystems with different status of disturbance (no management, restoration [previously disturbed], and disturbance [currently disturbed]) and in response to multiple environmental change factors (warming, elevated carbon dioxide [CO2], increased precipitation, increased drought, increased N deposition, and their combinations). We explored the mechanisms underlying the changes in N fixation by examining the variations in soil physicochemical properties (bulk density, texture, moisture, and pH), plant and microbial characteristics (dominant plant species numbers, plant coverage, and soil microbial biomass), and soil resources (total carbon, total N, total phosphorus (P), inorganic N, and inorganic P). Human disturbance inhibited non-symbiotic N fixation but not symbiotic N fixation. Terrestrial N fixation was stimulated by warming (+152.7%), elevated CO2(+19.6%), and increased precipitation (+73.1%) but inhibited by increased drought (-30.4%), N deposition (-31.0%), and combinations of available multiple environmental change factors (-14.5%), the extents of which varied among biomes and ecosystem compartments. Human disturbance reduced the N fixation responses to environmental change factors, which was associated with the changes in soil physicochemical properties (2%-56%,p < .001) and the declines in plant and microbial characteristics (3%-49%,p <= .003) and soil resources (6%-48%,p <= .03). Overall, our findings reveal for the first time the effects of multiple environmental change factors on terrestrial N fixation and indicate the role of human disturbance activities in inhibiting N fixation, which can improve our understanding, modeling, and prediction of terrestrial N budgets, NPP, and ecosystem feedbacks under global change scenarios. |
| 资助项目 | National Natural Science Foundation of China[41630752] ; National Natural Science Foundation of China[31770523] ; National Natural Science Foundation of China[41731176] ; National Natural Science Foundation of China[31901164] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515011821] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000570179500001 |
| 出版者 | WILEY |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/15698]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Mo, Jiangming |
| 作者单位 | 1.Northeast Forestry Univ, Ctr Ecol Res, Harbin, Peoples R China 2.Chinese Acad Sci, Core Bot Gardens, Ctr Plant Ecol, Xishuangbanna, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla, Peoples R China 4.Chinese Acad Sci, Ctr Plant Ecol Core Bot Gardens, Wuhan, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan, Peoples R China 6.Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Peoples R China 7.Chinese Acad Sci, Ctr Plant Ecol Core Bot Gardens, Guangzhou, Peoples R China 8.Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Guangzhou, Peoples R China 9.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA |
| 推荐引用方式 GB/T 7714 | Zheng, Mianhai,Zhou, Zhenghu,Zhao, Ping,et al. Effects of human disturbance activities and environmental change factors on terrestrial nitrogen fixation[J]. GLOBAL CHANGE BIOLOGY,2020:15. |
| APA | Zheng, Mianhai.,Zhou, Zhenghu.,Zhao, Ping.,Luo, Yiqi.,Ye, Qing.,...&Mo, Jiangming.(2020).Effects of human disturbance activities and environmental change factors on terrestrial nitrogen fixation.GLOBAL CHANGE BIOLOGY,15. |
| MLA | Zheng, Mianhai,et al."Effects of human disturbance activities and environmental change factors on terrestrial nitrogen fixation".GLOBAL CHANGE BIOLOGY (2020):15. |
入库方式： OAI收割
来源：武汉植物园
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