Temporal dynamics of Pinus tabulaeformis litter decomposition under nitrogen addition on the Loess Plateau of China
文献类型：期刊论文
| 作者 | Jing, Hang1; Wang, Guoliang1,2 |
| 刊名 | FOREST ECOLOGY AND MANAGEMENT
 |
| 出版日期 | 2020-11-15 |
| 卷号 | 476页码:10 |
| 关键词 | Leaf litter Decomposition Nitrogen Nutrient release Mass loss Microbial community |
| ISSN号 | 0378-1127 |
| DOI | 10.1016/j.foreco.2020.118465 |
| 通讯作者 | Wang, Guoliang(glwang@nwsuaf.edu.cn) |
| 英文摘要 | Litter decomposition in the early stage is determined by the release of easily decomposable substances, and that in the later stage is controlled by the contents of macromolecule compounds and microorganisms according to the two-stage model. However, the specific mechanism on how nitrogen (N) deposition changes litter decomposition on the basis of this model remains unknown. This study investigated the effects of multilevel N addition (control, low, medium, and high N amounts corresponding to 0, 3, 6, and 9 g N m(-2) y(-1), respectively) on the litter decomposition and nutrient release of Pinus tabulaeformis and the microbial community in the later stage on the Loess Plateau of China. Results were as follows. (1) N addition significantly increased the decomposition rate of P. tabulaeformis litter (P < 0.05) with the maximum value observed in the medium N treatment. (2) The release rates of soluble sugar, lignin, carbon (C), and N were significantly promoted by N addition with the best promotion effect found for medium N. Cellulose release was significantly inhibited by N addition, and medium N had the greatest inhibitory effect. (3) N addition had an insignificant effect on microbial community in later-stage decomposition but had significant influence on the relative abundances of Ascomycota, Zygomycota, and Davidiellaceae fungi. (4) Decomposition was controlled by the release of N, soluble sugar, and lignin in the early stage, and C release and three dominant fungal populations played important roles in the late stage. We conclude that the variations in N deposition, litter nutrient release and microbial community are important factors of decomposition and C flux in a forest ecosystem. |
| WOS关键词 | SOIL MICROBIAL COMMUNITIES ; FOREST LITTER ; LEAF-LITTER ; DEPOSITION ; RELEASE ; FUNGAL ; LIGNIN ; IDENTIFICATION ; LIMITATION ; CARBON |
| 资助项目 | National Natural Science Foundation of China[41671513] ; National Key Research and Development Program of China[2017YFC0504601] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000581970600013 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156805]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Guoliang |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jing, Hang,Wang, Guoliang. Temporal dynamics of Pinus tabulaeformis litter decomposition under nitrogen addition on the Loess Plateau of China[J]. FOREST ECOLOGY AND MANAGEMENT,2020,476:10. |
| APA | Jing, Hang,&Wang, Guoliang.(2020).Temporal dynamics of Pinus tabulaeformis litter decomposition under nitrogen addition on the Loess Plateau of China.FOREST ECOLOGY AND MANAGEMENT,476,10. |
| MLA | Jing, Hang,et al."Temporal dynamics of Pinus tabulaeformis litter decomposition under nitrogen addition on the Loess Plateau of China".FOREST ECOLOGY AND MANAGEMENT 476(2020):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。