Growth responses of trees and understory plants to nitrogen fertilization in a subtropical forest in China
文献类型：期刊论文
| 作者 | Tian, Di4; Li, Peng4; Fang, Wenjing4; Xu, Jun3; Luo, Yongkai1; Yan, Zhengbing4; Zhu, Biao4; Wang, Jingjing3; Xu, Xiaoniu3; Fang, Jingyun4
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| 刊名 | BIOGEOSCIENCES
 |
| 出版日期 | 2017 |
| 卷号 | 14期号:14页码:3461-3469 |
| ISSN号 | 1726-4170 |
| DOI | 10.1371/journal.pone.0171967 |
| 文献子类 | Article |
| 英文摘要 | Reactive nitrogen (N) increase in the biosphere has been a noteworthy aspect of global change, producing considerable ecological effects on the functioning and dynamics of the terrestrial ecosystems. A number of observational studies have explored responses of plants to experimentally simulated N enrichment in boreal and temperate forests. Here we investigate how the dominant trees and different understory plants respond to experimental N enrichment in a subtropical forest in China. We conducted a 3.4-year N fertilization experiment in an old-aged subtropical evergreen broad-leaved forest in eastern China with three treatment levels applied to nine 20m x 20m plots and replicated in three blocks. We divided the plants into trees, saplings, shrubs (including tree seedlings), and ground-cover plants (ferns) according to the growth forms, and then measured the absolute and relative basal area increments of trees and saplings and the aboveground biomass of understory shrubs and ferns. We further grouped individuals of the dominant tree species, Castanopsis eyrei, into three size classes to investigate their respective growth responses to the N fertilization. Our results showed that the plot-averaged absolute and relative growth rates of basal area and aboveground biomass of trees were not affected by N fertilization. Across the individuals of C. eyrei, the small trees with a DBH (diameter at breast height) of 5-10 cm declined by 66.4 and 59.5 %, respectively, in N50 (50 kg N ha(-1) yr(-1)) and N100 fertilized plots (100 kg N ha(-1) yr(-1)), while the growth of median and large trees with a DBH of > 10 cm did not significantly change with the N fertilization. The growth rate of small trees, saplings, and the aboveground biomass of understory shrubs and ground-cover ferns decreased significantly in the N-fertilized plots. Our findings suggested that N might not be a limiting nutrient in this mature subtropical forest, and that the limitation of other nutrients in the forest ecosystem might be aggravated by the enhanced N availability, potentially resulting in an adverse effect on the development of natural subtropical forest. |
| 学科主题 | Science & Technology - Other Topics |
| 出版地 | GOTTINGEN |
| 电子版国际标准刊号 | 1726-4189 |
| WOS关键词 | LOWLAND TROPICAL FOREST ; NET PRIMARY PRODUCTIVITY ; CARBON STORAGE ; NUTRIENT LIMITATION ; SOIL ACIDIFICATION ; DEPOSITION ; ECOSYSTEMS ; ADDITIONS ; PHOSPHORUS ; SATURATION |
| 语种 | 英语 |
| WOS记录号 | WOS:000394231800139 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31321061, 31330012] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22132]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Anhui Agr Univ, Dept Forestry, Hefei 230036, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China 4.Peking Univ, Minist Educ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Di,Li, Peng,Fang, Wenjing,et al. Growth responses of trees and understory plants to nitrogen fertilization in a subtropical forest in China[J]. BIOGEOSCIENCES,2017,14(14):3461-3469. |
| APA | Tian, Di.,Li, Peng.,Fang, Wenjing.,Xu, Jun.,Luo, Yongkai.,...&Fang, Jingyun.(2017).Growth responses of trees and understory plants to nitrogen fertilization in a subtropical forest in China.BIOGEOSCIENCES,14(14),3461-3469. |
| MLA | Tian, Di,et al."Growth responses of trees and understory plants to nitrogen fertilization in a subtropical forest in China".BIOGEOSCIENCES 14.14(2017):3461-3469. |
入库方式： OAI收割
来源：植物研究所
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