The retention dynamics of early-spring N input in a temperate forest ecosystem: Implications for winter N deposition
文献类型：期刊论文
| 作者 | Ma, Linna1; Zhang, Chaoxue1; Lv, Yixia1; Wang, Renzhong1 |
| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2022 |
| 卷号 | 33 |
| 关键词 | Forest N-15 N deposition N dynamic Snowmelt Winter |
| DOI | 10.1016/j.gecco.2021.e01966 |
| 文献子类 | Article |
| 英文摘要 | In N-limited temperate regions of China, rates of atmospheric N deposition remain high during winter due to industrial development and energy consumption. Winter-deposited N accumulates and is then released after snowmelt. However, little is known about the retention dynamics of early-spring N input in temperate forest ecosystems. We applied 15N isotopic tracer after snowmelt, and then quantified 15N dynamics in litter, soils, microbes and vascular plants over the following growing season in a warm temperate forest of northern China. In early spring (7 days after 15N addition), approximately 80% of applied 15N was retained in the ecosystem. The 15N recovery was the highest in litter, followed by soils and microbes, with only trivial acquisition in vascular plants. After early spring, there was little change in total 15N recovery over the following season, which indicated that the temperate forest ecosystem had high potential for the retention of early-spring N input. The 15N levels gradually declined in litter and microbes, while they were gradually increased in the vascular plants. In late fall, substantial 15N tracer retained in litter and was resorbed from senescing tissues to roots. Evergreen coniferous trees presented higher 15N acquisition than deciduous broad-leaved trees. Our results suggest that substantial early-spring N input can be retained in warm temperate forest ecosystems. The findings highlight the importance of litter and plants in sustaining early-spring exogenous N resources, inferring the need to considering winter N deposition for a better understanding of N cycling in temperate ecosystems. |
| 学科主题 | Biodiversity Conservation ; Ecology |
| 电子版国际标准刊号 | 2351-9894 |
| 出版地 | AMSTERDAM |
| WOS关键词 | SOIL MICROBIAL BIOMASS ; NITROGEN DEPOSITION ; N-15 ; COMPETITION ; CARBON ; PLANTS ; MICROORGANISMS ; (NO3-)-N-15 ; ACQUISITION ; TUNDRA |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000734887900009 |
| 资助机构 | National Natural Science Foundation of China [32071602] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/29052]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Linna,Zhang, Chaoxue,Lv, Yixia,et al. The retention dynamics of early-spring N input in a temperate forest ecosystem: Implications for winter N deposition[J]. GLOBAL ECOLOGY AND CONSERVATION,2022,33. |
| APA | Ma, Linna,Zhang, Chaoxue,Lv, Yixia,&Wang, Renzhong.(2022).The retention dynamics of early-spring N input in a temperate forest ecosystem: Implications for winter N deposition.GLOBAL ECOLOGY AND CONSERVATION,33. |
| MLA | Ma, Linna,et al."The retention dynamics of early-spring N input in a temperate forest ecosystem: Implications for winter N deposition".GLOBAL ECOLOGY AND CONSERVATION 33(2022). |
入库方式： OAI收割
来源：植物研究所
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