气候变化领域集成服务门户(CCPortal): The Sources and Atmospheric Pathway of Phosphorus to a High Alpine Forest in Eastern Tibetan Plateau, China

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DOI	10.1029/2019JD031327
	The Sources and Atmospheric Pathway of Phosphorus to a High Alpine Forest in Eastern Tibetan Plateau, China
	Meng Y.; Li R.; Fu H.; Bing H.; Huang K.; Wu Y.
发表日期	2020
ISSN	2169897X
卷号	125 期号:4
英文摘要	Atmospheric deposition is considered as an important source of phosphorus (P) to P-limited ecosystems. The PM2.5 samples were collected from a high alpine P-limited forest of Gongga Mountain (Mt. Gongga), eastern Tibetan Plateau from May 2015 to May 2016. Total P (TP) exhibited a higher concentration in the dry season (November to April, 96 ± 30 ng/m3) than that in the wet season (May to October, 77 ± 21 ng/m3). Source apportionment exhibited that 22% and 44% of TP in the dry season were contributed by soil dust and biomass burning, respectively. During the wet season, soil dust, biomass burning, and anthropogenic sources were estimated to contribute to 19%, 26%, and 41% of TP, respectively. Dissolved organic P (DOP) was found to be the significant fraction of total dissolved P (TDP), accounting for 65% and 53% of TDP in the dry and wet season, respectively. The significant correlations between DOP and KBB + suggested that the soluble P originating from biomass burning was possible mainly in the form of DOP. In addition, the acidification of apatite during the transport could explain the dissolved inorganic P level in the wet season. Supposing that all the soluble P was bioavailable, the atmospheric deposition of TDP was estimated to result in a fixation of 0.1394 kg C/m2/yr, accounting for 23% of net primary productivity in a forest of Mt. Gongga. The data showed herein highlighted the importance of atmospheric dry deposition of P to the long-term fertility of high-elevation soils. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	aerosol phosphorus (P); biomass burning; high alpine forest; P bioavailability; P-limited; Tibetan Plateau
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186161
作者单位	Shanghai Key Laboratory of Atmospheric Pollution and Prevention, Department of Environmental Science and Engineering, Institute of Atmospheric Science, Fudan University, Shanghai, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science and Technology, Nanjing, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; Alpine Ecosystem Observation and Experiment Station of Gongga Mountain, The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
推荐引用方式 GB/T 7714	Meng Y.,Li R.,Fu H.,et al. The Sources and Atmospheric Pathway of Phosphorus to a High Alpine Forest in Eastern Tibetan Plateau, China[J],2020,125(4).
APA	Meng Y.,Li R.,Fu H.,Bing H.,Huang K.,&Wu Y..(2020).The Sources and Atmospheric Pathway of Phosphorus to a High Alpine Forest in Eastern Tibetan Plateau, China.Journal of Geophysical Research: Atmospheres,125(4).
MLA	Meng Y.,et al."The Sources and Atmospheric Pathway of Phosphorus to a High Alpine Forest in Eastern Tibetan Plateau, China".Journal of Geophysical Research: Atmospheres 125.4(2020).