气候变化领域集成服务门户(CCPortal): A 2000-year record of phosphorus forms and accumulation in peatland of the Greater Khingan Mountains in Northeast China: Paleoenvironmental implications

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DOI	10.1016/j.quaint.2020.09.039
	A 2000-year record of phosphorus forms and accumulation in peatland of the Greater Khingan Mountains in Northeast China: Paleoenvironmental implications
	Li, Yunhui; Han, Dongxue; Gao, Chuanyu; Liu, Hanxiang; Cong, Jinxin; Yu, Xiaofei; Wang, Guoping
通讯作者	Wang, GP (通讯作者)
发表日期	2020
ISSN	1040-6182
EISSN	1873-4553
起始页码	27
结束页码	34
卷号	562
英文摘要	To investigate the connection of phosphorus (P) forms with peatland succession and history of fire in Tuqiang peatland, a 57 cm peat core was sampled with high-resolution (1-cm intervals) in the north of the Great Khingan mountain (Northeast China). AMS C-14 dating techniques combined with sequential chemical extraction was used to determine and calculate the accumulation rates of phosphorus fractions. Phosphorus forms were mainly composed with NaOH-P-o, hot concentrated HCl-P (conc. HCl-P) and residual-P. Active phosphorus pools were enriched in the top 8-10 cm of the peat surface. The concentrations of organic phosphorus forms and residual-P were generally high during 1200 to 500 cal yr BP, and the accumulation rate of that gradually decreased since 1600 cal yr BP. Both of concentration and accumulation of organic phosphorus decreased after 600 cal yr BP. The accumulation rate of organic phosphorus forms significantly corresponded with peat development frequency, pollen records and other paleo evidence. The concentration and accumulation of organic phosphorus, especially NaOH-P-o, was positively connected with concentration of pollen and Cyperaceae, and decreased when relative abundance of moss or shrubs occurred. Fire changed the vegetation community, decreased the concentration and accumulation of P-o, and reduced inactive P-o/P-i at the same time. Fire events could also leave geochemical ev-idence on peat. It is necessary to consider the both changes of inactive P-o/P-i and organic phosphorus accumulation rate when reflected the fire history by phosphorus in core.
关键词	SOIL-PHOSPHORUS CLIMATE-CHANGE INNER-MONGOLIA FIRE HISTORY VEGETATION HOLOCENE LAKE FRACTIONS FOREST DYNAMICS
英文关键词	Peatland; Phosphorus forms; Distribution; Accumulation; Succession; Fire
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000590284500003
来源期刊	QUATERNARY INTERNATIONAL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259851
推荐引用方式 GB/T 7714	Li, Yunhui,Han, Dongxue,Gao, Chuanyu,et al. A 2000-year record of phosphorus forms and accumulation in peatland of the Greater Khingan Mountains in Northeast China: Paleoenvironmental implications[J]. 中国科学院青藏高原研究所,2020,562.
APA	Li, Yunhui.,Han, Dongxue.,Gao, Chuanyu.,Liu, Hanxiang.,Cong, Jinxin.,...&Wang, Guoping.(2020).A 2000-year record of phosphorus forms and accumulation in peatland of the Greater Khingan Mountains in Northeast China: Paleoenvironmental implications.QUATERNARY INTERNATIONAL,562.
MLA	Li, Yunhui,et al."A 2000-year record of phosphorus forms and accumulation in peatland of the Greater Khingan Mountains in Northeast China: Paleoenvironmental implications".QUATERNARY INTERNATIONAL 562(2020).