气候变化领域集成服务门户(CCPortal): Drivers of Soil Total Nitrogen and Phosphorus Storage in Alpine Wetland Across the Three Rivers Source Region on the Qinghai-Tibetan Plateau

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DOI	10.3389/fenvs.2022.806771
	Drivers of Soil Total Nitrogen and Phosphorus Storage in Alpine Wetland Across the Three Rivers Source Region on the Qinghai-Tibetan Plateau
	Nie, Xiuqing; Wang, Dong; Zhou, Guoying; Xiong, Feng; Ren, Lining; Chen, Yongzhe; Ma, Kali; Zhong, Zebing; Du, Yangong
通讯作者	Wang, D (通讯作者)，Chinese Acad Forestry, Inst Forest Ecol Environm & Nat Conservat, Key Lab Forest Ecol & Environm Natl Forestry & Gr, Beijing, Peoples R China. ; Wang, D (通讯作者)，Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry A, Beijing, Peoples R China. ; Zhou, GY (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Xining, Peoples R China.
发表日期	2022
EISSN	2296-665X
卷号	10
英文摘要	Although soil total nitrogen (STN) and soil total phosphorus (STP) play significant roles in terrestrial ecosystem function, their storage and driving factors in the alpine wetlands of the Qinghai-Tibetan Plateau remain unclear. In this study, we estimated STN and STP storage and their controlling factors, including vegetation, soil, and climate characteristics, using data collected from 50 sites across the wetlands in the Three Rivers Source Region. STN and STP storage in the top 30 cm of soil were 62.12 +/- 37.55 Tg N and 9.24 +/- 2.90 Tg P, respectively. Although STN density did not differ significantly for different vegetation types (i.e., alpine meadow and alpine wetland), belowground biomass showed a positive relationship with STN density. Mean annual precipitation (MAP) showed a significant positive relationship with STN density, whereas the effects of mean annual temperature on STN density were minor. Compared with the effects of vegetation and climatic factors, soil characteristics were found to not only exert a significant effect on STN density, but also influence the effects of climate and vegetation on STN density. For STP density, soil characteristics were found to be a significant controlling factor, whereas the effects of biomass and climatic factors were minor. The studied climate, soil, and vegetation characteristics jointly explained similar to 54% of STN variance, whereas soil characteristics explained only 20% of STP variation. MAP indirectly affected STN density via effects on vegetation and soil, and its direct effect on STN density was minor. This indicated a strong relationship between biotic and abiotic effects and STN density. Identification of the factors influencing STN and STP variance in alpine wetlands contributes to our understanding of the biogeochemical cycle in high-altitude regions.
关键词	ORGANIC-CARBON CONTENT NUTRIENT LIMITATION ABOVEGROUND BIOMASS PHYSICAL-PROPERTIES P STOICHIOMETRY CO-LIMITATION PATTERNS FORESTS CLIMATE PLANT
英文关键词	alpine wetlands; Tibetan plateau; soil total nitrogen; soil total phosphorus; controlling factors
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000778364800001
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254872
作者单位	[Nie, Xiuqing; Wang, Dong; Chen, Yongzhe] Chinese Acad Forestry, Inst Forest Ecol Environm & Nat Conservat, Key Lab Forest Ecol & Environm Natl Forestry & Gr, Beijing, Peoples R China; [Nie, Xiuqing; Wang, Dong; Ren, Lining; Chen, Yongzhe] Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry A, Beijing, Peoples R China; [Zhou, Guoying; Xiong, Feng; Du, Yangong] Chinese Acad Sci, Northwest Inst Plateau Biol, Xining, Peoples R China; [Ma, Kali] Monitoring & Evaluat Ctr Qinghai Natl Pk, Xining, Peoples R China; [Zhong, Zebing] Forest Inventory & Planning Inst Tibet Autonomous, Lhasa, Peoples R China
推荐引用方式 GB/T 7714	Nie, Xiuqing,Wang, Dong,Zhou, Guoying,et al. Drivers of Soil Total Nitrogen and Phosphorus Storage in Alpine Wetland Across the Three Rivers Source Region on the Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2022,10.
APA	Nie, Xiuqing.,Wang, Dong.,Zhou, Guoying.,Xiong, Feng.,Ren, Lining.,...&Du, Yangong.(2022).Drivers of Soil Total Nitrogen and Phosphorus Storage in Alpine Wetland Across the Three Rivers Source Region on the Qinghai-Tibetan Plateau.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Nie, Xiuqing,et al."Drivers of Soil Total Nitrogen and Phosphorus Storage in Alpine Wetland Across the Three Rivers Source Region on the Qinghai-Tibetan Plateau".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).