气候变化领域集成服务门户(CCPortal): Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively

CCPortal

DOI	10.3389/fenvs.2021.702713
	Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively
	Li, Shaoyu; Sun, Jian; Zhou, Tiancai; Zhao, Mengli; Cong, Nan; Zhang, Lin
通讯作者	Zhao, ML (通讯作者)
发表日期	2021
EISSN	2296-665X
卷号	9
英文摘要	Although dissolved organic nitrogen (DON) plays an important role in the dynamic processes of nitrogen mineralization, fixation, and leaching, the ecological driving forces of DON across the Tibetan Plateau remain largely unknown. Here, we measured climate, soil, plant indicators, and DON concentration on the Tibetan Plateau, and used change-point analysis to determine DON patterns. Then correlation analysis was applied to analyze the relationship between DON and each index. Finally, the structural equation modelling (SEM) is used to explain the overall effect between DON and environmental factors. Our results showed that two DON patterns were presented across the Tibetan Plateau, that is, low-DON (5.43 g/mg) and high-DON (16.36 g/mg) patterns. In the low-DON pattern, biologic factors such as microbial carbon, microbial nitrogen, and productivity were the main influencing factors of DON concentration. In the high-DON pattern, DON was strongly governed by hydrothermal synchronization and superior soil environment. This study can help us to have a more comprehensive understanding of the response mechanism of soil soluble nitrogen pool in alpine ecosystems under climate change.
关键词	AMINO-ACIDS TEMPERATURE SENSITIVITY EXTRACTION METHOD SOIL MATTER DYNAMICS CLIMATE BIOMASS FOREST CARBON
英文关键词	Tibetan Plateau; biologic and abiotic factors; soil; plant-microbe interaction; soil dissolved organic nitrogen
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000680737300001
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
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/260157
推荐引用方式 GB/T 7714	Li, Shaoyu,Sun, Jian,Zhou, Tiancai,et al. Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively[J]. 中国科学院青藏高原研究所,2021,9.
APA	Li, Shaoyu,Sun, Jian,Zhou, Tiancai,Zhao, Mengli,Cong, Nan,&Zhang, Lin.(2021).Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively.FRONTIERS IN ENVIRONMENTAL SCIENCE,9.
MLA	Li, Shaoyu,et al."Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2021).