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Biologic and Abiotic Factors Regulate Dissolved Organic Nitrogen With Low and High Nutrient Concentrations on Tibetan Plateau, Respectively

文献类型：期刊论文

作者Li, Shaoyu1,2; Sun, Jian1,3; Zhou, Tiancai3; Zhao, Mengli2; Cong, Nan3; Zhang, Lin1
刊名FRONTIERS IN ENVIRONMENTAL SCIENCE
出版日期2021-07-20
卷号9页码:10
关键词Tibetan Plateau biologic and abiotic factors soil plant-microbe interaction soil dissolved organic nitrogen
DOI10.3389/fenvs.2021.702713
通讯作者Sun, Jian(sunjian@itpcas.ac.cn) ; Zhao, Mengli(nmgmlzh@126.com)
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.
WOS关键词AMINO-ACIDS ; TEMPERATURE SENSITIVITY ; EXTRACTION METHOD ; SOIL ; MATTER ; DYNAMICS ; CLIMATE ; BIOMASS ; FOREST ; CARBON
资助项目Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0405] ; Joint Research Project of Three-River-Resource National Park - Chinese Academy of Sciences[LHZX-2020-08] ; National Science Foundation of China[41871040] ; National Science Foundation of China[31901198] ; Joint Research Project of Three-River-Resource National Park - Qinghai Provincial People's Government[LHZX-2020-08]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000680737300001
出版者FRONTIERS MEDIA SA
资助机构Second Tibetan Plateau Scientific Expedition and Research ; Joint Research Project of Three-River-Resource National Park - Chinese Academy of Sciences ; National Science Foundation of China ; Joint Research Project of Three-River-Resource National Park - Qinghai Provincial People's Government
源URL[http://ir.igsnrr.ac.cn/handle/311030/164829]  
专题中国科学院地理科学与资源研究所
通讯作者Sun, Jian; Zhao, Mengli
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Sci, Beijing, Peoples R China
2.Inner Mongolia Agr Univ, Coll Grassland,Inner Mongolia Key Lab Grassland M, Key Lab Grassland Resources,Minist Agr & Rural Af, Minist Educ,Key Lab Forage Cultivat Proc & High E, Hohhot, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing, Peoples R China
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]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2021,9:10.
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,9,10.
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):10.

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来源：地理科学与资源研究所

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