globalchange  > 气候变化与战略
DOI: 10.1016/j.catena.2019.104338
论文题名:
Dynamics of soil water extractable organic carbon and inorganic nitrogen and their environmental controls in mountain forest and meadow ecosystems in China
作者: Zhang J.; Peng C.; Xue W.; Yang B.; Yang Z.; Niu S.; Zhu Q.; Wang M.
刊名: Catena
ISSN: 3418162
出版年: 2020
卷: 187
语种: 英语
英文关键词: Dissolved inorganic nitrogen ; Forest and meadow ; Mountain ecosystem ; Warming ; Water extractable organic carbon
Scopus关键词: dissolved inorganic nitrogen ; global warming ; grassland ; inorganic nitrogen ; meadow ; montane forest ; organic carbon ; soil organic matter ; soil water
英文摘要: We investigated the differences among two types of forest (pine and oak forests) and a meadow in soil water extractable organic carbon (WEOC), ammonium (NH4 +) and nitrate (NO3 −) concentrations in the Qinling Mountains, China. Our results showed that soil WEOC, NH4 + and NO3 − concentrations were higher in the meadow than in the forests, and they were higher in the pine forest than in the oak forest. The soil surface temperature and soil water content were positively correlated with WEOC and inorganic nitrogen concentrations (P < 0.01). In addition, there was a significantly negative correlation between soil WEOC concentration and pH (P < 0.01). Moreover, soil WEOC concentration was positively correlated with the inorganic nitrogen concentration (P < 0.01). Generally, soil WEOC concentration decreased in the forests, and increased in the meadow under warming condition. The effects of warming on soil WEOC and dissolved inorganic nitrogen (DIN) concentrations varied with time. We elucidated that warming had a significant influence on soil WEOC concentration in the pine forest, whereas soil DIN concentration was affected significantly by warming only in the meadow. Our findings indicate that soil WEOC and DIN show different responses to warming in the mountain forest and meadow ecosystems. This study could provide useful insights for the prediction of soil carbon and nitrogen cycling and their responses to climate change in the complex mountain ecosystem. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158597
Appears in Collections:气候变化与战略

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作者单位: Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, 712100, China; Institute of Environment Sciences, Department of Biology Sciences, University of Quebec at Montreal, Case Postale 8888, Succursale Centre-Ville, Montreal, Quebec H3C 3P8, Canada; College of Life Science, China West Normal University, No. 1 Shi Da Road, Nanchong, Sichuan 637000, China; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, Jilin 130024, China; Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, Jilin 130024, China; Jilin Provincial Key Laboratory for Wetland Ecological Processes and Environmental Change in the Changbai Mountains, Changchun, Jilin 130024, China

Recommended Citation:
Zhang J.,Peng C.,Xue W.,et al. Dynamics of soil water extractable organic carbon and inorganic nitrogen and their environmental controls in mountain forest and meadow ecosystems in China[J]. Catena,2020-01-01,187
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