globalchange  > 气候变化与战略
DOI: 10.1007/s10980-019-00960-2
论文题名:
Substantial understory contribution to the C sink of a European temperate mountain forest landscape
作者: Dirnböck T.; Kraus D.; Grote R.; Klatt S.; Kobler J.; Schindlbacher A.; Seidl R.; Thom D.; Kiese R.
刊名: Landscape Ecology
ISSN: 9212973
出版年: 2020
卷: 35, 期:2
语种: 英语
英文关键词: Carbon sequestration ; Ecosystem modelling ; Forest disturbance ; Herb layer ; Mountain forest ; Net ecosystem production ; Tree regeneration
Scopus关键词: carbon cycle ; carbon sequestration ; carbon sink ; ecosystem modeling ; environmental disturbance ; herb ; landscape ecology ; montane forest ; net ecosystem production ; regeneration ; temperate environment ; understory ; Alps ; Scolytinae
英文摘要: Context: The contribution of forest understory to the temperate forest carbon sink is not well known, increasing the uncertainty in C cycling feedbacks on global climate as estimated by Earth System Models. Objectives: We aimed at quantifying the effect of woody and non-woody understory vegetation on net ecosystem production (NEP) for a forested area of 158 km2 in the European Alps. Methods: We simulated C dynamics for the period 2000–2014, characterized by above-average temperatures, windstorms and a subsequent bark beetle outbreak for the area, using the regional ecosystem model LandscapeDNDC. Results: In the entire study area, woody and non-woody understory vegetation caused between 16 and 37% higher regional NEP as compared to a bare soil scenario over the 15-year period. The mean annual contribution of the understory to NEP was in the same order of magnitude as the average annual European (EU-25) forest C sink. After wind and bark beetle disturbances, the understory effect was more pronounced, leading to an increase in NEP between 35 and 67% compared to simulations not taking into account these components. Conclusions: Our findings strongly support the importance of processes related to the understory in the context of the climate change mitigation potential of temperate forest ecosystems. The expected increases in stand replacing disturbances due to climate change call for a better representation of understory vegetation dynamics and its effect on the ecosystem C balance in regional assessments and Earth System Models. © 2020, The Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159892
Appears in Collections:气候变化与战略

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作者单位: Department for Ecosystem Research and Environmental Information Management, Environment Agency Austria, Spittelauer Lände 5, Vienna, 1090, Austria; Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Kreuzeckbahnstraße 19, Garmisch-Partenkirchen, 82467, Germany; Department of Forest Ecology, Federal Research and Training Centre for Forests, Natural Hazards and Landscape (BFW), Seckendorff-Gudent Weg 8, Vienna, 1131, Austria; Department of Forest- and Soil Sciences, Institute of Silviculture, University of Natural Resources and Life Sciences (BOKU) Vienna, Peter-Jordan Straße 82, Vienna, 1190, Austria; Rubenstein School of Environment and Natural Resources, University of Vermont, 81 Carrigan Drive, Burlington, VT 05405, United States; Ecosystem Dynamics and Forest Management Group, School of Life Sciences, Technical University of Munich, Hans-Carl-von-Carlowitz-Platz 2, Freising, 85354, Germany

Recommended Citation:
Dirnböck T.,Kraus D.,Grote R.,et al. Substantial understory contribution to the C sink of a European temperate mountain forest landscape[J]. Landscape Ecology,2020-01-01,35(2)
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