globalchange  > 气候变化与战略
DOI: 10.1016/j.apsoil.2019.103379
论文题名:
Tree influence exacerbates the El Niño effects over soil CO2 emissions and its microclimatic controls
作者: Salazar Zarzosa P.; Palacios Mc Cubbin E.; Curiel Yuste J.; Muenchow J.; Cruz G.; Rodriguez R.
刊名: Applied Soil Ecology
ISSN: 9291393
出版年: 2020
卷: 147
语种: 英语
英文关键词: Canopy cover ; Drought ; EN ; Fertility island ; Peru ; Temperature
英文摘要: Dryland ecosystems are considered the largest global carbon sink. However, extreme climate phenomena like the El Niño events (EN) may change soil respiration (Rs) – the CO2 emitted from soils resulting from biological activity and the largest outgoing flux of carbon from terrestrial ecosystems. Our aim was to study the effect of the EN on Rs in the North Peruvian dryland forest, and its interaction with soil temperature and the tree canopy. Our results indicate that Rs during the EN years increased by a factor of 100 compared to normal years, but this effect was exacerbated by the proximity to trees. Only under trees and during the EN event temperature exerted a positive control over daily Rs fluctuations. Our results, indicate how in these dryland forests the expected increase in the EN frequency and intensity could affect soil CO2 emissions, and hence ecosystem carbon budgets, but that this effect would very much depend on tree density and tree spatial distribution. © 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/159096
Appears in Collections:气候变化与战略

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作者单位: Facultad de ingenieria, Universidad de Piura, Av. Ramón Mujica 131, Piura, Peru; BC3 – Basque Centre for Climate Change, Scientific Campus of the University of the Basque Country, Leioa, 48940, Spain; IKERBASQUE – Basque Foundation for Science, Maria Diaz de Haro 3, 6 solairua, Bilbao, Bizkaia 48013, Spain; Institute of Geography, Friedrich-Schiller University Jena, Löbdergraben 32, Jena, 07743, Germany

Recommended Citation:
Salazar Zarzosa P.,Palacios Mc Cubbin E.,Curiel Yuste J.,et al. Tree influence exacerbates the El Niño effects over soil CO2 emissions and its microclimatic controls[J]. Applied Soil Ecology,2020-01-01,147
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