Results 41 to 50 of about 111,128 (286)

Adjustment of Forest Ecosystem Root Respiration as Temperature Warms [PDF]

Journal of Integrative Plant Biology, 2008
AbstractAdjustment of ecosystem root respiration to warmer climatic conditions can alter the autotrophic portion of soil respiration and influence the amount of carbon available for biomass production. We examined 44 published values of annual forest root respiration and found an increase in ecosystem root respiration with increasing mean annual ...
Burton, Andrew J., Melillo, Jerry M., Frey, Serita D.   +2 more
openaire   +3 more sources

Upside-down fluxes Down Under: CO2 net sink in winter and net source in summer in a temperate evergreen broadleaf forest [PDF]

, 2018
Predicting the seasonal dynamics of ecosystem carbon fluxes is challenging in broadleaved evergreen forests because of their moderate climates and subtle changes in canopy phenology.
Barton, Craig V. M., Boer, Matthias M., Duursma, Remko A., Griebel, Anne, Isaac, Peter, Maier, Chelsea, Medlyn, Belinda E., Metzen, Daniel, Pendall, Elise, Renchon, Alexandre A., Resco de Dios, Víctor, Tissue, David T., Williams, Christopher A.   +12 more
core   +3 more sources

Estimating daytime ecosystem respiration from eddy-flux data

Biosystems, 2011
To understand what governs the patterns of net ecosystem exchange of CO₂, an understanding of factors influencing the component fluxes, ecosystem respiration and gross primary production is needed. In the present paper, we introduce an alternative method for estimating daytime ecosystem respiration based on whole ecosystem fluxes from a linear ...
Bruhn, Dan, Mikkelsen , Teis N, Herbst, Mathias, Kutsch , Werner L, Ball, Marilyn, Pilegaard, Kim   +5 more
openaire   +3 more sources

The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus

Geophysical Research Letters, 2018
Recent studies attributed the accelerating land carbon sink (SLAND) during the 2000s to respiration decrease induced by the warming hiatus. We used two long‐term atmospheric inversions, three temperature data sets, and eight ecosystem models to test this
Zaichun Zhu, Shilong Piao, Tao Yan, Philippe Ciais, Ana Bastos, Xuanze Zhang, Zhaoqi Wang   +6 more
doaj   +1 more source

CO2 exchange of the ecosystem–atmosphere in a mountain forest ecosystem: Combining stable carbon isotope (δ13C) and soil respiration measurements

Ecological Indicators, 2022
Stable carbon isotopes (δ13C) are a useful technique to partition the net ecosystem–atmosphere exchange (NEE) of carbon dioxide (CO2) into gross primary productivity (GPP) and respiratory (R) components.
Hanzhi Li, Dong Zhang, Jianhua Bai, Weiwei Lu, Xinxiao Yu, Guodong Jia   +5 more
doaj   +1 more source

High-severity wildfire leads to multi-decadal impacts on soil biogeochemistry in mixed-conifer forests. [PDF]

, 2020
During the past century, systematic wildfire suppression has decreased fire frequency and increased fire severity in the western United States of America.
Bell C. W., Dillon G. K., Fox J., Johnson D. W., Parker K. W., R Development Core Team, Restaino C. R., Sun H.   +7 more
core   +2 more sources

Water availability mediates elevational responses of ecosystem respiration to warming in Tibetan semi-arid montane meadows

Global Ecology and Conservation
Montane grasslands serve as large soil carbon reservoirs on the Tibetan Plateau, yet they are highly sensitive to climate warming. However, the extent to which climate warming modifies elevational variations of ecosystem respiration in these montane ...
Guangpeng Qu, Jingxue Zhao, Gao-Lin Wu
doaj   +1 more source

Effects of wastewater treatment plant pollution on in-stream ecosystems functions in an agricultural watershed [PDF]

, 2009
We studied the effect of point-source and non-point-source pollution on the retention capacity of the stream and its link with the metabolic state (primary production and respiration) and invertebrates assemblages in a third order Mediterranean stream ...
Boström, Broberg, Butturini, Chapin, Chapra, Crenshaw, Dent, Dorioz, Fisher, Frédéric Julien, Guasch, Haggard, Haggard, Hickey, House, Izagirre, José-Miguel Sánchez-Pérez, Lefebvre, Magali Gerino, Martí, Marzolf, Miserendino, Newbold, Odum, Owens, O’Connor, Pascal Dumas, Paul, Peter Winterton, Philippe Vervier, Prenda, Probst, Rathbun, Ruggiero, Sabine Sauvage, Stream Solute Workshop, Thyssen, Turlan, Turner, Valett, Vitousek, Wang, Young, Éric Maneux   +43 more
core   +4 more sources

Soil respiration in a mixed temperate forest and its contribution to total ecosystem respiration [PDF]

Tree Physiology, 2005
Soil respiration (SR) was measured with an infrared gas analyzer in nine plots representative of the heterogeneous vegetation in a mixed coniferous-deciduous forest in the Belgian Campine region. Selected plots included the two most representative overstory species (Pinus sylvestris L.
Curiel Yuste, J., Nagy, M., Janssens, Ivan, Carrara, A., Ceulemans, Reinhart   +4 more
openaire   +3 more sources

Global satellite-driven estimates of heterotrophic respiration [PDF]

Biogeosciences, 2019
While heterotrophic respiration (Rh) makes up about a quarter of gross global terrestrial carbon fluxes, it remains among the least-observed carbon fluxes, particularly outside the midlatitudes.
A. G. Konings, A. A. Bloom, J. Liu, N. C. Parazoo, D. S. Schimel, K. W. Bowman   +5 more
doaj   +1 more source