Results 121 to 130 of about 40,295 (219)

Temperature dependence of daily respiration and reaeration rates during baseflow conditions in a northeastern U.S. stream

Journal of Hydrology: Regional Studies, 2018
Study region: Finger Lakes Region, New York, USA. Study focus: The relationship between stream temperature and daily respiration and reaeration rates was investigated from May 2015 – May 2016 for two sites, one in the headwaters and the other near the ...
Nicole B. Hill, Susan J. Riha, M. Todd Walter   +2 more
doaj   +1 more source

Versatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle

Nature Communications
Abstract Heterotrophic denitrifiers play crucial roles in global carbon and nitrogen cycling. However, their inability to oxidize sulfide renders them vulnerable to this toxic molecule, which inhibits the key enzymatic reaction responsible for reducing nitrous oxide (N2O), thereby raising greenhouse gas emissions.
Bo Shao, Yuan-Guo Xie, Long Zhang, Yang Ruan, Bin Liang, Ruochen Zhang, Xijun Xu, Wei Wang, Zhengda Lin, Xuanyuan Pei, Xueting Wang, Lei Zhao, Xu Zhou, Xiaohui Wu, Defeng Xing, Aijie Wang, Duu-Jong Lee, Nanqi Ren, Donald E. Canfield, Brian P. Hedlund, Zheng-Shuang Hua, Chuan Chen   +21 more
openaire   +3 more sources

Orbital Variability in Grazing Proportion: New Insights From Sedimentary Amino Acid δ15N Records of the Western Equatorial Pacific

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract The carbon sequestration capacity of the biological carbon pump (BCP) is determined by surface ocean carbon fixation and the transportation of fixed carbon to the ocean interior, which is closely linked to the trophic structure of planktonic ecosystem.
Chen Li, Haowen Dang, Jinlong Du, Hongliang Li, Jingjing Zhang, Zhimin Jian   +5 more
wiley   +1 more source

Empirical estimates of regional carbon budgets imply reduced global soil heterotrophic respiration. [PDF]

Natl Sci Rev, 2021
Ciais P, Yao Y, Gasser T, Baccini A, Wang Y, Lauerwald R, Peng S, Bastos A, Li W, Raymond PA, Canadell JG, Peters GP, Andres RJ, Chang J, Yue C, Dolman AJ, Haverd V, Hartmann J, Laruelle G, Konings AG, King AW, Liu Y, Luyssaert S, Maignan F, Patra PK, Peregon A, Regnier P, Pongratz J, Poulter B, Shvidenko A, Valentini R, Wang R, Broquet G, Yin Y, Zscheischler J, Guenet B, Goll DS, Ballantyne AP, Yang H, Qiu C, Zhu D.   +40 more
europepmc   +1 more source

Hydrological controls on heterotrophic soil respiration across an agricultural landscape

Geoderma, 2011
Abstract Climate change is expected to increase the intensity of precipitation, but our ability to model the consequences for soil respiration are limited by a lack of data from soils that are saturated and draining. In this study, we used large intact soil columns (28 × 30 cm) to 1) quantify changes in CO 2 flux as soils drain from saturated ...
Castellano, Michael, Schmidt, John, Kaye, Jason, Walker, Charles, Graham, Chris, Lin, Henry, Dell, Curtis   +6 more
openaire   +3 more sources

Forest Reorganization Sustains Carbon Sequestration Under Climate Change

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract Forests currently mitigate anthropogenic climate change by sequestering substantial amounts of carbon, but future carbon dynamics are expected to vary across the temperate forest biome. Previously cold‐limited ecosystems with low disturbance activity could increase their carbon uptake, while water‐limited ecosystems with high disturbance ...
Christina Dollinger, Monica G. Turner, Werner Rammer, Timon T. Keller, Akira S. Mori, Kureha F. Suzuki, Rupert Seidl   +6 more
wiley   +1 more source

Estimating heterotrophic respiration at large scales: challenges, approaches, and next steps

Ecosphere, 2016
Heterotrophic respiration (HR), the aerobic and anaerobic processes mineralizing organic matter, is a key carbon flux but one impossible to measure at scales significantly larger than small experimental plots.
Ben Bond‐Lamberty, Daniel Epron, Jennifer Harden, Mark E. Harmon, Forrest Hoffman, Jitendra Kumar, Anthony David McGuire, Rodrigo Vargas   +7 more
doaj   +1 more source

Revealing Seasonal Patterns and Metabolism of Microbial Plankton in a Productive Coastal Upwelling System

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract Increasing our knowledge about the structure and metabolism of the microbial plankton community in coastal upwelling systems is essential for efficiently managing the resources of these highly productive ecosystems. Here we explore seasonal variations of this community in the NW Iberian coastal upwelling system by measuring variables informing
María López‐Haslett, María Froján, Belén Arbones, Isabel G. Teixeira, Mariña Amo‐Seco, Carmen G. Castro, Francisco G. Figueiras   +6 more
wiley   +1 more source

Improving Prediction of Heterotrophic Respiration in Response to Altered Precipitation

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 2, February 2026.
Abstract Soil heterotrophic respiration (Rh) is a key process in the global carbon (C) cycle, strongly influenced by interactions between soil temperature and moisture. It is well documented how soil temperature regulates Rh. However, temperature interacts with soil moisture to regulate Rh via dynamic and complex microbial mechanisms, leading to ...
Awais Shakoor, Pankaj Tiwari, Nick Wright‐Osment, Nor Azizah Kusai, Debjani Sihi, Eric A. Davidson, Sally A. Power, Catriona A. Macdonald, Elise Pendall   +8 more
wiley   +1 more source

Wildfire Effects on the Soil Respiration and Bacterial Microbiota Composition in Mediterranean-Type Ecosystems

Fire
This work provides insights into the effect of fire on soil processes in Mediterranean-type ecosystems in Cyprus. Soil samples from mountainous sites that were subjected to a summer wildfire and adjacent control samples were collected.
Panagiotis Dalias, Eleftherios Hadjisterkotis, Michalis Omirou, Ourania Michaelidou, Ioannis M. Ioannides, Damianos Neocleous, Anastasis Christou   +6 more
doaj   +1 more source