Results 101 to 110 of about 14,065 (269)

The design of a Space-borne multispectral canopy LiDAR to estimate global carbon stock and gross primary productivity [PDF]

, 2011
Understanding the dynamics of the global carbon cycle is one of the most challenging issues for the scientific community. The ability to measure the magnitude of terrestrial carbon sinks as well as monitoring the short and long term changes is vital for ...
Nichol, Caroline, David Henry, Henry, David, Caroline Nichol, Woodhouse, Iain, Malcolm Macdonald, Henry, David M, Jack, Jim, Iain Woodhouse, Emal Rumi, Rumi, Emal, Macdonald, Malcolm, Jack, James W, Jim Jack   +13 more
core   +1 more source

Applicability of the steady‐state oxygen stable isotope method for estimating metabolism in low‐productivity Arctic lakes

Limnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson, Marcus Klaus, Cristian Gudasz, Matthew Bogard, Gerard Rocher‐Ros, Dominic Vachon, Jan Karlsson   +6 more
wiley   +1 more source

How drought severity constrains gross primary production(GPP) and its partitioning among carbon pools in a Quercus ilex coppice? [PDF]

Biogeosciences, 2014
Abstract. The partitioning of photosynthates toward biomass compartments plays a crucial role in the carbon (C) sink function of forests. Few studies have examined how carbon is allocated toward plant compartments in drought-prone forests. We analyzed the fate of gross primary production (GPP) in relation to yearly water deficit in an old evergreen ...
Rambal, Serge, Lempereur, Morine, Limousin, Jean-Marc, Martin-StPaul, Nicolas, Ourcival, Jean-Marc, Rodriguez-Calcerrada, Jesus   +5 more
openaire   +5 more sources

Surface‐Atmosphere Carbon Dioxide Exchange and Ecosystem Water Use Efficiency in a Multi‐Functional Perennial Polyculture Agroecosystem

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 2, June 2026.
ABSTRACT Perennial polycultures, with a combination of perenniality and vegetation diversity, have carbon mitigation potential and water conservation benefits, via increased plant carbon uptake and improved ecosystem water use efficiency (EWUE). Few studies have assessed the coupled carbon and water balance in perennial polyculture agroecosystems that ...
Ojaswee Shrestha, Gabriela De La Roca, Philip W. Ramsey, Sophie Hoffman, Paul C. Stoy   +4 more
wiley   +1 more source

Crop Yield Estimation in the Canadian Prairies Using Terra/MODIS-Derived Crop Metrics

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
We evaluated the utility of Terra/MODIS-derived crop metrics for yield estimation across the Canadian Prairies. This study was undertaken at the Census Agriculture Region (CAR) and the Rural Municipality (RM) of the province of Saskatchewan, in three ...
Jiangui Liu, Ted Huffman, Budong Qian, Jiali Shang, Qingmou Li, Taifeng Dong, Andrew Davidson, Qi Jing   +7 more
doaj   +1 more source

Seasonal patterns of net ecosystem exchange of carbon (NEE), gross primary productivity (GPP), and ecosystem respiration (R_eco) in the alpine meadow.

, 2020
Seasonal patterns of net ecosystem exchange of carbon (NEE), gross primary productivity (GPP), and ecosystem respiration (Reco) in the alpine meadow.
Jia Qin (293443), Jinkui Wu (8436498), Yongjian Ding (4683226), Shiwei Liu (644396), Hao Wu (65943), Hongyuan Li (398743), Di Zeng (277482)   +6 more
core   +1 more source

A Top‐Down View of Global and Regional Carbon Budgets From an Ensemble of Atmospheric Inversions

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Atmospheric inversions provide surface CO2 flux estimates based on in situ observed atmospheric CO2 mole fractions or satellite‐based column average CO2 (XCO2). Here, we provide a detailed assessment of 14 atmospheric CO2 inversions included in the Global Carbon Budget (GCB2024).
A. M. van der Woude, I. T. Luijkx, R. J. de Kok, W. Peters, F. Chevallier, C. Rödenbeck, P. Ciais, N. Chandra, K. Wang, R. Janardanan, H. van Asperen, A. Bastos, A. van den Berg, A. A. Bloom, S. Botía, K. Bowman, J. G. Canadell, R. A. F. de Souza, C. Q. Dias‐Junior, L. Feng, P. Friedlingstein, L. V. Gatti, E. Gloor, K. Ishijima, F. Jiang, Z. Jin, W. Ju, X. Lan, J. Liu, Z. Liu, T. Machida, S. Maksyutov, A. C. Manning, A. Martinez, G. A. Martins, K. McKain, J. B. Miller, L. Nayagam, Y. Niwa, P. I. Palmer, P. K. Patra, P. A. Pickers, B. Poulter, B. B. Stephens, C. Sweeney, S. Wofsy, Z. Wu, D. Yang, J. Yun, N. Zeng   +49 more
wiley   +1 more source

US Gross Primary Productivity (GPP) Dataset 2020

USA Gross Primary Productivity (GPP) Dataset 2020 Product: Gross Primary Productivity (GPP) Year: 2020 Region: USA Temporal Scale: 8 Days Spatial Resolution: 500 meters Format: NetCDF (.nc) Projection: Geographic Lat/Long Method: Light-use-efficiency ...
Dash, Jadu, Bandopadhyay, Subhajit, Ogutu, Booker   +2 more
core   +1 more source

Toward a consistency cross-check of eddy covariance flux–based and biometric estimates of ecosystem carbon balance [PDF]

, 2009
Quantification of an ecosystem's carbon balance and its components is pivotal for understanding both ecosystem functioning and global cycling. Several methods are being applied in parallel to estimate the different components of the CO2 balance. However,
Schulze, E., Janssens, I.A., Schulze, E.D., Linder, S.K., Schulze, E.-D., Janssens, I., Goulden, Michael L., Reichstein, M., Kutsch, W.L., Papale, D., Saunders, M., Law, B. E., Matteucci, G, Kutsch, Werner L., Moors, E., Munger, J. W., Schulze, Ernst-Detlef, Pilegaard, Kim, Janssens, Ivan, Falge, E., Janssens, I. A., Munger, J.W., Janssens, Ivan A., Moors, E.; id_orcid, Law, B., Kutsch, W., Munger, J. William, Moors, E. J., Law, Beverly E., Luyssaert, Sebastiaan, Pilegaard, K., Dragoni, D., Granier, A., Linder, S., Kutch, W.L., Falge, E.M., Schulze, E. D., Goulden, M. L., Falge, E. M., Luyssaert, S.; id_orcid, Munger, J., Luyssaert, S., Law, B.E., Goulden, M., Moors, E.J., Kutsch, W. L., Goulden, M.L., Matteucci, G.   +47 more
core   +1 more source

Contrasting Net Community Production in the Oligotrophic Western North Pacific Subtropical Gyre During the Late Summers of 2020 and 2022: The Roles of Multiple Environmental Drivers

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Although the North Pacific Subtropical Gyre (NPSG) is among the most oligotrophic regions, its vast expanse means that small productivity shifts can alter the global carbon budget. We quantified net community production (NCP) from high‐resolution O2 ${\mathrm{O}}_{2}$/Ar measurements and gross primary production (GPP) from 18O incubations in ...
Inhee Lee, Doshik Hahm, Young Shin Kwon, Seon‐Eun Lee, Geun‐Ha Park, Young Ho Ko, Junhyeong Seo, Wonsun Park, Tae‐Wook Kim, Sok Kuh Kang   +9 more
wiley   +1 more source