Results 81 to 90 of about 324,903 (339)

Estimation of carbon dioxide fluxes on a ridge-hollow bog complex using a high resolution orthophotoplan

Nature Conservation Research: Заповедная наука, 2021
The use of unmanned aerial vehicles for detailed mapping of ecosystems has become increasingly important in recent years. As one of the main terrestrial carbon reserves, peatland ecosystems are of the great interest in obtaining highly detailed ...
Dmitry G. Ivanov, Ivan P. Kotlov, Tatiana Y. Minayeva, Julia A. Kurbatova   +3 more
doaj   +1 more source

Soil water content effects on net ecosystem CO2 exchange and actual evapotranspiration in a Mediterranean semiarid savanna of Central Chile

Scientific Reports, 2018
Biosphere-atmosphere water and carbon fluxes depend on ecosystem structure, and their magnitudes and seasonal behavior are driven by environmental and biological factors. We studied the seasonal behavior of net ecosystem CO2 exchange (NEE), Gross Primary
F. Meza, C. Montes, F. Bravo-Martínez, P. Serrano-Ortiz, A. Kowalski   +4 more
semanticscholar   +1 more source

Accelerating Discovery to Deployment: Argonne's Materials Engineering Research Facility (MERF) and Its Role in Scaling Materials Technologies for Water and Resource Solutions

Advanced Materials Technologies, EarlyView.
In this Perspective, we highlight the processing science and scale‐up capabilities of the Materials Engineering Research Facility (MERF) at the U.S. Department of Energy's Argonne National Laboratory, with an emphasis on practical solutions for sustainable water and critical resource recovery. We demonstrate how national laboratories bridge fundamental
Yuepeng Zhang, Bratin Sengupta, Xiaoao Shi, Haihui Pu, Jeffrey W. Elam, Gregory K. Krumdick, Jessica Durham Macholz, Allison Bennett Irion, Junhong Chen, Seth B. Darling   +9 more
wiley   +1 more source

High net CO₂ and CH₄ release at a eutrophic shallow lake on a formerly drained fen [PDF]

Biogeosciences, 2016
Drained peatlands often act as carbon dioxide (CO2) hotspots. Raising the groundwater table is expected to reduce their CO2 contribution to the atmosphere and revitalise their function as carbon (C) sink in the long term.
D. Franz, F. Koebsch, E. Larmanou, J. Augustin, T. Sachs   +4 more
doaj   +1 more source

Net ecosystem exchange and energy fluxes measured with the eddy covariance technique in a western Siberian bog

, 2017
. Very few studies of ecosystem–atmosphere exchange involving eddy covariance data have been conducted in Siberia, with none in the western Siberian middle taiga.
P. Alekseychik, I. Mammarella, Dmitry Karpov, S. Dengel, I. Terentieva, A. Sabrekov, M. Glagolev, E. Lapshina   +7 more
semanticscholar   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Net carbon-dioxide exchange in green manuring ecosystem,sesbaniaaculeata: assessment through eddy covariance approach

Journal of Agrometeorology, 2014
Fluxes of CO2 from a green manuring crop,dhaincha(Sesbaniaaculeata) grown on a marginal (shallow basaltic) soil were quantified using the open path eddy covariance technique and the characteristics were related to various environmental parameters.
SUNAYAN SAHA, S. K. BAL, P. S. MINHAS, YOGESHWAR SINGH   +3 more
doaj   +1 more source

Evaluating terrestrial CO₂ flux diagnoses and uncertainties from a simple land surface model and its residuals [PDF]

Biogeosciences, 2014
Global terrestrial atmosphere–ecosystem carbon dioxide fluxes are well constrained by the concentration and isotopic composition of atmospheric carbon dioxide. In contrast, considerable uncertainty persists surrounding regional contributions to the
T. W. Hilton, K. J. Davis, K. Keller
doaj   +1 more source

Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: the Manaus LBA site [PDF]

, 2002
Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously ...
Araújo, A.C., Culf, A.D., Dallarosa, R., Elbers, J.A., Gash, J.H.C., Kabat, P., Kruijt, B., Manzi, A.O., Nobre, A.D., Randow, C., von, Stefani, P., Valentini, R.   +11 more
core   +2 more sources

Quantifying net ecosystem exchange by multilevel ecophysiological and turbulent transport models [PDF]

Advances in Water Resources, 2002
To quantify the interplay between scalar sources and sinks (Sc) and net ecosystem exchange (NEE), ‘‘forward’’ and ‘‘inverse’’ approaches have been proposed. The canonical form of forward approaches is a one-dimensional ecophysiological-radiative transfer scheme coupled to turbulent transport theory.
Mario Siqueira, Gabriel Katul, Chun-Ta Lai   +2 more
openaire   +1 more source