Search Results - "Journal of geophysical research. Biogeosciences"

Ecosystem carbon dioxide fluxes after disturbance in forests of North America by Amiro, B. D., Barr, A. G., Barr, J. G., Black, T. A., Bracho, R., Brown, M., Chen, J., Clark, K. L., Davis, K. J., Desai, A. R., Dore, S., Engel, V., Fuentes, J. D., Goldstein, A. H., Goulden, M. L., Kolb, T. E., Lavigne, M. B., Law, B. E., Margolis, H. A., Martin, T., McCaughey, J. H., Misson, L., Montes-Helu, M., Noormets, A., Randerson, J. T., Starr, G., Xiao, J.

“…Disturbances are important for renewal of North American forests. Here we summarize more than 180 site years of eddy covariance measurements of carbon dioxide…”
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Forest disturbance and recovery: A general review in the context of spaceborne remote sensing of impacts on aboveground biomass and canopy structure by Frolking, S., Palace, M. W., Clark, D. B., Chambers, J. Q., Shugart, H. H., Hurtt, G. C.

“…Abrupt forest disturbances generating gaps >0.001 km2 impact roughly 0.4–0.7 million km2 a−1. Fire, windstorms, logging, and shifting cultivation are dominant…”
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Importance of biomass in the global carbon cycle by Houghton, R. A., Hall, Forrest, Goetz, Scott J.

“…Our knowledge of the distribution and amount of terrestrial biomass is based almost entirely on ground measurements over an extremely small, and possibly…”
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Global burned area and biomass burning emissions from small fires by Randerson, J. T., Chen, Y., van der Werf, G. R., Rogers, B. M., Morton, D. C.

“…In several biomes, including croplands, wooded savannas, and tropical forests, many small fires occur each year that are well below the detection limit of the…”
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Mapping forest canopy height globally with spaceborne lidar by Simard, Marc, Pinto, Naiara, Fisher, Joshua B., Baccini, Alessandro

“…Data from spaceborne light detection and ranging (lidar) opens the possibility to map forest vertical structure globally. We present a wall‐to‐wall, global map…”
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Analysis of daily, monthly, and annual burned area using the fourth-generation global fire emissions database (GFED4) by Giglio, Louis, Randerson, James T., van der Werf, Guido R.

“…We describe the fourth generation of the Global Fire Emissions Database (GFED4) burned area data set, which provides global monthly burned area at 0.25° …”
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Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations by Jung, Martin, Reichstein, Markus, Margolis, Hank A., Cescatti, Alessandro, Richardson, Andrew D., Arain, M. Altaf, Arneth, Almut, Bernhofer, Christian, Bonal, Damien, Chen, Jiquan, Gianelle, Damiano, Gobron, Nadine, Kiely, Gerald, Kutsch, Werner, Lasslop, Gitta, Law, Beverly E., Lindroth, Anders, Merbold, Lutz, Montagnani, Leonardo, Moors, Eddy J., Papale, Dario, Sottocornola, Matteo, Vaccari, Francesco, Williams, Christopher

“…We upscaled FLUXNET observations of carbon dioxide, water, and energy fluxes to the global scale using the machine learning technique, model tree ensembles…”
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Freshwater and its role in the Arctic Marine System: Sources, disposition, storage, export, and physical and biogeochemical consequences in the Arctic and global oceans by Carmack, E. C., Yamamoto‐Kawai, M., Haine, T. W. N., Bacon, S., Bluhm, B. A., Lique, C., Melling, H., Polyakov, I. V., Straneo, F., Timmermans, M.‐L., Williams, W. J.

“…The Arctic Ocean is a fundamental node in the global hydrological cycle and the ocean's thermohaline circulation. We here assess the system's key functions and…”
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Arctic terrestrial hydrology: A synthesis of processes, regional effects, and research challenges by Bring, A., Fedorova, I., Dibike, Y., Hinzman, L., Mård, J., Mernild, S. H., Prowse, T., Semenova, O., Stuefer, S. L., Woo, M.‐K.

“…Terrestrial hydrology is central to the Arctic system and its freshwater circulation. Water transport and water constituents vary, however, across a very…”
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Photochemical degradation of dissolved organic matter and dissolved lignin phenols from the Congo River by Spencer, Robert G. M., Stubbins, Aron, Hernes, Peter J., Baker, Andy, Mopper, Kenneth, Aufdenkampe, Anthony K., Dyda, Rachael Y., Mwamba, Vincent L., Mangangu, Arthur M., Wabakanghanzi, Jose N., Six, Johan

“…Photochemical degradation of Congo River dissolved organic matter (DOM) was investigated to examine the fate of terrigenous DOM derived from tropical…”
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Dissolved organic carbon and chromophoric dissolved organic matter properties of rivers in the USA by Spencer, Robert G. M., Butler, Kenna D., Aiken, George R.

“…Dissolved organic carbon (DOC) concentration and chromophoric dissolved organic matter (CDOM) parameters were measured over a range of discharge in 30 U.S…”
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Microbial Community Responses to Vanadium Distributions in Mining Geological Environments and Bioremediation Assessment by Zhang, Baogang, Wang, Song, Diao, Muhe, Fu, Jie, Xie, Miaomiao, Shi, Jiaxin, Liu, Ziqi, Jiang, Yufeng, Cao, Xuelong, Borthwick, Alistair G. L.

“…Vanadium mining activities can cause contamination of the surrounding geological environment. Vanadium may exist in multiple matrices due to its migration and…”
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Improving canopy processes in the Community Land Model version 4 (CLM4) using global flux fields empirically inferred from FLUXNET data by Bonan, Gordon B., Lawrence, Peter J., Oleson, Keith W., Levis, Samuel, Jung, Martin, Reichstein, Markus, Lawrence, David M., Swenson, Sean C.

“…The Community Land Model version 4 (CLM4) overestimates gross primary production (GPP) compared with data‐driven estimates and other process models. We use…”
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Elevated dissolved organic carbon biodegradability from thawing and collapsing permafrost by Abbott, Benjamin W., Larouche, Julia R., Jones Jr, Jeremy B., Bowden, William B., Balser, Andrew W.

“…As high latitudes warm, a portion of the large organic carbon pool stored in permafrost will become available for transport to aquatic ecosystems as dissolved…”
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Improvements to the Community Land Model and their impact on the hydrological cycle by Oleson, K. W., Niu, G.-Y., Yang, Z.-L., Lawrence, D. M., Thornton, P. E., Lawrence, P. J., Stöckli, R., Dickinson, R. E., Bonan, G. B., Levis, S., Dai, A., Qian, T.

“…The Community Land Model version 3 (CLM3) is the land component of the Community Climate System Model (CCSM). CLM3 has energy and water biases resulting from…”
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A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis by Schaefer, Kevin, Schwalm, Christopher R., Williams, Chris, Arain, M. Altaf, Barr, Alan, Chen, Jing M., Davis, Kenneth J., Dimitrov, Dimitre, Hilton, Timothy W., Hollinger, David Y., Humphreys, Elyn, Poulter, Benjamin, Raczka, Brett M., Richardson, Andrew D., Sahoo, Alok, Thornton, Peter, Vargas, Rodrigo, Verbeeck, Hans, Anderson, Ryan, Baker, Ian, Black, T. Andrew, Bolstad, Paul, Chen, Jiquan, Curtis, Peter S., Desai, Ankur R., Dietze, Michael, Dragoni, Danilo, Gough, Christopher, Grant, Robert F., Gu, Lianhong, Jain, Atul, Kucharik, Chris, Law, Beverly, Liu, Shuguang, Lokipitiya, Erandathie, Margolis, Hank A., Matamala, Roser, McCaughey, J. Harry, Monson, Russ, Munger, J. William, Oechel, Walter, Peng, Changhui, Price, David T., Ricciuto, Dan, Riley, William J., Roulet, Nigel, Tian, Hanqin, Tonitto, Christina, Torn, Margaret, Weng, Ensheng, Zhou, Xiaolu

“…Accurately simulating gross primary productivity (GPP) in terrestrial ecosystem models is critical because errors in simulated GPP propagate through the model…”
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Vulnerability of high-latitude soil organic carbon in North America to disturbance by Grosse, Guido, Harden, Jennifer, Turetsky, Merritt, McGuire, A. David, Camill, Philip, Tarnocai, Charles, Frolking, Steve, Schuur, Edward A. G., Jorgenson, Torre, Marchenko, Sergei, Romanovsky, Vladimir, Wickland, Kimberly P., French, Nancy, Waldrop, Mark, Bourgeau-Chavez, Laura, Striegl, Robert G.

“…This synthesis addresses the vulnerability of the North American high‐latitude soil organic carbon (SOC) pool to climate change. Disturbances caused by climate…”
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Sun‐Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements by Miao, Guofang, Guan, Kaiyu, Yang, Xi, Bernacchi, Carl J., Berry, Joseph A., DeLucia, Evan H., Wu, Jin, Moore, Caitlin E., Meacham, Katherine, Cai, Yaping, Peng, Bin, Kimm, Hyungsuk, Masters, Michael D.

“…Recent development of sun‐induced chlorophyll fluorescence (SIF) technology is stimulating studies to remotely approximate canopy photosynthesis (measured as…”
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Retrospective retrieval of long-term consistent global leaf area index (1981-2011) from combined AVHRR and MODIS data by Liu, Yang, Liu, Ronggao, Chen, Jing M.

“…In this paper, we present an approach for generating a consistent long‐term global leaf area index (LAI) product (1981–2011) by quantitative fusion of Moderate…”
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Factors controlling CO2 exchange on timescales from hourly to decadal at Harvard Forest by Urbanski, S., Barford, C., Wofsy, S., Kucharik, C., Pyle, E., Budney, J., McKain, K., Fitzjarrald, D., Czikowsky, M., Munger, J. W.

“…We analyzed 13 years (1992−2004) of CO2 flux data, biometry, and meteorology from a mixed deciduous forest in central Massachusetts. Annual net uptake of CO2…”
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