Publications

Publications Found: 1437

Increased Water Use Efficiency But Contrasting Tree Growth Patterns In Fitzroya Cupressoides Forests Of Southern Chile During Recent Decades
Urrutia‐Jalabert, R., Malhi, Y., Barichivich, J., Lara, A., Delgado‐Huertas, A., Rodríguez, C. G., Cuq, E.

Little is known about how old‐growth and massive forests are responding to environmental change. We investigated tree‐ring growth and carbon isotopes of the long‐lived and high biomass Fitzroya cupressoid es in two stands growing in contrasting environmental conditions in the Coastal Range (~300 years old) and Andean Cordilleras …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 120 (12): 2505-2524 (2015). DOI: 10.1002/2015JG003098 Sites: CL-ACF

Evaluation Of Impacts Of Management In An Anthropogenic Peatland Using Field And Remote Sensing Data
Cabezas, J., Galleguillos, M., Valdés, A., Fuentes, J. P., Pérez, C., Perez-Quezada, J. F.

Peatlands are a type of wetland characterized by the accumulation of organic matter, called peat,
and are important carbon reservoirs. In areas with poor drainage, human-induced forest fires and logging can produce flooded conditions and organic matter accumulation, which generates an ecosystem called anthropogenic peatland. Productive …


Journal: Ecosphere, Volume 6 (12): art282 (2015). DOI: 10.1890/ES15-00232.1 Sites: CL-SDP

Seasonal fluxes of carbonyl sulfide in a midlatitude forest
Commane, R.C., Meredith, L. K., Baker, I. T., Berry, J. A., Munger, J. W, Montzka, S. A, Templer, P. H., Juice, S. M., Zahniser, M. S., Wofsy, S. C.

Carbonyl sulfide (OCS), the most abundant sulfur gas in the
atmosphere, has a summer minimum associated with uptake by
vegetation and soils, closely correlated with CO 2 . We report the
first direct measurements to our knowledge of the ecosystem flux
of OCS throughout an annual cycle, at a mixed temperate forest.
The forest …


Journal: PNAS, Volume : 1-7 (2015). DOI: 10.1073/pnas.1504131112 Sites: US-Ha1

The Relative Contributions Of Alpine And Subalpine Ecosystems To The Water Balance Of A Mountainous, Headwater Catchment
Knowles, J. F., Harpold, A. A., Cowie, R., Zeliff, M., Barnard, H. R., Burns, S. P., Blanken, P. D., Morse, J. F., Williams, M. W.

Climate change is affecting the hydrology of high‐elevation mountain ecosystems, with implications for ecosystem functioning and water availability to downstream populations. We directly and continuously measured precipitation and evapotranspiration (ET) from both subalpine forest and alpine tundra portions of a single catchment, …


Journal: Hydrological Processes, Volume 29 (22): 4794-4808 (2015). DOI: 10.1002/hyp.10526 Sites: US-NR1

The carbon balance pivot point of southwestern U.S. semiarid ecosystems: Insights from the 21st century drought
Scott, R.L., Biederman, J.A., Hamerlynck, E.P., Barron-Gafford, G.

Global-scale studies indicate that semiarid regions strongly regulate the terrestrial carbon sink.
However, we lack understanding of how climatic shifts, such as decadal drought, impact carbon sequestration across the wide range of structural diversity in semiarid ecosystems. Therefore, we used eddy covariance measurements to quantify …


Journal: Journal of Geophysical Research: Biogeosciences, Volume 120: 2612-2624 (2015). DOI: 10.1002/2015JG003181 Sites: US-SRG, US-SRM, US-Whs, US-Wkg

Greenness Indices From Digital Cameras Predict The Timing And Seasonal Dynamics Of Canopy-Scale Photosynthesis
Toomey, M., Friedl, M. A., Frolking, S., Hufkens, K., Klosterman, S., Sonnentag, O., Baldocchi, D. D., Bernacchi, C. J., Biraud, S. C., Bohrer, G., Brzostek, E., Burns, S. P., Coursolle, C., Hollinger, D. Y., Margolis, H. A., McCaughey, H., Monson, R. K., Munger, J. W., Pallardy, S., Phillips, R. P., Torn, M. S., Wharton, S., Zeri, M., Richardson, A. D.


Journal: Ecological Applications, Volume 25 (1): 99-115 (2015). DOI: 10.1890/14-0005.1 Sites: US-UMB

A Modified Micrometeorological Gradient Method For Estimating O3 Dry Depositions Over A Forest Canopy
Wu, Z. Y., Zhang, L., Wang, X. M., Munger, J. W.


Journal: Atmospheric Chemistry And Physics, Volume 15 (13): 7487-7496 (2015). DOI: 10.5194/acp-15-7487-2015 Sites: US-Ha1

Seasonal Controls Of Canopy Chlorophyll Content On Forest Carbon Uptake: Implications For Gpp Modeling
Croft, H., Chen, J. M., Froelich, N. J., Chen, B., Staebler, R. M.


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 120 (8): 1576-1586 (2015). DOI: /10.1002/2015JG002980 Sites: CA-Cbo

Variations in the influence of diffuse light on gross primary productivity in temperate ecosystems
Bohrer, G., Steiner, A.L., Hollinger, D.Y., Suyker, A., Phillips, R.P., Nadelhoffer, K.J.

The carbon storage potential of terrestrial ecosystems depends in part on how atmospheric conditions influence the type and amount of surface radiation available for photosynthesis. Diffuse light, resulting from interactions between incident solar radiation and atmospheric aerosols and clouds, has been postulated to increase carbon …


Journal: Agricultural & Forest Meteorology, Volume 201: 98-110 (2015). DOI: 10.1016/j.agrformet.2014.11.002 Sites: US-Ho1

Carbon Exchange Over Four Growing Seasons For A Subarctic Sedge Fen In Northern Manitoba, Canada
Hanis, K. L., Amiro, B. D., Tenuta, M., Papakyriakou, T., Swystun, K. A.

Net ecosystem exchange of carbon was measured using eddy covariance for four growing seasons at a subarctic hummocky fen in northern Manitoba, Canada. Over a 115 day measurement period each year, cumulative net ecosystem exchange of carbon ranged from a gain of 49 g C m−2 to a loss of 16 g C m−2 with a mean loss of 6 g C m−2 …


Journal: Arctic Science, Volume 1 (2): 27-44 (2015). DOI: 10.1139/as-2015-0003 Sites: CA-CF1, CA-CF2