Publications

Publications Found: 1437

Long-Term Variability And Environmental Control Of The Carbon Cycle In An Oak-Dominated Temperate Forest
Xie, J., Chen, J., Sun, G., Chu, H., Noormets, A., Ouyang, Z., John, R., Wan, S., Guan, W.

Our understanding of the long-term carbon (C) cycle of temperate deciduous forests and its sensitivity to climate variability is limited due to the large temporal dynamics of C fluxes. The goal of the study was to quantify the effects of environmental variables on …


Journal: Forest Ecology And Management, Volume 313 (1): 319-328 (2014). DOI: 10.1016/j.foreco.2013.10.032 Sites: US-Oho

Tree-Ring δ 13c Tracks Flux Tower Ecosystem Productivity Estimates In A Ne Temperate Forest
Belmecheri, S., Maxwell, R. S., Taylor, A. H., Davis, K. J., Freeman, K. H., Munger, W. J.

We investigated relationships between tree-ring δ13C and growth, and flux tower estimates of gross primary productivity (GPP) at Harvard Forest from 1992 to 2010. Seasonal variations of derived photosynthetic isotope discrimination (Δ13C) and leaf intercellular CO2 concentration (c i ) showed significant increasing trends for the …


Journal: Environmental Research Letters, Volume 9 (7): 074011 (2014). DOI: 10.1088/1748-9326/9/7/074011 Sites: US-Ha1

Net Ecosystem Methane And Carbon Dioxide Exchanges In A Lake Erie Coastal Marsh And A Nearby Cropland
Chu, H., Chen, J., Gottgens, J. F., Ouyang, Z., John, R., Czajkowski, K., Becker, R.

Net ecosystem carbon dioxide (FCO2) and methane (FCH4) exchanges were measured by using the eddy covariance method to quantify the atmospheric carbon budget at a Typha– and Nymphaea-dominated freshwater marsh (March 2011 to March 2013) and a soybean cropland (May 2011 to May 2012) in northwestern …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 119 (5): 722-740 (2014). DOI: 10.1002/2013JG002520 Sites: US-CRT, US-WPT

Effects Of Heat And Drought On Carbon And Water Dynamics In A Regenerating Semi-Arid Pine Forest: A Combined Experimental And Modeling Approach
Ruehr, N. K., Law, B. E., Quandt, D., Williams, M.


Journal: Biogeosciences, Volume 11 (15): 4139-4156 (2014). DOI: 10.5194/bg-11-4139-2014 Sites: US-Me6

Remote Sensing Of Annual Terrestrial Gross Primary Productivity From Modis: An Assessment Using The Fluxnet La Thuile Data Set
Verma, M., Friedl, M. A., Richardson, A. D., Kiely, G., Cescatti, A., Law, B. E., Wohlfahrt, G., Gielen, B., Roupsard, O., Moors, E. J., Toscano, P., Vaccari, F. P., Gianelle, D., Bohrer, G., Varlagin, A., Buchmann, N., van Gorsel, E., Montagnani, L., Propastin, P.


Journal: Biogeosciences, Volume 11 (8): 2185-2200 (2014). DOI: 10.5194/bg-11-2185-2014 Sites: US-UMB

High-Resolution Characterization Of A Semiarid Watershed: Implications On Evapotranspiration Estimates
Templeton, R. C., Vivoni, E. R., Méndez-Barroso, L. A., Pierini, N. A., Anderson, C. A., Rango, A., Laliberte, A. S., Scott, R. L.

The North American monsoon (NAM) contributes roughly half of the annual precipitation in the Chihuahuan Desert from July to September. Relatively frequent, intense storms increase soil moisture and lead to ephemeral runoff. Quantifying these processes, however, is difficult due to the sparse nature of existing observations. This …


Journal: Journal Of Hydrology, Volume 509: 306-319 (2014). DOI: https://doi.org/10.1016/j.jhydrol.2013.11.047 Sites: US-Jo2

Species-specific transpiration responses to intermediate disturbance in a northern hardwood forest
Matheny, A.M. Bohrer, G. Vogel, C.S. Morin, T.H. He, L. Frasson, R.P.dM. Mirfenderesgi, G. Schäfer, K.V.R. Gough, C.M. Ivanov, V.Y. Curtis, P.S.

Intermediate disturbances shape forest structure and composition, which may in turn alter carbon, nitrogen, and water cycling. We used a large-scale experiment in a forest in northern lower Michigan where we prescribed an intermediate disturbance by stem girdling all canopy-dominant early successional trees to simulate an accelerated …


Journal: Journal of Geophysical Research-Biogeosciences, Volume 119: 2292-2311 (2014). DOI: 10.1002/2014JG002804 Sites: US-UMB

Role Of Surface Energy Exchange For Simulating Wind Turbine Inflow: A Case Study In The Southern Great Plains, Usa
Wharton, S., Simpson, M., Osuna, J., Newman, J., Biraud, S.

he Weather Research and Forecasting (WRF) model is used to investigate choice of land surface model (LSM) on the near surface wind profile, including heights reached by multi-megawatt (MW) wind turbines. Simulations of wind profiles and surface energy fluxes were made using five LSMs of varying degrees of sophistication in dealing …


Journal: Atmosphere, Volume 6 (1): 21-49 (2014). DOI: http://doi.org/10.3390/atmos6010021 Sites: US-ARM

Long-Term Variability In The Water Budget And Its Controls In An Oak-Dominated Temperate Forest
Xie, J., Sun, G., Chu, H., Liu, J., McNulty, S. G., Noormets, A., John, R., Ouyang, Z., Zha, T., Li, H., Guan, W., Chen, J.

Water availability is one of the key environmental factors that control ecosystem functions in temperate forests. Changing climate is likely to alter the ecohydrology and other ecosystem processes, which affect forest structures and functions. We constructed a multi-year water budget (2004–2010) and quantified environmental controls …


Journal: Hydrological Processes, Volume 28 (25): 6054-6066 (2014). DOI: 10.1002/hyp.10079 Sites: US-Oho

Climate Change And Fire Management In The Mid-Atlantic Region
Clark, K. L., Skowronski, N., Renninger, H., Scheller, R.

In this review, we summarize the potential impacts of climate change on wildfire activity in the mid-Atlantic region, and then consider how the beneficial uses of prescribed fire could conflict with mitigation needs for climate change, focusing on patters of carbon (C) sequestration by forests in the region. We use a synthesis of …


Journal: Forest Ecology And Management, Volume 327: 306-315 (2014). DOI: 10.1016/j.foreco.2013.09.049 Sites: US-Ced