Publications

Publications Found: 1373

A Unique Combination Of Aerodynamic And Surface Properties Contribute To Surface Cooling In Restored Wetlands Of The Sacramento-San Joaquin Delta, California
Hemes, K. S., Eichelmann, E., Chamberlain, S., Knox, S. H., Oikawa, P. Y., Sturtevant, C., Verfaillie, J., Szutu, D., Baldocchi, D. D.

Land use change and management affect climate by altering both the biogeochemical and biophysical interactions between the land and atmosphere. Whereas climate policy often emphasizes the biogeochemical impact of land use change, biophysical impacts, including changes in reflectance, energy partitioning among sensible and latent …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume : (2018), ISBN . DOI: 10.1029/2018JG004494 Sites: US-Myb, US-Tw1, US-Tw3, US-Tw4

A Biogeochemical Compromise: The High Methane Cost Of Sequestering Carbon In Restored Wetlands
Hemes, K. S., Chamberlain, S. D., Eichelmann, E., Knox, S. H., Baldocchi, D. D.

Peatland drainage is an important driver of global soil carbon loss and carbon dioxide (CO2) emissions. Restoration of peatlands by re‐flooding reverses CO2 losses at the cost of increased methane (CH4) emissions, presenting a biogeochemical compromise. While restoring peatlands is a potentially effective method for sequestering …


Journal: Geophysical Research Letters, Volume : (2018), ISBN . DOI: 10.1029/2018GL077747 Sites: US-Myb, US-Tw1, US-Tw4

Assessing The Interplay Between Canopy Energy Balance And Photosynthesis With Cellulose δ18o: Large-Scale Patterns And Independent Ground-Truthing
Helliker, B. R., Song, X., Goulden, M. L., Clark, K., Bolstad, P., Munger, J. W., Chen, J., Noormets, A., Hollinger, D., Wofsy, S., Martin, T., Baldocchi, D., Euskirchenn, E., Desai, A., Burns, S. P.

There are few whole-canopy or ecosystem scale assessments of the interplay between canopy temperature and photosynthesis across both spatial and temporal scales. The stable oxygen isotope ratio (δ18O) of plant cellulose can be used to resolve a photosynthesis-weighted estimate of canopy temperature, but the method requires independent …


Journal: Oecologia, Volume : (2018), ISBN . DOI: 10.1007/s00442-018-4198-z Sites: US-Bar, US-GLE, US-Ha1, US-NWT, US-WBW, US-WCr

Changes In Photosynthesis And Soil Moisture Drive The Seasonal Soil Respiration-Temperature Hysteresis Relationship
Zhang, Q., Phillips, R. P., Manzoni, S., Scott, R. L., Oishi, A. C., Finzi, A., Daly, E., Vargas, R., Novick, K. A.

In nearly all large-scale terrestrial ecosystem models, soil respiration is represented as a function of soil temperature. However, the relationship between soil respiration and soil temperature is highly variable across sites and there is often a pronounced hysteresis in the soil respiration-temperature relationship over the course …


Journal: Agricultural And Forest Meteorology, Volume 259: 184-195 (2018), ISBN . DOI: 10.1016/j.agrformet.2018.05.005 Sites: US-Dk2, US-Dk3, US-Ha1, US-MMS, US-SRM, US-Wkg

The Importance Of Drought–Pathogen Interactions In Driving Oak Mortality Events In The Ozark Border Region
Wood, J. D., Knapp, B. O., Muzika, R., Stambaugh, M. C., Gu, L.


Journal: Environmental Research Letters, Volume 13 (1): 015004 (2018), ISBN . DOI: 10.1088/1748-9326/aa94fa Sites: US-MOz

Seasonal patterns of canopy photosynthesis captured by remotely sensed sun-induced fluorescence and vegetation indexes in mid-to-high latitude forests: A cross-platform comparison
Xinchen Lu , Xiao Cheng, Xianglan Li Jiquan Chen, Minmin Sun, Ming Ji, Hong He, Siyu Wang, Sen Li, Jianwu Tang

Characterized by the noticeable seasonal patterns of canopy photosynthesis, mid-to-high latitude forests are sen- sitive to climate change and crucial for understanding the global carbon cycle. To monitor the seasonal cycle of the canopy photosynthesis from space, several remotely sensed indexes, such as normalized difference vegeta- …


Journal: Science of the Total Environment, Volume 644: 439-451 (2018), ISBN . DOI: org/10.1016/j.scitotenv.2018.06.269 Sites: US-Prr

In Situ Observations Reveal How Spectral Reflectance Responds To Growing Season Phenology Of An Open Evergreen Forest In Alaska
Kobayashi, H., Nagai, S., Kim, Y., Yang, W., Ikeda, K., Ikawa, H., Nagano, H., Suzuki, R.

Plant phenology timings, such as spring green-up and autumn senescence, are essential state information characterizing biological responses and terrestrial carbon cycles. Current efforts for the in situ reflectance measurements are not enough to obtain the exact interpretation of how seasonal spectral signature responds to phenological …


Journal: Remote Sensing, Volume 10 (7): 1071 (2018), ISBN . DOI: doi:10.3390/rs10071071 Sites: US-Prr

Warming-Induced Earlier Greenup Leads To Reduced Stream Discharge In A Temperate Mixed Forest Catchment
Kim, J. H., Hwang, T., Yang, Y., Schaaf, C. L., Boose, E., Munger, J. W.

The phenological response of vegetation to ongoing climate change may have great implications for hydrological regimes in the eastern United States. However, there have been few studies that analyze its resultant effect on catchment discharge dynamics, separating from dominant climatic controls. In this study, we examined the net …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 123 (6): 1960-1975 (2018), ISBN . DOI: 10.1029/2018JG004438 Sites: US-Ha1, US-Ha2

Chlorophyll Fluorescence Better Captures Seasonal And Interannual Gross Primary Productivity Dynamics Across Dryland Ecosystems Of Southwestern North America
Smith, W. K., Biederman, J. A., Scott, R. L., Moore, D. J., He, M., Kimball, J. S., Yan, D., Hudson, A., Barnes, M. L., MacBean, N., Fox, A. M., Litvak, M. E.


Journal: Geophysical Research Letters, Volume 45 (2): 748-757 (2018), ISBN . DOI: 10.1002/2017GL075922 Sites: US-SRG, US-SRM, US-Whs, US-Wkg

Estimating Regional Effects Of Climate Change And Altered Land Use On Biosphere Carbon Fluxes Using Distributed Time Delay Neural Networks With Bayesian Regularized Learning
Schmidt, A., Creason, W., Law, B. E.

he ability to accurately predict changes of the carbon and energy balance on a regional scale is of great importance for assessing the effect of land use changes on carbon sequestration under future climate conditions. Here, a suite of land cover-specific Distributed Time Delay Neural Networks with a parameter adoption algorithm …


Journal: Neural Networks, Volume 108: 97-113 (2018), ISBN . DOI: 10.1016/j.neunet.2018.08.004 Sites: US-Var