Publications

Publications Found: 1378

Environmental Controls On Net Ecosystem-Level Carbon Exchange And Productivity In A Central American Tropical Wet Forest
Loescher, H. W., Oberbauer, S. F., Gholz, H. L., Clark, D. B.

Difficulty in balancing the global carbon budget has lead to increased attention on tropical forests, which have been estimated to account for up to one third of global gross primary production. Whether tropical forests are sources, sinks, or neutral with respect to their carbon balance with the atmosphere remains unclear. To address …


Journal: Global Change Biology, Volume 9 (3): 396-412 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00599.x Sites: CR-Lse

Arbuscular Mycorrhizal Communities In Tropical Forests Are Affected By Host Tree Species And Environment
Lovelock, C. E., Andersen, K., Morton, J. B.

Arbuscular mycorrhizal (AM) fungi are mutualists with plant roots that are proposed to enhance plant community diversity. Models indicate that AM fungal communities could maintain plant diversity in forests if functionally different communities are spatially separated. In this study we assess the spatial and temporal distribution …


Journal: Oecologia, Volume 135 (2): 268-279 (2003), ISBN . DOI: 10.1007/s00442-002-1166-3 Sites: CR-Lse

Substantial Labile Carbon Stocks And Microbial Activity In Deeply Weathered Soils Below A Tropical Wet Forest
Veldkamp, E., Becker, A., Schwendenmann, L., Clark, D. A., Schulte-Bisping, H.

Contrary to large areas in Amazonia of tropical moist forests with a pronounced dry season, tropical wet forests in Costa Rica do not depend on deep roots to maintain an evergreen forest canopy through the year. At our Costa Rican tropical wet forest sites, we found a large carbon stock in the subsoil of deeply weathered Oxisols, …


Journal: Global Change Biology, Volume 9 (8): 1171-1184 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00656.x Sites: CR-Lse

Inter-annual carbon dioxide uptake of a wet sedge tundra ecosystem in the Arctic
Harazono Y, Mano M, Miyata A, Zulueta RC, Oechel WC


Journal: Tellus, Volume 55B: 215-231 (2003), ISBN . DOI: Sites: US-Cms

An evaluation of ozone exposure metrics for a seasonally drought-stressed ponderosa pine ecosystem
Panek, J. A., Kurpius, M. R., Goldstein, A. H.

Ozone stress has become an increasingly significant factor in cases of forest decline reported throughout the world. Current metrics to estimate ozone exposure for forest trees are derived from atmospheric concentrations and assume that the forest is physiologically active at all times of the growing season. This may be inaccurate …


Journal: Environmental Pollution, Volume 117 (1): 93-100 (2002), ISBN . DOI: 10.1016/S0269-7491(01)00155-5 Sites: US-Blo

Evapotranspiration And Soil Water Content In A Scrub-Oak Woodland Under Carbon Dioxide Enrichment
Hungate, B. A., Reichstein, M., Dijkstra, P., Johnson, D., Hymus, G., Tenhunen, J. D., Hinkle, C., Drake, B. G.

Leaf conductance often decreases in response to elevated atmospheric CO2 concentration (Ca) potentially leading to changes in hydrology. We describe the hydrological responses of Florida scrub oak to elevated Ca during an eight-month period two years after Ca


Journal: Global Change Biology, Volume 8 (3): 289-298 (2002), ISBN . DOI: 10.1046/j.1365-2486.2002.00468.x Sites: US-KS2

Mycorrhizal Mediated Feedbacks Influence Net Carbon Gain And Nutrient Uptake In Andropogon Gerardii
Miller, R. M., Miller, S. P., Jastrow, J. D., Rivetta, C. B.
  • The carbon sink strength of arbuscular mycorrhizal fungi (AMF) was investigated by comparing the growth dynamics of mycorrhizal and nonmycorrhizal Andropogon gerardii plants over a wide range of equivalent tissue phosphorus : nitrogen (P : N) ratios.
  • Host growth, apparent photosynthesis …

    Journal: New Phytologist, Volume 155 (1): 149-162 (2002), ISBN . DOI: 10.1046/j.1469-8137.2002.00429.x Sites: US-IB1, US-IB2

Modeling And Measuring The Effects Of Disturbance History And Climate On Carbon And Water Budgets In Evergreen Needleleaf Forests
Thornton, P., Law, B., Gholz, H. L., Clark, K. L., Falge, E., Ellsworth, D., Goldstein, A., Monson, R., Hollinger, D., Falk, M., Chen, J., Sparks, J.

The effects of disturbance history, climate, and changes in atmospheric carbon dioxide (CO2) concentration and nitrogen deposition (Ndep) on carbon and water fluxes in seven North American evergreen forests are assessed using a coupled water–carbon–nitrogen model, canopy-scale flux observations, and descriptions …


Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 185-222 (2002), ISBN . DOI: 10.1016/s0168-1923(02)00108-9 Sites: US-Ho1, US-Ho2, US-Ho3

Energy Balance Closure At FLUXNET Sites
Wilson, K., Goldstein, A., Falge, E., Aubinet, M., Baldocchi, D., Berbigier, P., Bernhofer, C., Ceulemans, R., Dolman, H., Field, C., Grelle, A., Ibrom, A., Law, B., Kowalski, A., Meyers, T., Moncrieff, J., Monson, R., Oechel, W., Tenhunen, J., Valentini, R., Verma, S.

A comprehensive evaluation of energy balance closure is performed across 22 sites and 50 site-years in FLUXNET, a network of eddy covariance sites measuring long-term carbon and energy fluxes in contrasting ecosystems and climates. Energy balance closure was evaluated by statistical regression of turbulent energy fluxes (sensible …


Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 223-243 (2002), ISBN . DOI: 10.1016/s0168-1923(02)00109-0 Sites: US-Blo

Energy Partitioning Between Latent And Sensible Heat Flux During The Warm Season At FLUXNET Sites
Wilson, K. B., Baldocchi, D. D., Aubinet, M., Berbigier, P., Bernhofer, C., Dolman, H., Falge, E., Field, C., Goldstein, A., Granier, A., Grelle, A., Halldor, T., Hollinger, D., Katul, G., Law, B. E., Lindroth, A., Meyers, T., Moncrieff, J., Monson, R., Oechel, W., Tenhunen, J., Valentini, R., Verma, S., Vesala, T., Wofsy, S.

The warm season (mid-June through late August) partitioning between sensible (H) and latent (LE) heat flux, or the Bowen ratio (β = H/LE), was investigated at 27 sites over 66 site years within the international network of eddy covariance sites (FLUXNET). Variability in β across ecosystems and …


Journal: Water Resources Research, Volume 38 (12): 1294-1305 (2002), ISBN . DOI: 10.1029/2001wr000989 Sites: US-Blo