Publications

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Publications Found: 6

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

Belowground Carbon Allocation In Forests Estimated From Litterfall And IRGA-Based Soil Respiration Measurements
Davidson, E., Savage, K., Bolstad, P., Clark, D., Curtis, P., Ellsworth, D., Hanson, P., Law, B., Luo, Y., Pregitzer, K., Randolph, J., Zak, D.

Allocation of C to belowground plant structures is one of the most important, yet least well quantified fluxes of C in terrestrial ecosystems. In a literature review of mature forests worldwide, Raich …


Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 39-51 (2002), ISBN . DOI: 10.1016/s0168-1923(02)00101-6 Sites:
CR-Lse, US-Dk3, US-Ho1, US-Me4, US-MMS, US-UMB, US-WBW

Estimation Of Tropical Forest Structural Characteristics Using Large-Footprint Lidar
Drake, J. B., Dubayah, R. O., Clark, D. B., Knox, R. G., Blair, J., Hofton, M. A., Chazdon, R. L., Weishampel, J. F., Prince, S.

Quantification of forest structure is important for developing a better understanding of how forest ecosystems function. Additionally, estimation of forest structural attributes, such as aboveground biomass (AGBM), is an important step in identifying the amount of carbon in terrestrial vegetation pools and is central to global carbon …


Journal: Remote Sensing Of Environment, Volume 79 (2-3): 305-319 (2002), ISBN . DOI: 10.1016/s0034-4257(01)00281-4 Sites: CR-Lse

Sensitivity Of Large-Footprint Lidar To Canopy Structure And Biomass In A Neotropical Rainforest
Drake, J. B., Dubayah, R. O., Knox, R. G., Clark, D. B., Blair, J.

Accurate estimates of the total biomass in terrestrial vegetation are important for carbon dynamics studies at a variety of scales. Although aboveground biomass is difficult to quantify over large areas using traditional techniques, lidar remote sensing holds great promise for biomass estimation because it directly measures components …


Journal: Remote Sensing Of Environment, Volume 81 (2-3): 378-392 (2002), ISBN . DOI: 10.1016/s0034-4257(02)00013-5 Sites: CR-Lse