Publication Search
Emmerich, W. E.
Ecosystem water use efficiency (EWUE) is defined as the net carbon uptake per amount of water lost from the ecosystem and is a useful measure of the functionality in semiarid shrub and grassland communities. C4 grasses have higher water use efficiency (WUE) than do C3 shrubs, although it has been postulated …
Journal: Rangeland Ecology & Management, Volume 60 (5): 464-470 (2007). DOI: 10.2111/1551-5028(2007)60[464:ewueia]2.0.co;2 Sites: US-Wkg
Watts, C. J., Scott, R. L., Garatuza-Payan, J., Rodriguez, J. C., Prueger, J. H., Kustas, W. P., Douglas, M.
The vegetation in the core region of the North American monsoon (NAM) system changes dramatically after the onset of the summer rains so that large changes may be expected in the surface fluxes of radiation, heat, and moisture. Most of this region lies in the rugged terrain of western Mexico and very few measurements of these fluxes …
Journal: Journal Of Climate, Volume 20 (9): 1810-1820 (2007). DOI: 10.1175/jcli4088.1 Sites: US-Whs, US-Wkg
SKOWRONSKI, N., CLARK, K., NELSON, R., HOM, J., PATTERSON, M.
We used a single-beam, first return profiling LIDAR (Light Detection and Ranging) measurements of canopy height, intensive biometric measurements in plots, and Forest Inventory and Analysis (FIA) data to quantify forest structure and ladder fuels (defined as vertical fuel continuity between the understory and canopy) in the New Jersey …
Journal: Remote Sensing Of Environment, Volume 108 (2): 123-129 (2007). DOI: 10.1016/j.rse.2006.09.032 Sites: US-Ced, US-Slt
Yepez, E. A., Scott, R. L., Cable, W. L., Williams, D. G.
We investigated how the distribution of precipitation over a growing season influences the coupling
of carbon and water cycle components in a semiarid floodplain woodland dominated by the deep-rooted velvet mesquite (Prosopis velutina). Gross ecosystem production (GEP) and ecosystem respiration (Reco) were frequently uncoupled because …
Journal: Ecosystems, Volume 10 (7): 1100-1115 (2007). DOI: 10.1007/s10021-007-9079-y Sites: US-CMW
Chen, Q., Gong, P., Baldocchi, D., Xie, G.
Filtering methods based on morphological operations have been developed in some previous studies. The biggest challenge for these methods is how to keep the terrain features unchanged while using large window sizes for the morphological opening. Zhang et al. (2003) tried to achieve this goal, but their method required the assumption …
Journal: Photogrammetric Engineering & Remote Sensing, Volume 73 (2): 175-185 (2007). DOI: 10.14358/pers.73.2.175 Sites: US-Ton
Gough, C. M., Vogel, C. S., Kazanski, C., Nagel, L., Flower, C. E., Curtis, P. S.
Journal: Forest Ecology And Management, Volume 244 (1-3): 60-67 (2007). DOI: 10.1016/j.foreco.2007.03.039 Sites: US-UMB
Schuur, E. A., Crummer, K. G., Vogel, J. G., Mack, M. C.
Climate warming is expected to have a large impact on plant species composition and productivity in northern latitude ecosystems. Warming can affect vegetation communities directly through temperature effects on plant growth and indirectly through alteration of soil nutrient availability. In addition, warming can cause permafrost …
Journal: Ecosystems, Volume 10 (2): 280-292 (2007). DOI: 10.1007/s10021-007-9024-0 Sites: US-EML
Noormets, A., Chen, J., Crow, T. R.
The age-dependent variability of ecosystem carbon (C) fluxes was assessed by measuring the net ecosystem exchange of C (NEE) in five managed forest stands in northern Wisconsin, USA. The study sites ranged in age from 3-year-old clearcut to mature stands (65 years). All stands, except the clearcut, …
Journal: Ecosystems, Volume 10 (2): 187-203 (2007). DOI: 10.1007/s10021-007-9018-y Sites: US-Wi0, US-Wi1, US-Wi2, US-Wi3, US-Wi4, US-Wi6, US-Wi8
Luo, H., Oechel, W. C., Hastings, S. J., Zulueta, R., Qian, Y., Kwon, H.
Carbon flux in arid and semiarid area shrublands, especially in old-growth shrub ecosystems, has been rarely studied using eddy covariance techniques. In this study, eddy covariance measurements over a 100-year old-growth chamise-dominated chaparral shrub ecosystem were conducted for 7 years from 1996 to 2003. A carbon sink, from …
Journal: Global Change Biology, Volume 13 (2): 386-396 (2007). DOI: 10.1111/j.1365-2486.2006.01299.x Sites: US-SO2, US-SO3, US-SO4
Glenn, A. J., Flanagan, L. B., Syed, K. H., Carlson, P. J.
Net ecosystem carbon dioxide exchange was measured in two contrasting peatlands in northern Alberta, Canada using the eddy covariance technique during the growing season (May–October). Sphagnum spp. made up approximately 66% of the total LAI (1.52 m2 m−2) at the poor fen and the total N content …
Journal: Agricultural And Forest Meteorology, Volume 140 (1-4): 115-135 (2006). DOI: 10.1016/j.agrformet.2006.03.020 Sites: CA-WP2, CA-WP3
