HR: 16:30h
AN: A34B-04    [Abstracts]
TI: Water use in an Introduced Buffel Grass (Cenchurs Ciliaris) Savanna in an Arid Region.
AU: * Castellanos, A
EM: acastell@guaymas.uson.mx
AF: University of Sonora, Blvd. Encinas y Rosales, Hermosillo, Son 83000 Mexico
AU: Rodriguez, J
EM: jcrod2001@yahoo.com
AF: IMADES, Reyes y Aguascalientes, Hermosillo, Son 83190 Mexico
AU: de la Barrera, E
EM: edlb@guayacan.uson.mx
AF: University of Sonora, Blvd. Encinas y Rosales, Hermosillo, Son 83000 Mexico
AU: Mendez, R
EM: rmendez@rtn.uson.mx
AF: University of Sonora, Blvd. Encinas y Rosales, Hermosillo, Son 83000 Mexico
AU: Watts, C
EM: watts@fisica.uson.mx
AF: University of Sonora, Blvd. Encinas y Rosales, Hermosillo, Son 83000 Mexico
AB: Buffel grasslands have been a management strategy introduced in Sonoran Desert habitats to reverse degraded productivity in rangelands. Initial scrape of native vegetation but trees results in a savanna type of habitat. We followed evapotranspiration at a site using an eddy covariance approach and water use on individual species. Seasonal pulses of rainfall and total water use were found and compared to known estimates of similar habitats in other arid and semiarid regions. Previous studies of ET on native vegetation close to our study site allowed us to compare changes in the water use of natural and managed vegetation cover under similar habitat conditions.
DE: 0315 Biosphere/atmosphere interactions
DE: 0325 Evolution of the atmosphere
DE: 0400 Biogeosciences
DE: 1851 Plant ecology
DE: 1878 Water/energy interactions
SC: Atmospheric Sciences [A]
MN: 2005 Joint Assembly