NPP Tropical Forest: Chamela, Mexico, 1982-1995, R1Entry ID: NPP_CHM
Abstract: This data set contains five ASCII files (.txt format). Three data files provide net primary productivity (NPP) estimates for a tropical dry deciduous forest within the 3,300-ha Chamela Biological Station, Mexico. There is one file for each of the three permanent watershed plots located along an elevational gradient from 60 to 160 m above sea level. NPP was estimated from field measurements ... obtained during wet and dry seasons between 1982 and 1995. A fourth NPP data file provides average nutrient fluxes into and out of five watersheds. The fifth file provides precipitation and minimum/maximum temperature data from measurements obtained onsite. Tropical deciduous forests such as Chamela are widespread along the Pacific slope of Mexico. The vegetation at Chamela is highly diverse with a well-developed understory of shrubs. One remarkable feature is the seasonality of leaf fall, with most species remaining leafless for several months during the dry season. Detailed data are available for above-ground NPP (fine litterfall, wood increment, and leaf herbivory plus an estimation of understory production), and below-ground NPP (fine root production and root increment). Biomass data and nutrient inputs/outputs (P, K, Ca, Mg) averaged from five watersheds are also included in the data set. Estimated ANPP ranged from 611 to 808 g/m2/year between the three sub-sites (average 682 g/m2/year), and total NPP ranged from 1,119 to 1,353 g/m2/year (average 1,206 g/m2/year). These estimates are thought to represent the lower bounds of NPP because root and stem herbivory have not been taken into account, although leaf herbivory is included.
Data Set Citation
Dataset Originator/Creator: MAASS, M.MARTINEZ-YRIZAR, A.
Dataset Title: NPP Tropical Forest: Chamela, Mexico, 1982-1995, R1
Dataset Release Date: 2013
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/578Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=578&term2attribut...
Start Date: 1982-06-01Stop Date: 1999-10-31
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Phone: 52 (4) 320-0516, 320-0561
Fax: 52 (4) 320-0830
Email: maass at oikos.unam.mx
Instituto de Ecologma Universidad Nacional Autsnoma de Mixico Campus Morelia A.P. 27-3 Morelia
Postal Code: 58089
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
ORNL DAAC User Services Office Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-09-13
Last DIF Revision Date: 2013-11-25