DOI: 10.17190/AMF/1246830

AmeriFlux BASE US-Lin Lindcove Orange Orchard

Dataset Creator(s)

Name Silvano Fares
Email silvano.fares@crea.gov.it
Affiliation Entecra

Dataset Description

This is the AmeriFlux version of the carbon flux data for the site US-Lin Lindcove Orange Orchard. Site Description - The experimental site was a citrus orchard about three km west of the UC Lindcove Research and Experiment Station. The site is characterized by a Mediterranean climate typical of Central California, with warm dry summers and cool wet winters. The soil texture for the upper horizon (0-33 cm) was loam with a particle size distribution of 42% sand, 38% silt, and 20% clay (Kearney Ag Center). Soil pH was 7.4 (Valley Tech Soil Agricultural Laboratory Services). The orchard was drip-irrigated with water applied twice per week in the warm season to ensure water avail- ability close to field capacity. The site was kept clean from understory vegetation and mechanical pruning operations took place twice a year to limit the size ofthe orange trees for harvesting and site maintenance. The block of trees in which the tower and instruments were located was ‘Valencia’ orange on trifoliate rootstock, with a planting date in the 1960’s. The square 4 ha block had dimensions of 200 m NeS and EeW. At the end of the study, we harvested a ‘Valencia’ citrus tree from within the study block to measure citrus leaf area index (LAI) and biomass density. The tree height was 3.7 m as measured with a telescoping pole. We measured canopy radii in the four cardinal directions to calculate a planar area (as seen from above) of 12.2 m2. The mean specific leaf area (SLA) of citrus leaves was 85.4 cm2 g-1 obtained by measuring leaf area of five groups of leaf samples with a LiCor Leaf area meter (mod. LI-3100C) followed by drying and weighing. LAI for the orchard was 3.00, derived using the SLA value and the total dry mass of leaves from the harvested tree, multiplied by the plant population of 237 plants per ha as obtained from spacing measurements and Google Maps imagery.

Dataset Information

Originating Research Organization(s)

Entecra

Country USA
Sponsor Organization(s)

California Air Resources Board and Citrus Research Board

Site Page https://ameriflux.lbl.gov/sites/siteinfo/US-Lin
Data Policy AmeriFlux CC-BY-4.0 License
Citation Silvano Fares (2019), AmeriFlux BASE US-Lin Lindcove Orange Orchard, Ver. 2-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1246830
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