[Personnel: Last_Name='SORRELL', First_Name='BRIAN']
Water nutrient chemistry of ponds on Bratina Island, AntarcticaEntry ID: K081_2004_2005_NZ_3
Abstract: Tweleve ponds on the McMurdo Ice Shelf were sampled to create and annual data set of water nutrient chemistry (DRP, NH4-N, NO3-N, TDN, TDP), pH, conductivity, temperature, phytoplankton chlorophyll a, and particulate N: P. Biological parameters collected include benthic algal chlorophyll a and ash-free dry weight, benthic microbial biomass, pigment and species composition. Species composition and ... dominance within the microbial mats varies from pond to pond. Photosynthetic and nitrogen fixation rates of benthic algae were determined from several ponds with contrasting physio-chemical properties. Samples were collected from ponds for algal species determination and microbial mat samples were collected and preserved for community spatial structure (i.e. position of each species within the microbial matrix). The annual 12-pond dataset has been operating since January 1988 and is one of the longest-running environmental datasets in Antarctica.
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Start Date: 2005-01-21Stop Date: 2005-01-29
AGRICULTURE > SOILS > SOIL CHEMISTRY
AGRICULTURE > SOILS > SOIL COMPACTION
AGRICULTURE > SOILS > SOIL FERTILITY
AGRICULTURE > SOILS > SOIL MECHANICS
AGRICULTURE > SOILS > SOIL TEXTURE
LAND SURFACE > EROSION/SEDIMENTATION > WEATHERING
LAND SURFACE > SOILS > SOIL CHEMISTRY
LAND SURFACE > SOILS > SOIL CLASSIFICATION
LAND SURFACE > SOILS > SOIL HORIZONS/PROFILE
LAND SURFACE > SOILS > SOIL STRUCTURE
SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING
SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS
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Email: dhendric at ag.arizona.edu
University of Arizona Soil, Water & Environmental Sciences 520 Shantz Building
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Post, D.F., Williams, M.B., Bigham, J.M., and Hendricks, D.M.
1993. Comparison of Surface Area Measurements to Soil
Properties, Agron. Abstr. p. 345. UNRUH, B.L. Silvertooth, J.C.
and Hendricks, D.M. 1993. Potassium Fertility Evaluation of
Several Arizona Soils. Western Soc. Soil Sci. Abstr. p. 4.
Creation and Review Dates
Last DIF Revision Date: 2005-12-02