Stoichiometry Experiment

Soil communities in the McMurdo Dry Valleys are subject to many limitations, including resource limitations. However, the nutrients that are predominantly limiting to growth and diversity of soil biota are not known. Additionally, landscape history (N deposition, P weathering) and native N and P con...

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Bibliographic Details
Format: Dataset
Language:unknown
Published: McMurdo Dry Valleys LTERByrd Polar Research Center 108 Scott Hall1090 Carmack RdColumbusOH43210-1002USA(614) 292-4697 2011
Subjects:
soil carbon
soil nitrogen
soil phosphorus
invertebrates
nematodes
CO2 flux
McMurdo
Antarctica
LTER
McMurdo Dry Valleys
Bonney
Fryxell
Von Guerard Stream
Bonney Riegel
Antarc*
Online Access:http://hdl.handle.net/10255/dryad.13376
http://metacat.lternet.edu/knb/metacat/knb-lter-mcm.4014.2/xml
Description
Summary:Soil communities in the McMurdo Dry Valleys are subject to many limitations, including resource limitations. However, the nutrients that are predominantly limiting to growth and diversity of soil biota are not known. Additionally, landscape history (N deposition, P weathering) and native N and P content (glacial till provenance) may influence the ability of soil communities to respond to nutrient additions or changes in nutrient availability associated with environmental change. Long-term experiments in the Bonney and Fryxell basins have been established with yearly application of aqueous nutrient additions: C, N, P, CN, and CP. Multiple nutrients additions were made at the Redfield Ratio of 106:16:1 (C:N:P). Responses of soil chemistry, CO2 flux, and biota are reported.

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