Article

 

Primary productivity as a control over soil microbial diversity along environmental gradients in a polar desert ecosystem. Public Deposited

https://scholar.colorado.edu/concern/articles/xg94hq15x
Abstract
  • Primary production is the fundamental source of energy to foodwebs and ecosystems, and is thus an important constraint on soil communities. This coupling is particularly evident in polar terrestrial ecosystems where biological diversity and activity is tightly constrained by edaphic gradients of productivity (e.g., soil moisture, organic carbon availability) and geochemical severity (e.g., pH, electrical conductivity). In the McMurdo Dry Valleys of Antarctica, environmental gradients determine numerous properties of soil communities and yet relatively few estimates of gross or net primary productivity (GPP, NPP) exist for this region. Here we describe a survey utilizing pulse amplitude modulation (PAM) fluorometry to estimate rates of GPP across a broad environmental gradient along with belowground microbial diversity and decomposition. PAM estimates of GPP ranged from an average of 0.27 μmol O
Creator
Date Issued
  • 2017-01-01
Academic Affiliation
Journal Title
Journal Volume
  • 5
File Extent
  • 3377-3377
Last Modified
  • 2019-12-06
Identifier
  • PubMed ID: 28761776
Resource Type
Rights Statement
DOI
ISSN
  • 2167-8359
Language
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