Methanogenesis in Arizona, USA dryland streams

Jeremy B. Jones, Robert M. Holmes, Stuart G. Fisher, Nancy Grimm, Dena M. Greene

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Methanogenesis was studied in five streams of central and southern Arizona by examining the distribution of methane in interstitial water and evasion of methane in three subsystems (hyporheic, parafluvial and bank sediments). In Sycamore Creek, the primary study site (studied during summer and early autumn), methane content of interstitial water exhibited a distinct spatial pattern. In hyporheic (sediments beneath the wetted channel) and parfluvial zones (active channel sediments lateral to the wetted channel), which were well oxygenated due to high hydrologic exchange with the surface stream and had little particulate organic matter (POM), interstitial methane concentration averaged only 0.03 mgCH4-C/L. Bank sediments (interface between the active channel and riparian zone), in contrast, which were typically vegetated, had high POM, low hydrologic exchange and concomitantly low dissolved oxygen levels, had interstitial concentration averaging 1.5 mgCH4-C/L. Methane emission from Sycamore Creek, similar to methane concentration, averaged only 3.7 mgCH4-C·m-2·d-1 from hyporheic and parafluvial zones as opposed to 170 mgCH4-C·m-2·d-1 from anoxic bank sediments. Methane in four additional streams sampled (one sampling date during late winter) was low and exhibited little spatial variation most likely due to cooler stream temperatures. Interstitial methane in parafluvial and bank sediments of all four streams ranged from only 0.005 to 0.1 mgCH4-C/L. Similarly methane evasion was also low from these streams varying from 0 to 5.7 mgCH4-C·m-2·d-1. The effects of organic matter and temperature on methanogenesis were further examined by experimentally manipulating POM and temperature in stoppered flasks filled with hyporheic sediments and stream water. Methane production significantly increased with all independent variables. Methane production is greatest in bank sediments that are relatively isolated hydrologically and lowest in hyporheic and parafluvial sediments that are interactive with the surface stream.

Original languageEnglish (US)
Pages (from-to)155-173
Number of pages19
JournalBiogeochemistry
Volume31
Issue number3
DOIs
StatePublished - Dec 1995

Fingerprint

Methane
methanogenesis
methane
Sediments
sediment
Biological materials
particulate organic matter
Water
porewater
temperature
riparian zone
Dissolved oxygen
Temperature
dissolved oxygen
spatial variation
autumn
Sampling
organic matter

Keywords

  • arid-lands
  • hydrologic exchange
  • methane
  • methanogenesis
  • Sonoran Desert
  • streams

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences (miscellaneous)
  • Water Science and Technology
  • Environmental Chemistry
  • Earth-Surface Processes

Cite this

Jones, J. B., Holmes, R. M., Fisher, S. G., Grimm, N., & Greene, D. M. (1995). Methanogenesis in Arizona, USA dryland streams. Biogeochemistry, 31(3), 155-173. https://doi.org/10.1007/BF00004047

Methanogenesis in Arizona, USA dryland streams. / Jones, Jeremy B.; Holmes, Robert M.; Fisher, Stuart G.; Grimm, Nancy; Greene, Dena M.

In: Biogeochemistry, Vol. 31, No. 3, 12.1995, p. 155-173.

Research output: Contribution to journalArticle

Jones, JB, Holmes, RM, Fisher, SG, Grimm, N & Greene, DM 1995, 'Methanogenesis in Arizona, USA dryland streams', Biogeochemistry, vol. 31, no. 3, pp. 155-173. https://doi.org/10.1007/BF00004047
Jones JB, Holmes RM, Fisher SG, Grimm N, Greene DM. Methanogenesis in Arizona, USA dryland streams. Biogeochemistry. 1995 Dec;31(3):155-173. https://doi.org/10.1007/BF00004047
Jones, Jeremy B. ; Holmes, Robert M. ; Fisher, Stuart G. ; Grimm, Nancy ; Greene, Dena M. / Methanogenesis in Arizona, USA dryland streams. In: Biogeochemistry. 1995 ; Vol. 31, No. 3. pp. 155-173.
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abstract = "Methanogenesis was studied in five streams of central and southern Arizona by examining the distribution of methane in interstitial water and evasion of methane in three subsystems (hyporheic, parafluvial and bank sediments). In Sycamore Creek, the primary study site (studied during summer and early autumn), methane content of interstitial water exhibited a distinct spatial pattern. In hyporheic (sediments beneath the wetted channel) and parfluvial zones (active channel sediments lateral to the wetted channel), which were well oxygenated due to high hydrologic exchange with the surface stream and had little particulate organic matter (POM), interstitial methane concentration averaged only 0.03 mgCH4-C/L. Bank sediments (interface between the active channel and riparian zone), in contrast, which were typically vegetated, had high POM, low hydrologic exchange and concomitantly low dissolved oxygen levels, had interstitial concentration averaging 1.5 mgCH4-C/L. Methane emission from Sycamore Creek, similar to methane concentration, averaged only 3.7 mgCH4-C·m-2·d-1 from hyporheic and parafluvial zones as opposed to 170 mgCH4-C·m-2·d-1 from anoxic bank sediments. Methane in four additional streams sampled (one sampling date during late winter) was low and exhibited little spatial variation most likely due to cooler stream temperatures. Interstitial methane in parafluvial and bank sediments of all four streams ranged from only 0.005 to 0.1 mgCH4-C/L. Similarly methane evasion was also low from these streams varying from 0 to 5.7 mgCH4-C·m-2·d-1. The effects of organic matter and temperature on methanogenesis were further examined by experimentally manipulating POM and temperature in stoppered flasks filled with hyporheic sediments and stream water. Methane production significantly increased with all independent variables. Methane production is greatest in bank sediments that are relatively isolated hydrologically and lowest in hyporheic and parafluvial sediments that are interactive with the surface stream.",
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