Abiotic controls and temporal variability of river metabolism: multiyear analyses of Mississippi and Chattahoochee River data
13. Climate action
15. Life on land
01 natural sciences
6. Clean water
0105 earth and related environmental sciences
DOI:
10.1899/13-018.1
Publication Date:
2013-08-27T13:37:15Z
AUTHORS (6)
ABSTRACT
AbstractWhole-ecosystem metabolism is an important indicator of the role of organic matter, C cycling, and trophic structure in rivers. Ecosystem metabolism is well studied in small streams, but less is known about metabolism in large rivers. We estimated daily whole-ecosystem metabolism over 2 y for 1 site each at the Mississippi and Chattahoochee Rivers in the USA to understand factors influencing temporal patterns of ecosystem metabolism. We estimated rates of gross primary production (GPP), community respiration (CR), and net ecosystem production (NEP) with a curve-fitting approach with publicly available discharge (Q), dissolved O2, temperature, and photosynthetically active radiation (PAR) data. Models were run for week-long blocks, and power analyses suggested that rates should be established at least once for each 10-wk period throughout the year to characterize annual rates of metabolism accurately in these 2 rivers. We analyzed weekly rates averaged over 10-wk periods with Spearman rank correlat...
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (57)
CITATIONS (64)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....