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Sensitivity of mesquite shrubland CO2 exchange to precipitation in contrasting landscape settings

Citation

Potts, Daniel L, Scott, Russell L, Cable, Jessica M, Huxman, Travis E, and Williams, David G, Sensitivity of mesquite shrubland CO2 exchange to precipitation in contrasting landscape settings: .

Summary

In semiarid ecosystems, physiography (landscape setting) may interact with woody-plant and soil microbe communities to constrain seasonal exchanges of material and energy at the ecosystem scale. In an upland and riparian shrubland, we examined the seasonally dynamic linkage between ecosystem CO2 exchange, woody-plant water status and photosynthesis, and soil respiration responses to summer rainfall. At each site, we compared tower-based measurements of net ecosystem CO2 exchange (NEE) with ecophysiological measurements among velvet mesquite (Prosopis velutina Woot.) in three size classes and soil respiration in sub-canopy and inter-canopy micro-sites. Monsoonal rainfall influenced a greater shift in the magnitude of ecosystem CO2 assimilation [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:12:57 MDT 2012

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Title Citation Sensitivity of mesquite shrubland CO2 exchange to precipitation in contrasting landscape settings

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