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Water Use Trade-Offs and Optimal Adaptations to Pulse-Driven Arid Ecosystems

Citation

James R Ehleringer, and Susanne Schwinning, Water Use Trade-Offs and Optimal Adaptations to Pulse-Driven Arid Ecosystems: .

Summary

1 We introduce a hydraulic soil-plant model with water uptake from two soil layers; one a pulse-dominated shallow soil layer, the other a deeper soil layer with continuous, but generally less than saturated soil moisture. Water uptake is linked to photosynthetic carbon assimilation through a photosynthesis model for C3 plants. 2 A genetic algorithm is used to identify character suites that maximize photosynthetic carbon gain for plants that experience a particular soil moisture pattern. The character suites include allocation fraction to stem, leaves and shallow root, stem capacitance and stem water storage capacity, maximal leaf conductance and sensitivity of leaf conductance to plant water potential, and a critical soil water potential [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS export <br> On - Tue May 10 10:59:29 CDT 2011

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Title Citation Water Use Trade-Offs and Optimal Adaptations to Pulse-Driven Arid Ecosystems

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