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| Creator | Title | Description | Subject | Date | ||
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Ehleringer, James R. | Intra- and interspecific variation for summer precipitation use in pinyon-juniper woodlands | In the arid southwest of North America, winter precipitation penetrates to deep soil layers, whereas summer"monsoon" precipitation generally wets only surface layers. Use of these spatially separated water sources was determined for three dominant tree species of the pinyon-juniper ecosystem at six ... | D/H ratios; Juniperus osteosperma; Pinus edulis; pinyon-juniper ecosystem; plant water sources; precipitation use; Quercus gambelii; roots; Photosynthetic gas exchange; Monsoon | 2000 |
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