The effect of water status and soil fertility on the C-isotope signature in Pinus radiata
The efficiency with which trees use water is a major determinant of growth under water-limited conditions. We investigated whether increased access to water and nutrients alters water-use efficiency in Pinus radiata D. Don. Intrinsic transpiration efficiency, defined here as the ratio of CO2 assimilated and water transpired at a given vapor pressure deficit, is determined by the difference between ambient atmospheric CO2 concentration (C(a)) and leaf intercellular CO2 concentration (C(i)). The...[Show more]
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