A Novel Method to Simultaneously Measure Leaf Gas Exchange and Water Content
نویسندگان
چکیده
Understanding the relationship between plant water status and productivity mortality is required to effectively quantify predict effects of drought on plants. Plant closely linked leaf content that may be estimated using remote sensing technologies. Here, we used an inexpensive miniature hyperspectral spectrometer in 1550–1950 nm wavelength domain measure changes silver birch (Betula pendula Roth) combined with gas exchange measurements at a sub-minute time resolution, under increasing vapor pressure deficit, CO2 concentrations, light intensity within measurement cuvette; also developed novel methodology for calibrating reflectance individual leaves. Based 1550 nm, linear regression modeling explained 98–99% variation content, root mean square error 0.31–0.43 g cm−2. The prediction accuracy model represents c. ten-fold improvement compared previous studies have destructive sampling several This allows study interlinkages transpiration, assimilation high resolution will increase understanding movement plants atmosphere.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2022
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs14153693