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3/6/2013 <br />7 <br />Plant Surveys <br />Characterizing Light <br />Illuminance <br />–Amount of light incident per unit area <br />–SI unit: lux <br />Luminance <br />–Intensity of light per <br />unit area <br />–SI unit: candela/m² <br />Collected data on both at 29 positions in <br />each site <br />PDF created with pdfFactory trial version www.pdffactory.com 12