Zon, Raphael, 1874-1956, Graves, Henry Solon, 1871-1951 · Washington, D.C. : U.S. Dept. of Agriculture, Forest Service · leaf 20
light decreases with theincrease in latitude, and the light limit of a species is reached whenthe intensity of the total daylight becomes equal to the trees mini-mum light requirement. With increase in altitude, however, diffusedlight decreases, but direct sunlight increases. With an increase inthe… … 60°L#r/TUD£ 3QOO 6000 9O00 ALTITUDE /zaoa1 AB, light intensity ; BC, altitude ; xy, curveof the total light intensity ; ab, curve ofthe light requirements of trees. (AfterWiesner.) . AB, total light intensity; BC, lati-tude ; ax, total light intensity; bx,minimum light requirement of aspecies; x,…
Plants Effect of light on · Trees Growth · Light Effect on trees · Tree growth
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