Publisher's Synopsis
Excerpt from Estimation of Needle Populations on Young, Open-Grown Douglas-Fir by Regression and Life Table Analysis
Five open-grown, normal - appearing trees, ranging from 1. 5 to 20 feet to 6. 1 m) tall were selected for foliage analysis at each locality. Each tree was cut and measured for height, age, stem diameter at ground level, width of crown at the widest point, and number of limbs. Starting at the bottom of the tree and working spirally up the stem, every fourth branch (nodal and internodal) was removed on trees taller than 2 feet (0. 6 m) and measured for green weight, number of tips (fig. And foliated area. 1/ Every branch was taken on trees 2 feet (0. 6 m) or less tall.
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