A Primer of Forestry
A Primer of Forestry
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In our eReader you can find the full English version of the book. Read A Primer of Forestry Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Primer of Forestry
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IMPERFECT NATURAL PRUNING ON A WHITE PINE THAT STOOD TOO MUCH ALONE IN EARLY YOUTH. MILFORD, PA. NATURAL PRUNING. 59 n height above the ground. (See figs. 52-5G and PI. XXX. ) The trunks of trees grown in the open, where even the lower limbs have abundance of light, are branched either quite to the ground or to within a short distance of it. But in the forest not only are the lower side branches continually dying for want of light, but the tree rids itself of them after they are dead and so fre...es its trunk from them en- tirely. When a branch dies the annual layer of new wood is no longer deposited upon it. Consequently the dead branch, where it is inserted in the tree, makes a little hole in the first coat of living tissue formed over the live wood after its death. The edges of this hole make a sort of collar about the base Of the dead branch, and as a new layer is added each year they press it more and more tightly. So strong does this compression of the living wood become that at last what remains of the dead tissue has so little strength that the branch is broken off by an ice storm or by the wind, or even falls of its own weight.
What to read after A Primer of Forestry?
You can find similar books in the "Read Also" column, or choose other free books by Pinchot, Gifford, 1865-1946 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
IMPERFECT NATURAL PRUNING ON A WHITE PINE THAT STOOD TOO MUCH ALONE IN EARLY YOUTH. MILFORD, PA. NATURAL PRUNING. 59 n height above the ground. (See figs. 52-5G and PI. XXX. ) The trunks of trees grown in the open, where even the lower limbs have abundance of light, are branched either quite to the ground or to within a short distance of it. But in the forest not only are the lower side branches continually dying for want of light, but the tree rids itself of them after they are dead and so fre...es its trunk from them en- tirely. When a branch dies the annual layer of new wood is no longer deposited upon it. Consequently the dead branch, where it is inserted in the tree, makes a little hole in the first coat of living tissue formed over the live wood after its death. The edges of this hole make a sort of collar about the base Of the dead branch, and as a new layer is added each year they press it more and more tightly. So strong does this compression of the living wood become that at last what remains of the dead tissue has so little strength that the branch is broken off by an ice storm or by the wind, or even falls of its own weight.
What to read after A Primer of Forestry?
You can find similar books in the "Read Also" column, or choose other free books by Pinchot, Gifford, 1865-1946 to read onlineMoreLess
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