A Short Manual of Forest Management
A Short Manual of Forest Management
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In our eReader you can find the full English version of the book. Read A Short Manual of Forest Management 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 Short Manual of Forest Management
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Suppose that we are working a forest on a twenty year rotation, and for that purpose have divided the ground up into twenty equal areas. We can represent our growing stock diagrammatically as in the figure on page 9. The horizontal co-ordinate represents the area divided into 20 equal parts, and the vertical co-ordinate re- presents the volume of timber produced by the growth of the forest year by year. We have then 20 crops of equal area forming a regular succession of ages. The first area, on... the left-hand side, is i year old, the second 2 years old, the third 3 years old, and so on up to the twentieth area which is 20 years old. The volume of the growing stock or wood-capital is represented by the area of the triangle ABC, and the yield, which is equal to the annual increment over the whole area, is represented by the rectangle AEFB, which is formed of 20 years' accumulated growth on one-twentieth of the area, and is equal to' the sum of the annual increments (the portions shaded along the diagonal AC) for one II] FIRST PRINCIPLES year over the whole twenty sub-divisions of the area.
What to read after A Short Manual of Forest Management?
You can find similar books in the "Read Also" column, or choose other free books by H Henry Jackson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Suppose that we are working a forest on a twenty year rotation, and for that purpose have divided the ground up into twenty equal areas. We can represent our growing stock diagrammatically as in the figure on page 9. The horizontal co-ordinate represents the area divided into 20 equal parts, and the vertical co-ordinate re- presents the volume of timber produced by the growth of the forest year by year. We have then 20 crops of equal area forming a regular succession of ages. The first area, on... the left-hand side, is i year old, the second 2 years old, the third 3 years old, and so on up to the twentieth area which is 20 years old. The volume of the growing stock or wood-capital is represented by the area of the triangle ABC, and the yield, which is equal to the annual increment over the whole area, is represented by the rectangle AEFB, which is formed of 20 years' accumulated growth on one-twentieth of the area, and is equal to' the sum of the annual increments (the portions shaded along the diagonal AC) for one II] FIRST PRINCIPLES year over the whole twenty sub-divisions of the area.
What to read after A Short Manual of Forest Management?
You can find similar books in the "Read Also" column, or choose other free books by H Henry Jackson to read onlineMoreLess
Read book A Short Manual of Forest Management for free
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