Outlines of forestry; by Houston Edwin James 1847-1914

Author:Houston, Edwin James, 1847-1914. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Forests and forestry
Publisher: Philadelphia, J. B. Lippincott company
Published: 1893-03-25T05:00:00+00:00

Generally, the air of the forest is cooler and damper in summer than the air over the open fields in the same district.

1st. Because the air of the forest is shielded from the direct rays of the sun.

2d. Because the air is chilled by evaporation from the moister ground.

A large tract of forest in any section of country tends to prevent marked changes in its climate, as compared with those that occur in the same region over the open fields.

1. By permitting the wooded area to more thoroughly absorb the sun's heat on account of the greater surface it presents.

2. By keeping the air moister and, therefore, better able to absorb the sun's heat.

3. By acting as a screen to the land to the leeward of a cold wind.

4. By preventing the frost from penetrating the ground to too great a depth before protected by a covering of snow.

Geikie, in his " Text-Book of Geology," * in

* Keprinted, by permission, from " Text-Book of Geology," by Archibald Geikie, LL.D., F.B.S. London: Macmillan & Co., 1882. Pp. 971.

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