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https://hdl.handle.net/11681/6548| Title: | Investigation of military construction in Arctic and Subarctic regions : trees of interior Alaska their significance as soil and permafrost indicators |
| Authors: | United States. Army. Corps of Engineers. St. Paul District. Stoeckeler, E. G. |
| Keywords: | Trees Botany Vegetation Vegation patterns Permafrost Permafrost distribution Permafrost indicators Aerial photography Photointerpretation Soils Soil texture Groundwater |
| Publisher: | Arctic Construction and Frost Effects Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Technical report (Arctic Construction and Frost Effects Laboratory (U.S.)) ; no. 39. |
| Description: | Technical Report Summary: The purpose of this paper is to aid soil survey crews in the field. It is intended that information contained in this handbook be useful both from the standpoint of agricultural and engineering surveys. Identification of the eight major species which attain tree size in the Permafrost Zone in Alaska is made easy by actual photographs illustrating tree form, branching habits, bark, leaves, and fruit. To aid aerial observers and photo interpreters, a low altitude oblique and a stereopair of each species are included, along with a verbal description of the tree's salient features and airphoto pattern. All vertical aerial photographs, taken in summer with panchromatic film in the immediate vicinity of Fairbanks, Alaska, were flown with a twelve-inch focal length lens at an altitude of 4,500 feet above mean terrain, giving a scale of 1:4,800, or one inch equals four hundred feet. A brief discussion of the relative value of each of the eight species as an indicator of soil texture, ground water, and permafrost conditions is included. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/6548 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ACFEL-Technical-Report-39.pdf | 14.42 MB | Adobe PDF |  View/Open |