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Publication Information

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Title: Processing data from soil assessment surveys with the computer program SOILS.

Author: Hazard, John W.; Snellgrove, Jeralyn; Geist, J. Michael.;

Date: 1985

Source: Gen. Tech. Rep. PNW-GTR-179. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 26 p

Publication Series: General Technical Report (GTR)

Description: Program SOILS processes data from soil assessment surveys following a design adopted by the Pacific Northwest Region of the USDA Forest Service. It accepts measurements from line transects and associated soil subsamples and generates estimates of the percentages of the sampled area falling in each soil condition class. Total disturbance is calculated by combining certain detrimental soil condition classes. Variances and confidence intervals of the percentage of each class are computed. Summary or preliminary estimates may be inserted into the program for computing sample sizes to help in planning future surveys.

A summary of the soil survey design for the Pacific Northwest Region, the estimation procedures, and the sample size calculation procedures are also provided.

Keywords: Soil surveys, computer programs/programming, sampling designs

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

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Citation:


Hazard, John W.; Snellgrove, Jeralyn; Geist, J. Michael. 1985. Processing data from soil assessment surveys with the computer program SOILS. Gen. Tech. Rep. PNW-GTR-179. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 26 p

 


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