Journal of Food, Agriculture and Environment

Comparison of afforestation terrace length measurement methods in Turkey

Author(s):

Kayhan Menemencıoglu

Recieved Date: 2013-01-11, Accepted Date: 2013-04-29

Abstract:

Turkey has a large area of bare lands suitable for afforestation using terraces that are constructed parallel to contours. Terrace lengths are the unit of payment for contractors and traditionally a pair of dividers has been widely used to measure the lengths of terraces. In this study, we propose a better way to measure the lengths of terraces was investigated. For this reason, a total of 107 afforestation terrace lengths were measured using handheld Global Positioning System (GPS), steel tape-line and pair of dividers. The accuracy of measurements performed by these three equipment were evaluated by considering four factors: (a) length measurement method; (b) terrace length effects; (c) the effects of terrace shapes (brokenness of terraces were grouped in three as least, moderate and most); and (d) time spent for measurement (for each method). The data were analyzed using ANOVA, Pearson correlation analysis and Duncan multiple comparison analysis. The results demonstrated that measuring the lengths with handheld GPS on bare forest lands took less time and it was achieved by a single worker with mean error (3-5% less), comparing with other equipments. It is concluded that using handheld GPS provides a little less but practical solutions to problem of measuring the afforestation terrace lengths in forestry.

Keywords:

Afforestation terrace, a pair of dividers, handheld GPS, horizontal length measurement, steel tape-line, Turkey

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 2
Category: Environment
Pages: 1407-1412

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