INVESTIGATION OF THE BEST METHOD OF VOLUME ESTIMATION FOR GUILAN FORESTS (CASE STUDY: DISTRICT ONE OF NAV ASALEM)

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POURSHAKOURI ALAHDEH F.; HASANZAD NAVROUDI I.

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Journal: Year:2008 | Volume:20 | Issue:4 (77 IN NATURAL RESOURCES) Page(s): 24-31

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Title

INVESTIGATION OF THE BEST METHOD OF VOLUME ESTIMATION FOR GUILAN FORESTS (CASE STUDY: DISTRICT ONE OF NAV ASALEM)

Author(s)

POURSHAKOURI ALAHDEH F. | HASANZAD NAVROUDI I. | Issue Writer Certificate

Keywords

VOLUME ESTIMETIONQ3

REAL VOLUMEQ3

TABLES VOLUMEQ3

VOLUME ESTIMATION FORMULASQ3

DISTRICT ONE OF NAV ASALEMQ3

Abstract

Investigation of the methods of volume estimation and determination of appropriate method in Guilan forests in order to investigation a appropriate method for estimation of volume, 60 trees were randomly selected in 3 parcels of NAV Asalem district. The industrial, cordwood and stump volumes were calculated by Smalian’s, Huber and sylander formulas respectively and REAL VOLUME was calculated from the sum of them. Volumes of the sample trees were been obtained from the simple formula, Pressler’s formula, using the form factor, the local volume tables (Chuca) and form class tables too. The normality test showed that data were not normal, so data get normal using Ln calculation on data. t-test paired is done on REAL VOLUME with other five volumes and results showed that difference between the REAL VOLUME with both simple formula and local table volumes were not significant, but it had significant difference with the three other volumes (Pressler, form factor and form class tables). Total results showed that volume obtained by local volume table’s estimates volume with more correction than other methods.

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APA: Copy

POURSHAKOURI ALAHDEH, F., & HASANZAD NAVROUDI, I.. (2008). INVESTIGATION OF THE BEST METHOD OF VOLUME ESTIMATION FOR GUILAN FORESTS (CASE STUDY: DISTRICT ONE OF NAV ASALEM). PAJOUHESH-VA-SAZANDEGI, 20(4 (77 IN NATURAL RESOURCES)), 24-31. SID. https://sid.ir/paper/19872/en

Vancouver: Copy

POURSHAKOURI ALAHDEH F., HASANZAD NAVROUDI I.. INVESTIGATION OF THE BEST METHOD OF VOLUME ESTIMATION FOR GUILAN FORESTS (CASE STUDY: DISTRICT ONE OF NAV ASALEM). PAJOUHESH-VA-SAZANDEGI[Internet]. 2008;20(4 (77 IN NATURAL RESOURCES)):24-31. Available from: https://sid.ir/paper/19872/en

IEEE: Copy

F. POURSHAKOURI ALAHDEH, and I. HASANZAD NAVROUDI, “INVESTIGATION OF THE BEST METHOD OF VOLUME ESTIMATION FOR GUILAN FORESTS (CASE STUDY: DISTRICT ONE OF NAV ASALEM),” PAJOUHESH-VA-SAZANDEGI, vol. 20, no. 4 (77 IN NATURAL RESOURCES), pp. 24–31, 2008, [Online]. Available: https://sid.ir/paper/19872/en

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