Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density
The objective of this study was to compare forest soil bulk density values obtained through conventional sampling methods such as the volumetric ring (VR: diameter 5 cm, length 10 cm) and paraffin sealed clod (PSC), with a variation of the VR, where rectangular boxes (RB) of four different dimension...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
University of Zagreb, Faculty of Forestry
2018-01-01
|
Series: | Croatian Journal of Forest Engineering |
Online Access: | https://hrcak.srce.hr/file/300556 |
id |
doaj-5543c5f9e57f46dd8606db759e3906f8 |
---|---|
record_format |
Article |
spelling |
doaj-5543c5f9e57f46dd8606db759e3906f82020-11-25T01:58:53ZengUniversity of Zagreb, Faculty of ForestryCroatian Journal of Forest Engineering1845-57191848-96722018-01-01392247254204193Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk DensityRamin Naghdi0Eric R. Labelle1Petros A. Tsioras2Ali Salehi3Ahmad Solgi4Department of Forestry Faculty of Natural Resources University of Guilan P.O. Box 1144 Sowmeh Sara Guilan IRANDepartment of Ecology and Ecosystem Management Technische Universität München Hans-Carl-Von-Carlowitz-Platz 2 85354 Freising GERMANYLaboratory of Forest Utilization Faculty of Forestry and Natural Environment Aristotle University of Thessaloniki GR-54124 Thessaloniki GREECEDepartment of Forestry Faculty of Natural Resources University of Guilan P.O. Box 1144 Sowmeh Sara Guilan IRANDepartment of Forestry Faculty of Natural Resources University of Guilan P.O. Box 1144 Sowmeh Sara Guilan IRANThe objective of this study was to compare forest soil bulk density values obtained through conventional sampling methods such as the volumetric ring (VR: diameter 5 cm, length 10 cm) and paraffin sealed clod (PSC), with a variation of the VR, where rectangular boxes (RB) of four different dimensions were used. Sampling transects were established on a machine operating trail located in a beech (Fagus orientalis Lipsky) stand in Northern Iran. At each transect, three soil samples were collected at three different locations. Samples from different methods were spaced by a 50 cm distance to avoid direct interactions. The soil class of our study area was Combisols according to the WRB classification with a clay texture. Soil bulk density differed significantly between the three sampling methods. The lowest values were obtained with the RB (average 1.25 g cm-3), followed by the VR (average 1.40 g cm-3), and lastly the PSC (average 1.52 g cm-3). The values obtained with four variations of the RB method ranged from 1.22 to 1.28 g cm-3 and were not found significantly different. When soil bulk density was calculated after the removal of the weight and volume of roots included in the samples, the values were determined to be higher than before but with the same range of magnitude. The lowest coefficient of variation was found for RB4 (CV=2.3%), while the highest values were observed for VR and RB1 (CV=5.7%).https://hrcak.srce.hr/file/300556 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ramin Naghdi Eric R. Labelle Petros A. Tsioras Ali Salehi Ahmad Solgi |
spellingShingle |
Ramin Naghdi Eric R. Labelle Petros A. Tsioras Ali Salehi Ahmad Solgi Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density Croatian Journal of Forest Engineering |
author_facet |
Ramin Naghdi Eric R. Labelle Petros A. Tsioras Ali Salehi Ahmad Solgi |
author_sort |
Ramin Naghdi |
title |
Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density |
title_short |
Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density |
title_full |
Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density |
title_fullStr |
Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density |
title_full_unstemmed |
Comparison of Sampling Methods Used to Evaluate Forest Soil Bulk Density |
title_sort |
comparison of sampling methods used to evaluate forest soil bulk density |
publisher |
University of Zagreb, Faculty of Forestry |
series |
Croatian Journal of Forest Engineering |
issn |
1845-5719 1848-9672 |
publishDate |
2018-01-01 |
description |
The objective of this study was to compare forest soil bulk density values obtained through conventional sampling methods such as the volumetric ring (VR: diameter 5 cm, length 10 cm) and paraffin sealed clod (PSC), with a variation of the VR, where rectangular boxes (RB) of four different dimensions were used. Sampling transects were established on a machine operating trail located in a beech (Fagus orientalis Lipsky) stand in Northern Iran. At each transect, three soil samples were collected at three different locations. Samples from different methods were spaced by a 50 cm distance to avoid direct interactions. The soil class of our study area was Combisols according to the WRB classification with a clay texture. Soil bulk density differed significantly between the three sampling methods. The lowest values were obtained with the RB (average 1.25 g cm-3), followed by the VR (average 1.40 g cm-3), and lastly the PSC (average 1.52 g cm-3). The values obtained with four variations of the RB method ranged from 1.22 to 1.28 g cm-3 and were not found significantly different. When soil bulk density was calculated after the removal of the weight and volume of roots included in the samples, the values were determined to be higher than before but with the same range of magnitude. The lowest coefficient of variation was found for RB4 (CV=2.3%), while the highest values were observed for VR and RB1 (CV=5.7%). |
url |
https://hrcak.srce.hr/file/300556 |
work_keys_str_mv |
AT raminnaghdi comparisonofsamplingmethodsusedtoevaluateforestsoilbulkdensity AT ericrlabelle comparisonofsamplingmethodsusedtoevaluateforestsoilbulkdensity AT petrosatsioras comparisonofsamplingmethodsusedtoevaluateforestsoilbulkdensity AT alisalehi comparisonofsamplingmethodsusedtoevaluateforestsoilbulkdensity AT ahmadsolgi comparisonofsamplingmethodsusedtoevaluateforestsoilbulkdensity |
_version_ |
1724967457305657344 |