Relations Between Soil Compaction And Plantation Growth Of A 8 Years-Old Lobolly Pine Second Rotation, In Misiones, Argentine.

Fernández,; Antonio, Roberto; Donagh, Mac; Miguel, Patricio; Lupi,; María, Ana; Martiarena, Rodolfo; Cortez, P.

doi:10.13031/2013.9224

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…The soil cores of known volume were placed in a 105 o C oven and dried for a minimum of 48 hours. Bulk density was calculated by dividing dry weight by the sample volume [8,9,20]. Each treatment was replicated five times.…”

Section: Experimental Design and Data Collectionmentioning

confidence: 99%

Impact of skidding operations on soil physical properties in southern Italy

Proto¹,

Macrì²,

Sorgona³

et al. 2016

ces

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Skidding by heavy forestry machinery can affect soil physical properties. We assessed the effects of ground-based skidding on soil bulk density and total porosity in a southern Italian forest. Treatments included a combination of four levels of traffic intensity (1, 5, 10, and 15 passes) of a John Deere 548H rubber skidder and two levels of slope (< 20% and > 20%). Further, soil bulk density and total porosity were evaluated at different distances from the track (BT). The results 1096 A.R. Proto et al. indicated soil bulk density increased with traffic frequency, while soil total porosity decreased. Further, slope steepness did not affect soil physical properties but interacted with the number of passes to affect soil total porosity. The critical value for this parameter occurred after 15 passes on a < 20% slope and six machine passes on a > 20% slope. The statistically significant impacts of the skidder on soil physical properties were evident at distances of up to 2 m from each side of the skidding trail. The latter finding suggests special attention should be taken during the skidding operations to minimize the adverse effects of groundbased skidding on soil physical properties.

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Section: Experimental Design and Data Collectionmentioning

confidence: 99%

Impact of skidding operations on soil physical properties in southern Italy

Proto¹,

Macrì²,

Sorgona³

et al. 2016

ces

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show abstract

“…With regards to variances being unequal, the results from comparison of average soil bulk density in different traffic levels with the use of Dunnett's T3 test showed that there were significant differences in average bulk density between different traffic levels and control (p<0.05). The results reported by other researchers showed that soil bulk density increased by increase in traffic levels (Startsev and McNabb 2001;Fernandez 2002;Carter and Shaw 2002;Buckley et al 2003;Raper 2005;Chan et al 2006;Makineci et al 2007;Demir et al 2007;).…”

Section: Soil Bulk Densitymentioning

confidence: 84%

Soil disturbances due to machinery traffic on steep skid trail in the north mountainous forest of Iran

Naghdi

Bagheri

Basiri³

2010

Journal of Forestry Research

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A study was conducted to investigate the effects of skid trail slope and traffic levels on soil disturbances at two soil depths (0−10 and 10−20 cm). The treatments were set at four traffic levels (2, 7, 12 and 20), two slope classes (<20% and >20%) and two soil depths (0−10 and 10−20 cm). Results show that skidder traffic, longitudinal slope and soil depth have significant effect on soil bulk density in skid trail. Comparison of average soil bulk density in different traffic levels shows that there are significant differences in average bulk density between different traffic levels and control (p<0.05). The average bulk densities in different slopes and soil depths are significantly increased with increase in traffic levels, maximized at 12 passes (p<0.05), but there are no significant differences between 12 and 20 passes. The interaction effects between traffic and soil depth are significant (F0.05,3=0.109, p<0.001). For all traffic treatments, there are significant differences in soil moisture content between the two slope classes and the two depths (p<0.001). However, the interaction effects between traffic levels and slope classes are not significant (p >0.05), although skidder traffic and slope affected soil moisture content.

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“…Bulk density was calculated as the dry weight/volume ratio. We used 8 single samples from horizon A and BA and 5 samples from horizon B [37].…”

Section: Soil Samplingmentioning

confidence: 99%

Effect of Thinning and Harvest Type on Storage and Losses of Phosphorous inPinus taedaL. Plantations in Subtropical Argentina

Martiarena¹,

Frangi

Pinazo³

et al. 2011

International Journal of Forestry Research

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The aim of this study was to evaluate the effect of thinning intensity and different harvest types on ecosystem P conservation in 20-year-oldPinus taedaplantation ecosystems at Misiones province, Argentina. The plantation was established in 1985, thinned at three intensities—0, 33, and 66% of basal area of control plots removed by thinning—and harvested in 2005. The nutrient content at harvest was determined for tree, shrub, and herb layers, the forest floor and upper mineral soil. Two harvest types were simulated: stem only and whole tree. Total P content was 56.8, 46.8, and 38.6 kg· ha−1for 0, 33, and 66% thinning, respectively. Total P exported by harvest was different among treatments, the highest at 0% thinning treatment. Phosphorus stability index values indicated that the P most conservative management option is 66% thinning, harvest of stem only and retention of forest floor, understory, and harvest residues.

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Relations Between Soil Compaction And Plantation Growth Of A 8 Years-Old Lobolly Pine Second Rotation, In Misiones, Argentine.

Cited by 3 publications

References 11 publications

Impact of skidding operations on soil physical properties in southern Italy

Impact of skidding operations on soil physical properties in southern Italy

Soil disturbances due to machinery traffic on steep skid trail in the north mountainous forest of Iran

Effect of Thinning and Harvest Type on Storage and Losses of Phosphorous inPinus taedaL. Plantations in Subtropical Argentina

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