Changes of some physical properties of a clay soil following passage of rubber- and metal-tracked tractors

Marsili, A.; Servadio, P.; Pagliai, M.; Vignozzi, Nadia

doi:10.1016/s0167-1987(98)00169-x

Cited by 69 publications

(54 citation statements)

References 15 publications

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“…A condutividade hidráulica saturada sofreu redução em resposta à compactação do solo, provocada pelo cultivo intensivo. Este comportamento pode estar relacionado à reorganização do sistema poroso, ou seja, da distribuição do diâmetro e não continuidade vertical dos poros (Marsili et al, 1998).…”

Section: Resultsunclassified

Qualidade física de Latossolo Amarelo de tabuleiros costeiros em diferentes sistemas de manejo da cana-de-açúcar

Vasconcelos

Souza

Cantalice

et al. 2014

Rev. bras. eng. agríc. ambient.

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R E S U M OOs atributos físicos do solo são indicativos imprescindíveis quando se pretende avaliar sistemas de manejo. Objetivouse, nesta pesquisa, estudar as alterações nas propriedades físicas de um Latossolo Amarelo Distrocoeso dos tabuleiros costeiros de Alagoas cultivado com cana-de-açúcar. Foram selecionadas áreas em talhões de produção de cana-deaçúcar. Os tratamentos avaliados corresponderam a área cultivada sob sistema de manejo irrigado (SMI), área sob sistema de manejo fertirrigado com vinhaça (SMFV) e área com aplicação de vinhaça + torta de filtro (SMVT), além de área de mata nativa (MN) com fragmento de mata atlântica, tomada como referência. Avaliaram-se a densidade do solo, porosidade total do solo, diâmetro médio ponderado dos agregados, condutividade hidráulica, carbono orgânico total, grau de compactação nas profundidades de 0-0,20; 0,20-0,40 e 0,40-0,60 m. Os sistemas de manejo cultivados com cana-de-açúcar que receberam adição de resíduos da cana (SMFV + SMVT) apresentaram alterações nas propriedades físicas do solo mais favoráveis ao adequado desenvolvimento desta cultura. Dentre os diferentes sistemas de manejo cultivados com cana-de-açúcar, o que sofreu menor degradação física foi a área sob SMVT, seguido da área sob SMFV. Physical quality of Yellow Oxisol of a coastal plain under different management systems in sugarcane A B S T R A C TThe physical attributes are important indicators to evaluate management systems. The objective of this research was to study alterations in the soil properties of the distrophic cohesive yellow Oxisol of a coastal plain in Alagoas state, Brazil, cultivated with sugarcane. Plots were selected in the following sugarcane-growing areas: area under irrigation management system (IMS), area fertigated with vinasse (FV), and area under application of vinasse + filter cake (V + FC). These management systems were compared to each other and to a control (native forest). The bulk soil density, total porosity, weighted mean diameter of the aggregates, hydraulic conductivity, total organic carbon and compaction degree were evaluated in 0-0.20; 0.20-0.40 e 0.40-0.60 m depths. The results showed that management system that receives residues of the sugarcane presents alterations in the physical properties of soil more adequate for development of sugarcane. Among the evaluated systems, little physical degradation was observed in area with application of vinasse + filter cake followed by area with application of vinasse.Qualidade física de Latossolo Amarelo de tabuleiros costeiros em diferentes sistemas de manejo da cana-de-açúcar

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Section: Resultsunclassified

Qualidade física de Latossolo Amarelo de tabuleiros costeiros em diferentes sistemas de manejo da cana-de-açúcar

Vasconcelos

Souza

Cantalice

et al. 2014

Rev. bras. eng. agríc. ambient.

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“…The increment of bulk density in terms of percentage in SC1 was 3%, 6% and 8% at the one, five and nine traffic frequency, respectively. The significant increase in soil bulk density in SC2 can be interpreted that the movement of a vehicle on the slope causes a high stress, even under the front chain-saw track, which is frequently unloaded as the weight of the vehicle is transferred to the low contact area (Marsili et al 1998). Another reason could be that the average speed of machines was lower compared to SC1.…”

Section: Resultsmentioning

confidence: 99%

Ground based operation effects on soil disturbance by steel tracked skidder in a steep slope of forest

Agherkakli¹,

Najafi²,

Sadeghi³

2010

J. For. Sci.

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ABSTRACT:In this study, the effects of slope and traffic intensity on soil compaction, rutting and forest floor removal was evaluated on a skid trail in the natural forest of north of Iran. Combination of two levels of slope < 20% (SC1) and > 20% (SC2) and three levels of traffic (one, five and nine traffics) were studied. Treatment plots, with three replications, were established on the skid trail prior to skidding. The results of this study showed that all bulk densities were considerably higher in SC2 than in SC1 and average soil bulk densities were measured from 1.07 (g•cm -3 ) to 1.23 (g•cm -3 ) on skid trail and 0.91 (g•cm -3 ) in undisturbed areas. With the increment of traffic, soil compaction increased but there was no significant difference among the three levels of traffic frequency in SC1 whereas it was significant between one and five cycles in SC2. Greatest rut depth was measured as 12 cm at nine traffics in SC2, although increase of traffic density caused deeper rut depth at all slope treatments, but it was higher at the SC2 in comparison to SC1. Litter mass decreased considerably on the skid trail with the increasing in slope and traffic. No important difference has been detected between SC1 and SC2 in terms of Litter mass removal. These results provide clear evidence that soil disturbance on steep trail is intensified. 279Several studies have examined the relationship between soil disturbance and the associated number of loaded machine passes. The majority of previous studies investigated the effects of wheeled skidders on soil disturbance while a few studies assessed the impacts of steel tracked skidders whereas in many forest areas, particularly in steep terrain with large trees and high precipitation rates, these machines are likely to remain the most common type of skidding machine used.In mountainous and steep areas, the terrain slope is an important factor that affects operational efficiency, costs and erosion. It may also affect the soil compaction, so in planning forest operations and aligning skid trails the terrain slope may be an important consideration for protecting soil resources (Jamshidi et al. 2008).The objectives of this investigation were to (1) assess the soil disturbance after ground based logging by a steel tracked skidder and (2) determine the effects of slope on the soil disturbance in a skid trail. MATERIAL AND METHODSA field study was conducted at a Forestry Experimental Station of Tarbiat Modares University, located in a temperate forest in the north of Iran, between 36°31'56''N and 36°32'11''N latitudes and 51°47'49''E and 51°47'56''E longitudes, in February 2008. The elevation is approximately 650 m a.s.l. with western aspect, while the average annual rainfall of 1,308 mm has been recorded.The natural vegetation is a deciduous forest with dominant species of hornbeam (Carpinus betulus [L.]) and beech (Fagus orientalis Lipsky).Soil samples for detecting the soil texture were collected at ten random points from the top of the 50 cm deep soil profile from an undistu...

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“…Para Marsili et al (1998), o processo de compactação pode ser atribuído tanto à diminuição do espaço poroso entre os agregados, ocorrendo um rearranjamento na matriz do solo, como à ruptura e destruição dos agregados, havendo rearranjamento e orientação das partículas, o que resulta numa massa coesa na matriz do solo.…”

Section: Introductionunclassified

Dependência espacial dos atributos físicos de três classes de solos cultivados com cana-de-açúcar sob colheita mecanizada

Carvalho

Meurer²,

Silva³

et al. 2011

Rev. bras. eng. agríc. ambient.

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R ESU M OObjetivou-se, neste trabalho, avaliar as propriedades físicas de três classes de solo cultivadas com cana-deaçúcar em sistema de colheita mecanizada na região de Mato Grosso do Sul. O local de estudo pertence à Usina Eldorado, Grupo ETH Bioenergia S/A, localizada no município de Rio Brilhante, MS. A amostragem em cada área experimental foi realizada a partir de uma malha, com 180 m de comprimento e 145,6 m de largura, totalizando 90 pontos em forma de grade, com 9 colunas e 10 linhas, onde foram coletadas amostras de estrutura indeformada nas camadas de 0-0,2 m e 0,2-0,4 m de profundidade nas entrelinhas da cultura. Após coleta, as amostras foram processadas para determinação da densidade do solo (DS), porosidade total (PT) e umidade do solo () para interpretação dos dados. A palhada deixada sobre superfície auxiliou na mantença de bom nível de matéria orgânica, corroborando na formação, agregação e estabilidade de poros, impedindo o aumento da densidade. A redução da porosidade total e consecutivo aumento na densidade do solo, principalmente na profundidade de 0,2-0,4 m, indicam compactação nesta camada, justificada pelo intenso tráfego de veículos e ausência de revolvimento do solo. Palavras-chave:Saccharum officinarum, densidade do solo, geoestatística, estabilidade de agregados Physical properties of three classes of soils cultivated with sugarcane in mechanized harvesting A B ST R A C T The aim of this study was to evaluate the physical properties of three soils cultivated with sugarcane mechanized harvest system in the region of Mato Grosso do Sul The study site belongs to the Plant Eldorado, ETH Bioenergy Group S/A, located in Rio Brilhante, MS. The sampling in each experimental area was made from a grid with 180 m long and 145.6 m wide, totaling 90 points in a grid form, with nine columns and 10 rows, where samples were collected in undisturbed layers of 0-0.2 m and 0.2-0.4 m deep in the rows. After collection, samples were processed for determination of soil bulk density (BD), total porosity (TP) and soil moisture () for data interpretation. Crop residues left on surface helped to maintain good level of organic matter, supporting the formation, aggregation and stability of pores, preventing the increase in density. The reduction in total porosity and consecutive increase in density, especially in the 0.2-0.4 m, indicating compaction of this layer, justified by the intense traffic of vehicles and lack of soil disturbance.

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Changes of some physical properties of a clay soil following passage of rubber- and metal-tracked tractors

Cited by 69 publications

References 15 publications

Qualidade física de Latossolo Amarelo de tabuleiros costeiros em diferentes sistemas de manejo da cana-de-açúcar

Qualidade física de Latossolo Amarelo de tabuleiros costeiros em diferentes sistemas de manejo da cana-de-açúcar

Ground based operation effects on soil disturbance by steel tracked skidder in a steep slope of forest

Dependência espacial dos atributos físicos de três classes de solos cultivados com cana-de-açúcar sob colheita mecanizada

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