Soil aggregation and root growth of perennial grasses in a constructed clay minesoil

Stumpf, Lizete; Pauletto, Eloy Antônio; Pinto, Luiz Fernando Spinelli

doi:10.1016/j.still.2016.03.005

Cited by 44 publications

(37 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This depth range zone contained, on average, approximately 47% of the final root biomass in the control plot, 30% in the T2 plot, and 17% in the T3 plot. These results are in accordance with those obtained by Stumpf, Pauletto, and Spinelli Pinto (), who observed a low root growth, below 100 mm (for all the species studied); this is the result of a high soil densification by compression below that level.…”

Section: Resultssupporting

confidence: 93%

Sunflower (Helianthus annuus L.) harvest: Tractor and grain chaser traffic effects on soil compaction and crop yields

et al. 2018

View full text Add to dashboard Cite

Previous studies have defined compaction as an important degradation process of agricultural soils. However, there is very little information (under field conditions) on the effects of tractor and grain chaser traffic during harvest operations on soil cropped for 15 years under no‐till cultivation methods. The aim of this study was to quantify the effects of two different total loads of tractor and grain chaser traffic on soil physical properties and sunflower (Helianthus annuus L.) yields. The treatments included a control plot with no tractor or grain chaser traffic (T1), a plot with tractor and grain chaser traffic with a total load of 275.8 kN (94.35 kN km−1 ha−1; T2), and a plot with tractor and grain chaser traffic with a load of 332.2 kN (123 kN km−1 ha−1; T3). Soil physical properties and sunflower yields were analysed over three growing seasons in the western part of the Pampa region, Argentina. In the topsoil (0 to 200 mm), the results showed that after one pass of T2 and T3, infiltration decreased significantly compared with that in T1; a similar trend was observed for total topsoil porosity. Cone index values in T3 were >2.5 MPa and between 3.33 and 4.90 MPa in the subsoil (200 to 600 mm). Dry bulk density values in T3 were >1.70 Mg m−3 in the topsoil and in the subsoil. This study also demonstrated that as the wheel load and ground contact pressure increase, sunflower yields decrease and subsoil compaction increases, even in soils with a high bearing capacity.

show abstract

Section: Resultssupporting

confidence: 93%

Sunflower (Helianthus annuus L.) harvest: Tractor and grain chaser traffic effects on soil compaction and crop yields

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The state of compaction can be characterized by the dry bulk density, which is one of the most frequently used parameters (Lamandé, Greve, & Schjønning, 2018;Qu & Zhao, 2016;Stumpf, Pauletto, & Pinto, 2016). In the column experiment, four compaction treatments were designed based on the difference in dry bulk density.…”

Section: Experimental Designmentioning

confidence: 99%

Effects of rainfall intensity and compaction on water transport from opencast coal mine soils: An experimental study

Wang

2019

Hydrological Processes

View full text Add to dashboard Cite

The use of heavy machinery during opencast coal mining can result in soil compaction. Severe soil compaction has a negative impact on the transport of water and gas in the soil. In addition, rainfall intensity has traditionally been related to soil surface sealing affecting water transport. To assess the effects of rainfall intensity and compaction on water infiltration and surface runoff in an opencast coal mining area, the disturbed soils from the Antaibao opencast mine in Shanxi Province, China, were collected. Four soil columns with different bulk densities (i.e., 1.4 g cm‐3, 1.5 g cm‐3, 1.6 g cm‐3, and 1.7 g cm‐3) were designed, and each column received water five times at rainfall intensities of 23.12, 28.91, 38.54, 57.81, and 115.62 mm hr‐1. The total volume of runoff, the time to start runoff, and the volumetric water contents at the depths of 5 cm, 15 cm, 25 cm, 35 cm, 45 cm, 55 cm, and 65 cm were measured. Under the same soil bulk density, high rainfall intensity reduced infiltration, increased surface runoff, and decreased the magnitude of change in the volumetric water contents at different depths. Under the same rainfall intensity, the soil column with a high bulk density showed relatively low water infiltration. Treatments 3 (1.6 g cm‐3) and 4 (1.7 g cm‐3) had very small changes in volumetric water contents of the profiles even under a lower rainfall intensity. Severe soil compaction was highly prone to surface runoff after rainfall. Engineering and revegetation measures are available to improve compacted soil quality in dumps. Our results provide a theoretical basis for the management of land reclamation in opencast coal mine areas.

show abstract

“…Esses critérios foram estabelecidos a partir de informações e situações observadas em quatro campanhas de campo, imagens fotográficas e imagens capturadas por veículo aéreo não tripulado (VANT), durante um período de 15 meses após a instalação dos modelos estruturais. Os critérios retenção do solo-substrato/sementes e adubação verde (desenvolvimento) estão relacionados à estruturação de agregados do solo, por meio do sistema radicular das plantas com vistas a favorecer a sucessão natural (NOGUEIRA et al, 2012;ROSA et al, 2014;COLODETE et al, 2014;CAPILLERI et al, 2016;STUMPF et al, 2016). O critério confecção do modelo (custo) está relacionado ao uso de material local e natural, inserido no conceito de bioengenharia de solos, o que lhe confere menor custo se comparado às técnicas tradicionais da engenharia (LI;EDDLEMAN, 2002;LI, 2006;PINTO, 2009).…”

Section: íNdices De Desempenhounclassified

Modelos estruturais de bioengenharia de solos na revegetação de pilhas de estéril em mineração a céu aberto

Solera

Ribeiro

Souza

et al. 2018

Rev. Bras. Ciênc. Ambient. (Online)

View full text Add to dashboard Cite

Os processos tecnológicos associados à extração mineral estão entre as principais formas de degradação do ambiente, com intenso efeito sobre a paisagem, podendo causar diversos danos ambientais. Dentre esses diferentes processos e subprodutos gerados, a pilha de estéril caracterizase como um novo ambiente formado pela operação mineral, sendo de difícil recomposição vegetal em função da deficiência de matéria orgânica e de nutrientes, além da heterogeneidade granulométrica do material. Este artigo discute a aplicabilidade de técnicas de bioengenharia de solos na recuperação do talude da pilha de estéril de uma mineração a céu aberto. Três modelos estruturais de bioengenharia de solos foram desenvolvidos, construídos e instalados no talude com vistas a promover a recuperação da área degradada: guirlanda, colmeia e retentor. Os índices desenvolvidos para avaliar o desempenho dos modelos indicam que a guirlanda apresentou os melhores resultados, destacando-se a baixa dificuldade, tanto na instalação do modelo na pilha de estéril quanto no preenchimento do solo-substrato/ sementes, além do alto desenvolvimento das espécies de adubação verde no modelo. O segundo melhor desempenho foi alcançado pelo modelo retentor e o pior desempenho foi obtido pelo modelo colmeia. Palavras-chave: mineração; pilha de estéril; recuperação ambiental; revegetação.

show abstract

Soil aggregation and root growth of perennial grasses in a constructed clay minesoil

Cited by 44 publications

References 31 publications

Sunflower (Helianthus annuus L.) harvest: Tractor and grain chaser traffic effects on soil compaction and crop yields

Sunflower (Helianthus annuus L.) harvest: Tractor and grain chaser traffic effects on soil compaction and crop yields

Effects of rainfall intensity and compaction on water transport from opencast coal mine soils: An experimental study

Modelos estruturais de bioengenharia de solos na revegetação de pilhas de estéril em mineração a céu aberto

Contact Info

Product

Resources

About