Resistência ao cisalhamento de solos e taludes vegetados com capim vetiver

Barbosa, Michele Cristina Rufino; Lima, Hernani Mota de

doi:10.1590/s0100-06832013000100012

Cited by 11 publications

(12 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The vetiver grass used in the CWS showed good development in comparison to the data reported in the literature (Barbosa and Lima, 2013). The vetiver grass of average height was 1.4 m. Value above that observed by Andrade et al (2011).…”

Section: Guimares Et Al 4547supporting

confidence: 52%

“…The CWS was cultivated with vetiver grass (Vetiveria zizanioides), and has the following characteristics: very efficient in slope stabilization, aromatic plant that reaches height of 2 m and its roots can penetrate with a depth of 3 m (Barbosa and Lima, 2013).…”

Section: Wastewater Treatment Systemmentioning

confidence: 99%

“…The vetiver grass, since it has a deep and abundant root system, can be an alternative in constructed wetland systems (Barbosa and Lima, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of nitrogen and phosphorus from cattle farming wastewater using constructed wetland system

Geovana¹,

Dinara²,

Marcos³

et al. 2016

Afr. J. Agric. Res.

View full text Add to dashboard Cite

The confined dairy cattle system employs the most modern production techniques with respect to the genetic standards of the herds. The success found in these systems promoted an increase in the number of confined animals and, consequently, an increase in the produced volume of waste, causing the waste from dairy cattle farming to be one of the largest problems in intensive management systems. This effluent has high amount of phosphorus and nitrogen, and the accumulation of these nutrients in surface waters can cause eutrophication of water courses deteriorating their quality. This study is aimed to evaluate the efficiency of a constructed wetland system, cultivated with vetiver grass (Vetiveria zizanioides) in the removal of important environmental pollutants nitrogen (N) and phosphorus (P) from dairy cattle farming wastewater. The effluent received pre-treatment and before passing through the constructed wetland system which was built in a trapezoidal shape. The wastewater from dairy cattle farming, at the inlet and outlet of the constructed wetland system, was biweekly analyzed for different forms of N (ammonia, total Kjeldahl N, nitrate and nitrite) and P. The constructed wetland system proposed cultivated with vetiver grass showed good removal pollutants with greater mean efficiency in the removal of nitrite (43.6%), the total Kjeldahl nitrogen (32.0%) and ammonia (31.0%). Vetiver grass cultivation showed good adaptation to the constructed wetland system, with satisfactory development and no visual symptoms of nutrients deficiency.

show abstract

Section: Guimares Et Al 4547supporting

confidence: 52%

Section: Wastewater Treatment Systemmentioning

confidence: 99%

See 1 more Smart Citation

Removal of nitrogen and phosphorus from cattle farming wastewater using constructed wetland system

Geovana¹,

Dinara²,

Marcos³

et al. 2016

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…O vetiver tem sido muito utilizado para controle de erosões (Barbosa & Lima, 2013) principalmente em áreas com degradação severa em que os horizontes superficiais do solo já foram removidos enquanto o horizonte subsuperficial (Horizonte C) e menos fértil está exposto na superfície do terreno. Os grupos densos de colmos ajudam a reduzir o escoamento de água superficial (Donjadee & Tingsanchali, 2013).…”

Section: Introductionunclassified

“…O plantio de cordões do vetiver tem-se mostrado eficiente na conservação do solo e da água em várias regiões do mundo devido à elevada resistência ao arrancamento pelas enxurradas, característica proporcionada pelo extenso e resistente sistema radicular que estabiliza a planta e agrega o solo (Truong & Loch, 2004). A partir de ensaios de cisalhamento direto Barbosa & Lima (2013) determinaram os parâmetros de resistência ao cisalhamento (intercepto de coesão e ângulo de atrito interno) verificando que o capim vetiver proporcionou incremento de coesão aparente ao solo sendo este destacado após três anos de plantio do capim. Em virtude de seu rápido crescimento a espécie ainda forma rapidamente densas touceiras que criam barreiras às enxurradas, tornando-a capaz de recuperar áreas degradadas com o aumento da agregação do solo e consequente aumento da infiltração da água (Truong & Loch, 2004).…”

Section: Introductionunclassified

Resposta de vetiver à aplicação de calcário e fósforo em três classes de solo

Teixeira

Macedo²,

Teixeira³

et al. 2015

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

R E S U M OO vetiver tem sido bastante utilizado para controle de erosão, principalmente em áreas degradadas em que o horizonte superficial do solo foi removido. O manejo do solo pode influenciar a eficiência de absorção de nutrientes e o crescimento das plantas. Este trabalho objetivou avaliar a produção de matéria seca de vetiver em resposta à aplicação de calcário e fósforo. O experimento foi conduzido em casa de vegetação utilizando-se amostras de horizontes subsuperficiais de um Cambissolo Háplico, um Latossolo Amarelo e um Argissolo Amarelo. O experimento foi instalado no delineamento em blocos ao acaso, com três repetições, em esquema fatorial 2 x 5 sendo duas doses de calcário (0 t ha -1 e dose para elevar a saturação por bases a 60%) e cinco doses de fósforo (0, 50, 100, 200, 400 mg dm -3 de P), totalizando 30 unidades experimentais por solo. Após a incubação foram aplicadas as doses de fósforo e, a seguir, feito o plantio de vetiver. Aos 168 dias após o plantio as plantas foram colhidas separando-se a parte aérea e as raízes. A calagem e a adubação fosfatada promoveram aumento da produção de perfilhos e de matéria seca em vetiver. A calagem aumentou a eficiência da adubação fosfatada e, em consequência, favoreceu o estabelecimento do vetiver.Vetiver response to the application of limestone and phosphorus in three classes of soils A B S T R A C T Vetiver grass has been used to control erosion, especially in areas with severe degradation in the upper soil layers and when the subsurface horizons are exposed on the ground surface. Soil management can influence the efficiency of nutrient uptake and plant growth. This study aimed to evaluate the yield of vetiver plants in response to lime and phosphorus. The experiment was conducted in a greenhouse, using samples from subsurface horizons of a Cambisol, an Oxisol and an Ultisol. The experiment was conducted in a randomized block design with three replications in a factorial 2 x 5 scheme, with two doses of lime (0 t haand recommended dose to raise the base saturation to 60%) and five doses of P (0, 50, 100, 200, 400 mg dm -3 ). After incubation with limestone, doses of phosphorus were applied and vetiver was planted. At 168 days after planting, the plants were harvested, separating the shoots and roots. Liming and application of phosphorus significantly increased tillering and dry matter accumulation of vetiver grass. Liming increased the efficiency of phosphorus fertilization and hence favored the establishment of vetiver, confirming the need of using these practices for faster recovery of degraded soils. Palavras-chave:Chrysopogon zizanioides matéria seca calagem horizonte subsuperficial erosão Key words:Chrysopogon zizanioides dry matter liming subsurface horizon erosion

show abstract

Stabilization to prevent soil erosion using vetiver (Chrysopogon zizanioides L.) in slopes: a field case study of selected grounds at Guatemala

et al. 2020

View full text Add to dashboard Cite

The effects of Chrysopogon zizanioides (vetiver) on the hydrophysical properties of soils and infiltration rate have been determined. Thus, it has been examined the stabilization to prevent soil erosion using vetiver in slopes, studying a field case of selected grounds at Guatemala. The particle size analysis of the soil samples showed a predominant sand fraction and a plasticity index of 7.9 %. The results indicated that these soils were fairly acid with worthless salinity and non-swelling. The specific surface area, determined by nitrogen adsorption-desorption analysis, ranged from 11.7 - 15.5 m2 /g and the pore sizes between 17-160 µm, which changed to 20-100 µm, with predominant pore size around 40 µm after cultivation. The characteristics of the soils showed the presence of cohesion (2.05 t/m2) and an internal friction angle Ф = 31.69º. After the plantation, it has been found a decrease in the cohesion and an increase of the internal friction angle. The sowing of vetiver affected the infiltration characteristics of the soil. An analysis using the Kostiakov-Lewis classical model, with a mathematical fitting, has been performed. From these results, it has been deduced that the slope protected using this plant diminished its infiltration rate, being associated to the compaction caused by the plant roots. The present results demonstrated that the plantation of vetiver is effective to stabilize and prevent slopes from the soil erosion caused by severe rainfall events.

show abstract

Resistência ao cisalhamento de solos e taludes vegetados com capim vetiver

Cited by 11 publications

References 12 publications

Removal of nitrogen and phosphorus from cattle farming wastewater using constructed wetland system

Removal of nitrogen and phosphorus from cattle farming wastewater using constructed wetland system

Resposta de vetiver à aplicação de calcário e fósforo em três classes de solo

Stabilization to prevent soil erosion using vetiver (Chrysopogon zizanioides L.) in slopes: a field case study of selected grounds at Guatemala

Contact Info

Product

Resources

About