Comparison of water transfer as a component of the energy balance in a cultivated grass (Brachiaria decumbens Stapf.) field and a savanna during the wet season of the Orinoco Llanos

Jose, Juan; Bracho, Rosvel; Nikonova, Nina

doi:10.1016/s0168-1923(97)00092-0

Cited by 15 publications

(9 citation statements)

References 43 publications

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“…Brachiaria species for pasture have high biomass production. In the literature Brachiaria decumbens can produce up to 1800 kg·ha −1 grown in hard conditions of water deficiency, such as savannas [22]. The same species can produce in normal conditions with optimum addition of fertilizers around 3500 kg·ha −1 [39], and 9000 kg·ha −1 [40] of dry mass.…”

Section: Discussionmentioning

confidence: 99%

“…This process can play an important role in the vineyard soils contaminated with copper, due to these areas are usually located in steep mountains with sandy soils, subjected to erodibility, promoting high soil losses by surface runoff. Brachiaria decumbens is species often used, primarily as a pasture, and also it has been used as either cover crop or green manure to protect the soils from the surface runoff of soil [22]. Moreover, this species is a plant with high biomass production [22], and it is produced widely throughout the world [23].…”

Section: Introductionmentioning

confidence: 99%

“…Brachiaria decumbens is species often used, primarily as a pasture, and also it has been used as either cover crop or green manure to protect the soils from the surface runoff of soil [22]. Moreover, this species is a plant with high biomass production [22], and it is produced widely throughout the world [23]. B. decumbens is well adapted to infertile acid soils [23,24], and can be used in a wide range of soils.…”

Section: Introductionmentioning

confidence: 99%

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Andreazza¹,

Bortolon²,

Pieniz³

et al. 2013

OJSS

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Brachiaria decumbens is a high biomass plant with great potential for phytoremediation of copper-polluted soils. The current study aimed to evaluate B. decumbens plants for phytoextraction and phytostabilization use in two different copper contaminated vineyard soils and a copper mining waste. Also, the macro and micronutrients uptake were evaluated after plants growth in copper contaminated soils. B. decumbens was cultivated in two vineyard soils (Inceptisol and Mollisol) and a copper mining waste for 47 days of growth in greenhouse. Then, B. decumbens's nutrient uptake was evaluated, and it's potential application in phytoremediation techniques for the phytoextraction and phytostabilization of copper contamination. B. decumbens exhibited high levels of biomass production at contaminated soils and no negative effect on macronutrients uptake was found. Copper contaminated soils affected micronutrients uptake by Brachiaria plants. This Brachiaria specie showed high potential on copper phytoextraction with accumulation of copper concentrations in the shoots and roots of 70 and 585 mg·kg −1 of dry mass, respectively, in the vineyard Inceptisol soil, after 47 days of growth. Mollisol soil and copper mining waste also exhibited high copper concentration in the biomass in the entire plant with 371 and 466 mg·kg −1 , respectively. Although Brachiaria exhibited low levels of translocation factor for copper, this specie showed high potential for copper phytoextraction on Inceptisol, Mollisol and copper mining waste with 1900, 1156 and 1363 g·ha −1 of copper, respectively. In summary, B. decumbens plants showed high potential for copper phytoextraction and phytostabilization of copper on contaminated vineyard soils and copper mining waste.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Andreazza¹,

Bortolon²,

Pieniz³

et al. 2013

OJSS

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“…This broad notion is supported by numerous observational studies reporting that water or carbon fluxes differed between contrasting land covers, despite exposure to nearly identical meteorological conditions [Joffre and Rambal, 1993;San Jose et al, 1998;Santos et al, 2003;Baldocchi et al, 2004;Sakai et al, 2004;von Randow et al, 2004]. On the contrary, some studies found that fluxes differed little between adjacent, contrasting land covers, or were insensitive to temporal variation in vegetation fractional cover [Kabat et al, 1997;Hutley et al, 2000;Guillevic et al, 2002].…”

Section: Introductionmentioning

confidence: 92%

Contrasting short‐ and long‐timescale effects of vegetation dynamics on water and carbon fluxes in water‐limited ecosystems

Williams

Albertson

2005

Water Resources Research

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[1] While it is generally believed that the magnitude and composition of vegetation cover influence land-atmosphere water and carbon fluxes, observations indicate that in some cases, fluxes are insensitive to land cover contrasts. This seeming inconsistency may be resolved by contrasting fluxes over short and long timescales. To explore this potential contrast, we developed and tested a model designed to simulate daily to decadal land surface water and carbon fluxes and vegetation dynamics for water-limited ecosystems. The model reproduces (R 2 > 0.76) observed daily fluxes under increasing water limitation and captures representative dynamics of leaf area and fractional cover of dominant grass and wood vegetation. We parameterized the model for southern African savannas and conducted two sets of numerical experiments with either having fixed (static) grass and wood covers or allowing them to adjust dynamically with production. Static simulations reveal that the direct effect of rainfall on soil moisture is more important than the prevailing grass and wood cover states in controlling annual transpiration and production. Dynamic simulations indicate sensitivity of daily fluxes to vegetation cover states during high soil water periods. However, depletion of finite soil water prevents an integrated effect from lasting over interstorm to annual timescales. Correspondingly, while seasonal vegetation dynamics enhance seasonality in fluxes, vegetation dynamics have only minor influence on annual transpiration and production. In fact, annual rainfall explains most (R > 0.85) of the temporal variation in annual water and carbon fluxes. Hence, despite alteration of daily and seasonal distributions of fluxes, for water-limited ecosystems, vegetation dynamics have little effect on annual transpiration and production.

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“…The high production of BD was due to being used as a cover crop, while the other type of grass grows inadvertently. BD, a cover crop, is used to protect the soils from the surface running-off (San et al, 1998), has high biomass production (San et al, 1998), is produced widely throughout the world (Rao et al, 1998) and is well adapted to various soil types, primarily to infertile acid soils (Rao et al, 1998;Wenzl et al, 2000). CP is a perennial and trailing-climbing herbaceous legume, adapted to sub-humid and humid tropics more than 2000 mm of rainfall and better adapted to acid soils (CSIRO, 2006).…”

Section: Composition Of Grass Species and Biomass Production In The Tmentioning

confidence: 99%

Evaluation of Tropical Grasses on Mine Revegetation for Herbage Supply to Bali Cattle in Sorowako, South Sulawesi, Indonesia

Hasan¹,

Natsir²,

Ako³

et al. 2016

OnLine Journal of Biological Sciences

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Abstract:The aim of this study was to evaluate forage quality and absorption of heavy metals in grasses of grazing lands in mine revegetation area. Grazing land was dominated by Brachiaria decumbens (BD), which occupied about 87% in the pasture' syielding ability of 14.8 Mg DM/ha/year, followed by Centrocema pubescens (CP), Calopogonium mucunoides (CM) and Imperata cylindrica (IC) at 6, 4 and 3%, respectively. Both of in vitro dry matter digestibility and organic matter digestibility were the highest in BD and CM, followed by CP and the lowest in IC. Structural carbohydrates of cellulose and hemicelluloses were the highest in BD, contrary to Acid Detergent Lignin (ADL) concentration, which was the highest in IC and the lowest in BD, while CP and CM showed the middle in ADL and cellulose concentrations among the four forage species. Heavy metals of nickel (Ni), chromium (Cr) and lead (Pb) were detected in the order of Ni > Cr > Pb in the grasses examined and harvested on mine-revegetation area in Sorowako, Indonesia.

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Comparison of water transfer as a component of the energy balance in a cultivated grass (Brachiaria decumbens Stapf.) field and a savanna during the wet season of the Orinoco Llanos

Cited by 15 publications

References 43 publications

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Contrasting short‐ and long‐timescale effects of vegetation dynamics on water and carbon fluxes in water‐limited ecosystems

Evaluation of Tropical Grasses on Mine Revegetation for Herbage Supply to Bali Cattle in Sorowako, South Sulawesi, Indonesia

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Comparison of water transfer as a component of the energy balance in a cultivated grass (Brachiaria decumbens Stapf.) field and a savanna during the wet season of the Orinoco Llanos

Cited by 15 publications

References 43 publications

Copper Phytoextraction and Phytostabilization by &lt;i&gt;Brachiaria decumbens&lt;/i&gt; Stapf. in Vineyard Soils and a Copper Mining Waste

Copper Phytoextraction and Phytostabilization by &lt;i&gt;Brachiaria decumbens&lt;/i&gt; Stapf. in Vineyard Soils and a Copper Mining Waste

Contrasting short‐ and long‐timescale effects of vegetation dynamics on water and carbon fluxes in water‐limited ecosystems

Evaluation of Tropical Grasses on Mine Revegetation for Herbage Supply to Bali Cattle in Sorowako, South Sulawesi, Indonesia

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Product

Resources

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste