Short-rotation woody crops and phytoremediation: Opportunities for agroforestry?

Rockwood, D. L.; Naidu, C. V.; Carter, D.R.; Rahmani, Mohammad; Spriggs, TW; Lin, Chung Ho; Alker, Gillian; Isebrands, J. G.; Segrest, Steve

doi:10.1023/b:agfo.0000028989.72186.e6

Cited by 99 publications

(38 citation statements)

References 17 publications

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“…Many studies have thus been focused on the use of willows and pop lars in phytoextraction (Riddell-Black 1994, Labreque et al 1995, Bañuelos et al 1999, Robinson et al 2000, Aronsson & Perttu 2001, Granel et al 2002, Klang-Westin & Perrtu 2002, Hammer et al 2003, Vyslouz ilová et al 2003, Vervaeke et al 2003, Madejou et al 2004, Sebastiani et al 2004, Kuzovkina et al 2004, Robinson et al 2005, Giachetti & Sebastiani 2006, Dos Santos Ut mazian et al 2007, Jensen et al 2009). These species can be ad vantageously exploited in short rotation cop pice cultures (SRC), a strategy whose appli cation in phytoremediation presents intere sting and economically promising perspe ctives (Scarascia-Mugnozza et al 1997, Paulson et al 2003, Laureysens et al 2004a, Laureysens et al 2004b, Rockwood et al 2004, Dickinson & Pulford 2005, Witters et al 2009). …”

Section: Woody Plants and Phytoremediationmentioning

confidence: 99%

Heavy metals and woody plants - biotechnologies for phytoremediation

Capuana¹

2011

iForest

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Soil contamination by heavy metals is among the most serious danger for the environment, and new methods for its containment and removal are claimed, in particular for agricultural soils. Phytoremediation is an emerging, potentially effective technology applicable to restoration of contaminated soils and waters. Besides hyperaccumulator herbaceous plants, several woody species are now considered of interest to this aim. Many woody plants are fast growing, have deep roots, produce abundant biomass, are easy to harvest, and several species revealed some capacity to tolerate and accumulate heavy metals. Biotechnologies are now available for investigating this potential and enlarge the possibilities of exploitation of trees for remediation. The use of in vitro cultures, the role of bacteria and mychorrhizas, the powerful tool of genetic engineering, are some of the aspects focused in this paper that open prospects of global relevance for a better understanding of the processes related to the uptake of heavy metals by woody plants. In recent years significant progress has been made in identifying native plants and developing genetically modified tree plants for the remediation of heavy-metal polluted environment. Despite the intensive research developed in the last years, few field trials demonstrated the feasibility of the approach described, therefore much efforts should be addressed to this goal

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Section: Woody Plants and Phytoremediationmentioning

confidence: 99%

Heavy metals and woody plants - biotechnologies for phytoremediation

Capuana¹

2011

iForest

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“…Recently, willows have been shown to be good candidates for remediating metal-contaminated sites because of their rapid growth, large biomass, deep roots, and high accumulation capacity for heavy metals (Kuzovkina and Quigley, 2005;Kuzovkina and Volk, 2009). In the last decade, short-rotation willow coppices have provided an economic and practical solution for remediation as well as for bioenergy production (Rockwood et al, 2004;Mirck et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Variation in copper and zinc tolerance and accumulation in 12 willow clones: implications for phytoextraction

Yang

Wang

Zhao

et al. 2014

J. Zhejiang Univ. Sci. B

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Willows (Salix spp.) have shown high potential for the phytoextraction of heavy metals. This study compares variations in copper (Cu) and zinc (Zn) tolerance and accumulation potential among 12 willow clones grown in a nutrient solution treated with 50 μmol/L of Cu or Zn, respectively. The results showed differences in the tolerance and accumulation of Cu and Zn with respect to different species/clones. The biomass variation among clones in response to Cu or Zn exposure ranged from the stimulation of growth to inhibition, and all of the clones tested showed higher tolerance to Cu than to Zn. The clones exhibited less variation in Cu accumulation but larger variation in Zn accumulation. Based on translocation factors, it was found that most of the Cu was retained in the roots and that Zn was more mobile than Cu for all clones. It is concluded that most willow clones are good accumulators of Zn and Cu.

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“…In fact, these Salicaceae are reported not only to be adaptable to growing in severe soil conditions, characteristic of contaminated areas, but also to be capable of accumulating heavy metals . Cultural management of willows and poplars by means of short rotation coppice cultures (SRC) is another interesting aspect to be considered in phytoremediation strategies (Ceulemans et al 1992;Scarascia-Mugnozza et al 1997;Perttu 1999;Rockwood et al 2004). In this context, Dickinson and Pulford (2005) have reported that willow SRC can be utilised as an efficient and cost-effective method in removing cadmium contamination from agricultural soil.…”

Section: Introductionmentioning

confidence: 99%

Metal Tolerance, Accumulation and Translocation in Poplar and Willow Clones Treated with Cadmium in Hydroponics

Zacchini¹,

Pietrini²,

Mugnozza

et al. 2008

Water Air Soil Pollut

384

203

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To evaluate the phytoremediation capability of some poplar and willow clones a hydroponic screening for cadmium tolerance, accumulation and translocation was performed. Rooted cuttings were exposed for 3 weeks to 50 μM cadmium sulphate in a growth chamber and morpho-physiological parameters and cadmium content distribution in various parts of the plant were evaluated. Total leaf area and root characteristics in clones and species were affected by cadmium treatment in different ways. Poplar clones showed a remarkable variability whereas willow clones were observed to be more homogeneous in cadmium accumulation and distribution. This behaviour was further confirmed by the calculation of the bio-concentration factor (BCF) and the translocation factor (Tf). Mean values of all the clones of the two Salicaceae species showed that willows had a far greater ability to tolerate cadmium than poplars, as indicated by the tolerance index (Ti), calculated on the dry weight of roots and shoots of plants. As far as the mean values of Tf was concerned, the capacity of willows to translocate was double that of poplars. On the contrary, the mean values of total BCF in poplar clones was far higher with respect to those in willows. The implications of these results in the selection of Salicaceae clones for phytoremediation purposes were discussed.

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Short-rotation woody crops and phytoremediation: Opportunities for agroforestry?

Cited by 99 publications

References 17 publications

Heavy metals and woody plants - biotechnologies for phytoremediation

Heavy metals and woody plants - biotechnologies for phytoremediation

Variation in copper and zinc tolerance and accumulation in 12 willow clones: implications for phytoextraction

Metal Tolerance, Accumulation and Translocation in Poplar and Willow Clones Treated with Cadmium in Hydroponics

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