The development of short-rotation willow in the northeastern United States for bioenergy and bioproducts, agroforestry and phytoremediation

Volk, Timothy A.; Abrahamson, Lawrence P.; Nowak, Christopher A.; Smart, Lawrence B.; Tharakan, Pradeep J.; White, Edwin H.

doi:10.1016/j.biombioe.2006.03.001

Cited by 241 publications

(181 citation statements)

References 31 publications

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“…One of the current strategies to bring degraded land back into productivity using low input agriculture is to actively rejuvenate contaminated or polluted land in a process termed phytoremediation. Numerous studies have demonstrated willow's capacity to tolerate contaminated soils beyond the majority of agricultural crops (Robinson et al, 2000;Volk et al, 2006;Pitre et al, 2010;Grenier et al, 2015), presenting an industrially pertinent opportunity to reduce high biomass production costs Black et al, 2011;Yue et al, 2014) through added-value cultivation. However, the genetic mechanisms behind such tolerance are poorly understood.…”

mentioning

confidence: 99%

Comparative Transcriptomic Approaches Exploring Contamination Stress Tolerance in Salix sp. Reveal the Importance for a Metaorganismal de Novo Assembly Approach for Nonmodel Plants

et al. 2016

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Metatranscriptomic study of nonmodel organisms requires strategies that retain the highly resolved genetic information generated from model organisms while allowing for identification of the unexpected. A real-world biological application of phytoremediation, the field growth of 10 Salix cultivars on polluted soils, was used as an exemplar nonmodel and multifaceted crop response well-disposed to the study of gene expression. Sequence reads were assembled de novo to create 10 independent transcriptomes, a global transcriptome, and were mapped against the Salix purpurea 94006 reference genome. Annotation of assembled contigs was performed without a priori assumption of the originating organism. Global transcriptome construction from 3.03 billion paired-end reads revealed 606,880 unique contigs annotated from 1588 species, often common in all 10 cultivars. Comparisons between transcriptomic and metatranscriptomic methodologies provide clear evidence that nonnative RNA can mistakenly map to reference genomes, especially to conserved regions of common housekeeping genes, such as actin, a/b-tubulin, and elongation factor 1-a. In Salix, Rubisco activase transcripts were down-regulated in contaminated trees across all 10 cultivars, whereas thiamine thizole synthase and CP12, a Calvin Cycle master regulator, were uniformly up-regulated. De novo assembly approaches, with unconstrained annotation, can improve data quality; care should be taken when exploring such plant genetics to reduce de facto data exclusion by mapping to a single reference genome alone. Salix gene expression patterns strongly suggest cultivar-wide alteration of specific photosynthetic apparatus and protection of the antenna complexes from oxidation damage in contaminated trees, providing an insight into common stress tolerance strategies in a real-world phytoremediation system.Coppiced willows have the ability to produce high biomass yields in temperate regions under challenging conditions and have positive impacts on biodiversity (Labrecque et al

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mentioning

confidence: 99%

Comparative Transcriptomic Approaches Exploring Contamination Stress Tolerance in Salix sp. Reveal the Importance for a Metaorganismal de Novo Assembly Approach for Nonmodel Plants

et al. 2016

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“…Although some research trials exist in Northern Ontario, they are not yet at an age where definitive yield estimates are possible. Samson and Chen (1995) and others (Kenney et al 1991;Volk et al 2006Volk et al , 2011 report that most field-scale studies in high density plantings on productive land have been in the 5 ODT/ha to 11 ODT/ha range in northeastern North America. Keoleian and Volk (2005) report that commercial yields have been considerably lower than experimental yields (i.e., 4 ODT ha -1 yr -1 ) across nearly 2000 ha harvested over a threeyear period in Sweden and about 6 ODT ha -1 yr -1 in the first large-scale field trials harvested in New York in 2001.…”

Section: Growth and Yieldmentioning

confidence: 99%

“…Although there remains some uncertainty, commercial yields are expected to be approximately 5-10 oven-dried tonnes (ODT) annually per hectare in Northern Ontario (Kenney et al 1991;Samson et al 1999;Heller et al 2003;Volk et al 2006Volk et al , 2011.…”

Section: Introductionmentioning

confidence: 99%

The economic attractiveness of Short Rotation Coppice biomass plantations for bioenergy in Northern Ontario

Allen

McKenney

Yemshanov

et al. 2013

The Forestry Chronicle

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With an apparent abundance of idled and under-utilized agricultural land in Northern Ontario, there is interest in the ability of short-rotation forests to supply bioenergy and other possible bioproducts. Once established, Short Rotation Coppice (SRC) plantations can be harvested on (roughly) three-year cutting cycles until about age 22. Purpose-grown plantations such as these could be used as stand-alone sources of fibre or used in conjunction with sources such as natural forests or woody residues. Using a recently developed land cover model we found that approximately 405 500 ha of agricultural-type land exists across Northern Ontario. Numerous scenarios were developed to calculate SRC profitability on these areas. The analyses are intended to reflect a broad range of expectations on physical yields and prices, including management costs. Although SRC involves a considerable up-front investment, our simulations suggest a significant amount of land could have a break-even biomass price of $85/oven-dried tonnes (ODT) (+/-$5/ODT) at farm gate. This farm gate biomass price represents roughly current traditional biomass prices paid. Thus SRC would need to produce biomass at a comparable cost to be a competitive option. A number of technological and price changes could increase the attractiveness of SRC systems in Northern Ontario, including decreases in establishment and management costs (while maintaining yield expectations) and improved cultivars offering increased yields.

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“…as a source of biomass for energy purposes [1][2][3][4][5]. More recently, there has also been a growing interest in using willows for various environmental applications and land reclamation, including phytoremediation and phytoextraction of contaminated soils [6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation Efficacy of Salix discolor and S. eriocephela on Adjacent Acidic Clay and Shale Overburden on a Former Mine Site: Growth, Soil, and Foliage Traits

Mosseler¹,

Major²

2017

Forests

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Plants regularly experience suboptimal environments, but this can be particularly acute on highly-disturbed mine sites. Two North American willows-Salix discolor Muhl. (DIS) and S. eriocephala Michx. (ERI)-were established in common-garden field tests on two adjacent coal mine spoil sites: one with high clay content, the other with shale overburden. The high clay content site had 44% less productivity, a pH of 3.6, 42% clay content, high water holding capacity at saturation (64%), and high soil electrical conductivity (EC) of 3.9 mS cm −1 . The adjacent shale overburden site had a pH of 6.8, and after removing 56.5% stone content, a high sand content (67.2%), low water holding capacity at saturation (23%), and an EC of 0.9 mS cm −1 . The acidic clay soil had significantly greater Na (20×), Ca (2×), Mg (4.4×), S (10×), C (12×) and N (2×) than the shale overburden. Foliar concentrations from the acidic clay site had significantly greater Mg (1.5×), Mn (3.3×), Fe (5.6×), Al (4.6×), and S (2×) than the shale overburden, indicating that these elements are more soluble under acidic conditions. There was no overall species difference in growth; however, survival was greater for ERI than DIS on both sites, thus overall biomass yield was greater for ERI than DIS. Foliar concentrations of ERI were significantly greater than those of DIS for N (1.3×), Ca (1.5×), Mg (1.2×), Fe (2×), Al (1.5×), and S (1.5×). There were no significant negative relationships between metal concentrations and growth or biomass yield. Both willows showed large variation among genotypes within each species in foliar concentrations, and some clones of DIS and ERI had up to 16× the Fe and Al uptake on the acidic site versus the adjacent overburden. Genetic selection among species and genotypes may be useful for reclamation activities aimed at reducing specific metal concentrations on abandoned mine sites. Results show that, despite having a greater water holding capacity, the greater acidity of the clay site resulted in greater metal mobility-in particular Na-and thus a greater EC. It appears that the decline in productivity was not due to toxicity effects from the increased mobility of metals, but rather to low pH and moisture stress from very high soil Na/EC.

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The development of short-rotation willow in the northeastern United States for bioenergy and bioproducts, agroforestry and phytoremediation

Cited by 241 publications

References 31 publications

Comparative Transcriptomic Approaches Exploring Contamination Stress Tolerance in Salix sp. Reveal the Importance for a Metaorganismal de Novo Assembly Approach for Nonmodel Plants

Comparative Transcriptomic Approaches Exploring Contamination Stress Tolerance in Salix sp. Reveal the Importance for a Metaorganismal de Novo Assembly Approach for Nonmodel Plants

The economic attractiveness of Short Rotation Coppice biomass plantations for bioenergy in Northern Ontario

Phytoremediation Efficacy of Salix discolor and S. eriocephela on Adjacent Acidic Clay and Shale Overburden on a Former Mine Site: Growth, Soil, and Foliage Traits

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