Allelopathic effect of new introduced biofuel crops on the soil biota: A comparative study

Heděnec, Petr; Novotný, David; Usťak, Sergej; Honzík, Roman; Kovářová, Marie; Šimáčková, Hana; Frouz, Jan

doi:10.1016/j.ejsobi.2014.05.002

Cited by 16 publications

(10 citation statements)

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“…It is possible that Miscanthus can eventually reduce local dominance by key matrix species, thus opening spaces for other less frequent species. Such complex dynamics might result from allelopathic effects that Miscanthus can exert in some systems ( Chou, 2009 ; Hedìnec et al, 2014 ; Hager et al, 2015b ). More broadly, novel species introductions have been found to be both positively and negatively associated with community richness patterns, and this inconsistency has been attributed to characters such as measurement scale (i.e., Shea and Chesson, 2002 ; Chen et al, 2010 ), biotic resistance (i.e., Levine et al, 2004 ), resource availability and disturbance (i.e., Davis et al, 2000 ), and community interaction strength (i.e., MacDougall and Turkington, 2005 ).…”

Section: Discussionmentioning

confidence: 99%

“…We know that many traits attractive for biomass crops are also associated with successful invasive species ( Raghu et al, 2011 ; Flory et al, 2012 ; Schnitzler and Essl, 2015 ). Miscanthus taxa display a range of characteristics associated with invaders, such as rapid biomass accumulation, tall stature, allelopathic properties, and wide ecological tolerances and dispersal capabilities ( Chou, 2009 ; Quinn et al, 2012 ; Matlaga and Davis, 2013 ; Hager et al, 2014 ; Hedìnec et al, 2014 ), suggesting the possibility of negative impacts once plants are established. However, whether such traits will allow Miscanthus to establish, and significantly change the composition or functioning of receptor communities, requires evaluation ( Drenovsky et al, 2012 ; Barney et al, 2013 ; Blackburn et al, 2014 ; Dick et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

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Lack of Impacts during Early Establishment Highlights a Short-Term Management Window for Minimizing Invasions from Perennial Biomass Crops

et al. 2017

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Managing intentional species introductions requires evaluating potential ecological risks. However, it is difficult to weigh costs and benefits when data about interactions between novel species and the communities they are introduced to are scarce. In anticipation of expanded cultivation of perennial biomass crops, we experimentally introduced Miscanthus sinensis and Miscanthus × giganteus (two non-native candidate biomass crops) into two different non-crop habitats (old field and flood-plain forest) to evaluate their establishment success and impact on ambient local communities. We followed these controlled introductions and the composition dynamics of the receiving communities over a 5-year period. Habitats differed widely in adult Miscanthus survival and reproduction potential between species, although seed persistence and seedling emergence were similar in the two biomass crops in both habitats. Few introductions survived in the floodplain forest habitat, and this mortality precluded analyses of their potential impacts there. In old field habitats, proportional survival ranged from 0.3 to 0.4, and plant survival and growth increased with age. However, there was no evidence of biomass crop species effects on community richness or evenness or strong impacts on the resident old field constituents across 5 years. These results suggest that Miscanthus species could establish outside of cultivated fields, but there will likely be a lag in any impacts on the receiving communities. Local North American invasions by M. sinensis and M. sacchariflorus display the potential for Miscanthus species to develop aggressively expanding populations. However, the weak short-term community-level impacts demonstrated in the current study indicate a clear management window in which eradicating species footholds is easily achieved, if they can be detected early enough. Diligent long-term monitoring, detection, and eradication plans are needed to successfully minimize harmful invasions from these biomass crops.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lack of Impacts during Early Establishment Highlights a Short-Term Management Window for Minimizing Invasions from Perennial Biomass Crops

et al. 2017

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“…Hence, the increase in their volume over the past 15 years is justifiable [15]. Beside their positive socio-economic and environmental impacts, perennial biomass crops play a pivotal role in enhancing the degraded soil quality by improving water and nutrient retention, reducing pollutants dispersion as well as augmenting soil biodiversity [16][17][18]. Another important feature is their long-term impact on the soil organic carbon (SOC) stocks, via carbon sequestration or emission [9].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Carbon Sequestration in Marginal Land Upon Shift towards Perennial C4Miscanthus × giganteus: A Case Study in North-Western Czechia

et al. 2021

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Bioenergy crops such as Miscanthus x giganteus are foreseeable as an alternative source to replace fossil fuel and reduce greenhouse gas emissions. They are also assessed as an environment-friendly solution for polluted, marginal and low-quality agricultural soils. Several studies had been launched on soil organic carbon sequestration potentials of miscanthus culture along with its impacts on restoring soil functionality, most of which focus on the long-term basis of the plant’s cultivation. Nevertheless, information concerning the short term impacts as well as the situation in Czechia is still scarce. In this context, a field experiment was launched in 2017 in a poor-quality agricultural land in the city of Chomutov (North-Western Czechia) to compare the impacts of the perennial C4 miscanthus with an annual C3 forage crop (wheat) on the soil carbon stocks as well as enhancing its functionality. Results through the 0–30 cm soil profile examination showed that miscanthus plants played a role in improving the studied soil physico-chemical (bulk density and soil organic carbon concentrations) and biological (Phospholipid fatty acids stress indicator, basal respiration and fluorescein diacetate hydrolytic activity) parameters. The naturally occurring δ13C concentrations were used to evaluate the direct plant contribution to the total soil organic carbon (SOC) stocks and revealed considerable miscanthus contribution all over the detected soil layers (1.98 ± 0.21 Mg C. ha−1 yr−1) after only 3 growing seasons. It is thus suggested that the C4 perennial miscanthus possess remarkable prospects for SOC sequestration and restoring degraded lands.

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“…Allelopathic interference or interaction with microbial soil organisms may contribute to the lack of native species in populations of Bohemian knotweed (Parepa et al 2013). Knotweed leachates applied in a field experiment showed knotweed had a strong effect on population growth of the soil fauna (Heděnec et al 2014). Further evidence of the importance of soil biota comes from Maerz et al (2009), who found invasive earthworms facilitated knotweed establishment.…”

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confidence: 99%

Knotweed (Fallopiaspp.) Invasion of North America Utilizes Hybridization, Epigenetics, Seed Dispersal (Unexpectedly), and an Arsenal of Physiological Tactics

Gillies

Clements

Grenz

2016

Invasive plant sci. manag.

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More than 100 years ago, Japanese knotweed was introduced to North America. Given its vigorous rhizome system and capability to grow from rhizome and stem fragments, it persists and spreads locally, forming monotypic stands. The Japanese knotweed clone originally introduced was a male sterile female clone; thus, early in the invasion, reproduction from seed was not an issue. The implication was that long-distance dispersal was relatively rare. However, recently, widespread hybridization between Japanese knotweed and Sakhalin (giant) knotweed has been reported, with the hybrid species, Bohemian knotweed, forming the majority of knotweed plants in many areas and possessing higher variability than the parent species. The hybrids produce large numbers of wind-dispersed viable seeds that germinate at rates approaching 100% in some populations. As temperatures increase, knotweed is predicted to expand its range farther north and to higher elevations. With the ability to regenerate from vegetative fragments and disperse via seeds, invasive knotweed species are on the move. An arsenal of chemical weapons, the ability to shade out competitors, and the ability to adapt rapidly through epigenetic change makes knotweed a formidable invader. We observed that knotweed species clearly possess 8 of the 12 ideal weed characteristics, with Bohemian knotweed likely exhibiting still more because of prolific seed production. More research is needed to answer pressing questions. How does hybridization affect knotweed epigenetics? Under what conditions might seed production become more frequent? What kind of niche expansion is possible with the increased variability? Given the considerable challenges posed by knotweed species that promise to become even greater with the proliferation and spread of Bohemian ecotypes, only a thoroughly researched, well-informed approach to knotweed management across North America can be successful.

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Allelopathic effect of new introduced biofuel crops on the soil biota: A comparative study

Cited by 16 publications

References 53 publications

Lack of Impacts during Early Establishment Highlights a Short-Term Management Window for Minimizing Invasions from Perennial Biomass Crops

Lack of Impacts during Early Establishment Highlights a Short-Term Management Window for Minimizing Invasions from Perennial Biomass Crops

Enhanced Carbon Sequestration in Marginal Land Upon Shift towards Perennial C4Miscanthus × giganteus: A Case Study in North-Western Czechia

Knotweed (Fallopiaspp.) Invasion of North America Utilizes Hybridization, Epigenetics, Seed Dispersal (Unexpectedly), and an Arsenal of Physiological Tactics

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