Estimating Arundo donax shoot biomass

Spencer, David F.; Liow, Pui-Sze; Chan, Wai‐Lun; Ksander, Gregory G.; Getsinger, Kurt D.

doi:10.1016/j.aquabot.2005.11.004

Cited by 51 publications

(34 citation statements)

References 12 publications

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“…For a wide range of regimes, the GAM model confirmed that the strong allometric relationship between ramet height and aboveground dry biomass production is valid, whereas basal diameter is not related. This result is in agreement with a previous study conducted on a spontaneous population of a different age, where individual stem height was found to be the best predictive parameter for estimating shoot dry weight (Spencer et al, 2006). The equation obtained using the model successfully explained a high proportion of total variation in above-ground dry weight, using few, easy to determine biometric parameters.…”

Section: Discussionsupporting

confidence: 91%

Responses in chemical traits and biomass allocation of Arundo donax L. to deficit resources in the establishment year

Pompeiano

Guglielminetti

Bargiacchi

et al. 2013

Chilean J. Agric. Res.

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A large expansion in renewable energy production is underway with an increasing focus on sustainable second-generation biofuels. Fast growing rhizomatous perennial grasses are leading candidates for lignocellulosic feedstock thanks to their positive energy balance, and low ecological/agro-management demands. Biomass accumulation is favored by the efficient use of available resources. The aim of this study was to identify which accumulation processes were most affected in the establishment year of a giant reed (Arundo donax L.) field crop grown under water and N deficiencies. The relative plasticity of growth of A. donax in response to various levels of resource availability was evaluated. A field scale experiment was carried out, and treatments were arranged as a randomized complete block, strip-plot design with irrigation treatments as the main plot factor and pre-planting N rate as the sub-plot factor. Biometric relationships between variables were assessed to understand how agro-management factors influence the above ground biomass of giant reed, as well as yield over time. Evidence is presented indicating that growth is strongly enhanced by water availability (+97% dry weight biomass). Changes in composition were not significant within or among fixed treatments, rather changes were observed over time. A high content of glucans and xylans were detected from early stage, and as the mobilization of minerals increased, lignin content significantly increased as well (from 12% to 36% w/w). These results suggest that an increase in the growth of A. donax in the establishment year is accomplished by a limited use of the water input.

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Section: Discussionsupporting

confidence: 91%

Responses in chemical traits and biomass allocation of Arundo donax L. to deficit resources in the establishment year

Pompeiano

Guglielminetti

Bargiacchi

et al. 2013

Chilean J. Agric. Res.

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show abstract

“…Hereafter, corresponding heights and weights were fitted with power functions (Spencer et al, 2006). Subsequently, the obtained power functions (R 2 = 0.74-0.84) were used to estimate standing biomass in the CWs at the beginning and end of a 51-day period to determine the shoot growth rates.…”

Section: Plant Analysismentioning

confidence: 99%

Treatment of fishpond water by recirculating horizontal and vertical flow constructed wetlands in the tropics

2011

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Common practice of aquaculture in Vietnam and other countries in South East Asia involves frequent discharge of polluted water into rivers which results in eutrophication and degradation of receiving water bodies. There is therefore a need to develop improved aquaculture systems which have a more efficient use of water and less environmental impact. The aim of this study was to assess the suitability of using constructed wetlands (CWs) for the treatment of fishpond water in a recirculating aquaculture system in the Mekong Delta of Vietnam. Water from a fishpond stocked with Nile tilapia (Oreochromis niloticus) and common carp (Cyprinus carpio) was recirculated through horizontal and vertical flow CWs ) at acceptable concentrations for growth of the fish. There was a good removal of organic matter measured as oxygen demand with up to 50% removal of BOD and COD in both types of CWs despite the high loading rates and low concentration levels. However, the vertical flow CWs performed better than the horizontal flow CWs as they had higher nitrification rates and higher DO concentrations in the outlets. The ornamental Canna × generalis planted in the CWs grew faster and took up more N and P in the vertical flow CWs. The aquaculture fish had a feed conversion ratio of 1.53 based on feed dry weight, and 31% and 34% of N and P input, respectively, were incorporated into fish biomass. Only minor quantities of phytoplankton algae were removed in the CWs but abundance of toxic algae such as Microcystis was low. It is concluded that particularly vertical flow CWs have great potential for treatment of fishpond water in recirculating aquaculture systems in the tropics as the discharge of polluted water and the associated environmental impact can be significantly reduced.

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“…Giant reed is invasive in many riparian areas [19] [20] [21], but could serve as an animal fodder or bioenergy resource during its eradication [22]. Fresh, whole-chopped sugarcane is similar to other roughage sources, like cottonseed (Gossypium hirsutum)-hulls, when fed to cattle [11].…”

Section: Introductionmentioning

confidence: 99%

Dual-Use Bioenergy-Livestock Feed Potential of Giant Miscanthus, Giant Reed, and Miscane

Burner¹,

Ashworth²,

Pote³

et al. 2017

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High yielding perennial grasses could integrate bioenergy-livestock operations, thereby, offsetting diversions of cropland to lignocellulosic crops, but research is needed to determine chemical composition and digestibility of leaf and stem fractions that might affect downstream reside uses. The objective of this study was to compare feedstock quality of leaf and stem tissues of dedicated bioenergy feedstocks: giant miscanthus (Miscanthus × giganteus), giant reed (Arundo donax), and miscane (Saccharum hybrid × Miscanthus spp.) when grown with or without supplemental irrigation on an upland site. Three species were space-planted on a silt loam soil in March 2007 and harvested prior to the first freeze in plant-cane, first ratoon, and second-ratoon crops for three years. Giant miscanthus leaf tissue had greatest acid detergent lignin and cellulose, and lowest concentrations of nitrogen (N) and total nonstructural carbohydrates (TNC) in ratoon crops. Giant reed leaf tissue had greatest concentrations of in vitro digestible dry matter (IVDMD), TNC, and N (P ≤ 0.05). Conversely, miscane stem tissue had greatest concentrations of IVDMD, TNC, hemicellulose, and low dry matter and combustible energy (P ≤ 0.05). Results suggest all species' residue has positive feedstock attributes for thermochemical bioenergy conversion, and albeit giant miscanthus has very little potential value as fodder. Miscane stem and giant reed leaf tissue have potential value as livestock feed, although giant reed is not currently recommended for planting. Further research is needed on dietary composition, acceptability, voluntary intake, and live weight gain before any of these species are recommended as livestock feed sources. † Retired.How to cite this paper: Burner,

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Estimating Arundo donax shoot biomass

Cited by 51 publications

References 12 publications

Responses in chemical traits and biomass allocation of Arundo donax L. to deficit resources in the establishment year

Responses in chemical traits and biomass allocation of Arundo donax L. to deficit resources in the establishment year

Treatment of fishpond water by recirculating horizontal and vertical flow constructed wetlands in the tropics

Dual-Use Bioenergy-Livestock Feed Potential of Giant Miscanthus, Giant Reed, and Miscane

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