Though from the dataset available it was not possible to unequivocally predict the Cs-soil-to-wood-transfer, the generally low TFs observed point to the particular suitability for establishment of SRC on radiocaesium-contaminated land. SRC willow could also be used to treat waste water high in nutrient levels. Slow expansion and low yields of willow short rotation coppice in Sweden. in the last decade, the use of agro-forestry practices such as short rotation coppice (src) with high biomass producing tree clones has attracted great attention by hmcs owners, managers and policy makers because it can combines bioenergy production, risks attenuation, and restoration of soil fertility and ecosystem services ( van slycken et al. SRC willow is a sustainable land use in catchments where traditional farming land use reduces lake water quality through nitrification of the eco-system. Among such crops for energy biomass, short rotation willow crops (SRCs) can. Differences in the ageing rate of radiocaesium in the soil (hypothesised fraction of bioavailable caesium subjected to fast ageing for Trödje soils only 1% compared to other soils), exchangeable soil K (0.8-1.8 meq kg(-1) for Trödje soils and 1.5-5.8 meq kg(-1) for the other soils) and the ammonium concentration in the soil solution (0.09-0.31 mM NH4+ for the Trödje soils compared to 0.003-0.11 mM NH4+ for the other soils) are put forward as potential factors explaining the higher CF and TF observed for the Trödje soils. Short Rotation Coppice willow provides an opportunity to widen the sources of biomass for heat and transport fuels. The wood-soil solution 137Cs concentration factor (CF) was significantly related to the potassium concentration in the soil solution. Apart from the weak yet significant exponential correlation between the Cs-TF and the solid/liquid distribution coefficient (R2 = 0.54) or the radiocaesium interception potential, RIP (R2 = 0.66), no single significant correlations between soil characteristics and TF were found. The TF recorded was generally small (0.00086-0.016 kg kg(-1)), except for willows established on sandy soil (0.19-0.46 kg kg(-1)). The soil-to-wood transfer factor (TF) of radiocaesium differed significantly between soil types. The soils differed among others in clay fraction (3-34%), radiocaesium interception potential (515-6884 meq kg(-1)), soil solution K (0.09-0.95 mM), exchangeable K (0.58-5.77 meq kg(-1)) and cation exchange capacity (31-250 meq kg(-1)). Slide 1 Short Rotation Coppice Willow Salix Viminalis L. There was only one plot where willow stands of different maturity (R6S2 and R5S4: R, root age and S, shoot age) and clone (Rapp and L78183 both of age category R5S4) were sampled and no significant differences were found. The effects of crop age, clone and soil type on the radiocaesium levels in the wood were assessed following sampling in 14 existing willow SRC fields, planted on radiocaesium-contaminated land in Sweden following Chernobyl deposition. #Willow short rotation coppice full#Users should refer to the original published version of the material for the full abstract.The feasibility of willow short rotation coppice (SRC) for energy production as a revaluation tool for severely radiocaesium-contaminated land was studied. No warranty is given about the accuracy of the copy. However, users may print, download, or email articles for individual use. Work on short-rotation coppice willow as an alternative and renewable energy source began in Northern Ireland in the mid-1970s, prompted by the massive rise. Copyright of BioEnergy Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission.Sewage sludge applications were not responsible for the elevated PO-P leaching under SRC compared to reference crops. The opposite was observed for PO-P concentrations in the groundwater of SRC were higher compared to reference fields. Eastern Canada is one region where willow short-rotation coppice has been the focus of numerous research projects over the last 15-20 years. NO-N leaching from willow SRC fields was significantly lower than that from reference fields with cereals. The study was conducted in 16 locations under three vegetation seasons. This study evaluated the effects of SRC on water quality by determining differences in leaching of nitrogen and phosphorus to groundwater of a number of commercial 'old' SRC willow stands in Sweden compared to adjacent arable fields grown with 'ordinary' crops. Abstract: Short rotation coppice (SRC) with willow has been grown in Sweden from the late 1980s to produce biomass for energy on agricultural land.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |