The productivity effects of macroalgal biochar from Ulva Linnaeus bloom species on Arabidopsis thaliana Linnaeus seedlings
The productivity effects of macroalgal biochar from Ulva Linnaeus bloom species on Arabidopsis thaliana Linnaeus seedlings
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石莼水华物种巨藻生物炭对拟南芥幼苗生产力的影响
DOI：
10.1080/09670262.2022.2103739
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发表时间：
2022
影响因子：
2.4
通讯作者：
Kenneth F
中科院分区：
文献类型：
--
作者：
Kenneth F
集约化的农业做法和对有机废物管理不善对水生生态系统产生不利影响，在那里可能会发生大型藻类过度繁殖而形成“绿潮”，从而对环境、生态和社会经济产生负面影响。将有问题的材料转化为有价值的资源的一种新方法是将多余的藻类生物质用作生产生物炭的原料。这种资源具有高元素组成，可能适合于修复土壤不足和改善土壤肥力。刚性)，管状(主要是U。增殖)和混合形态(U.rigidaandU.表型，用来生产生物炭。通过室内盆栽试验，研究了用藻类生物炭改良高肥和低肥堆肥(分别以0、0.5、1、2和5%w/w的比例施入)对拟南芥生长的影响。在类似的处理下，使用一种商用木质生物炭作为对照。每周成像和最终收获重量提供了额外的生长数据；成分数据包括最终分析和工业分析，pH，Brunauer-Emmett-Teller(BET)表面积和干燥的大型藻类和藻类生物炭的加氢热解。在高或低肥料堆肥中，使用生物炭改良剂生长的苗木没有显著的促进生长，在高肥土壤中添加5%w/w的藻类生物炭显著降低了植物的生长。元素分析表明，藻类生物炭中含有大量的碱性元素，包括钠。据推测，尽管藻类来自河口环境，但盐度是影响生物炭施用量较高时植物生长的主要因素。生物炭的来源和组成是非常重要的：使用笼统的术语‘生物炭’忽略了可以用来创造它的材料和组成的范围以及它在土壤中的后续影响。第一次使用主要来自藻类的生物炭的植物试验。使用5%的藻类生物炭对植物生长的负面影响。高钠浓度被认为是减少植物生长的原因。
Intensive agricultural practices and poor management of organic waste have adverse effects on aquatic ecosystems, where excessive macroalgal proliferation can occur to form ‘green tides’, with negative environmental, ecological and socioeconomic impacts. One novel method for converting a problematic material into a valuable resource is to use excess algal biomass as a feedstock for biochar production. With a high elemental composition, such a resource might be suitable to redress soil deficiencies and to ameliorate soil fertility.Green macroalgae from theUlvagenus, in bladed (predominantlyU. rigida), tubular (predominantlyU. prolifera) and mixed morphological (U. rigidaandU. prolifera) phenotypes, were used to produce biochars. A pot trial within a controlled-environment chamber was carried out to determine the effects of amending high- and low-fertilizer compost with algal biochars (applied at 0, 0.5, 1, 2 and 5% w/w) on the growth rate ofArabidopsis thaliana. A commercial wood-based biochar was used under similar treatments as a control. Weekly imaging and final harvest weights provided additional growth data; composition data including ultimate and proximate analyses, pH, Brunauer–Emmett–Teller (BET) surface area and hydropyrolysis of the dried macroalgae and algal biochars were also conducted.Significant enhanced growth in seedlings grown with biochar amendment were not observed in high- or low-fertilizer compost, and the addition of algal biochars at 5% w/w to high-fertilizer soil significantly reduced plant growth. Elemental analysis revealed that the algal biochars contained high quantities of alkaline elements including sodium. It was hypothesised that salinity was the primary factor affecting plant growth at higher biochar application rates, despite the algae being sourced from an estuarine environment. Biochar provenance and composition is highly significant: using the catch-all term ‘biochar’ ignores both the range of materials and composition that could be used to create it and its subsequent impact within the soil.HIGHLIGHTSFirst plant trial using biochar predominantly fromUlvaspecies.Negative impact seen with 5% algal biochar on plant growth.High sodium concentrations putatively identified as reduced plant growth cause.
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欧洲燃料规格和固体生物燃料类别标准
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
E. Alakangas
通讯作者：
E. Alakangas
石灰和木炭改良剂可减少珍珠岩-泥炭培养基中培养的植物对氟化物的吸收1
影响因子：
1.9
作者：
R. Sheldrake;G. Doss;L. S. John;D. Lisk
通讯作者：
D. Lisk
影响因子：
2.1
作者：
ZOBEL, RW;WRIGHT, MJ;GAUCH, HG
通讯作者：
GAUCH, HG
影响因子：
3.8
作者：
Lakens D
通讯作者：
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粉煤灰上的植物营养
影响因子：
4.9
作者：
W. Rees;G. Sidrak
通讯作者：
G. Sidrak