Results 21 to 30 of about 661 (156)
Microbial mediation and mechanism derived from electron shuttle on the speciation of arsenic/iron from arsenic-enriched tailing mine sediments [PDF]
沉积物的砷污染及危害对动植物及地下水等生态环境已经构成严重威胁。自然环境中微生物对砷的化学形态及循环方面起重要的作用。但是,微生物驱动金属(砷/铁)还原溶解过程可以是多条路径的,而金属在介质环境的解离/释放过程与环境中微界面中的微生物、外源载体和溶解性有机质(dissolvedorganicmatter,DOM)等密切相关。本文以中国湖南省石门县雄黄尾矿沉积物作为研究对象,通过以几种不同电子中介体——蒽醌-2,6-磺酸钠(anthraquinone-2,6-disulfonate,AQDS ...
陈铮
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Elucidation of Carbon Flow in Microbial Carbon Pump through Membrane Vesicles of Marine Bacteria [PDF]
科学研究費助成事業 研究成果報告書:基盤研究(C)2020-2022 課題番号 : 20K12145research ...
大森 裕子
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Effects of Desert Land Cultivation on Soil Aggregate Stability and Carbon Fixation [PDF]
[Objective] The response of soil aggregate stability and organic carbon before and after land reclamation using different land use types were analyzed in order to provide a scientific theoretical basis for wasteland reclamation, vegetation restoration ...
Chen Xue +4 more
core +1 more source
Joint Extraction Method for Spatial Relations in Chinese Geological Texts
Abstract Extracting spatial relations of geological entities is an important prerequisite for achieving natural language processing tasks such as geological knowledge question answering and semantic search, and is an important means to achieve structural reconstruction of unstructured geological data.
Chuan Chen +9 more
wiley +1 more source
Producing biochars from biogas residue to adsorb aqueous As(III) [PDF]
三价砷是目前致癌性最高的重金属,其毒性强、难吸附等问题成为急需解决的难题。厌氧生物产甲烷过程中产生大量的沼渣,将沼渣资源化利用是目前生物甲烷过程中首先要解决的问题之一,因此本文将沼渣活化后制备成生物炭和介孔生物炭以实现沼渣的资源化利用,并应用在水中三价砷的去除过程,进一步分析生物炭和介孔生物炭对三价砷的吸附过程和吸附机理。主要研究成果如下: 1.通过绝氧热解法在700oC下制备了纯生物炭(BC),并采用不同活化剂KOH,NaOH,FeCl3,AlCl3,ZnCl2制备了活化后的生物炭 ...
夏东
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Using genomic data from 285 species across 19 planthopper families, we conducted the first phylogenomic study targeting global planthoppers and inferred their phylogeny with the highest resolution so far. We proposed taxonomic changes including the establishment of a new family Borysthenidae stat. rev. and a new superfamily Meenoploidea superfam.
Junchen Deng +9 more
wiley +1 more source
研究生物炭和功能菌剂协同调控沙化土壤养分和微生物多样性与功能,可为沙化土壤肥力培育提供理论依据。选择毛乌素沙地典型生态经济林沙化土壤为研究对象,采用田间定位试验,运用高通量扩增测序技术,解析不同添加量(2%,4%,8%)生物炭处理及其配施定量功能菌剂(枯草芽孢杆菌+巨大芽孢杆菌+胶质芽孢杆菌)处理对土壤化学性质及细菌菌群多样性与功能的影响。结果表明:(1)与单一生物炭处理相比,生物炭+功能菌剂处理组土壤有效氮、磷养分含量分别提升44.71%和187.36%;(2 ...
王红萍 +6 more
doaj
不同生物炭材料的制备及其在Li-S电池中的应用(英文) [PDF]
通过可再生生物质制备的生物炭具有成本低、环保和资源可再生的优势。本研究以分布广泛的稻谷壳、芒草、杉木和柚子皮等生物质为原料,制备了4种不同类型生物炭,然后研究了其作为锂-硫电池硫/碳正极的载体的性能。研究表明由稻谷壳制备的硫/生物炭正极材料表现出最高的比容量和最优的循环稳定性。为了进一步改善其电性能,以SiO溶胶为模板制备了具有高孔隙率的稻谷壳生物炭,其多孔结构可有效抑制多硫化物的溶解。由此得到的硫/生物炭(硫含量为60%(w,质量分数))材料中的硫以无定型态均匀地分散在碳载体中 ...
吴娇红, 张涛, 李君涛, 黄令
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Non-radical pathway dominated highly efficient degradation of norfloxacin using persulfate activation with iron-based biochar [PDF]
In recent years, the removal of new pollutants has been widely concerned. The antibiotic norfloxacin, a typical emerging contaminant, is capable of concentrating in large quantities in the soil and threatening human health.
Congcong WANG, Jiawei CHEN
core +1 more source
An assessment of future rewilding potential in the United Kingdom
Abstract Restoring ecosystems is an imperative for addressing biodiversity loss and climate change, and achieving the targets of the Kunming–Montreal Global Biodiversity Framework. One form of restoration, rewilding, may have particular promise but may also be precluded by requirements for other forms of land use now or in the future.
C. Brown, R. Prestele, M. Rounsevell
wiley +1 more source

