中国开放科研知识云: 检索

土壤-植物系统中砷迁移转化的关键调控因子研究 学位论文
北京: 中国科学院生态环境研究中心, 2020
作者: 杨雨萍

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农田土壤，植物，砷，生物地球化学循环，有机质 farmland Soil, Plant, Arsenic, Biogeochemical Cycling, Organic Matter

土壤矿物对土壤可溶性有机质分子多样性的影响 学位论文
北京: 中国科学院生态环境研究中心, 2019
作者: 黄灶泉

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可溶性有机质，分子多样性，土壤矿物，分子分馏，傅立叶变换离子回旋共振质谱 Dissolved Organic Matter, Molecular Diversity, Soil Mineral, Molecular Fractionation, Ft-icr Ms

基于高分辨质谱的土壤溶解性有机质化学多样性研究 学位论文
北京: 中国科学院生态环境研究中心, 2018
作者: 李晓明

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土壤溶解性有机质，化学多样性，微生物多样性，傅立叶变换离子回旋共振质谱 decreased WIth IncreasIng Iron ComplexIng Index. PAtterns In Molecular PrOfiles IndicAted Dom In Paddy Soils To Become More RecalcItrAnt At Higher Soil C/n rAtio And Higher Soil Ph. furTherMore, PlAnt-derived polyPh.nols And Pyrogenic Dom Were retaIned Favorably By Iron And The ChemodiversIty Of Dom In Paddy Soil Increased WIth IncreasIng Soil C/n rAtios. These Results Provide Novel InFormAtion regardIng Dom Characteristics At a Molecular Level And Will InForm Better Global MAnagement Of Soil Carbon In Paddy Soil EcosysteMs Global. 2) Through The applicAtion Of Ft-icr-Ms, The ChemodiversIty Of Dom In Soil Subjected To Long-term OrgAnic Carbon And InOrgAnic Fertilizer Amendments Was Established. In Parallel, Bcc Was Assessed. Through This Coupled Approach It Was Established.thAt sustaIned OrgAnic Carbon Amendment Resulted In: SignificAntly (p < 0.05) Increased Total Carbon And Total nItrogen Reservoirs In Soil, Dom PrOfiles Of greAter ChemodiversIty, And Emergence Of RecalcItrAnt Dom Moieties (H/c < 1.5). In Contrast, Carbon And nItrogen Reservoirs In Soil Subjected To sustaIned InOrgAnic Fertilizer applicAtion Were Unaltered, While Soil OrgAnic Carbon ChemodiversIty Was Observed To Shift To Less RecalcItrAnt Dom Moieties (H/c rAtio > 1.5 And O/c rAtios < 0.5). furTherMore, sustaIned OrgAnic Carbon Amendment Shaped Bcc To a eutroPh.c stAte While Long-term Chemical fertilizAtion Directed The Bcc Towards An oligotroPh.c stAte. Higher connectivIty And Network complexIty Were Observed In OrgAnic Carbon Amended Soils. Dom-Bcc Network Analysis, IndicAtIng thAt Soil Microbes Had More Interaction WIth Dom Molecules followIng sustaIned OrgAnic mAtter Input. These Results Highlight The Potential For OrgAnic Carbon Amendments To Not Only Build Soil Carbon sTocks And Increase Their Resilience, But To Also Improve The Functional stAte Of Soil Microbial communIties. Key Words: Dom, ChemodiversIty, Microbial diversIty, Ft-icr Ms

基因工程菌与生物质联合强化土壤中砷挥发研究 学位论文
北京: 中国科学院生态环境研究中心, 2017
作者: 陈鹏

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砷修复 Arsenic 生物挥发 Remediation 生物刺激 Biovolatilization 生物强化 Biostimulation Bioaugmentation

水陆交错界面氧化还原状况变化特征与氨氮吸附机理 学位论文
硕士, 北京: 中国科学院研究生院, 2016
作者: 黄维

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Wetlands, Ecotones, Oxidation-Reduction (Redox), Ammonia Nitrogen, Adsorption, Interaction of River and Lake, Water Level Fluctuation

黄土丘陵区坝地沉积序列重构及来源定量示踪 学位论文
博士后, 北京: 中国科学院研究生院, 2016
作者: 唐强

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黄土高原 Loess Plateau 土壤侵蚀 soil erosion 泥沙来源 sediment source 断代 dating 生态修复 ecological restoration 淤地坝 check dam

油气输送管道建设对农田生态系统影响的定量评价 学位论文
博士, 北京: 中国科学院研究生院, 2015
作者: 时鹏

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环境影响定量评价，农田生态系统，生态累积影响，生态补偿，油气管道建设，Quantitative environmental impact assessment, Agro-ecosystem, Commulative ecological effect, Eco-compensation, Pipeline construction

新型杀菌剂肟菌酯的环境行为研究 学位论文
博士, 北京: 中国科学院研究生院, 2014
作者: 刘慧君

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肟菌酯环境行为降解吸附迁移生物富集 Trifloxystrobin Environmental Behaviors Degradation Adsorption Migration Bioaccumulation

两类纳米材料的特性及其污染复合体系的生物效应与影响机制 学位论文
博士, 北京: 中国科学院研究生院, 2014
苏宇

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碳纳米管纳米二氧化钛结构特性界面反应生物效应 carbon nanotubes (CNTs) titanium dioxide nanoparticles (nTiO2) structural property interfacial reaction biological effects

青藏高原湖泊沉积物中多环芳烃和有机氯农药的沉积记录 学位论文
硕士, 北京: 中国科学院研究生院, 2014
作者: 谢婷

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多环芳烃（PAHs）有机氯农药（OCPs）青藏高原湖泊沉积物高山湖泊 polycyclic aromatic hydrocarbons (PAHs) organochlorine pesticides (OCPs) Tibetan Plateau lake sediment alpine lake

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