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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

热带典型森林生态系统穿透雨时空特征 学位论文
北京: 中国科学院生态环境研究中心, 2018
作者: 赵赫

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穿透雨,空间格局,时间稳定性,热带,土地利用变化 Throughfall, Spatial Pattern, Temporal Stability, Tropics, Land Use Change

污染河流浮游动物群落空间分布格局成因解析 学位论文
北京: 中国科学院大学, 2017
作者: 熊薇

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污染河流生物多样性 Highly Polluted River Ecosystems 浮游动物群落 Biodiversity 环境选择作用 Zooplankton Communities 扩散作用 Species Sorting Dispersal

湿地系统氨氧化微生物的分布及对氨氮去除的贡献 学位论文
北京: 中国科学院大学, 2017
作者: 苏瑜

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芦苇湿地氨氮 Reed Wetland 氨氧化微生物 Ammonium Nitrogen 氨氧化速率 Ammonia-oxidizing Microorganisms 群落生态学 Ammonium Oxidation Rate Community Ecology

荒漠和草原生态系统丛枝菌根真菌多样性和群落结构比较研究 学位论文
北京: 中国科学院大学, 2017
作者: 李雪静

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Amf 荒漠 Arbuscular Mycorrhizal Fungi (Amf) 草原 Desert 环境因子 Steppe 群落结构 Environmental Factors Community Structure

城市生态系统氮代谢排放特征分析 学位论文
北京: 中国科学院大学, 2017
作者: 冼超凡

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活性氮排放强度 Reactive Nitrogen 氮溯源 Emission Intensity 氮补偿 Nitrogen Source Apportionment 城市化 Nitrogen Offset Urbanization

利用有机地球化学指标研究几种入海有机污染物的环境行为 学位论文
博士后, 北京: 中国科学院研究生院, 2016
作者: 赵宗山

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有机地球化学指标 organic geochemical index 有机污染物 POPs 来源 sources 归宿 fate 生物标志物 biomarker

全球气候变化背景下高寒区土壤微生物的演变特征 学位论文
北京: 中国科学院研究生院, 2016
作者: 曾军

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全球气候变化高寒区 Global Climate Change 暖湿化 Alpine Ecosystem 冰川退缩 Warming And Wetting Climate Change 土壤微生物 Soil Microbial Community 演变特征 Successional Pattern

改性土壤技术调控富营养化水体营养盐限制的研究 学位论文
博士, 北京: 中国科学院研究生院, 2016
作者: 王丽静

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营养盐限制，蓝藻藻华，绿藻藻华，改性当地土壤，全塘实验 Nutrient limitation, Cyanobacterial blooms, Chlorophytes blooms, Modofied local soils, Whole pond experiment

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

收藏 | 浏览/下载：111/0 | 提交时间：2017/07/07

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

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