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

纳米Fe3O4和碳纳米管对水稻土有机质厌氧分解的影响 学位论文
中国科学院地球化学研究所: 中国科学院大学, 2019
作者: 王倩

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纳米fe3o4 多壁碳纳米管水稻土厌氧分解微生物群落

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

塔里木盆地南缘不同土壤盐分生境下骆驼刺适应特性研究 学位论文
新疆乌鲁木齐: 中国科学院大学, 2017
作者: 罗瀚林

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疏叶骆驼刺极端干旱区盐分生境叶片性状根系分株 Alhagi sparsifolia Shap. extremely arid areas saline habitats leaf trait root ramet

极端干旱区胡杨根系吸水模型的构建 学位论文
新疆乌鲁木齐: 中国科学院大学, 2017
作者: 王玉阳

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塔里木河下游胡杨根系分布根系吸水模型 The lower reaches of Tarim River Populus euphratica root distribution root water uptake models

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

渤海水体中溶解态黑碳的时空分布与来源通量 学位论文
博士, 北京: 中国科学院大学, 2016
作者: 黄国培

收藏 | 浏览/下载：99/0 | 提交时间：2016/07/04

溶解态黑碳渤海时空变化河流入海通量渤海储量

基于放射性核素的山东半岛北部滨海湿地沉积环境演变与有机碳储库的讯息解析 学位论文
博士, 北京: 中国科学院大学, 2016
作者: 王启栋

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放射性核素有机碳环境演变沉积物滨海湿地

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