中国开放科研知识云: 检索

腐殖质对水稻土中砷迁移和微生物群落结构的影响机制研究 学位论文
北京: 中国科学院生态环境研究中心, 2019
作者: 扆幸运

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水稻土，砷迁移转化，腐殖质，微生物，深古菌 Paddy Soils, a Rsenic m Obility , Humic Substance , Microorganisms , Bathyarchaeota

新疆干旱区某金矿厂周边重金属污染特征与风险评价 学位论文
北京: 中国科学院生态环境研究中心, 2019
作者: 杨伟光

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金矿厂，土壤，植物，重金属污染，风险评价 gold Mine, Soils, Plant, Heavy Metal Pollution, Risk Assessment

湿地岸边带亚区尺度微生物群落生态与氮循环模式宏基因组分析 学位论文
北京: 中国科学院生态环境研究中心, 2019
作者: 周立光

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氮循环 Metagenome Soils Sediments Riparian Zone. 宏基因组土壤沉积物岸边带 keywords: Nitrogen Cycle

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

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

水稻土阳极呼吸菌的多样性及其对砷运移的影响 学位论文
北京: 中国科学院研究生院, 2015
作者: 王亚洁

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水稻土砷土壤微生物燃料电池根表铁膜阳极呼吸菌 Paddy Soils Arsenic Soil Microbial Fuel Cells Iron Plaque Anode-respiring Bacteria

pH对土壤硝化作用和氨氧化微生物的影响及其作用机理 学位论文
硕士, 北京: 中国科学院研究生院, 2014
作者: 张苗苗

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酸性土壤 pH 矿化作用硝化作用氨氧化细菌氨氧化古菌氧化钙 acidic soils pH mineralization nitrification ammonia-oxidizing bacteria ammonia-oxidizing archaea liming

快速城市化对北京城市表层土壤碳库的影响研究 学位论文
博士, 北京: 中国科学院研究生院, 2014
罗上华

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城市土壤土壤有机碳土壤呼吸城市化北京市 urban soils soil organic carbon soil respiration urbanization Beijing city

厦门地区花岗岩残积土降雨滑坡模拟试验及土体破坏细观演变规律研究 学位论文
2014, 2014
郑晓栩

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花岗岩残积土力学特性降雨滑坡模拟试验计算机数字图像处理细观演变 granite residual soils mechanical properties rainfall landslide simulation experiments computer digital Image processing meso evolution

典型污灌区土壤和蔬菜中重金属与多环芳烃污染特征及其健康风险评价研究 学位论文
博士, 北京: 中国科学院研究生院, 2012
王艳春

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土壤蔬菜重金属多环芳烃健康风险 soils vegetables heavy metals PAHs health risks

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