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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
收藏  |  浏览/下载：24/0  |  提交时间：2020/07/15
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  
北京密云水库内湖消落带有机质、营养盐(氮/磷)含量分布特征 期刊论文
湖泊科学, 2016, 卷号: 28, 期号: 4, 页码: 794-801
作者:  秦丽欢;  曾庆慧;  李叙勇;  秦耀民
收藏  |  浏览/下载：41/0  |  提交时间：2017/05/31
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
收藏  |  浏览/下载：112/0  |  提交时间：2015/06/12
矿区复垦植被类型和施肥对植被和微生物群落的影响 学位论文
博士后, 北京: 中国科学院研究生院, 2013
李君剑
收藏  |  浏览/下载：93/0  |  提交时间：2014/08/20
城市化对城区和郊区森林土壤氮循环的影响 期刊论文
土壤通报, 2012, 卷号: 1, 期号: 4, 页码: 842-848
陈帅; 王效科; 逯非; 冯兆忠
收藏  |  浏览/下载：18/0  |  提交时间：2014/12/04
北京城区与郊区土壤碳氮循环的差异研究 学位论文
硕士, 北京: 中国科学院研究生院, 2011
作者:  陈帅
收藏  |  浏览/下载：94/0  |  提交时间：2016/12/30
华北超渗产流模式下农业非点源污染发生机制与控制途径研究 学位论文
博士, 北京: 中国科学院研究生院, 2004
王夏晖
收藏  |  浏览/下载：61/0  |  提交时间：2011/12/14

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