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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  
反应-传质对颗粒形貌调控机制的研究 学位论文
: 中国科学院研究生院, 2018
作者:  杨涛
收藏  |  浏览/下载：75/0  |  提交时间：2019/03/29
多孔六方氮化硼的调控制备与金属离子的吸附性能研究 学位论文
: 中国科学院研究生院, 2018
作者:  张晶
收藏  |  浏览/下载：87/0  |  提交时间：2019/03/29
面向海绵城市的生态安全格局研究 学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:  李欢欢
收藏  |  浏览/下载：86/0  |  提交时间：2019/07/05
激光毛化形貌对高速轮轨水润滑及冰润滑 黏着系数的影响 学位论文
北京: 中国科学院大学, 2018
作者:  王保安
收藏  |  浏览/下载：42/0  |  提交时间：2018/06/05
蠕墨铸铁脉冲激光变幅热疲劳实验及裂纹演变研究 学位论文
北京: 中国科学院大学, 2018
作者:  潘斯宁
收藏  |  浏览/下载：82/0  |  提交时间：2018/05/29
蒸发液滴中的胶体颗粒沉积机制与空间实验研究 学位论文
北京: 中国科学院大学, 2018
作者:  李伟斌
收藏  |  浏览/下载：103/0  |  提交时间：2018/05/31
高超声速进气道再起动特性影响规律研究 学位论文
北京: 中国科学院大学, 2018
作者:  贾轶楠
收藏  |  浏览/下载：69/0  |  提交时间：2018/05/29
典型流式机器学习算法并行化设计与实现 学位论文
硕士, 北京: 中国科学院研究生院, 2018
作者:  沈雯婷
收藏  |  浏览/下载：119/0  |  提交时间：2018/06/12
极值方法在分子模拟中的计算效率和可靠性研究 学位论文
北京: 中国科学院大学, 2018
作者:  双飞
收藏  |  浏览/下载：55/0  |  提交时间：2018/05/23

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