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Mechanisms of organic-instead fertilization for coupling nitrogen supply and retention in cropland of purplish soil 学位论文
北京: 中国科学院大学, 2020
作者:  HAMIDOU BAH
收藏  |  浏览/下载：49/0  |  提交时间：2021/01/18
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  
艾比湖流域沉积物元素地球化学特征及其揭示的环境信 学位论文
新疆乌鲁木齐: 中国科学院大学, 2017
作者:  丁之勇
收藏  |  浏览/下载：30/0  |  提交时间：2018/12/28
艾比湖流域沉积物元素地球化学特征及其揭示的环境信息 学位论文
新疆乌鲁木齐: 中国科学院大学, 2017
作者:  丁之勇
收藏  |  浏览/下载：35/0  |  提交时间：2018/12/28
施肥及秸秆还田对中国农田土壤固碳、温室气体排放及粮食产量的影响 学位论文
博士, 北京: 中国科学院研究生院, 2015
作者:  赵红
收藏  |  浏览/下载：311/0  |  提交时间：2016/08/23
内蒙古地区城市垃圾厌氧发酵沼液的梯度处理及其资源化利用研究 学位论文
硕士, 北京: 中国科学院研究生院, 2015
作者:  曹汝坤
收藏  |  浏览/下载：58/0  |  提交时间：2016/08/03
不同土壤有机碳水平桉树林施氮的环境效应研究 学位论文
博士, 北京: 中国科学院研究生院, 2015
作者:  张凯
收藏  |  浏览/下载：32/0  |  提交时间：2016/08/11
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
收藏  |  浏览/下载：381/0  |  提交时间：2015/06/24
施氮对不同土壤有机碳水平桉树人工林温室气体通量的影响 学位论文
硕士, 北京: 中国科学院研究生院, 2014
作者:  李睿达
收藏  |  浏览/下载：58/0  |  提交时间：2015/06/30
基于微生物全细胞传感器(组)的土壤镉、铅、砷 生物可利用度检测和评价研究 学位论文
博士, 北京: 中国科学院研究生院, 2014
侯启会
收藏  |  浏览/下载：176/0  |  提交时间：2015/06/16

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