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| 基于DNDC模型的 土地利用和气候变化对土壤碳氮储量影响的模拟研究 学位论文
北京: 中国科学院生态环境研究中心, 2020
作者: 李守娟
  收藏 | 浏览/下载：56/0 | 提交时间：2021/07/05
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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
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| 硬化地表对土壤微生物群落结构和功能多样性的影响 学位论文
北京: 中国科学院生态环境研究中心, 2019
作者: 于伟伟
收藏 | 浏览/下载：116/0 | 提交时间：2020/07/29
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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 |
| 黄土高原降水梯度和土地利用组合 对土壤碳氮变化的影响 学位论文
北京: 中国科学院生态环境研究中心, 2018
作者: 脱登峰
收藏 | 浏览/下载：75/0 | 提交时间：2019/07/24
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| 水氮调控对高寒草原土壤微生物碳源利用的影响 学位论文
北京: 中国科学院大学, 2018
作者: 张梦瑶
收藏 | 浏览/下载：20/0 | 提交时间：2019/01/23
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| 黄河三角洲滨海湿地铁循环微生物多样性和电活性 学位论文
博士, 北京: 中国科学院大学, 2017
作者: 张洪霞
收藏 | 浏览/下载：83/0 | 提交时间：2017/06/23
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| 氮肥管理措施对新疆膜下滴灌棉田温室气体排放的影响 学位论文
新疆乌鲁木齐: 中国科学院大学, 2017
作者: 马志雯
收藏 | 浏览/下载：33/0 | 提交时间：2018/12/29
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| 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
收藏 | 浏览/下载：22/0 | 提交时间：2018/12/29
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| 黄土高原样带土壤水分空间变异与动态模拟 学位论文
北京: 中国科学院大学, 2017
作者: 王聪
收藏 | 浏览/下载：44/0 | 提交时间：2018/06/29
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