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成都山地灾害与环境研... [2]
生态环境研究中心 [2]
成都理工大学 [1]
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学位论文 [3]
期刊论文 [2]
发表日期
2018 [5]
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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
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浏览/下载:24/0
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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
黄土丘陵区整地与植被恢复耦合作用的生态水文效应
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
冯天骄
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提交时间:2019/07/01
黄土高原,整地方式,植被恢复,土壤生态系统,理化性质,水文循环
Loess Plateau, Land Preparation, Vegetation Restoration, Soil Ecosystem, Water Balance
藏柏人工林生物量和土壤养分含量研究
学位论文
2018
作者:
王延茹
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提交时间:2019/12/13
西藏柏木
生物量
碳储量
生产力
土壤养分
施肥方式对土壤活性有机碳及碳库管理指数的影响
期刊论文
浙江农业学报, 2018, 卷号: 30, 期号: 8, 页码: 1389-1397
作者:
罗原骏
;
蒲玉琳
;
龙高飞
;
叶春
;
朱波
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浏览/下载:12/0
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提交时间:2020/11/23
有机肥
秸秆还田
紫色土
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