中国开放科研知识云: 检索

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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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

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党参、黄芪化感作用及党参地上部分化学成分研究 学位论文
北京: 中国科学院大学, 2018
作者: 谢敏

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化感自毒党参黄芪植物生长调节剂 Allelopathy Autotoxic Codonopsis pilosula Astragalus hoantchy Plant growth regulator

林地转变为耕地对紫色土N_2O排放的影响 期刊论文
中国生态农业学报, 2018, 卷号: 26, 期号: 2, 页码: 214-221
作者: (1,2); 刘红兵; 朱波

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林地转变为耕地翻耕施肥氮转化过程 N_2O排放

施肥方式对紫色土农田生态系统N_2O和NO排放的影响 期刊论文
中国生态农业学报, 2018, 卷号: 26, 期号: 2, 页码: 203-213
作者: 肖乾颖; 黄有胜; 胡廷旭; 朱波

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施肥方式紫色土排放量排放系数

基于农户-地块尺度的山区耕地利用ABM模型研究 学位论文
北京: 中国科学院大学, 2018
作者: 李明

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土地利用强度耕地扰动强度农户行为农村环境保护 ABM

长期施肥对紫色土坡地土壤团聚体与磷素赋存形态的影响 学位论文
北京: 中国科学院大学, 2018
作者: 翟龙波

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长期施肥试验紫色土有机物料土壤团聚体磷素

塿土冬小麦–夏玉米轮作体系有机肥替代化肥比例研究 期刊论文
2018, 卷号: 第1期, 页码: 22-32
作者: 吕凤莲; 侯苗苗; 张弘弢; 强久次仁; 周应田

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塿土小麦/玉米轮作有机肥氮产量要素氮效率

稻—稻—油菜轮作土壤细菌群落的特征 期刊论文
应用与环境生物学报, 2018, 卷号: 24, 期号: 2, 页码: 276-280
作者: 张立成[1,3]; 肖卫华[1,2,3]; 彭沛宇; 廖健程; 丁鑫

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轮作连作土壤细菌群落克隆文库

湘东稻—油轮作区氮磷利用效率对化肥减施的响应 期刊论文
核农学报, 2018, 卷号: 第2期, 页码: 353-361
作者: 王玲玲; 董春华; 罗尊长; 邹朝晖; 谢宜

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湘东稻—油轮作化肥减施增效作物周年生物量肥料周年利用效率

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