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

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

Study on freezing strength characteristics and formation mechanism of frozen soil-concrete interface 期刊论文
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2018, 卷号: 34, 期号: 23, 页码: 127-133
作者: He, Pengfei; Ma, Wei; Mu, Yanhu; Dong, Jianhua; Huang, Yongting

收藏 | 浏览/下载：4/0 | 提交时间：2020/11/14

Cementing (shafts) Concrete testing Concretes Freezing Friction Frozen soils Ice Interfaces (materials) Shear stress Soil conservation Strain hardening Stresses Temperature Water conservation Cohesion Fiction coefficient Horizontal displacements Initial water contents Mohr Coulomb strength theory Soil-concrete interfaces Strain hardening behavior Strength characteristics

The influence of freeze-thaw action on loess collapsibility coefficient considering soil structure 期刊论文
Yantu Lixue/Rock and Soil Mechanics, 2018, 卷号: 39, 期号: 8, 页码: 2715-2722 and 2731
作者: Chou, Ya-Ling; Jia, Shu-Sheng; Zhang, Qing-Hai; Cao, Wei; Sehng, Yu

收藏 | 浏览/下载：5/0 | 提交时间：2020/11/14

Freezing Soil cement Soil mechanics Soils Thawing Collapsibility coefficient Freeze thaw actions Initial structures Linear correlation Logarithmic relationship Optimum water content Structural characteristics Undisturbed loess

Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau 期刊论文
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 卷号: 38, 期号: 7, 页码: 2215-2220
作者: Tian Yuan-sheng; Zhang Yue; Sun Wen-yi; Mu Xing-min; Gao Peng

收藏 | 浏览/下载：16/0 | 提交时间：2019/05/23

Biological soil crusts Spectral characteristics Loess Plateau

Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier 期刊论文
BRAZILIAN JOURNAL OF MICROBIOLOGY, 2018, 卷号: 49, 期号: 3, 页码: 443-451
作者: Wu, Xiukun; Zhang, Gaosen; Zhang, Wei; Liu, Guangxiu; Chen, Tuo

收藏 | 浏览/下载：38/0 | 提交时间：2019/10/09

Tianshan No. 1 glacier Foreland Culturable bacteria Soil biochemical characteristics

Experimental study on strength properties of unsaturated intact loess in loess tableland regions 期刊论文
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, 2018, 卷号: 40, 页码: 189-197
作者: Wang, Teng; Zhou, Ming-Ru; Wang, Jin-Wei; Chen, Zhi-Chao

收藏 | 浏览/下载：6/0 | 提交时间：2020/11/14

Critical current density (superconductivity) Deformation Failure (mechanical) Geotechnical engineering Soil testing Structural properties Deformation and strength Deformation Characteristics Effective internal friction angle Intact loess Loess tableland region Strength parameters Suction Variation characteristics

Synthesis, characterization, and the antifungal activity of chitosan derivatives containing urea groups 期刊论文
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2018, 卷号: 109, 页码: 1061-1067
作者: Zhang, Jingjing; Tan, Wenqiang; Zhang, Zhenpeng; Song, Yinping; Li, Qing

收藏 | 浏览/下载：13/0 | 提交时间：2020/07/08

Antifungal activity Beneficial soil microbes Chitosan derivatives Structure characteristics Urea groups

HYDRUS-2D simulation of soil wetting pattern with horizontal moistube-irrigation and analysis of its influencing factors 期刊论文
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2018, 卷号: 34, 期号: 4, 页码: 115-124
作者: Fan, Yanwei; Zhao, Tong; Bai, Guilin; Liu, Wenguang

收藏 | 浏览/下载：5/0 | 提交时间：2020/11/14

Computer simulation High pressure effects Irrigation Soil conditioners Soil moisture Soil surveys Textures Wetting Cumulative infiltrations HYDRUS-2D Initial Moisture Content Initial water contents Irrigation management Soil wetting pattern Wetting characteristics Wetting patterns

The effects of vegetation on runoff and soil loss: Multidimensional structure analysis and scale characteristics 期刊论文
JOURNAL OF GEOGRAPHICAL SCIENCES, 2018, 卷号: 28, 期号: 1, 页码: 59-78
作者: Liu, Jianbo; Gao, Guangyao; Wang, Shuai; Jiao, Lei; Wu, Xing

收藏 | 浏览/下载：27/0 | 提交时间：2019/06/17

runoff soil loss vertical vegetation structure plant diversity vegetation pattern scale characteristics

The effects of vegetation on runoff and soil loss Multidimensional structure analysis and scale characteristics 期刊论文
JOURNAL OF GEOGRAPHICAL SCIENCES, 2018, 卷号: 28, 期号: 1, 页码: 59-78
作者: Liu, Jianbo; Gao, Guangyao; Wang, Shuai; Jiao, Lei; Wu, Xing

收藏 | 浏览/下载：22/0 | 提交时间：2019/06/18

runoff soil loss vertical vegetation structure plant diversity vegetation pattern scale characteristics

在结果中检索

相关链接

CORC

联系我们