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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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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

Manure and Mineral Fertilizer Effects on Crop Yield and Soil Carbon Sequestration: A Meta-Analysis and Modeling Across China 期刊论文
GLOBAL BIOGEOCHEMICAL CYCLES, 2018, 卷号: 32, 期号: 11, 页码: 1659-1672
作者: Jiang, Guiying; Zhang, Wenju; Xu, Minggang; Kuzyakov, Yakov; Zhang, Xubo

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manure carbon sequestration long-term experiments RothC model climate change

Effects of Different Grazing Intensities on Soil C, N, and P in an Alpine Meadow on the QinghaiTibetan Plateau, China 期刊论文
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 11, 页码: 16
作者: Li, Gang; Zhang, Zhi; Shi, Linlu; Zhou, Yan; Yang, Meng

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alpine meadow grazing intensity soil carbon soil nitrogen soil phosphorus

Mineral N stock and nitrate accumulation in the 50 to 200 m profile on the Loess Plateau 期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 卷号: 633, 页码: 999-1006
作者: Jia, Xiaoxu; Zhu, Yuanjun; Huang, Laiming; Wei, Xiaorong; Fang, Yunting

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Nitrate Ammonium Nitrate accumulation Critical zone The Loess Plateau

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

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土壤碳氮储量 Soc And Tn Stocks C-n Interaction Deep Soil Precipitation Gradient Land-use Combination Loess Plateau c-n关系深层土壤降水梯度土地利用组合黄土高原

Effects of soil aggregate stability on soil N following land use changes under erodible environment 期刊论文
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2018, 卷号: 262, 页码: 18-28
作者: Zhu, Guangyu; Deng, Lei; Shangguan, Zhouping

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Ammonium-N Apple orchard Land use change Nitrate-N the loess plateau

Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China 期刊论文
CATENA, 2018, 卷号: 166, 页码: 310-316
作者: Qiao, Jiangbo; Zhu, Yuanjun; Jia, Xiaoxu; Huang, Laiming; Shao, Ming'an

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Earth's critical zone Nitrogen Phosphorus Vertical distribution

Effects of permafrost thaw-subsidence on soil bacterial communities in the southern Qinghai-Tibetan Plateau 期刊论文
APPLIED SOIL ECOLOGY, 2018, 卷号: 128, 页码: 81-88
作者: Wu, Xiaodong; Zhao, Lin; Liu, Guimin; Xu, Haiyan; Zhang, Xiaolan

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Permafrost Bacterial communities Qinghai-Tibetan Plateau Subsidence Organic carbon Illumina dye sequencing

Does the accelerated soil N cycling sustain N demand of Quercus mongolica after decade-long elevated CO2 treatment? 期刊论文
BIOGEOCHEMISTRY, 2018, 卷号: 139, 期号: 2, 页码: 197-213
作者: Sun, Jianfei; Dai, Weiwei; Peng, Bo; Liu, Jun; He, Tongxin

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Climate Change c And n Stocks c And n Cycling Gross n Transformation Delta C-13 And Delta N-15 Progressive n Limitation

Effects of revegetation and precipitation gradient on soil carbon and nitrogen variations in deep profiles on the Loess Plateau of China 期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 卷号: 626, 页码: 399-411
作者: Chang, Ruiying; Tuo, Dengfeng; Gao, Guangyao; Fu, Bojie; Wang, Cong

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Soil C and N stocks C and N interaction Deep layer Precipitation gradient Vegetation restoration

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