中国开放科研知识云: 检索

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：57/0 | 提交时间：2021/07/05

土地利用 Climate Change Soil Organic Carbon Total Nitrogen Soil Ecosystem Service 气候变化土壤有机碳总氮土壤生态服务 land Use

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

收藏 | 浏览/下载：56/0 | 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

城市不同地表覆盖类型下土壤有机碳矿化的差异 期刊论文
生态学报, 2017, 卷号: 38, 期号: 01, 页码: 112-121
作者: 甘德欣; 李隽永; 窦晓琳; 胡印红; 李锋

收藏 | 浏览/下载：38/0 | 提交时间：2019/03/14

城市地表覆盖类型有机碳矿化固碳硬化地表

黑河中游土壤性质变异及其与植被分布的关系研究 学位论文
博士后, 北京: 中国科学院研究生院, 2016
作者: 李丹凤

收藏 | 浏览/下载：119/0 | 提交时间：2017/07/11

土壤有机碳 Soil organic carbon 土壤水分特征曲线 Soil water characteristic curve 模型模拟 Model simulation 土壤水分 Soil moisture 植被分布 Vegetation distribution

基于性状的黄土高原草地生物多样性与生态系统功能 学位论文
博士, 北京: 中国科学院研究生院, 2015
作者: 朱火星

收藏 | 浏览/下载：30/0 | 提交时间：2016/08/16

群落构建，生物多样性-生态系统功能，植物功能性状，响应-影响框架，生境过滤。生态位分化，生物量比假设，多样性假设, community assembly, biodiversity-ecosystem functioning, trait-based approach, habitat filtering, niche differentiation, response-effect framework

施肥及秸秆还田对中国农田土壤固碳、温室气体排放及粮食产量的影响 学位论文
博士, 北京: 中国科学院研究生院, 2015
作者: 赵红

收藏 | 浏览/下载：350/0 | 提交时间：2016/08/23

施肥秸秆还田固碳温室气体排放产量，Fertilization straw incorporation greenhouse gas emission cereal yield

黄土高原优势灌丛营养器官化学计量特征的环境分异和机制 期刊论文
植物生态学报, 2015, 期号: 5, 页码: 453-465
作者: 李单凤; 于顺利; 王国勋; 方伟伟

收藏 | 浏览/下载：21/0 | 提交时间：2016/03/23

化学计量特征黄土高原灌丛群落耦合性水热梯度资源分配

黑河中游荒漠绿洲区土地利用变化对土壤理化特征的影响 学位论文
硕士, 北京: 中国科学院研究生院, 2013
马志敏

收藏 | 浏览/下载：52/0 | 提交时间：2014/08/29

荒漠绿洲区土地利用土壤养分土壤水分物理性质土壤碳储量 Oasis and desert ecotone land use soil nutrient soil moisture and physical properties soil carbon storage

城市地表硬化的复合生态效应及生态化改造方法 学位论文
博士, 北京: 中国科学院研究生院, 2013
赵丹

收藏 | 浏览/下载：31/0 | 提交时间：2014/07/15

城市地表硬化生态改造生物碳氮循环 Urban soil sealing ecological reconstruction organisms carbon and nitrogen cycles

在结果中检索

相关链接

CORC

联系我们