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《农业科学与工程前沿(英文)》 2022年 第9卷 第2期 页码 284-294 doi: 10.15302/J-FASE-2021435
Bioenergy, currently the largest renewable energy source in the EU (64% of the total renewable energy consumption), has sparked great interest to meet the 32% renewable resources for the 2030 bioeconomy goal. The design of innovative cropping systems informed by bioeconomy imperatives requires the evaluate of the effects of introducing crops for bioenergy into conventional crop rotations. This study aimed to assess the impacts of changes in conventional cropping systems in mixed dairy cattle farms redesigned to introduce bioenergy crops either by increasing the biomass production through an increase of cover crops, while keeping main feed/food crops, or by substituting food crops with an increase of the crop rotation length. The assessment is based on the comparison between conventional and innovative systems oriented to feed and biogas production, with and without tillage, to evaluate their agri-environmental performances (biomass production, nitrogen fertilization autonomy, greenhouse gas emissions and biogas production). The result showed higher values in the biogas cropping system than in the conventional and feed ones for all indicators, biomass productivity (27% and 20% higher, respectively), nitrogen fertilization autonomy (26% and 73% higher, respectively), methanogenic potential (77% and 41% higher, respectively) and greenhouse gas emissions (15% and 3% higher, respectively). There were no negative impacts of no-till compared to the tillage practice, for all tested variables. The biogas cropping system showed a better potential in terms of agri-environmental performance, although its greenhouse gas emissions were higher. Consequently, it would be appropriate to undertake a multicriteria assessment integrating agri-environmental, economic and social performances.
Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas
Michael Quanlu WANG, Hong HUO
《能源前沿(英文)》 2009年 第3卷 第2期 页码 212-225 doi: 10.1007/s11708-009-0016-y
关键词: transportation energy energy security greenhouse gases alternative fuels vehicle technologies
《能源前沿(英文)》 2022年 第16卷 第2期 页码 357-374 doi: 10.1007/s11708-021-0763-y
关键词: greenhouse gas (GHG) emission food consumption industry sectors mitigation measures urban governance
《农业科学与工程前沿(英文)》 2023年 第10卷 第2期 页码 234-247 doi: 10.15302/J-FASE-2022468
● The carbon footprint of the nitrogen fertilizer chain has decreased significantly over the last decade.
关键词: carbon accounting life cycle assessment policy product structure
Techno-economic assessment of providing control energy reserves with a biogas plant
Ervin Saracevic, David Woess, Franz Theuretzbacher, Anton Friedl, Angela Miltner
《化学科学与工程前沿(英文)》 2018年 第12卷 第4期 页码 763-771 doi: 10.1007/s11705-018-1776-x
Grid stability is being challenged by the increasing integration of power plants with volatile power generation into the energy system. Power supply fluctuations must be compensated by energy system flexibility. The storability of the energy carrier enables biogas plants to generate power flexibly. In this study, the technical and economic effects of providing positive secondary control energy reserves with an Austrian biogas plant were assessed. The plant’s main focus lies in biomethane production with the option of heat and power generation through combined heat and power (CHP) units. A detailed simulation model of the investigated biogas plant was developed, which is presented in this work. Ex-post simulations of one year of flexible plant operation were conducted with this model. The findings show that the installed biogas storage capacity is sufficient to provide control energy reserves while simultaneously producing biomethane. Profitability of providing control energy reserves largely depends on the prices at the control energy market and on CHP unit start-up costs. A cost efficiency analysis demonstrated that investing in a hot water tank with a volume of 5 m3 for short-term heat storage turned out to be economically viable.
关键词: biogas plant process simulation control energy reserves economic assessment gas storage
Sheng CHANG, Jianzheng LI, Feng LIU, Ze YU
《环境科学与工程前沿(英文)》 2012年 第6卷 第6期 页码 901-906 doi: 10.1007/s11783-012-0403-1
关键词: batch fermentation hydrogen production biogas releasing hydrogen pressure homoacetogenesis
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1713-1725 doi: 10.1007/s11705-022-2210-y
关键词: life cycle assessment economic performance HFC-134a natural gas oil coal
DESIGNING DIVERSIFIED CROPPING SYSTEMS IN CHINA: THEORY, APPROACHES AND IMPLEMENTATION
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 362-372 doi: 10.15302/J-FASE -2021392
Intensive agriculture in China over recent decades has successfully realized food security but at the expense of negative environmental impacts. Achieving green transformation of agriculture in China requires fundamental restructuring of cropping systems. This paper presents a theoretical framework of theory, approaches and implementation of crop diversification schemes in China. Initially, crop diversification schemes require identifying multiple objectives by simultaneously considering natural resources, limiting factors/constraints, and social and economic demands of different stakeholders. Then, it is necessary to optimize existing and/or design novel cropping systems based upon farming practices and ecological principles, and to strengthen targeted ecosystem services to achieve the identified objectives. Next, the resulting diversified cropping systems need to be evaluated and examined by employing experimental and modeling approaches. Finally, a strategic plan, as presented in this paper, is needed for implementing an optimized crop diversification in China based upon regional characteristics with the concurrent objectives of safe, nutritious food production and environmental protection. The North China Plain is used as an example to illustrate the strategic plan to optimize and design diversified cropping systems. The implementation of crop diversification in China will set an example for other countries undergoing agricultural transition, and contribute to global sustainable development.
Ge GAO, Mo CHEN, Jiayu WANG, Kexin YANG, Yujiao XIAN, Xunpeng SHI, Ke WANG
《工程管理前沿(英文)》 2019年 第6卷 第1期 页码 19-37 doi: 10.1007/s42524-019-0007-6
The recent Conference of the Parties of the United Nations Framework Convention on Climate Change has resulted in the submission of the Intended Nationally Determined Contributions (INDCs) of 190 countries. This study aims to provide an analysis of the ambitiousness and fairness of the mitigation components of the INDCs submitted by various parties. We use a unified framework to assess 23 INDCs that cover 50 countries, including European Union (EU)-28 countries as parties to the Convention, which represent 87.45% of the global greenhouse gas emissions in 2012. First, we transform initial INDC files into reported reduction targets. Second, we create four schemes and six scenarios to determine the required reduction effort, which considers each nation’s reduction responsibility, capacity, and potential, thereby reflecting their historical and current development status. Finally, we combine the reported reduction target and the required reduction effort to assess INDCs. Evaluation results of the 23 emitters indicate that 2 emitters (i.e., EU and Brazil) are rated as “sufficient,” 7 emitters (e.g., China, the United States, and Canada) are rated as “moderate,” and 14 emitters (e.g., India, Russia, and Japan) are rated as “insufficient.” Most pledges exhibit a considerable distance from representing a fair contribution.
关键词: Intended Nationally Determined Contributions mitigation responsibility capacity potential
Dehydration of natural gas and biogas streams using solid desiccants: a review
Soheil Bahraminia, Mansoor Anbia, Esmat Koohsaryan
《化学科学与工程前沿(英文)》 2021年 第15卷 第5期 页码 1050-1074 doi: 10.1007/s11705-020-2025-7
关键词: natural gas biogas dehydration adsorption solid desiccant
STRATEGIES FOR A LOW-CARBON FOOD SYSTEM IN CHINA
《农业科学与工程前沿(英文)》 2023年 第10卷 第2期 页码 167-182 doi: 10.15302/J-FASE-2023494
● A provincial stage-specific greenhouse gas (GHG) accounting model for the Chinese food system was developed.
关键词: greenhouse gas emissions food system life cycle assessment environmental input-output analysis mitigation strategies
《环境科学与工程前沿(英文)》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1562-3
● 548 representative nor genes were collected to create complete phylogenetic trees.
关键词: N2O Greenhouse gas NO reductase NO dismutase Primer Crystal structure
Anton ALVAREZ-MAJMUTOV,Jinwen CHEN
《化学科学与工程前沿(英文)》 2014年 第8卷 第2期 页码 212-218 doi: 10.1007/s11705-014-1424-z
关键词: Oil sands crude upgrading hydroconversion process modeling greenhouse gas emissions
GREENHOUSE GAS AND AMMONIA EMISSION MITIGATION PRIORITIES FOR UK POLICY TARGETS
《农业科学与工程前沿(英文)》 2023年 第10卷 第2期 页码 268-280 doi: 10.15302/J-FASE-2023495
● An expert survey highlighted the most effective strategies for GHG and ammonia mitigation.
DESIGNING DIVERSIFIED CROPPING SYSTEMS IN CHINA: THEORY, APPROACHES AND IMPLEMENTATION
Wen-Feng CONG, Chaochun ZHANG, Chunjie LI, Guangzhou WANG, Fusuo ZHANG
《农业科学与工程前沿(英文)》 页码 362-372 doi: 10.15302/J-FASE-2021392
关键词: Agriculture Green Development crop diversification cropping system modeling ecosystem services sustainable agriculture
标题 作者 时间 类型 操作
AGRI-ENVIRONMENTAL ASSESSMENT OF CONVENTIONAL AND ALTERNATIVE BIOENERGY CROPPING SYSTEMS PROMOTING BIOMASS
期刊论文
Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas
Michael Quanlu WANG, Hong HUO
期刊论文
Accounting greenhouse gas emissions of food consumption between urban and rural residents in China: awhole production perspective
期刊论文
PROPOSED INNOVATION REFORM MODEL FOR THE MINERAL NITROGEN FERTILIZER INDUSTRY IN CHINA TO REDUCE GREENHOUSEGAS EMISSIONS
期刊论文
Techno-economic assessment of providing control energy reserves with a biogas plant
Ervin Saracevic, David Woess, Franz Theuretzbacher, Anton Friedl, Angela Miltner
期刊论文
Effect of different gas releasing methods on anaerobic fermentative hydrogen production in batch cultures
Sheng CHANG, Jianzheng LI, Feng LIU, Ze YU
期刊论文
Life cycle assessment and economic analysis of HFC-134a production from natural gas compared with oil-basedand coal-based production
期刊论文
Sufficient or insufficient: Assessment of the intended nationally determined contributions (INDCs) ofthe world’s major greenhouse gas emitters
Ge GAO, Mo CHEN, Jiayu WANG, Kexin YANG, Yujiao XIAN, Xunpeng SHI, Ke WANG
期刊论文
Dehydration of natural gas and biogas streams using solid desiccants: a review
Soheil Bahraminia, Mansoor Anbia, Esmat Koohsaryan
期刊论文
Phylogenetic diversity of NO reductases, new tools for monitoring, and insights into NO production in
期刊论文
Analyzing the energy intensity and greenhouse gas emission of Canadian oil sands crude upgrading through
Anton ALVAREZ-MAJMUTOV,Jinwen CHEN
期刊论文