检索范围:
排序: 展示方式:
Fusuo ZHANG, Zhenling CUI, Weifeng ZHANG
《农业科学与工程前沿(英文)》 2014年 第1卷 第1期 页码 53-61 doi: 10.15302/J-FASE-2014006
关键词: integrated nutrient management integrated soil-crop system management environmental protection food security resource use efficiency
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 579-592 doi: 10.15302/J-FASE-2023526
Nutrient pollution of air and water is a persistent problem in Europe. However, the pollution sources are often analyzed separately, preventing the formulation of integrative solutions. This study aimed to quantify the contribution of agriculture to air, river and coastal water pollution by nutrients. A new MARINA-Nutrients model was developed for Europe to calculate inputs of nitrogen (N) and phosphorus (P) to land and rivers, N emissions to air, and nutrient export to seas by river basins. Under current practice, inputs of N and P to land were 34.4 and 1.8 Tg·yr–1, respectively. However, only 12% of N and 3% of P reached the rivers. Agriculture was responsible for 55% of N and sewage for 67% of P in rivers. Reactive N emissions to air from agriculture were calculated at 4.0 Tg·yr–1. Almost two-fifths of N emissions to air were from animal housing and storage. Nearly a third of the basin area was considered as pollution hotspots and generated over half of N emissions to air and nutrient pollution in rivers. Over 25% of river export of N ended up in the Atlantic Ocean and of P in the Mediterranean Sea. These results could support environmental policies to reduce both air and water pollution simultaneously, and avoid pollution swapping.
关键词: agriculture air-water modeling European rivers nutrient pollution sewage systems source attribution
《环境科学与工程前沿(英文)》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1584-x
关键词: Nutrient stoichiometry Wastewater treatment Ecosystem functioning Water quality management
Strategies to reduce nutrient pollution from manure management in China
David R. CHADWICK, John R. WILLIAMS, Yuelai LU, Lin MA, Zhaohai BAI, Yong HOU, Xinping CHEN, Thomas H. MISSELBROOK
《农业科学与工程前沿(英文)》 2020年 第7卷 第1期 页码 45-55 doi: 10.15302/J-FASE-2019293
As the demand for livestock products continues to increase in China, so too does the challenge of managing increasing quantities of manure. Urgent action is needed to control point source (housing, storage and processing) and diffuse (field application) pollution and improve the utilization of manure nutrients and organic matter. Here, we review strategies to improve management at each stage of the manure management chain and at different scales. Many strategies require infrastructure investment, e.g., for containment of all manure fractions. Engineering solutions are needed to develop advanced composting systems with lower environmental footprints and design more efficient nutrient stripping technologies. At the field-scale, there is an urgent need to develop a manure nutrient recommendation system that accounts for the range of manure types, cropping systems, soils and climates throughout China. At the regional scale, coordinated planning is necessary to promote recoupling of livestock and cropping systems, and reduce nutrient accumulation in regions with little available landbank, while minimizing the risk of pollution swapping from one region to another. A range of stakeholders are needed to support the step change and innovation required to improve manure management, reduce reliance on inorganic fertilizers, and generate new business opportunities.
关键词: cropping farms livestock production manure management chain recoupling nutrient loss
Toward to agricultural green development by multi-objective zoning and nitrogen nutrient management: RESEARCH ARTICLE
《农业科学与工程前沿(英文)》 2024年 第11卷 第1期 页码 140-154 doi: 10.15302/J-FASE-2023533
Although China has achieved great advancements toward national food security, the country is still confronted with a range of challenges, including natural resource stress, imbalanced diets and environmental pollution. Optimized management of crop–livestock systems is the key measure to realize agricultural green transformation. However, optimized management of crop–livestock systems that use multi-objective zoning is lacking. This study employed a multi-objective zoning management approach to comprehensively analyze four indicators: ammonia volatilization, nitrogen surplus, soil carrying capacity and ecological red line area. With its significant ecological integrity and a strong emphasis on sustainability, the Baiyangdian Basin serves as a unique and suitable test case for conducting analyses on multi-objective nutrient optimization management, with the aim to facilitate the agricultural green transformation. This study finds that less than 8% of the area in the Baiyangdian Basin meet the acceptable environmental indicator standard, whereas around 50% of the area that had both nitrogen surplus and ammonia volatilization exceeded the threshold. Implementation of unified management, that is, the same management technique across the study areas, could result in an increase of areas meeting environmental indicator thresholds to 21.1%. This project developed a novel multi-indicator partition optimization method, in which distinct measures are tailored for different areas to satisfy multiple environmental indicators. Implementation of this method, could potentially bring more than 50% area below the threshold, and areas with ammonia emissions and nitrogen surplus could be reduced to 15.8%. The multi-indicators partition optimization method represents a more advanced and efficiency-oriented management approach when compared to unified management. This approach could be regarded as the best available option to help China achieve agricultural transformation to improve efficient production and reduce environmental pollution. It is recommended that current policies aimed at nutrient management toward sustainable agricultural development should shift toward the application of multi-indicators partition optimization.
关键词: Agricultural green development Baiyangdian Basin environmental emission threshold partition management
Applying an Integrated Systems Perspective to the Management of Engineering Projects
Simon P. Philbin
《工程管理前沿(英文)》 2015年 第2卷 第1期 页码 19-30 doi: 10.15302/J-FEM-2015004
关键词: integrated systems perspective engineering projects management
Mitigation strategies for soil acidification based on optimal nitrogen management REVIEW
《农业科学与工程前沿(英文)》 2024年 第11卷 第2期 页码 229-242 doi: 10.15302/J-FASE-2024562
Soil acidification is a serious constraint to food production worldwide. This review explores its primary causes, with a focus on the role of nitrogen fertilizer, and suggests mitigation strategies based on optimal N management. Natural acidification is determined by the leaching of weak acid mainly caused by climate and soil conditions, whereas the use of ammonium-based fertilizers, nitrate leaching and removal of base cations (BCs) by crop harvesting mostly accounts for anthropogenic acidification. In addition, low soil acid buffering capacity, mainly determined by soil parent materials and soil organic matter content, also accelerates acidification. This study proposes targeted mitigation strategies for different stages of soil acidification, which include monitoring soil carbonate content and pH of soils with pH > 6.5 (e.g., calcareous soil), use of alkaline amendments for strongly acidic soils (pH < 5.5) with aluminum toxicity risk to pH between 5.5 and 6.5, and decreasing acidification rates and supplementing BCs to maintain this optimal pH range, especially for soils with low acid buffering capacity. Effective mitigation involves optimizing the rate and form of N fertilizers used, regulating N transformation processes, and establishing an integrated soil–crop management system that balances acid production and soil buffering capacity.
关键词: Soil acidification nutrient management nitrogen soil buffering capacity
Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG
《环境科学与工程前沿(英文)》 2015年 第9卷 第2期 页码 279-287 doi: 10.1007/s11783-014-0667-8
关键词: riparian vegetation patterns soil nutrient distribution nutrient loss management
Wen Ling
《工程管理前沿(英文)》 2015年 第2卷 第2期 页码 173-177 doi: 10.15302/J-FEM-2015029
关键词: coal-based integrated energy systems engineering exploration practice
Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China
Lei LIU, Xiaoming MA
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 243-254 doi: 10.1007/s11783-010-0276-0
关键词: integrated river basin management (IRBM) model Longgang River basin Shenzhen decentralization stakeholder participation
《环境科学与工程前沿(英文)》 2024年 第18卷 第2期 doi: 10.1007/s11783-024-1784-7
● Maldives’ unique natural and socioeconomic status cause waste management challenges.
关键词: Anaerobic digestion Waste incineration Waste management Maldives Small Island Developing States Waste-to-energy
An integrated approach to site-specific management zone delineation
Yuxin MIAO, David J. MULLA, Pierre C. ROBERT
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 432-441 doi: 10.15302/J-FASE-2018230
Dividing fields into a few relatively homogeneous management zones (MZ) is a practical and cost-effective approach to precision agriculture. There are three basic approaches to MZ delineation using soil and/or landscape properties, yield information, and both sources of information. The objective of this study is to propose an integrated approach to delineating site-specific MZ using relative elevation, organic matter, slope, electrical conductivity, yield spatial trend map, and yield temporal stability map (ROSE-YSTTS) and evaluate it against two other approaches using only soil and landscape information (ROSE) or clustering multiple year yield maps (CMYYM). The study was carried out on two no-till corn-soybean rotation fields in eastern Illinois, USA. Two years of nitrogen (N) rate experiments were conducted in Field B to evaluate the delineated MZs for site-specific N management. It was found that in general the ROSE approach was least effective in accounting for crop yield variability (8.0%–9.8%), while the CMYYM approach was least effective in accounting for soil and landscape (8.9%–38.1%), and soil nutrient and pH variability (9.4%–14.5%). The integrated ROSE-YSTTS approach was reasonably effective in accounting for the three sources of variability (38.6%–48.9%, 16.1%–17.3% and 13.2%–18.7% for soil and landscape, nutrient and pH, and yield variability, respectively), being either the best or second best approach. It was also found that the ROSE-YSTTS approach was effective in defining zones with high, medium and low economically optimum N rates. It is concluded that the integrated ROSE-YSTTS approach combining soil, landscape and yield spatial-temporal variability information can overcome the weaknesses of approaches using only soil, landscape or yield information, and is more robust for MZ delineation. It also has the potential for site-specific N management for improved economic returns. More studies are needed to further evaluate their appropriateness for precision N and crop management.
关键词: economically optimum nitrogen rate fuzzy cluster analysis precision nitrogen management site-specific management soil landscape property yield map
朱石坚
《中国工程科学》 2015年 第17卷 第1期 页码 96-102
舰船是结构复杂、体系庞大、技术密集的武器装备,其战备完好性和战斗力水平高度依赖于综合保障工程管理。本文对舰船装备综合保障工程管理的内涵与特点做了全面分析,研究了舰船装备综合保障工程管理的主要内容,总结了舰船装备综合保障工程管理方法,对做好舰艇装备综合保障工作具有重要的指导意义。
关键词: 舰船装备;工程管理;综合保障;理论体系
《农业科学与工程前沿(英文)》 2023年 第10卷 第1期 页码 48-60 doi: 10.15302/J-FASE-2022475
● Large farms had the highest average yield and the least yield variation.
关键词: plantations land transfer large-scale farming nutrient management soil acidification
Yifei MA, Ling ZHANG, Zhaohai BAI, Rongfeng JIANG, Yong HOU, Lin MA
《农业科学与工程前沿(英文)》 2021年 第8卷 第1期 页码 58-71 doi: 10.15302/J-FASE-2020371
关键词: industrial farms mixed smallholdings pig dairy nutrient management
标题 作者 时间 类型 操作
Managing nutrient for both food security and environmental sustainability in China: an experiment for
Fusuo ZHANG, Zhenling CUI, Weifeng ZHANG
期刊论文
HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER: AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS
期刊论文
Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological
期刊论文
Strategies to reduce nutrient pollution from manure management in China
David R. CHADWICK, John R. WILLIAMS, Yuelai LU, Lin MA, Zhaohai BAI, Yong HOU, Xinping CHEN, Thomas H. MISSELBROOK
期刊论文
Toward to agricultural green development by multi-objective zoning and nitrogen nutrient management:
期刊论文
Applying an Integrated Systems Perspective to the Management of Engineering Projects
Simon P. Philbin
期刊论文
Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case study of the Wenyu River in Beijing
Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG
期刊论文
Exploration and Practice in Systems Engineering Management of Large Coal-based Integrated Energy Projects
Wen Ling
期刊论文
Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China
Lei LIU, Xiaoming MA
期刊论文
Toward sustainable waste management in small islands developing states: integrated waste-to-energy solutions
期刊论文
An integrated approach to site-specific management zone delineation
Yuxin MIAO, David J. MULLA, Pierre C. ROBERT
期刊论文
LARGE-SCALE FARMING BENEFITS SOIL ACIDIFICATION ALLEVIATION THROUGH IMPROVED FIELD MANAGEMENT IN BANANA
期刊论文