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《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 541-552 doi: 10.15302/J-FASE-2023518
Agricultural non-point source pollution is increasingly an important issue affecting surface water quality. Currently, the majority of the studies on nitrogen loss have focused on the agricultural field scale, however, the response of surface water quality at the watershed scale into the nitrogen loss at the field scale is poorly understood. The present study systematically reviewed the critical processes and major factors that nitrogen transport from farm fields to surface water bodies. The critical processes of farmland nitrogen entering surface water bodies involve the processes of nitrogen transport from farmland to ditches and the transformation processes of nitrogen during migration in ditches/rivers. Nitrogen transport from farmland to ditches is one of the prerequisites and critical processes for farmland nitrogen transport to surface water bodies. The transformation of nitrogen forms in ditches/rivers is an intermediate process in the migration of nitrogen from farmland to surface water bodies. Nitrogen loss from farmland is related to soil storage and exogenous inputs. Therefore, nitrogen input management should not only consider the current input, but also the contribution of soil storage due to the historical surpluses. Ditches/rivers have a strong retention capacity for nitrogen, which will significantly affect the process of farmland nitrogen entering surface water bodies. The factors affecting nitrogen transformation in river/ditches can be placed in four categories: (1) factors affecting hydraulic retention time, (2) factors affecting contact area, (3) factors affecting biological activity, and (4) forms and amount of nitrogen loading to river/ditches. Ditch systems are more biologically (including plants and microbes) active than rivers with biological factors having a greater influence on nitrogen transformation. When developing pollution prevention and control strategies, ecological ditches can be constructed to increase biological activity and reduce the amount of surplus nitrogen entering the water body. The present research should be valuable for the evaluation of environment impacts of nitrogen loss and the non-point source pollution control.
关键词: nitrogen loss from soil transformation farm field scale watershed scale
Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China
Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI
《环境科学与工程前沿(英文)》 2010年 第4卷 第4期 页码 395-404 doi: 10.1007/s11783-010-0271-5
关键词: stabilization contaminated soil field-scale demonstration technical obstacles
《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
NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS
《农业科学与工程前沿(英文)》 2021年 第8卷 第1期
• NZ dairy farming systems are based on year-round grazing of perennial pasture (ryegrass/white clover).
• Milk production per hectare has increased by about 29% with increased use of externally-sourced feeds over the last two decades.
• Externally-sourced feeds with a low protein concentration can potentially reduce N2O emissions and N leaching per unit of production.
• Systems analysis is important for evaluating mitigations to minimize trade-offs between environmental impacts.
This paper provides an overview of the range of dairy pasture grazing systems used in New Zealand (NZ), the changes with increased inputs over time and associated key environmental effects including nitrogen (N) leaching and greenhouse gas (GHG) emissions. NZ dairy farming systems are based on year-round grazing and seasonal milk production on perennial ryegrass/clover pasture where cows are rotationally grazed in paddocks. There was an increase in stocking rate on NZ dairy farms from 2.62 cows ha−1 in 2000/2001 to 2.84 cows ha−1 in 2015/2016. During the same period annual milk solids production increased from 315 to 378 kg·yr−1 per cow. This performance has coincided with an increase in N fertilizer use (by ~ 30%) and a twofold increase in externally-sourced feeds. Externally-sourced feeds with a low protein concentration (e.g., maize silage) can increase the efficiency of N utilization and potentially reduce N losses per unit of production. Off-paddock facilities (such as standoff or feed pads) are often used to restrict grazing during very wet winter conditions. A systems analysis of contrasting dairy farms in Waikato (largest NZ dairying region) indicates that the increased input would result in an increase in per-cow milk production but little change in efficiency of milk production from a total land use perspective. This analysis also shows that the increased inputs caused an 11% decrease in N footprint (i.e., N emissions per unit of milk production) and a 2% increase in C footprint (i.e., greenhouse gas (GHG) emissions per unit of milk production).jiafa.luo@agresearch.co.nz
NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS
Jiafa LUO, Stewart LEDGARD
《农业科学与工程前沿(英文)》 2021年 第8卷 第1期 页码 148-158 doi: 10.15302/J-FASE-2020372
关键词: dairy farms environmental impacts grazing systems intensification mitigation
Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett
《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0988-5
关键词: Rain gardens Bioretention Combined sewer Stormwater quality and quantity
《结构与土木工程前沿(英文)》 页码 1047-1059 doi: 10.1007/s11709-023-0034-6
关键词: warm permafrost expressway ventilation embankments temperature field
Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns
Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES
《农业科学与工程前沿(英文)》 2017年 第4卷 第2期 页码 135-145 doi: 10.15302/J-FASE-2017143
关键词: soil electrical conductivity soil texture mapping temporal stability analysis
Nengsheng BAO, Weidou NI,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 205-210 doi: 10.1007/s11708-009-0073-2
关键词: framework design hybrid energy system wind farm gas turbine power plants
Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review
Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD
《能源前沿(英文)》 2020年 第14卷 第2期 页码 359-382 doi: 10.1007/s11708-018-0546-2
关键词: solid oxide fuel cells (SOFCs) clean energy design micro-scale nano-scale performance
贾伟,臧建军,张强,李德发
《中国工程科学》 2017年 第19卷 第4期 页码 130-137 doi: 10.15302/J-SSCAE-2017.04.021
本文介绍我国畜禽养殖废弃物还田利用模式发展概况,分析养殖废弃物循环利用产业发展的问题,探讨下一步的发展战略。总结发现,多年来国内外在探索畜禽养殖废弃物还田利用模式、农田适宜载畜量参数等方面取得了重要的进展,但仍然存在种养结合养分不平衡、各种处理过程养分损失大、农田合理施用粪肥原则缺失等问题。下一步的研究应该以“还田利用,环境友好”为目标,引入种养结合粪便养分管理理念,开展畜禽养殖废弃物的收集—贮存—处理—还田;开展包括优化还田安全利用技术、种养循环过程温室气体减排、农田对养殖废弃物合理消纳量定量、减少氮磷养分损失避免面源污染等方面的研究,同时在政策上引导畜禽养殖废弃物的高效资源化利用。
Network-based optimization techniques for wind farm location decisions
Jorge Ignacio CISNEROS-SALDANA, Seyedmohammadhossein HOSSEINIAN, Sergiy BUTENKO
《工程管理前沿(英文)》 2018年 第5卷 第4期 页码 533-540 doi: 10.15302/J-FEM-2018025
This study aims to find appropriate locations for wind farms that can maximize the overall energy output while controlling the effects of wind speed variability. High wind speeds are required to obtain the maximum possible power output of a wind farm. However, balancing the wind energy supplies over time by selecting diverse locations is necessary. These issues are addressed using network-based models. Hence, actual wind speed data are utilized to demonstrate the advantages of the proposed approach.
关键词: wind energy wind farm location network analysis optimization clique s-plex
Full scale amendment of a contaminated wood impregnation site with iron water treatment residues
Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN
《环境科学与工程前沿(英文)》 2016年 第10卷 第4期 doi: 10.1007/s11783-016-0842-1
关键词: Field experiment Iron oxide Arsenic Stabilization Wood preservation sites
Field scale measurement of greenhouse gas emissions from land applied swine manure
Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning
《环境科学与工程前沿(英文)》 2017年 第11卷 第3期 doi: 10.1007/s11783-017-0915-9
关键词: Climate change Emissions Greenhouse gases Land application Swine manure
标题 作者 时间 类型 操作
CRITICAL PROCESSES AND MAJOR FACTORS THAT DRIVE NITROGEN TRANSPORT FROM FARMLAND TO SURFACE WATER BODIES
期刊论文
Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China
Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI
期刊论文
LARGE-SCALE FARMING BENEFITS SOIL ACIDIFICATION ALLEVIATION THROUGH IMPROVED FIELD MANAGEMENT IN BANANA
期刊论文
Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale
Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett
期刊论文
Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the
期刊论文
Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns
Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES
期刊论文
Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants
Nengsheng BAO, Weidou NI,
期刊论文
Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review
Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD
期刊论文
Network-based optimization techniques for wind farm location decisions
Jorge Ignacio CISNEROS-SALDANA, Seyedmohammadhossein HOSSEINIAN, Sergiy BUTENKO
期刊论文
Full scale amendment of a contaminated wood impregnation site with iron water treatment residues
Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN
期刊论文