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CRITICAL PROCESSES AND MAJOR FACTORS THAT DRIVE NITROGEN TRANSPORT FROM FARMLAND TO SURFACE WATER BODIES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 541-552 doi: 10.15302/J-FASE-2023518

Abstract: 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 thefield scale is poorly understood.study systematically reviewed the critical processes and major factors that nitrogen transport from farm

Keywords： nitrogen     loss from soil     transformation     farm field scale     watershed scale    

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Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China

Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 395-404 doi: 10.1007/s11783-010-0271-5

Abstract: been used worldwide but is rarely used for treatment of contaminated sites in China despite many bench-scaleHere, a field-scale application of stabilization treatment in Shanghai, China was summarized to demonstratephase II ESA, quantitative human health risk assessment, remediation alternatives evaluation, bench-scale

Keywords： stabilization     contaminated soil     field-scale demonstration     technical obstacles    

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LARGE-SCALE FARMING BENEFITS SOIL ACIDIFICATION ALLEVIATION THROUGH IMPROVED FIELD MANAGEMENT IN BANANA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 48-60 doi: 10.15302/J-FASE-2022475

Abstract:

● Large farms had the highest average yield and the least yield variation.

Keywords： plantations     land transfer     large-scale farming     nutrient management     soil acidification    

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NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,

Abstract:

• 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

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NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Jiafa LUO, Stewart LEDGARD

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,   Pages 148-158 doi: 10.15302/J-FASE-2020372

Abstract: 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 in 2000/2001 to 2.85 cows ha in 2015/2016. During the same period annual milk solids production increased from 315 to 378 kg·yr 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).

Keywords： dairy farms     environmental impacts     grazing systems     intensification     mitigation    

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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

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0988-5

Abstract: Green infrastructures such as rain gardens can benefit onsite reduction of stormwater runoff, leading to reduced combined sewer overflows. A pilot project was conducted to evaluate the impact of rain gardens on the water quality and volume reduction of storm runoff from urban streets in a combined sewer area. The study took place in a six-block area on South Grand Boulevard in St. Louis, Missouri. The impact was assessed through a comparison between the pre-construction (2011/2012) and the post-construction (2014) phases. Shortly after the rain gardens were installed, the levels of total suspended solids, chloride, total nitrogen, total phosphorous, zinc, and copper increased. The level of mercury was lower than the detection level in both phases. was the only parameter that showed statistically significant decrease following the installation of rain gardens. The likely reason for initial increase in monitored water quality parameters is that the post-construction sampling began after the rain gardens were constructed but before planting, resulted from soil erosion and wash-out from the mulch. However, the levels of most of water quality parameters decreased in the following time period during the post-construction phase. The study found 76% volume reduction of stormwater runoff following the installation of rain gardens at one of studied sites. Statistical analysis is essential on collected data because of the encountered high variability of measured flows resulted from low flow conditions in studied sewers.

Keywords： Rain gardens     Bioretention     Combined sewer     Stormwater quality and quantity    

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Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Frontiers of Structural and Civil Engineering   Pages 1047-1059 doi: 10.1007/s11709-023-0034-6

Abstract: It was found that: 1) under the strong scale effect of a wide embankment, the crushed-rock embankment

Keywords： warm permafrost     expressway     ventilation embankments     temperature field    

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Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 135-145 doi: 10.15302/J-FASE-2017143

Abstract: Capturing field heterogeneity without exhaustive sampling and costly sample analysis is difficult.The 50 m × 50 m field included a subsurface gravelly patch in an otherwise homogeneous silt-loam alluvialTemporal stability analysis was used to divide the field into three distinct EC regions.

Keywords： soil electrical conductivity     soil texture mapping     temporal stability analysis    

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Small-scale area survey and analyses of Xinjiang’s coal field fire in China

Zhong Maohua,Fu Tairan,Hu Zhongbin

Strategic Study of CAE 2010, Volume 12, Issue 1,   Pages 12-17

Abstract:

In this paper, Xinjiang's coal field is selected as the investigationThrough a series of field surveys in Xinjiang, we made the small-scale area analysis of coal field fireThe results show that the method of small-scale area analysis is available for examining the extinguishedTherefore, for the selected fire-extinguished coal field in Xinjiang, the fire extinguishing effect wasFor the coal field where the fire has not been extinguished, the utilization of this means approximately

Keywords： coal field fire     thermal anomaly     temperature     small-scale     remote sensing    

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Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants

Nengsheng BAO, Weidou NI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 205-210 doi: 10.1007/s11708-009-0073-2

Abstract: Owing to the stochastic characteristic of natural wind speed, the output fluctuation of wind farm hasa negative impact on power grid when a large-scale wind farm is connected to a power grid.It is very difficult to overcome this impact only by wind farm itself.output from the small gas turbine power plants to compensate for the output fluctuation from the wind farmThe capacity of the wind farm is chosen according to the capacity and units of small gas turbine power

Keywords： framework design     hybrid energy system     wind farm     gas turbine power plants    

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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

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 359-382 doi: 10.1007/s11708-018-0546-2

Abstract: The main concerns in the world today, especially in the energy field, are subjected to clean, efficient

Keywords： solid oxide fuel cells (SOFCs)     clean energy     design     micro-scale     nano-scale     performance    

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Development Strategies for Utilization Models for Returning Livestock and Poultry Manure to the Land

Jia Wei,Zang Jianjun,Zhang Qiang and Li Defa

Strategic Study of CAE 2017, Volume 19, Issue 4,   Pages 130-137 doi: 10.15302/J-SSCAE-2017.04.021

Abstract:

This paper summarizes the development of utilization models for the return of livestock and poultry manure to farmland in China. It analyzes the problems affecting the industrial development of the utilization of livestock and poultry manure recycling, and discusses development strategies for the next step in this process. In past years, important progress has been achieved in exploring utilization models for returning livestock and poultry manure to farmland, and in identifying suitable parameters for the farmland carrying capacity of livestock, both at home and abroad. However, problems remain such as unbalanced nutrients after combining planting and livestock systems, large nutrient losses, and a lack of reasonable principles for manure application on farmland. In the next step, studies should be based on the concept of the environmentally friendly return of manure to farmland and should introduce the concept of nutrient management after combining planting and livestock systems. Techniques should be carried out for the collection, storage, and processing of manure; for its return to farmland; for reasonable manure applications; for balancing nitrogen and phosphorus nutrients in order to reduce non-point source pollution; and for other aspects. In addition, policies about the efficient recycling of livestock and poultry manure should be promoted.

Keywords： large-scale     livestock farm     manure     wastewater     combining planting and livestock systems     nutrients    

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Network-based optimization techniques for wind farm location decisions

Jorge Ignacio CISNEROS-SALDANA, Seyedmohammadhossein HOSSEINIAN, Sergiy BUTENKO

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 533-540 doi: 10.15302/J-FEM-2018025

Abstract: High wind speeds are required to obtain the maximum possible power output of a wind farm.

Keywords： wind energy     wind farm location     network analysis     optimization     clique     s-plex    

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Full scale amendment of a contaminated wood impregnation site with iron water treatment residues

Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0842-1

Abstract: contaminant leaching, and discussing the design of delivery and mixing strategy for soil stabilization at fieldscale and present a cost-effective method of soil mixing by common contractor machinery.To evaluate the full scale amendment a 100 m test site and a control site (without amendment) were monitoredDosage and mixing of Fe-WTR in the soil proved to be difficult in the deeper part of the field, and poreOur field scale amendment of contaminated soil was overall successful in decreasing leaching of As, Cr

Keywords： Field experiment     Iron oxide     Arsenic     Stabilization     Wood preservation sites    

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Field scale measurement of greenhouse gas emissions from land applied swine manure

Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0915-9

Abstract: observational study was to measure GHG fluxes from land application of swine manure on a typical corn fieldland-applied swine manure, fall and reapplication in the spring, on a typical US Midwestern corn-on-corn farm

Keywords： Climate change     Emissions     Greenhouse gases     Land application     Swine manure    

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Title Author Date Type Operation

CRITICAL PROCESSES AND MAJOR FACTORS THAT DRIVE NITROGEN TRANSPORT FROM FARMLAND TO SURFACE WATER BODIES

Journal Article

Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China

Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI

Journal Article

LARGE-SCALE FARMING BENEFITS SOIL ACIDIFICATION ALLEVIATION THROUGH IMPROVED FIELD MANAGEMENT IN BANANA

Journal Article

NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Journal Article

NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Jiafa LUO, Stewart LEDGARD

Journal Article

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

Journal Article

Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Journal Article

Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Journal Article

Small-scale area survey and analyses of Xinjiang’s coal field fire in China

Zhong Maohua,Fu Tairan,Hu Zhongbin

Journal Article

Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants

Nengsheng BAO, Weidou NI,

Journal Article

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

Journal Article

Development Strategies for Utilization Models for Returning Livestock and Poultry Manure to the Land

Jia Wei,Zang Jianjun,Zhang Qiang and Li Defa

Journal Article

Network-based optimization techniques for wind farm location decisions

Jorge Ignacio CISNEROS-SALDANA, Seyedmohammadhossein HOSSEINIAN, Sergiy BUTENKO

Journal Article

Full scale amendment of a contaminated wood impregnation site with iron water treatment residues

Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN

Journal Article

Field scale measurement of greenhouse gas emissions from land applied swine manure

Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning

Journal Article