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Mengshi LIN,
《化学科学与工程前沿(英文)》 2009年 第3卷 第4期 页码 427-435 doi: 10.1007/s11705-009-0244-z
关键词: milk-derived Melamine labor-intensive cyanurate time-consuming
Characterising populations living close to intensive farming and composting facilities in England
《环境科学与工程前沿(英文)》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1332-z
• Bioaerosol emitted from farming and composting facilities may pose health risks.
关键词: Composting Intensive farming Bioaerosol Population characteristics Public health
Ji-liang Zheng,Chen Zheng,Pan Chen,Ching Yuan Luk
《工程管理前沿(英文)》 2014年 第1卷 第4期 页码 364-371 doi: 10.15302/J-FEM-2014053
关键词: order parameter coordinated degree evaluation energy-intensive industry circular economy
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 530-540 doi: 10.15302/J-FASE-2023515
Soil nitrogen mineralization (Nmin) is a key process that converts organic N into mineral N that controls soil N availability to plants. However, regional assessments of soil Nmin in cropland and its affecting factors are lacking, especially in relation to variation in elevation. In this study, a 4-week incubation experiment was implemented to measure net soil Nmin rate, gross nitrification (Nit) rate and corresponding soil abiotic properties in five field soils (A–C, maize; D, flue-cured tobacco; and E, vegetables; with elevation decreasing from A to E) from different altitudes in a typical intensive agricultural area in Dali City, Yunnan Province, China. The results showed that soil Nmin rate ranged from 0.10 to 0.17 mg·kg−1·d−1 N, with the highest value observed in field E, followed by fields D, C, B, and A, which indicated that soil Nmin and Nit rates varied between fields, decreasing with elevation. The soil Nit rate ranged from 434.2 to 827.1 µg·kg−1·h−1 N, with the highest value determined in field D, followed by those in fields E, C, B, and A. The rates of soil Nmin and Nit were positively correlated with several key soil parameters, including total soil N, dissolved organic carbon and dissolved inorganic N across all fields, which indicated that soil variables regulated soil Nmin and Nit in cropland fields. In addition, a strong positive relationship was observed between soil Nmin and Nit. These findings provide a greater understanding of the response of soil Nmin among cropland fields related to spatial variation. It is suggested that the soil Nmin from cropland should be considered in the evaluation of the N transformations at the regional scale.
关键词: cropland gross nitrification rate regulatory factors soil nitrogen mineralization spatial variation
《农业科学与工程前沿(英文)》 2022年 第9卷 第3期 页码 457-464 doi: 10.15302/J-FASE-2022452
● A simple model was used to evaluate how increasing temporal variability in precipitation influences crop yields and nitrogen losses.
关键词: crop yield fertilizer timing nitrogen loss precipitation variability toy model
史健鹏,金苗,任泽,黄贤忠,李旭祥
《中国工程科学》 2010年 第12卷 第6期 页码 104-107
就解决太湖水体富营养化最主要的污染源——农业面污染源,根据微观经济学原理建立了农业集约化管理模型。以GIS为平台估算其耕地面积和化肥的科学施用量,用SPSS相关性分析当地居民的问卷调查,对集约化管理产生的经济效益和环境效益进行详细分析,得出农业面源污染物总氮、总磷排放比2005年各下降21 %和16 %。结论显示在太湖流域套用集约化管理能够很好地控制农业面污染源,将农业面污染源的问题与实际社会成本、农业体制改革结合,从根本上解决农业面污染源。
Greenhouse gas emissions mitigation and economic viability of sugar crops in China
《农业科学与工程前沿(英文)》 doi: 10.15302/J-FASE-2023529
● Sugarcane and sugar beet yield and carbon footprint rose with time but profit declined
关键词: Economic profits GHG emissions labor input nitrogen input sugar
High risk factors for pulmonary fungous infection in intensive care units of neurosurgery
ZHU Wenyu, TAN Liping, CHEN Xiangfeng, HUANG Qiang, LAN Qing
《医学前沿(英文)》 2007年 第1卷 第3期 页码 299-303 doi: 10.1007/s11684-007-0057-8
关键词: seventeen incidence glucocorticoid broad-spectrum antibiotic Candidiasis
《化学科学与工程前沿(英文)》 2022年 第16卷 第9期 页码 1291-1317 doi: 10.1007/s11705-022-2151-5
关键词: industrial CO2 emissions CCS deployment carbonate looping net-zero industry carbon capture benchmarks
Soil-water interaction in unsaturated expansive soil slopes
ZHAN Liangtong
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 198-204 doi: 10.1007/s11709-007-0023-1
关键词: strength intensive soil-water comprehensive Infiltration wetting-induced softening
Electricity demand, GDP and employment: evidence from Italy
Cosimo MAGAZZINO
《能源前沿(英文)》 2014年 第8卷 第1期 页码 31-40 doi: 10.1007/s11708-014-0296-8
关键词: energy policies electricity demand GDP labor force stationarity structural breaks cointegration causality Italy
李毓堂
《中国工程科学》 2002年 第4卷 第1期 页码 15-22
文章论述了钱学森提出创建知识密集型草产业的历史背景、科学内涵、理论意义、应用成果和在21世纪中国可持续发展战略中的重要作用,并根据钱老的主张,提出当前启动全国大规模草产业工程必须创新管理机制。
Muhammad WASEEM, Frauke KACHHOLZ, Jens TRÄNCKNER
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 420-431 doi: 10.15302/J-FASE-2018243
Various process-based models are extensively being used to analyze and forecast catchment hydrology and water quality. However, it is always important to select the appropriate hydrological and water quality modeling tools to predict and analyze the watershed and also consider their strengths and weaknesses. Different factors such as data availability, hydrological, hydraulic, and water quality processes and their desired level of complexity are crucial for selecting a plausible modeling tool. This review is focused on suitable model selection with a focus on desired hydrological, hydraulic and water quality processes (nitrogen fate and transport in surface, subsurface and groundwater bodies) by keeping in view the typical lowland catchments with intensive agricultural land use, higher groundwater tables, and decreased retention times due to the provision of artificial drainage. In this study, four different physically based, partially and fully distributed integrated water modeling tools, SWAT (soil and water assessment tool), SWIM (soil and water integrated model), HSPF (hydrological simulation program– FORTRAN) and a combination of tools from DHI (MIKE SHE coupled with MIKE 11 and ECO Lab), have been reviewed particularly for the Tollense River catchment located in North-eastern Germany. DHI combined tools and SWAT were more suitable for simulating the desired hydrological processes, but in the case of river hydraulics and water quality, the DHI family of tools has an edge due to their integrated coupling between MIKE SHE, MIKE 11 and ECO Lab. In case of SWAT, it needs to be coupled with another tool to model the hydraulics in the Tollense River as SWAT does not include backwater effects and provision of control structures. However, both SWAT and DHI tools are more data demanding in comparison to SWIM and HSPF. For studying nitrogen fate and transport in unsaturated, saturated, and river zone, HSPF was a better model to simulate the desired nitrogen transformation and transport processes. However, for nitrogen dynamics and transformations in shallow streams, ECO Lab had an edge due its flexibility for inclusion of user-desired water quality parameters and processes. In the case of SWIM, most of the input data and governing equations are similar to SWAT but it does not include water bodies (ponds and lakes), wetlands and drainage systems. In this review, only the processes that were needed to simulate the Tollense River catchment were considered, however the resulted model selection criteria can be generalized to other lowland catchments in Australia, North-western Europe and North America with similar complexity.
关键词: diffuse pollution ECO Lab HSPF lowland catchment MIKE 11 MIKE SHE modeling tools SWAT SWIM Tollense River water quality
重大耗能设备低碳运行智能控制方法 Article
柴天佑, 李明宇, 周正, 程思宇, 贾瑶, 吴志伟
《工程(英文)》 2023年 第27卷 第8期 页码 84-95 doi: 10.1016/j.eng.2023.05.018
本文在分析重大耗能设备运行专家的运行控制行为的基础上,将机理分析与深度学习,控制与优化和预测相结合,决策与控制相集成,提出了使单吨能耗在目标范围内尽可能小的低碳运行智能控制方法。该方法由设定值控制、自优化校正、跟踪控制组成。采用工业互联网端边云协同技术,研制了低碳运行的智能控制系统,成功应用于电熔镁炉,取得减少碳排放的显著效果。
Marco ROELCKE, Lisa HEIMANN, Yong HOU, Jianbin GUO, Qiaoyun XUE, Wei JIA, Anne OSTERMANN, Roxana Mendoza HUAITALLA, Moritz ENGBERS, Clemens OLBRICH, Roland W. SCHOLZ, Joachim CLEMENS, Frank SCHUCHARDT, Rolf NIEDER, Xuejun LIU, Fusuo ZHANG
《农业科学与工程前沿(英文)》 2019年 第6卷 第4期 页码 388-402 doi: 10.15302/J-FASE-2019286
The Sino-German research collaboration project, “Recycling of organic residues from agricultural and municipal origin in China” (2008–2012), comprising different interdisciplinary research groups, and also German small and medium-sized enterprises, aimed at developing integrated strategies and solutions for the recycling of organic residues in China. In an intensive crop-livestock agricultural region in the Shunyi District of Beijing, five typical cropping systems were investigated. The research was conducted in the form of analyses of phosphorus (P) in soil, plants, animal feed, animal products, manures, mineral and organic fertilizers and the derivation of the corresponding nutrient balances and P flows. The mean annual P balance surplus was 492 kg·ha ·yr P for the vegetable production system, significantly higher ( <0.05) than that for orchards (130 kg·ha ·yr P) and cereal crops (83 kg·ha ·yr P). Plant-available P (Olsen-P) concentrations of topsoils (0–20 cm) had good correlations with the amounts of P applied (from mineral and organic sources). Compared to results from the Second Chinese National Soil Survey of 1981, mean concentrations of available P in soils of 19 plots investigated in Shunyi District increased 10-fold (from 7.3 to 60 mg·kg ) from 1981 to 2009. On average, the critical limit for Olsen-P concentrations (>30 mg·kg ) that can lead to increased risk of P loss was exceeded in all five cropping systems. With feed additives, the “natural background value” (Chinese Environmental Quality Standard for Soils) of copper and zinc in topsoils was exceeded at several sites. Screening for several substances in the veterinary antibiotic classes of sulfonamides, tetracyclines, and fluoroquinolones revealed widespread topsoil contamination. Calculated livestock densities were 10.6 livestock units per ha arable land in 2007. Animal husbandry is increasingly conducted in large operations, making traditional ways of reuse difficult to apply. Comparing three management systems for treatment of organic residues from a pig farm via aerobic (composting) or anaerobic (biogas) treatment in a life cycle assessment, the resulting cropland demand for a sustainable land application of biogas effluent varied between 139 and 288 ha·yr , well above the cropland area owned by the farm (10 ha). The mismatch problems in the above context between business-as-usual and improving performance are framed and discussed as (1) the mismatch between centralized animal husbandry and smallholder farming, (2) the mismatch between livestock density and cropland, (3) nutrient (including P) recycling and increasing organic matter content versus energy production, (4) subsidies for compost production and biogas, as well as (5) advances in the regulatory framework in China.
关键词: cropping systems life cycle assessment North China Plain balances and nutrient flows transdisciplinary approach
标题 作者 时间 类型 操作
A review of traditional and novel detection techniques for melamine and its analogues in foods and animal feed
Mengshi LIN,
期刊论文
Characterising populations living close to intensive farming and composting facilities in England
期刊论文
Model for the Coordinated Development of a Circular Economy in China and Its Application to Energy-intensive
Ji-liang Zheng,Chen Zheng,Pan Chen,Ching Yuan Luk
期刊论文
REGIONAL ASSESSMENT OF SOIL NITROGEN MINERALIZATION IN DIVERSE CROPLAND OF A REPRESENTATIVE INTENSIVE
期刊论文
CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING
期刊论文
High risk factors for pulmonary fungous infection in intensive care units of neurosurgery
ZHU Wenyu, TAN Liping, CHEN Xiangfeng, HUANG Qiang, LAN Qing
期刊论文
Carbon capture for decarbonisation of energy-intensive industries: a comparative review of techno-economic
期刊论文
models to estimate hydrology and diffuse water pollution in North-eastern German lowland catchments with intensive
Muhammad WASEEM, Frauke KACHHOLZ, Jens TRÄNCKNER
期刊论文
Phosphorus status, use and recycling in a Chinese peri-urban region with intensive animal husbandry and
Marco ROELCKE, Lisa HEIMANN, Yong HOU, Jianbin GUO, Qiaoyun XUE, Wei JIA, Anne OSTERMANN, Roxana Mendoza HUAITALLA, Moritz ENGBERS, Clemens OLBRICH, Roland W. SCHOLZ, Joachim CLEMENS, Frank SCHUCHARDT, Rolf NIEDER, Xuejun LIU, Fusuo ZHANG
期刊论文