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Insights into the changes of amino acids, microbial community, and enzymatic activities related with the nutrientquality of product during the composting of food waste

《环境科学与工程前沿（英文）》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1635-y

摘要：

● The highest seed germination index was achieved at 0.3 g/g total solids of food waste.

关键词： Composting     Food waste     Amino acids     Microbial community     Enzymatic activity     Nutrient quality    

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Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological

《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

摘要： Eutrophication is the most widespread water quality issue globally. To date, most efforts to control eutrophication have focused on reductions of external nutrient inputs, yet importance of nutrient stoichiometry and subsequent shift in plankton composition in aquatic ecosystem has been largely neglected. To address eutrophication, improved sanitation is one of the United Nations Sustainable Development Goals, spurring the constructions of wastewater treatment facilities that have improved water quality in many lakes and rivers. However, control measures are often targeted at and effective in removing a single nutrient from sewage and thus are less effective in removing the others, resulting in the changes of nutrient stoichiometry. In general, more effective phosphorus removal relative to nitrogen has occurred in wastewater treatment leading to substantial increases in N/P ratios in effluent relative to the influent. Unfortunately, high N/P ratios in receiving waters can impose negative influences on ecosystems. Thus, long-term strategies for domestic wastewater management should not merely focus on the total reduction of nutrient discharge but also consider their stoichiometric balances in receiving waters.

关键词： Nutrient stoichiometry     Wastewater treatment     Ecosystem functioning     Water quality management    

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Scientifically advanced woody media for improved water quality from livestock woodchip heavy-use areas

Laura Christianson, David DeVallance, Joshua Faulkner, Thomas Basden

《环境科学与工程前沿（英文）》 2017年 第11卷 第3期 doi: 10.1007/s11783-017-0909-7

摘要： Overwintering cattle on pastures in many areas can damage the pasture and lead to impaired water quality. During these times, use of a woodchip heavy-use area (HUA) presents advantages such as a soft, supportive, and dry foot surface for animals and protection of the pasture and pasture soils. However, woodchip HUAs can also be a centralized source of high nutrient loads due to their drainage outflows. A column study was conducted to assess the nutrient load reduction potential of: 1) six types of wood media (including torrefied wood media and biochar) that could be used in a woodchip HUA versus a gravel control, and 2) providing a 48 h retention time within the wood media to enhance nitrogen removal through denitrification. The woody media provided significant liquid waste volume reduction compared to the gravel in simulated events (53%–61% vs. 39% reductions, respectively), and there may be additional liquid storage capacity in the woodchips not utilized during these rapid events. Substantial total nitrogen removal by the wood treatments (mean removal efficiencies>50%) was observed across the simulated events, although nitrate leaching also occurred. Nitrate removal was enhanced during the 48 h retention test which showed removal was governed by availability of labile carbon (i.e., fresh woodchips exhibited>70% nitrate removal). The retention test also indicated biochar mixtures provided some of the best total phosphorus removal, but the greatest benefits across all parameters was provided by the Mixed Hardwood treatment.

关键词： Overwinter     Heavy-use area     Nutrient pollution     Torrefied     Woodchip    

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Managing nutrient for both food security and environmental sustainability in China: an experiment for

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

摘要： The challenges of how to simultaneously ensure global food security, improve nitrogen use efficiency (NUE) and protect the environment have received increasing attention. However, the dominant agricultural paradigm still considers high yield and reducing environmental impacts to be in conflict with one another. Here we examine a Three-Step-Strategy of past 20 years to produce more with less in China, showing that tremendous progress has been made to reduce N fertilizer input without sacrificing crop yield. The first step is to use technology for in-season root-zone nutrient management to significantly increase NUE. The second is to use technology for integrated nutrient management to increase both yield and NUE by 15%–20%. The third step is to use technology for integrated soil-crop system management to increase yield and NUE by 30%–50% simultaneously. These advances can thus be considered an effective agricultural paradigm to ensure food security, while increasing NUE and improving environmental quality.

关键词： integrated nutrient management     integrated soil-crop system management     environmental protection     food security     resource use efficiency    

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Sugarcane bagasse amendment improves the quality of green waste vermicompost and the growth of

Linlin Cai, Xiangyang Sun, Dan Hao, Suyan Li, Xiaoqiang Gong, Hao Ding, Kefei Yu

《环境科学与工程前沿（英文）》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1240-2

摘要： •Earthworms were able to convert green waste into more plant-available nutrients. •The part of heavy metals content increased in the compost added by earthworm. •The addition of SCB to GW did enhance earthworm biomass and humic acid content. •The resulting vermicomposts were characterized by neutral pH and lower EC value. Vermicomposting is a feasible method for disposing of lignocellulosic waste while generating a useful product. The current study assessed the potential of vermicomposting green waste mixed with sugarcane bagasse in proportions of 25%, 50%, and 75% (v:v, based on dry weight). The suitability was evaluated based on the agrochemical properties, earthworm biomass, and phytotoxicity. The final vermicomposts exhibited near-neutral pH values (7.1–7.6), and lower EC values (0.43–0.72 mS/cm) and C:N ratios (14.1–19.9).The content of available nutrients and CEC for all the vermicomposts exceeded those of the control compost (without earthworms). For vermicomposts, the average values of NO3–-N, AP, AK, and CEC were 53, 517, 1362 mg/kg, and 158 cmol/kg, respectively. The total contents of heavy metals increased in all vermicompost treatments compared to control composts with the following average final percentages: Zn (2.0%), Cr (15.5%), Pb (23.4%), and Cu (44.3%), but these amounts were safe for application in agroforestry. The addition of sugarcane bagasse to green waste significantly increased the content of total humic substance, humic acid and urease activity, acid and alkaline phosphatase activity, and Eiseniafetida reproduction. The addition of 25% sugarcane bagasse to green waste decreased the toxicity to germinating seeds. These results revealed that vermicomposting is a feasible way to degrade green waste into a value-added chemical product.

关键词： Green waste     Earthworms     Sugarcane bagasse     Vermicomposting     Nutrient recovery    

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HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER: AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS

《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

摘要：

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    

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MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

《农业科学与工程前沿（英文）》 2021年 第8卷 第1期

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Pelagic-benthic coupling of the microbial food web modifies nutrient cycles along a cascade-dammed river

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1484-5

摘要：

• Structure of multi-trophic microbial groups were analyzed using DNA metabarcoding.

关键词： Reservoir     Multi-trophic     Beta diversity     Predator-prey     Nutrient accumulation    

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bioaccumulations based on a global data set and the implications for aquatic systems with aggravating nutrient

《环境科学与工程前沿（英文）》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1471-x

摘要：

• Hg bioaccumulation by phytoplankton varies among aquatic ecosystems.

关键词： Plankton     Hg bioaccumulation     Physiological characteristics     A cross-system analysis     Nutrient compositions     Global data set    

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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

《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

摘要： A riparian ecosystem is an ecological transition zone between a river channel and terrestrial ecosystems. Riparian ecosystems play a vital role in maintaining stream health and bank stabilization. The types of riparian vegetation have changed greatly because of human activities along the Wenyu River. This study examines the impact of riparian vegetation patterns on water pollution due to soil nutrient loss. Four riparian vegetation patterns from the river channel to the upland were chosen as the focus of this study: grassland, cropland, grassland-cropland, and grassland-manmade lawn. The different distributions of soil nutrients along vegetation patterns and the potential risk of nutrient loss were observed and compared. The results showed that riparian cropland has the lowest value of total nitrogen (TN), total phosphorus (TP), available nitrogen (AN), available phosphorus (AP), and organic matter (OM), but it has the highest soil bulk density (BD). The distributions of soil TN, TP, AN, AP, and OM exhibited a declining trend from the upland toward the river channel for riparian cropland, whereas a different trend was observed for the riparian grassland. The vegetation patterns of grassland-cropland and grassland-manmade lawn show that the grassland in the lower slope has more nutrients and OM but lower soil BD than the cropland or manmade lawn in the upper slope. So, the lower-slope grassland may intercept and infiltrate surface runoff from the upland. The lower-slope grassland has higher levels of soil TN, TP, AN, and AP, and thus it may become a new source of nutrient loss. Our results suggest that the management of the riparian vegetation should be improved, particularly in densely populated areas, to control soil erosion and river pollution.

关键词： riparian     vegetation patterns     soil nutrient distribution     nutrient loss     management    

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Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

《环境科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 534-544 doi: 10.1007/s11783-014-0660-2

摘要： In this study, the performance of nitrogen and phosphorus removal in a full-scale closed-loop bioreactor (oxidation ditch) system was simulated using the ASM2d model. Routine data describing the process for two years were compiled for calibration and validation. To overcome the identifiability problem, the classic Bayesian inference approach was utilized for parameter estimation. The calibrated model could describe the long-term trend of nutrient removal and short-term variations of the process performance, showing that the Bayesian method was a reliable and useful tool for the parameter estimation of the activated sludge models. The anoxic phosphate uptake by polyphosphate accumulating organisms (PAO) contributed 71.2% of the total Poly-P storage, which reveals the dominance of denitrifying phosphorus removal process under the oxygen limiting conditions. It was found that 58.7% of the anoxic Poly-P storage and denitrification by PAO in the reactor was achieved in the aerated compartment, implying that the PAO’s anoxic activity was significantly stimulated by the low dissolved oxygen (DO) level in this compartment due to the oxygen gradient caused by brush aerator.

关键词： activated sludge model     Bayesian inference     biological nutrient removal     closed-loop bioreactor     oxidation ditch     denitrifying polyphosphate accumulating organisms    

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论我国饲料工业的标准化工作及其产品的质量管理

张子仪

《中国工程科学》 2001年 第3卷 第7期   页码 30-36

摘要：

上个世纪末，我国饲料工业总产量比改革开放前增长了近70倍。1999年全国配合饲料合格率也从20世纪80年代的40%～60%提高到95.7%，这是一个巨大的成就。但目前饲料工业标准化工作则相对滞后。入世以后，我国饲料工业标准化体系将面临着与国际质量管理和质量保证标准的接轨以及与环境管理系列标准的配套问题。为此，在近期内应把握时机，及时作好我国饲料工业标准化工作水平的提高及更新换代。当前应重点抓紧饲料安全性标准的增删与修订。对饲料卫生标准、饲料原料标准、饲料质量监测技术及生物学效价评定等方面的标准必须全国统一；而对饲养标准则应因地制宜分类设置，根据具体情况可以跨省区设一类饲养标准，也可以在一个省或区设多种类型的饲养标准。

当前，饲料市场各个流通环节中的法制建设任务仍然十分艰巨。要坚决杜绝一切有损社会、生态效益的饲料添加剂进入市场；特别要严密监视国外活菌制剂类饲料及一切激素类饲料添加剂非法进入我国市场。要加强保护我国目前尚保留着的大面积净土；要为合法的、科学的饲料添加剂正名。这是争创“中国产绿色产品”品牌，提高我国饲料工业产品市场竞争能力的重要保证。

关键词： 饲料工业     标准化工作     安全性     国际环境管理系列标准     饲养标准    

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Water---- and nutrient and energy---- systems in urbanizing watersheds

Rodrigo VILLARROEL WALKER, Michael Bruce BECK, Jim W. HALL

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 596-611 doi: 10.1007/s11783-012-0445-4

摘要： Driven by considerations of sustainability, it has become increasingly difficult over the past 15–20 years — at least intellectually — to separate out the water infrastructure and water metabolism of cities from their intimately inter-related nutrient and energy metabolisms. Much of the focus of this difficulty settles on the wastewater component of the city’s water infrastructure and its associated fluxes of nutrients (N, P, C, and so on). Indeed, notwithstanding the massive volumes of these materials flowing into and out of the city, the notion of an urban nutrient infrastructure is conspicuous by its absence. Likewise, we do not tend to discuss, or conduct research into, “soilshed” agencies, or soilshed management, or Integrated Nutrient Resources Management (as opposed to its most familiar companion, Integrated Water Resources Management, or IWRM). The paper summarizes some of the benefits (and challenges) deriving from adopting this broader, multi-sectoral “systems” perspective on addressing water-nutrient-energy systems in city-watershed settings. Such a perspective resonates with the growing interest in broader policy circles in what is called the “water-food-energy security nexus”. The benefits and challenges of our Multi-sectoral Systems Analysis (MSA) are illustrated through computational results from two primary case studies: Atlanta, Georgia, USA; and London, UK. Since our work is part of the International Network on Cities as Forces for Good in the Environment (CFG; see www.cfgnet.org), in which other case studies are currently being initiated — for example, on Kathmandu, Nepal — we close by reflecting upon these issues of water-nutrient-energy systems in three urban settings with quite different styles and speeds of development.

关键词： cities     climate change     energy sector     nutrient sector     systems analysis     resource recovery     water-food-energy security    

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Mass loss and nutrient dynamics during litter decomposition in response to warming and nitrogen addition

Haiyan REN, Jie QIN, Baolong YAN, Alata, Baoyinhexige, Guodong HAN

《农业科学与工程前沿（英文）》 2018年 第5卷 第1期   页码 64-70 doi: 10.15302/J-FASE-2017194

摘要： Plant litter decomposition has been studied extensively in the context of both warming and increased atmospheric nitrogen deposition. However, the temporal patterns of mass loss and nutrient release in response to warming and nitrogen addition remain unclear. A 2-year decomposition experiment aimed to examine the effects of warming and nitrogen addition on decomposition rate, and nitrogen and phosphorus dynamics. The effects of warming and nitrogen addition on decomposition of litter of , a dominant species in a desert steppe of northern China, were studied. Warming and nitrogen addition significantly enhanced litter mass loss by 10% and 16%, respectively, and moreover promoted nitrogen and phosphorus release from the litter in the first year of decomposition, followed by an immobilization period. The interactive effects of warming and nitrogen addition on mass loss, nitrogen and phosphorus concentrations of litter were also found during the decomposition. This study indicates that warming and nitrogen addition increased litter mass loss through altering litter quality. These findings highlight that interactions between climate change and other global change factors could be highly important in driving decomposition responses.

关键词： climate warming     grassland     litter decomposition     nitrogen deposition     nutrient release    

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MANURE AND METROPOLES—A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

Daan VERSTAND, Theun VELLINGA, Krijn POPPE, Pieter de WOLF

《农业科学与工程前沿（英文）》 2021年 第8卷 第1期   页码 182-187 doi: 10.15302/J-FASE-2020364

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标题 作者 时间 类型 操作

Insights into the changes of amino acids, microbial community, and enzymatic activities related with the nutrientquality of product during the composting of food waste

期刊论文

Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological

期刊论文

Scientifically advanced woody media for improved water quality from livestock woodchip heavy-use areas

Laura Christianson, David DeVallance, Joshua Faulkner, Thomas Basden

期刊论文

Managing nutrient for both food security and environmental sustainability in China: an experiment for

Fusuo ZHANG, Zhenling CUI, Weifeng ZHANG

期刊论文

Sugarcane bagasse amendment improves the quality of green waste vermicompost and the growth of

Linlin Cai, Xiangyang Sun, Dan Hao, Suyan Li, Xiaoqiang Gong, Hao Ding, Kefei Yu

期刊论文

HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER: AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS

期刊论文

MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

期刊论文

Pelagic-benthic coupling of the microbial food web modifies nutrient cycles along a cascade-dammed river

期刊论文

bioaccumulations based on a global data set and the implications for aquatic systems with aggravating nutrient

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

Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

期刊论文

论我国饲料工业的标准化工作及其产品的质量管理

张子仪

期刊论文

Water---- and nutrient and energy---- systems in urbanizing watersheds

Rodrigo VILLARROEL WALKER, Michael Bruce BECK, Jim W. HALL

期刊论文

Mass loss and nutrient dynamics during litter decomposition in response to warming and nitrogen addition

Haiyan REN, Jie QIN, Baolong YAN, Alata, Baoyinhexige, Guodong HAN

期刊论文

MANURE AND METROPOLES—A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

Daan VERSTAND, Theun VELLINGA, Krijn POPPE, Pieter de WOLF

期刊论文