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Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

《环境科学与工程前沿（英文）》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1564-1

摘要：

● A new model for bloom control in open land scape water was constructed.

关键词： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold     Control model    

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A green eco-environment for sustainable development: framework and action

Xuejun LIU, Wen XU, Zhipeng SHA, Yangyang ZHANG, Zhang WEN, Jingxia WANG, Fusuo ZHANG, Keith GOULDING

《农业科学与工程前沿（英文）》 2020年 第7卷 第1期   页码 67-74 doi: 10.15302/J-FASE-2019297

摘要：

Following its 40-year reform and ‘Open Door’ policy, China has recently proposed a new approach to green development and rural revitalization—the idea of Agriculture Green Development (AGD), with the key feature of creating a green eco-environment. In this mini-review we introduce the definition, theory, framework and major components of a green eco-environment as a key part of the AGD. We define a green eco-environment as including four key elements or measures: (1) a green eco-environmental indicator system; (2) environmental monitoring and warning networks; (3) emission standards and environmental thresholds for key pollutants; (4) emission controls and pollution remediation technologies. We have used Quzhou County (a typical county in the center of the North China Plain) as an example to show how detailed air, water and soil monitoring networks, as well as improved farmer practices and pollution control measures (especially ammonia emission mitigation and PM pollution reduction), can begin to create a green eco-environment in China and that AGD is possible. We conclude by stressing the need to improve the framework and practice for a green eco-environment, especially the importance of linking proposals and practices for a green eco-environment with the United Nations high priority Sustainable Development Goals.

关键词： monitoring networks     environmental thresholds     ammonia emission mitigation     green ecological environment     Quzhou County    

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多径瑞利衰落信道下AQAM系统最佳信噪比门限值的研究

高欢芹,酆广增,朱琦

《中国工程科学》 2006年 第8卷 第1期   页码 67-71

摘要：

自适应调制根据瞬时信道信噪比选择适当的调制方式，能够改善系统的BER性能以及平均吞吐量性能。在常用于高速移动环境的六径瑞利衰落信道模型下，研究自适应调制系统的最佳信噪比门限值，使系统的平均吞吐量最大，同时保证了目标BER性能，得到的最佳门限值可以用于ITU-R M1225 Vehicular Test A模型的自适应调制系统。

关键词： 自适应调制     AQAM     最佳门限值    

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An overview of the environmental finance policies in China: retrofitting an integrated mechanism forenvironmental management

LI Wei,HU Mengze

《环境科学与工程前沿（英文）》 2014年 第8卷 第3期   页码 316-328 doi: 10.1007/s11783-014-0625-5

摘要： Considering the significant roles of the policies in developing environmental finance, an overview is conducted on the environmental finance policies (EFPs) in China. This paper analyzed the definition, scope, evolution and main instruments of EFPs. The implementation progress of financial activities on each instrument are investigated respectively. Then the experiences learned from and failures discovered in the development of the EFPs are discussed well recommendations for further improvement of the EFPs and their implementation are provided. Our study found that the EFPs have been established in China after a four-phase evolution since the early 1980s. The policies have played a critical role in leading to a rapid development in environmental finance by involving more financial instruments to accomplish the objective-led environmental plans. Driven by the policies, the new green credit (GC), green security (GS), and green insurance (GI) instruments have been phased in as supplements to the conventional command and control approaches to improve the environmental governance of financial activities and pollution sources. However, the market mechanism of financial institution is limited due to their defensive and incapable performance on implementation some of EFP instruments. To further strengthen the effectiveness of EFPs in facilitating environmental management, recommendations are made mainly on the aspects including developing more specific policy guidelines, enhancing information sharing and disclosure, providing sufficient economic incentives, establishing environmental liabilities with financial activities, and involving issues related to climate change, and biodiversity and ecosystem service.

关键词： environmental finance policy     integrated mechanism     phased evolution     implementation progress     financial institution     environmental management    

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Trends of environmental accidents and impact factors in China

Pengli XUE, Weihua ZENG

《环境科学与工程前沿（英文）》 2011年 第5卷 第2期   页码 266-276 doi: 10.1007/s11783-010-0267-1

摘要： An overview of the spatial and temporal variations of the environmental accidents in China in recent years was presented in this paper using available data. The results showed that the frequency of pollution accidents was significantly decreased, from 3462 in 1990 to 462 in 2007. The water and air pollution accidents were found to be the dominant types, accounting for more than 80% of the total accidents. Considering the classification of environmental accidents at 4 scales, the general environmental accident, i.e., the least serious type, was the most frequent event, taking up 58.98% of the total pollution accidents. In addition, the distribution of environmental accidents was generally in accordance with the industrial layout in the country during the past decade. It is very important to note that the extraordinarily severe environmental accidents showed an increasing trend in underdeveloped regions, which was caused by the transfer and the development of heavy polluted industry in these areas. As to the losses of environmental accidents, the casualties presented an obvious reduction tendency, while the direct economic loss per accident tended to climb up. Furthermore, some key factors that affect the spatial and temporal tendencies of environmental accidents in China were discussed and some suggestions were put forward, hoping to shed light on environmental risk management and emergency plans making associated with environmental accidents in China.

关键词： environmental accidents     spatial and temporal trends     environmental risk    

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Why does environmental compliance cost more than penalty?—A legal analysis on environmental acts of enterprises in China

DONG Hongwei

《环境科学与工程前沿（英文）》 2007年 第1卷 第4期   页码 434-442 doi: 10.1007/s11783-007-0069-2

摘要： In the environmental protection field of China, due to lower law-breaking cost but higher law-abiding cost , it is a common case that the enterprise chooses to break through the law on purpose. The punishment to the unlawful pr

关键词： law-abiding     punishment     environmental protection     law-breaking     enterprise    

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Analysis of the current situation of environmental policy of China and establishment of distributed environmental

Chaoyang FU,Wangfeng LI

《环境科学与工程前沿（英文）》 2015年 第9卷 第2期   页码 310-316 doi: 10.1007/s11783-014-0658-9

摘要： In this study, China’s current macro-environmental policies as well as their implementation and management tools are analyzed. By using the basic economic methodology, detailed studies are conducted focusing on the implementation effect of contemporary China’s typical environmental policy of the total pollutant discharge quantity control type, and also the two types of environmental management tools are compared from the perspective of implementation costs and policy uncertainty. By introduction of distributed management tools into the implementation of environmental policies, market-oriented means and the methods of economic analysis are introduced into environmental policy decision-making mechanisms, which could afford a new method for changing the current relatively low efficiency of environmental policy, solving the problem of “government failure” in environmental policy implementation, and providing a new way to make environmental policy system more flexible and more efficient. It is of great practical significance to solve China's current structural, complex and accumulative environmental problems.

关键词： environmental policy     distributed environment policy     distributed parameter model     lumped parameter model    

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Reducing environmental impacts through socioeconomic transitions: critical review and prospects

《环境科学与工程前沿（英文）》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1624-1

摘要：

● Reducing environmental impacts through socioeconomic structural transitions.

关键词： Environmental pressures     Environmental impacts     Nexus     Supply chains     Trade     Coupled systems    

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Hydrogel photocatalysts for efficient energy conversion and environmental treatment

《能源前沿（英文）》 2021年 第15卷 第3期   页码 577-595 doi: 10.1007/s11708-021-0756-x

摘要： Photocatalysts have attracted great research interest owing to their excellent properties and potential for simultaneously addressing challenges related to energy needs and environmental pollution. Photocatalytic particles need to be in contact with their respective media to exhibit efficient photocatalytic performances. However, it is difficult to separate nanometer-sized photocatalytic materials from reaction media later, which may lead to secondary pollution and a poor recycling performance. Hydrogel photocatalysts with a three-dimensional (3D) network structures are promising support materials for photocatalysts based on features such as high specific surface areas and adsorption capacities and good environmental compatibility. In this review, hydrogel photocatalysts are classified into two different categories depending on their elemental composition and recent progresses in the methods for preparing hydrogel photocatalysts are summarized. Moreover, current applications of hydrogel photocatalysts in energy conversion and environmental remediation are reviewed. Furthermore, a comprehensive outlook and highlight future challenges in the development of hydrogel photocatalysts are presented.

关键词： hydrogel     photocatalysts     energy conversion     environmental treatment    

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NewIndustrial Revolution and Environmental Protection

Qian Yi

《工程管理前沿（英文）》 2014年 第1卷 第1期   页码 71-75 doi: 10.15302/J-FEM-2014011

摘要： Serious environmental problems have appeared in China since the rapid economic growth 30 years ago, which affect human's health and become a limiting factor for further development. It has brought about the rethinking of traditional ways for economy development and environmental protection, and realized that the change in the model of development and environment protection is of significance. A new industrial revolution is needed for protecting the environment and promoting sustainable development. This paper discusses the characteristics of the new industrial revolution for sustainable development including cleaner production, circular economy, and industrial ecology. Lessons from China and abroad will be introduced to prove that new strategies for environment protection and economic development are needed.

关键词： industrial ecology     new industrial revolution     environmental protection     cleaner production     circular economy    

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Addressing the environmental risk of persistent organic pollutants in China

Bin WANG, Jun HUANG, Shubo DENG, Xiaoling YANG, Gang YU

《环境科学与工程前沿（英文）》 2012年 第6卷 第1期   页码 2-16 doi: 10.1007/s11783-011-0370-y

摘要： The Stockholm Convention on persistent organic pollutants (POPs) was adopted in 2001. This year is the 10th anniversary of the adoption of the Convention. Until now, 22 chemicals or chemical categories have been listed as POPs in the Stockholm Convention. The POPs Research Center was established in Tsinghua University in the same year when the Convention was adopted. In the last ten years, much work has been done by Chinese researchers to understand the environmental risk of POPs in China. This article aims to review the recent research progress of our POPs Research Center and some other Chinese researchers’ studies in addressing the environmental risk of POPs, including the priority screening and inventory study of POPs, monitoring and modeling of POPs pollution and exposure, and environmental risk assessment and modeling of POPs. Although great advances in addressing the environmental risk of POPs have been made in recent years, we are still facing quite a few problems, such as data scarcity and uncertainty in environmental risk assessment of POPs. The study on the effect of POPs mixtures is in its infancy and currently POPs are usually assessed from legal perspective by risk assessment of single chemicals. These problems should be well addressed by further efforts. Further studies should also be taken in future to study environment risk of POPs by considering aspects of coupled dynamics between climate processes and POPs. Such sound scientific, risk-based information can support decision-making aiming to effectively minimize the risk level of POPs.

关键词： persistent organic pollutant (POPs)     environmental risk assessment     inventory     environmental monitoring     fugacity model     emerging POPs    

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Insight of chemical environmental risk and its management from the vinyl chloride accident

《环境科学与工程前沿（英文）》 2023年 第17卷 第4期 doi: 10.1007/s11783-023-1652-x

摘要： The combustion of vinyl chloride (VC) after the train derailment accident in Ohio, USA in February, 2023 has caused widespread concern around the world. This paper tried to analyze several issues concerning the accident, including the appropriateness of the VC combustion in the emergency response in this accident, the meanings of so-called “controlled combustion”, the potential environmental risks caused by VC and combustion by-products, and follow-up work. In our view, this accident had surely caused environmental and health risks to some extent. Hence, a comprehensive environmental risk assessment is necessary, and then the site with risk should be comprehensively remediated, hazardous waste should be harmlessly treated as soon as possible. Finally, this accident suggests that further efforts should be taken to bridge the gap between chemical safety management and their environmental risk management.

关键词： Vinyl chloride     Combustion     Chemical safety management     Environmental risk     Emerging contaminants    

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Appreciating the role of big data in the modernization of environmental governance

《工程管理前沿（英文）》 2022年 第9卷 第1期   页码 163-169 doi: 10.1007/s42524-021-0185-x

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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

摘要：

• 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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Application of proteomics in environmental science

Xiaona CHU, Jiangyong HU, Say Leong ONG,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 393-403 doi: 10.1007/s11783-009-0145-x

摘要： Proteomics involves the separation of proteins, identification of the amino acid sequence of the interested or target proteins, study of the function of the proteins, modification, structure and ultimate assignments to functional pathways in the cell. The proteomic investigations have contributed greatly to human diseases studies, new drugs discovery researches, and environmental science in recent years. This article provides a review on the development of the main proteomic technologies, including both the gel based and non-gel based technologies, and their applications in environmental science. Proteomic technologies have been utilized in the environmental stresses studies to analyze the induction or reduction of proteins at expression level and identify the target proteins to investigate their function in response to environmental stresses, such as high or low pH, oxidation stress, and toxic chemicals. Such protein responses are also helpful to understand the mechanisms of some cellular activities and the functions of some proteins.

关键词： proteomics     environmental stress     two dimensional (2D) gel electrophoresis     mass spectrometry    

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标题 作者 时间 类型 操作

Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

期刊论文

A green eco-environment for sustainable development: framework and action

Xuejun LIU, Wen XU, Zhipeng SHA, Yangyang ZHANG, Zhang WEN, Jingxia WANG, Fusuo ZHANG, Keith GOULDING

期刊论文

多径瑞利衰落信道下AQAM系统最佳信噪比门限值的研究

高欢芹,酆广增,朱琦

期刊论文

An overview of the environmental finance policies in China: retrofitting an integrated mechanism forenvironmental management

LI Wei,HU Mengze

期刊论文

Trends of environmental accidents and impact factors in China

Pengli XUE, Weihua ZENG

期刊论文

Why does environmental compliance cost more than penalty?—A legal analysis on environmental acts of enterprises in China

DONG Hongwei

期刊论文

Analysis of the current situation of environmental policy of China and establishment of distributed environmental

Chaoyang FU,Wangfeng LI

期刊论文

Reducing environmental impacts through socioeconomic transitions: critical review and prospects

期刊论文

Hydrogel photocatalysts for efficient energy conversion and environmental treatment

期刊论文

NewIndustrial Revolution and Environmental Protection

Qian Yi

期刊论文

Addressing the environmental risk of persistent organic pollutants in China

Bin WANG, Jun HUANG, Shubo DENG, Xiaoling YANG, Gang YU

期刊论文

Insight of chemical environmental risk and its management from the vinyl chloride accident

期刊论文

Appreciating the role of big data in the modernization of environmental governance

期刊论文

NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

期刊论文

Application of proteomics in environmental science

Xiaona CHU, Jiangyong HU, Say Leong ONG,

期刊论文