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Efficiency evaluation of government investment for air pollution control in city clusters: A case fromthe Beijing–Tianjin–Hebei areas in China

《工程管理前沿（英文）》   页码 612-624 doi: 10.1007/s42524-023-0269-x

摘要： Air pollution poses a significant threat to human health, particularly in urban areas with high levels of industrial activities. In China, the government plays a crucial role in managing air quality through the Air Pollution Prevention and Control Action Plan. The government provides direct financial support and guides the investment direction of social funds to improve air quality. While government investment has led to improvements in air quality across China, concerns remain regarding the efficiency of such large-scale investments. To address this concern, we conducted a study using a three-stage data envelopment analysis (DEA)-Malmquist model to assess the efficiency of government investment in improving air quality in China. Our analysis revealed regional disparities and annual dynamic changes. Specifically, we focused on the Beijing–Tianjin–Hebei areas as a case study, as the investment primarily targeted industrial activities in urban areas with the goal of improving living conditions for urban residents. The results demonstrate significant differences in investment efficiency between regions. Beijing exhibits relatively high investment efficiency, while cities in Hebei Province require improvement. We identified scale inefficiency, which refers to the ratio of air pollutant reduction to financial investment, as the main factor contributing to regional disparities. However, we found that increasing the total investment scale can help mitigate this effect. Furthermore, our study observed positive but fluctuating annual changes in investment efficiency within this city cluster from 2014 to 2018. Investment-combined technical efficiency, which represents the investment strategy, is the main obstacle to improving yearly investment efficiency. Therefore, in addition to promoting investment strategies at the individual city level, it is crucial to enhance coordination and cooperation among cities to improve the investment efficiency of the entire city cluster. Evaluating the efficiency of government investment and understanding its influencing factors can guide future investment measures and directions. This knowledge can also support policymaking for other projects involving substantial investments.

关键词： investment efficiency     government investment     air pollution control     three-stage DEA-Malmquist model    

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近三十年来中国城市土壤有机碳变化对实现碳中和的启示

张真瑞, 夏星辉, 杨志峰

《工程（英文）》 2023年 第28卷 第9期   页码 11-15 doi: 10.1016/j.eng.2022.04.014

关键词： China     city areas     THE AUTHORS.Published     behalf     Company     Engineering     Education Press     Academy     carbon changes     decades: Implications    

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The Exploration and Practice of the Development of Green Eco-Urban Areas in Guangzhou International FinancialCity

Jia-meng Chen,Peng Liu

《工程管理前沿（英文）》 2016年 第3卷 第1期   页码 87-96 doi: 10.15302/J-FEM-2016003

摘要： Active exploration has been carried out to determine a pattern for developing green eco-urban areas in the Starting Area of Guangzhou International Financial City with an emphasis on the core role of comprehensive green arrangement. By comparing and analyzing existing research, development of green technologies at home and abroad, and indicator systems of green urban areas of similar sizes, the builders developed a green ecological indicator system. They proposed a new concept called “district-level indicator” in order to emphasize the importance of classifying indicators according to different project situations. By verifying the indicators for all land parcels and assessing future costs and efficiency, experience accumulated in this project can be beneficial for future green eco-urban area development projects.

关键词： Guangzhou International Financial City     green eco-urban area     indicator system     case verification    

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Highlights of special issue on ‘Agriculture in Water-Limited Areas’

Pute WU

《农业科学与工程前沿（英文）》 2017年 第4卷 第2期   页码 123-125 doi: 10.15302/J-FASE-2017147

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Innovation Ecosystem for Green Smart City Building in China

Jin Chen

《工程管理前沿（英文）》 2015年 第2卷 第4期   页码 325-330 doi: 10.15302/J-FEM-2015058

摘要： Green Smart City (GSC), is one of the new types of cities which integrates eco-concepts and information technologies. As GSC construction is a resource intensive process, it requires a large amount of knowledge, information, talent and capital. Thus, setting up an innovation ecosystem is an astute way to promote the construction of a GSC. This paper, based on the case study by the Insigma Group, tries to explore the rules of innovation ecosystem building for the construction of GSCs in China.

关键词： green smart city     resource     innovation ecosystem building    

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Co-infection of HIV and parasites in China: Results from an epidemiological survey in rural areas ofFuyang city, Anhui province, China

Li-Guang TIAN MPH, Jia-Xu CHEN PhD, Yu-Chun CAI BM, Jian GUO MPH, Xiao-Mei TONG, Qin LIU DVM, Xiao-Nong ZHOU PhD, Tian-Ping WANG PhD, Xiao-Mei YIN, Wei-Duo WU, Li ZHOU, Feng-Feng WANG, Zhen-Li WANG MSc, Guo-Jin CHENG, Peter STEINMANN PhD, Lan-Hua LI MSc,

《医学前沿（英文）》 2010年 第4卷 第2期   页码 192-198 doi: 10.1007/s11684-010-0039-0

摘要： The aim of this study was to investigate epidemiological characteristics of co-infection of HIV and intestinal parasites in a HIV/AIDS highly endemic area in China. A cross-sectional survey was carried out in two villages where HIV/AIDS prevalence in residents was over 1%. Stool samples of all residents in the two targeted villages were examined for the presence of intestinal parasites. Blood examination was performed for the HIV infection detection and anemia test. A questionnaire survey was carried out in all residents participating in the study. A total of 769 individuals were enrolled in the investigation, 720 of whom were involved in stool examination of intestinal parasites. The infection rates of parasites in the residents of the targeted villages were as follows: 0.56% for , 4.03% for Hookworm, 0.28% for , 0.42% for , 21.39% for , 3.89% for , 1.67% for spp., 4.44% for spp., and no infection for . The overall infection rate of intestinal worms was 4.72%, intestinal parasite infection rate was 24.31%, the anemia prevalence rate was 34.68%, the co-infection rate of HIV and intestinal helminthes 2.17%, the co-infection rate of HIV and intestinal protozoa 28.26%, of which the co-infection rates of HIV and , and HIV and spp. were 19.57% and 13.04%, respectively. A significant difference of spp. infection rate was found between HIV-positive group (13.04%) and HIV-negative group (4.70%) (<0.05). Higher prevalence of anemia (34.68%) occurred in the study villages, particularly in children (>50%) and women (>39%). It was concluded that the infection rate of intestinal protozoa in the residents was higher than that of intestinal helminthes in the local setting, and a same pattern appeared in the co-infection rate of HIV and parasites. An interesting finding is that the infection rate of spp. among the HIV-positives was significantly higher than that in the HIV-negatives, and children and women had higher anemia prevalence.

关键词： human immunodeficiency virus (HIV)     acquired immunodeficiency syndrome (AIDS)     co-infection     intestinal parasites     helminthes     protozoa     China    

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The development of roadside green swales in the Chinese Sponge City Program: Challenges and opportunities

《工程管理前沿（英文）》   页码 566-581 doi: 10.1007/s42524-023-0267-z

摘要： Roadside green swales have emerged as popular stormwater management infrastructure in urban areas, serving to mitigate stormwater pollution and reduce urban surface water discharge. However, there is a limited understanding of the various types, structures, and functions of swales, as well as the potential challenges they may face in the future. In recent years, China has witnessed a surge in the adoption of roadside green swales, especially as part of the prestigious Sponge City Program (SCP). These green swales play a crucial role in controlling stormwater pollution and conserving urban water resources by effectively removing runoff pollutants, including suspended solids, nitrogen, and phosphorus. This review critically examines recent research findings, identifies key knowledge gaps, and presents future recommendations for designing green swales for effective stormwater management, with a particular emphasis on ongoing major Chinese infrastructure projects. Despite the growing global interest in bioswales and their significance in urban development, China’s current classification of such features lacks a clear definition or specific consideration of bioswales. Furthermore, policymakers have often underestimated the adverse environmental effects of road networks, as reflected in existing laws and planning documents. This review argues that the construction and maintenance of roadside green swales should be primarily based on three critical factors: Well-thought-out road planning, suitable construction conditions, and sustainable long-term funding. The integration of quantitative environmental standards into road planning is essential to effectively address the challenge of pollution from rainfall runoff. To combat pollution associated with roads, a comprehensive assessment of potential pollution loadings should be carried out, guiding the appropriate design and construction of green swales, with a particular focus on addressing the phenomenon of first flush. One of the major challenges faced in sustaining funds for ongoing maintenance after swale construction. To address this issue, the implementation of a green finance platform is proposed. Such a platform would help ensure the availability of funds for continuous maintenance, thus maximizing the long-term effectiveness of green swales in stormwater management. Ultimately, the findings of this review aim to assist municipal governments in enhancing and implementing future urban road designs and SCP developments, incorporating effective green swale strategies.

关键词： grass swale     infiltration swale     bioswale     wet swale     sponge city    

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数字城市到智慧城市的思考与探索

李成名,刘晓丽

《中国工程科学》 2013年 第15卷 第5期   页码 4-7

摘要：

首先综述了构建权威、唯一、通用的数字城市地理空间框架的必要性，然后详细介绍了我国数字城市建设的总体思路、进展情况、发挥的作用及产生的影响。接下来，针对时代发展、技术进步和需求变化，论述了当前地理空间框架面临的全新发展机遇和挑战，以及存在的问题，明确指出了智慧城市阶段时空信息框架的建设目标与内容，展望了下一步技术突破的方向。

关键词： 数字城市     智慧城市     时空信息云平台    

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China’s Sponge City construction: A discussion on technical approaches

Haifeng Jia, Zheng Wang, Xiaoyue Zhen, Mike Clar, Shaw L. Yu

《环境科学与工程前沿（英文）》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0984-9

摘要： Since 2014, China has been implementing the Sponge City Construction initiative, which represents an enormous and unprecedented effort by any government in the world for achieving urban sustainability. According to preliminary estimates, the total investment on the Sponge City Plan is roughly 100 to 150 million Yuan (RMB) ($15 to $22.5 million) average per square kilometer or 10 Trillion Yuan (RMB) ($1.5 Trillion) for the 657 cities nationwide. The Sponge City Plan (SCP) calls for the use of natural processes such as soil and vegetation as part of the urban runoff control strategy, which is similar to that of low impact development (LID) and green infrastructure (GI) practices being promoted in many parts of the world. The SCP includes as its goals not only effective urban flood control, but also rainwater harvest, water quality improvement and ecological restoration. So far, the SCP implementation has encountered some barriers and challenges due to many factors. The present paper presents a review of those barriers and challenges, offers discussions and recommendations on several technical aspects such as control goals and objectives; planning/design and construction of LID/GI practices; performance evaluation. Several key recommendations are proposed on Sponge City implementation strategy, Site-specific regulatory framework and technical guidance, Product innovation and certification, LID/GI Project financing, LID/GI professional training and certification, public outreach and education. It is expected that the successful implementation of the SCP not only will bring about a sustainable, eco-friendly urbanization process in China, but also contribute enormously to the LID/GI research and development with the vast amount of relevant data and experiences generated from the Sponge City construction projects.

关键词： Low impact development (LID)     Green infrastructure (GI)     Sponge City     Barriers     Construction strategies    

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Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

《环境科学与工程前沿（英文）》 2013年 第7卷 第5期   页码 746-755 doi: 10.1007/s11783-013-0551-y

摘要： This paper discusses the use of substance flow analysis (SFA) as a tool to support quantified research on urban drainage systems. Based on the principle of mass balance, a static substance flow model is established to describe and examine the routes and intensities of water, chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) for a representative hypothetical city (RH city) in China, which is a devised and scaled city using statistical characteristics of urban circumstances at the national level. It is estimated that the annual flux of water, COD, TN and TP through the urban drainage system in 2010 was 55.1 million m , 16037.3 t, 1649.5 t and 209.7 t, respectively. The effluent of wastewater treatment plant (WWTP) was identified as the most important pathway for pollutant emissions, which contributed approximately 60% of COD, 65% of TN and 50% of TP to receiving water. During the wastewater treatment process, 1.0 million m , 7042.5 t, 584.2 t and 161.4 t of the four studied substances had been transmitted into sludge, meanwhile 3813.0 t of COD and 394.0 t of TN were converted and emitted to the atmosphere. Compared with the representative hypothetical city of 2000, urban population and the area of urban built districts had expanded by approximately 90% and 80% respectively during the decade, resulting in a more than threefold increase in the input of substances into the urban drainage system. Thanks to the development of urban drainage systems, the total loads of the city were maintained at a similar level.

关键词： substance flow analysis (SFA)     urban drainage system     representative hypothetical city (RH city)     water pollution control    

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Prevalence and causes of air pollution and lung cancer in Xuanwei City and Fuyuan County, Yunnan Province

null

《医学前沿（英文）》 2012年 第6卷 第2期   页码 217-220 doi: 10.1007/s11684-012-0192-8

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破解城市十大难题基本公式及城市泛中心论

董国良

《中国工程科学》 2006年 第8卷 第6期   页码 7-13

摘要：

总结了城市可持续发展面临着占地多、交通堵、停车难、步行难、能耗高、效率低、治安差、不宜居及交通事故频发、交通投资巨大等十大难题，给出了破解这些难题的基本公式；在各项基本公式的指引下，由诸多复杂的城市模式方案中升华而产生的节约·生态·畅通城市新模式(JD模式)一旦得到推广，十大难题将全面破解，城市宜居指数将提高1倍；可持续发展的城市格局不应该像象棋棋盘一样锁定中心位置，而应该像围棋棋盘一样各个中心的位置可以在发展中形成和变化，这就是城市泛中心论。

关键词： 城市     可持续发展     交通     城市泛中心论    

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Low Impact Development and Sponge City Construction for Urban Stormwater Management

Haifeng Jia, Shaw L. Yu, Huapeng Qin

《环境科学与工程前沿（英文）》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0989-4

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A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

《农业科学与工程前沿（英文）》 2017年 第4卷 第2期   页码 195-207 doi: 10.15302/J-FASE-2017153

摘要： Severe resource shortage and waste of resource in agricultural production make it necessary to assess efficiency to increase productivity with high efficiency and ensure sustainable agricultural development. This paper adopted an input-oriented data envelopment analysis (DEA) method with the assumption of variable returns to scale to evaluate agricultural production efficiency of 100 major irrigation districts in Northwest China in 2010. Major findings of this paper were as follows: firstly, the average value of total technical efficiency, pure technical efficiency and scale efficiency of those irrigation districts in Northwest China were 0.770, 0.825 and 0.931, respectively; secondly, 30% of irrigation districts were technically efficient, while 42% and 32% of them showed pure technical and scale efficiency respectively. Among inefficient decision-making units, total technical efficiency score varied from 0.313 to 0.966, showing significant geographical differences, but geographical differences of pure technical efficiency was more consistent with that of total technical efficiency; thirdly, input redundancy was evident. Inputs of agricultural population, irrigation area, green water, blue water, consumption of fertilizer and agricultural machinery could be reduced by 34.88%, 40.19%, 43.85%, 47.10%, 41.53% and 42.21% respectively without reducing agricultural outputs. Furthermore, irrigation area, green water and blue water had relatively high slack movement though Northwest China which is short of water resources. Based on these results, this paper drew the following conclusions: First, there is huge potential for Northwest China to improve its agricultural production efficiency, and agro-technology not input scale had greater influence on improvement. Second, farmers needed proper guidance in order to reduce agricultural inputs and it is time to centralize agricultural management for overall agricultural inputs regulation and control.

关键词： agricultural production efficiency     DEA model     input redundancy     irrigation districts     Northwest Arid Areas in China    

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Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

《环境科学与工程前沿（英文）》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1434-2

摘要：

• Regional transportation contributed more than local emissions during haze episodes.

关键词： 2022 Winter Olympics     PM2.5     Source apportionment    

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标题 作者 时间 类型 操作

Efficiency evaluation of government investment for air pollution control in city clusters: A case fromthe Beijing–Tianjin–Hebei areas in China

期刊论文

近三十年来中国城市土壤有机碳变化对实现碳中和的启示

张真瑞, 夏星辉, 杨志峰

期刊论文

The Exploration and Practice of the Development of Green Eco-Urban Areas in Guangzhou International FinancialCity

Jia-meng Chen,Peng Liu

期刊论文

Highlights of special issue on ‘Agriculture in Water-Limited Areas’

Pute WU

期刊论文

Innovation Ecosystem for Green Smart City Building in China

Jin Chen

期刊论文

Co-infection of HIV and parasites in China: Results from an epidemiological survey in rural areas ofFuyang city, Anhui province, China

Li-Guang TIAN MPH, Jia-Xu CHEN PhD, Yu-Chun CAI BM, Jian GUO MPH, Xiao-Mei TONG, Qin LIU DVM, Xiao-Nong ZHOU PhD, Tian-Ping WANG PhD, Xiao-Mei YIN, Wei-Duo WU, Li ZHOU, Feng-Feng WANG, Zhen-Li WANG MSc, Guo-Jin CHENG, Peter STEINMANN PhD, Lan-Hua LI MSc,

期刊论文

The development of roadside green swales in the Chinese Sponge City Program: Challenges and opportunities

期刊论文

数字城市到智慧城市的思考与探索

李成名,刘晓丽

期刊论文

China’s Sponge City construction: A discussion on technical approaches

Haifeng Jia, Zheng Wang, Xiaoyue Zhen, Mike Clar, Shaw L. Yu

期刊论文

Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

期刊论文

Prevalence and causes of air pollution and lung cancer in Xuanwei City and Fuyuan County, Yunnan Province

null

期刊论文

破解城市十大难题基本公式及城市泛中心论

董国良

期刊论文

Low Impact Development and Sponge City Construction for Urban Stormwater Management

Haifeng Jia, Shaw L. Yu, Huapeng Qin

期刊论文

A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

期刊论文

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

期刊论文