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Discussion on Influencing Factors of Water Resources Environment and Strategies for Protecting Water Ecology
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作者 Wangzi Zhou Jing Dong +1 位作者 Qianyi Zhao Qianxun Li 《Journal of World Architecture》 2024年第5期36-41,共6页
At present,the major problems facing the water resource environment worldwide include water pollution,water resource shortage,and water ecosystem degradation.The discharge of industrial wastewater,agricultural non-poi... At present,the major problems facing the water resource environment worldwide include water pollution,water resource shortage,and water ecosystem degradation.The discharge of industrial wastewater,agricultural non-point source pollution,and the discharge of urban sewage lead to a serious decline in water quality,which directly affects the safety of human drinking water and the living environment of aquatic organisms.Additionally,the unbalanced distribution and excessive exploitation of water resources lead to the problem of water shortage in many areas,which then leads to social and economic contradictions and ecological crises.In terms of ecosystems,the phenomena of water ecological degradation and reduction of biodiversity are increasingly obvious,and the carrying capacity of aquatic ecosystems are gradually declining.This paper aims to analyze the natural,social,and economic factors affecting the water resource environment,and propose effective strategies to protect the water ecology.To provide a theoretical basis and practical guidance for the sustainable utilization of water resources and the long-term development of the water ecosystem. 展开更多
关键词 Water resources environmental impact Water ecology Protection strategy
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Environmental Design in the Context of Chinese Regional Culture
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作者 Jiaman Tang 《Journal of World Architecture》 2024年第3期16-21,共6页
Environmental design plays a critical role in shaping human habitats.In the context of increasing homogenization of environmental aesthetics,the pervasive influence of the information age,and challenges in industry gr... Environmental design plays a critical role in shaping human habitats.In the context of increasing homogenization of environmental aesthetics,the pervasive influence of the information age,and challenges in industry growth,the question arises:where does environmental design stand?This article delves into the development of the environmental design industry in view of China’s diverse regional cultural contexts.It analyzes the concepts and interconnections between China’s regional cultures and environmental design,identifies current issues,and proposes strategies for integrating China’s regional cultures into environmental design practices.This exploration provides valuable insights into the evolution of environmental design within the framework of China’s distinct regional cultural characteristics in the contemporary era. 展开更多
关键词 environmental design Problem highlighting Regional culture Chinese characteristics Application strategy
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Study on Environmental Capacity and Sustainable Development Strategy of Scenic Areas ——Taking the Scenic Area of Slender West Lake in Yangzhou for an Example
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作者 周建东 王浩 《Journal of Landscape Research》 2009年第12期33-38,共6页
Taking the scenic area of Slender West Lake in Yangzhou for an example, the quantitative evaluation model of environmental capacity and impact factors limiting sustainable development of scenic area were put forward, ... Taking the scenic area of Slender West Lake in Yangzhou for an example, the quantitative evaluation model of environmental capacity and impact factors limiting sustainable development of scenic area were put forward, and targeted control measures were correspondingly proposed. 展开更多
关键词 SUSTAINABLE development SCENIC area environmental capacity Slender WEST LAKE strategy
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A review on heterogeneous photocatalysis for environmental remediation:From semiconductors to modification strategies 被引量:13
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作者 Huijie Wang Xin Li +5 位作者 Xiaoxue Zhao Chunyan Li Xianghai Song Peng Zhang Pengwei Huo Xin Li 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2022年第2期178-214,共37页
Heterogeneous photocatalysis,an advanced oxidation process,has garnered extensive attention in the field of environmental remediation because it involves the direct utilization of solar energy for the removal of numer... Heterogeneous photocatalysis,an advanced oxidation process,has garnered extensive attention in the field of environmental remediation because it involves the direct utilization of solar energy for the removal of numerous pollutants.However,the application of heterogeneous photocatalysis in environmental remediation has not achieved the expected consequences due to enormous challenges such as low photocatalytic efficiencies and high costs of heterogeneous photocatalysts in large-scale practical applications.Furthermore,pollutants in the natural environment,including water,air,and solid phases,are diverse and complex.Therefore,extensive efforts should be made to better understand and apply heterogeneous photocatalysis for environmental remediation.Herein,the fundamentals of heterogeneous photocatalysis for environmental remediation are introduced.Then,potential semiconductors and their modification strategies for environmental photocatalysis are systematically presented.Finally,conclusions and prospects are briefly summarized,and the direction for the future development of environmental photocatalysis is explored.This review may provide reference directions toward understanding,researching,and designing photocatalytic remediation systems for various environmental pollutants. 展开更多
关键词 POLLUTANT Heterogeneous photocatalysis environmental remediation SEMICONDUCTOR Modification strategy
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Environmental influence of Wuhan urban agglomeration development and strategies of environmental protection 被引量:3
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作者 GAO Qun LIU Ying-tao MAO Han-ying 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2006年第3期616-623,共8页
In Wuhan urban agglomeration (WUA), the population growth and concentration, the industrial development and urban sprawl have been affecting the environment ftmdamentally. Comparing with Yangtze delta metropolitan r... In Wuhan urban agglomeration (WUA), the population growth and concentration, the industrial development and urban sprawl have been affecting the environment ftmdamentally. Comparing with Yangtze delta metropolitan region, the level of urbanization and industrialization of WUA has lagged behind for about 10 years; but the problems in environmental protection and rehabilitation are commonly serious. In the future, WUA should avoid unnecessary mistakes and seek a win-win strategy for economy and environment in its large-scale development stage. Based on the analysis of the changing of main environmental pollutants and the coupled curves in past decades, the paper discussed the important links among the urban environmental pollutions, industry growth and urban sprawl in WUA. It is concluded that the integration of economic and environmental policies in urban development is more required and significant at the large urban agglomeration region. Four proactive and long-term strategies need to be adopted to provide prior guidance and better protection for the development of WUA. 展开更多
关键词 environmental problem urban development Wuhan urban agglomeration STRATEGIES
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High Altitude Frogs (Rana kukonoris) Adopt a Diversified Bethedging Strategy in the Face of Environmental Unpredictability 被引量:1
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作者 Wei CHEN Liqing PENG +3 位作者 Lichun JIANG David A.PIKE Christopher R.FRIESEN Gregory BROWN 《Asian Herpetological Research》 SCIE CSCD 2018年第1期43-49,共7页
Environmental unpredictability can influence strategies of maternal investment among eggs within a clutch. Models predict that breeding females should adopt a diversified bet-hedging strategy in unpredictable environm... Environmental unpredictability can influence strategies of maternal investment among eggs within a clutch. Models predict that breeding females should adopt a diversified bet-hedging strategy in unpredictable environments, but empirical field evidence from Asia is scarce. Here we tested this hypothesis by exploring spatial patterns in egg size along an altitudinal gradient in a frog species (Rana kukunoris) inhabiting the Tibetan Plateau. Within-clutch variability in egg size increased as the environment became variable (e.g., lower mean monthly temperature and mean monthly rainfall at higher altitudes), and populations in environments with more unpredictable rainfall produced eggs that were smaller and more variable in size. We provide support for a diversified bet-hedging strategy in high-altitude environments, which experience dynamic weather patterns and therefore are of unpredictable environmental quality. This strategy may be an adaptive response to lower environmental quality and higher unpredictable environmental variance. Such a strategy should increase the likelihood of breeding success and maximize maternal lifetime fitness by producing offspring that are adapted to current environmental conditions. We speculate that in high-altitude environments prone to physical disturbance, breeding females are unable to consistently produce the optimal egg size due to physiological constraints imposed by environmental conditions (e.g., duration of the active season, food availability). Species and populations whose breeding strategies are adapted to cope with uncertain environmental conditions by adjusting offspring size and therefore quality show a remarkable degree of ability to cope with future climatic changes. 展开更多
关键词 altitude bet-hedging strategy environmental quality egg size within-clutch variation unpredictable environment
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Atomic Level Dispersed Metal–Nitrogen–Carbon Catalyst toward Oxygen Reduction Reaction: Synthesis Strategies and Chemical Environmental Regulation 被引量:3
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作者 Hengbo Yin Huicong Xia +3 位作者 Shuyan Zhao Kexie Li Jianan Zhang Shichun Mu 《Energy & Environmental Materials》 SCIE CSCD 2021年第1期5-18,共14页
For development and application of proton exchange membrane fuel cell(PEMFC) energy transformation technology, the cost performance must be elevated for the catalyst. At present, compared with noble metal-based cataly... For development and application of proton exchange membrane fuel cell(PEMFC) energy transformation technology, the cost performance must be elevated for the catalyst. At present, compared with noble metal-based catalysts, such as Pt-based catalysts, atomically dispersed metal–nitrogen–carbon(M–N–C) catalysts are popularity and show great potential in maximizing active site density, high atom utilization and high activity,making them the first choice to replace Pt-based catalysts. In the preparation of atomically dispersed metal–nitrogen–carbon catalyst, it is difficult to ensure that all active sites are uniformly dispersed, and the structure system of the active sites is not optimal. Based on this, we focus on various approaches for preparing M–N–C catalysts that are conducive to atomic dispersion, and the influence of the chemical environmental regulation of atoms on the catalytic sites in different catalysts. Therefore, we discuss the chemical environmental regulation of the catalytic sites by bimetals, atom clusters, and heteroatoms(B, S, and P). The active sites of M–N–C catalysts are explored in depth from the synthesis and characterization, reaction mechanisms, and density functional theory(DFT)calculations. Finally, the existing problems and development prospects of the current atomic dispersion M–N–C catalyst are proposed in detail. 展开更多
关键词 atomic-level catalyst chemical environmental effects metal-nitrogen-carbon oxygen reduction reaction synthesis strategy
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Environmental Policies and Strategies in Nigeria Oil and Gas Industry: Gains, Challenges and Prospects 被引量:2
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作者 Ephraim Ikechukwu Elenwo Justine Ayaegbunem Akankali 《Natural Resources》 2014年第14期884-896,共13页
The paper reviews environmental policies and strategies in the Nigerian oil and gas industry sector, assessing its efficiency, challenges and prospects. Essentially, the study established that the Environmental Polici... The paper reviews environmental policies and strategies in the Nigerian oil and gas industry sector, assessing its efficiency, challenges and prospects. Essentially, the study established that the Environmental Policies and Strategies of Nigeria Oil and Gas Industry have impacted positively on the Nigerian environment over the years, especially in the area of awareness creation for all stake-holders. In terms of challenges, inefficiency of the regulators due to inadequacy of logistics, poor environmental data base, duplication and overlaps of regulators functions are some of the challenges identified. The prospect of environmental policies and strategies in Nigeria is generally considered to be bright, considering the fact that the industry is still evolving. Relevant recommendations were made on how to achieve improvements. 展开更多
关键词 environment POLICIES STRATEGIES NIGERIA OIL and Gas Industry
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Ecological and Environmental Protection Requirements in China s Regional Coordinated Development Strategy in the New Era 被引量:1
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作者 Jie LI Dake LIU +1 位作者 Wei ZHAO Sheng WANG 《Meteorological and Environmental Research》 CAS 2020年第6期78-81,84,共5页
Starting from the historical evolution of China s regional coordinated development policy and practice,three stages of"enlightenment stage","development stage"and"maturity stage",as well ... Starting from the historical evolution of China s regional coordinated development policy and practice,three stages of"enlightenment stage","development stage"and"maturity stage",as well as the connotation,characteristics and content of implementing regional coordinated development strategy were analyzed.On this basis,from different aspects of industrial distribution,pollutant characteristics and regional environmental protection policy,the existing ecological and environmental protection problems in China s regional coordinated development in the new era were analyzed,and some suggestions for the next step were put forward.It is necessary to follow the"four ones"concept from the overall point of view,implement"three lines and one list"from the perspective of the width of the access red line,strengthen"joint prevention and control"from the perspective of the depth of regional regulation,deepen the"planning environmental impact assessment"from the perspective of the breadth of industrial distribution,and promote the"green-way model"from the perspective of ecological low carbon. 展开更多
关键词 New era Regional coordinated development strategy Ecological environment protection Planning environmental impact assessment Joint prevention and control
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Strategic thinking on improving the environmental competitiveness of Chinese enterprises 被引量:1
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作者 Ni Wufan 《Ecological Economy》 2006年第4期433-441,共9页
Environmental competitiveness, price competitiveness and non-price competitiveness make up the undivided vital part of product's competitiveness. Environmental competitiveness can not only help improve the enterprise... Environmental competitiveness, price competitiveness and non-price competitiveness make up the undivided vital part of product's competitiveness. Environmental competitiveness can not only help improve the enterprise's key competitiveness directly, but also strengthen it indirectly by improving the products' price competitiveness and non-price competitiveness effectively. Instead of being confined to the product itself, there are several element's that can determine and influence the product's environmental competitiveness, including the manufacturing process, the management of enterprise&the life circle of the products, etc. Measuring these elements by setting “environmental suitable degree ”, and building up the echelon model to evaluate the environmental competitiveness can help us see about the standard of the enterprises' environmental competitiveness. Though many of the national enterprises have price competitiveness to some extend, restricted by all kinds of elements like systems, techniques, policy, the enterprises are weak in environmental competitiveness. Beginning with systems redesign, carrying out the sustainable development, strengthening inner enterprises management, making more efforts on technique innovation, and widely publicizing and teaching the ecological concept, Chinese national enterprises can improve their environmental competitiveness and improve their key competitiveness. 展开更多
关键词 environment Enterprises' competitiveness environmental competitiveness strategy Ecologgcal economy
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Defining a mountain landscape characterized by grazing using actor perception, governmental strategy, and environmental monitoring data
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作者 Wiebke NEUMANN Camilla SANDSTROM +1 位作者 Lina HOLMGREN Goran ERICSSON 《Journal of Mountain Science》 SCIE CSCD 2019年第7期1691-1701,共11页
In multi-functional mountainous landscapes worldwide,conservation of natural values is a major task.Here,pro-active policies can be a way forward.National Environmental Quality Objectives(EQO)to solve environmental pr... In multi-functional mountainous landscapes worldwide,conservation of natural values is a major task.Here,pro-active policies can be a way forward.National Environmental Quality Objectives(EQO)to solve environmental problems for future generations,however,often wrestle with being too visionary and lacking specificity,which complicates their implementation.The EQO“A Magnificent Mountain Landscape”that has been adopted by the Swedish Parliament in 1999 to preserve the pristine mountain environment in Sweden,experiences all these flaws.To aid its implementation,we studied the conditions and processes needed to define,to evaluate,and to preserve its goals across the Swedish mountain chain,using one of its milestone targets(a landscape characterized by grazing)as a study system.Applying qualitative and quantitative methods,we analyzed three types of data:1)referral responses to the governmental strategy document,2)interviews with relevant actors,and 3)environmental monitoring data(reindeer position data).Nationally,our results suggest a need for geographical differentiation to match regional/local conditions.Regionally,difference in both perception and definition of the milestone target among the actors hinders the formulation,monitoring,and evaluation of a common goal.Next to a culture-nature divide,we found that a“within as a user”and“from the outside as an observer”perspective influenced suggested definitions.Moreover,we found a need for better defining whether the goal is maintaining current conditions or restoring previous ones.Our result supports the use of animal position data as a decision support tool to monitor and to aid evaluation of the target.Given the number of actors involved and conflicts of interests present,we suggest the application of a structured decision process to accomplish agreements on a common goal.Here,environmental monitoring data can aid a“landscape assessment step”as a natural part in the decision process to target landscape management actions resourcefully and effectively. 展开更多
关键词 Milestone target Structured decision process REINDEER HERDING HERBIVORY environmental Conservation strategy Sweden
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Lecturers’Efforts in Building Rapport in the English-Medium Instruction(EMI)Context:Focus on the Use of Communication Strategies
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作者 Shiyan YU Jagdish KAUR 《Chinese Journal of Applied Linguistics》 2024年第3期498-513,526,共17页
Past studies reveal the prevalence of anxiety,coupled with low motivation and disengagement among students in English-medium instruction(EMI)programs.Given the detrimental impact these negative emotions can have on le... Past studies reveal the prevalence of anxiety,coupled with low motivation and disengagement among students in English-medium instruction(EMI)programs.Given the detrimental impact these negative emotions can have on learning outcomes,it is imperative that teachers establish positive emotional rapport with their students.This study explores how experienced and highly rated EMI lecturers at a Chinese university’s overseas campus use communication strategies to build rapport with their students during interactive academic activities.It identifies the strategies used by these lecturers and examines how the strategies facilitate the teaching-learning process.The data,consisting of 10 hours of tutorials and 10 hours of supervisor-student supervision meetings,is analyzed using an adapted Conversation Analysis(CA)approach.The analysis reveals three types of communication strategies(CSs)frequently used by lecturers:back-channeling,codeswitching,and co-creation of messages.By employing these strategies,the lecturers established a strong rapport with the students,which created an encouraging and supportive learning environment.Consequently,this positive atmosphere facilitated students’learning of content knowledge through English.The findings of this study have implications for the training of lecturers who encounter difficulties in establishing rapport with multilingual students in the EMI setting. 展开更多
关键词 communication strategies English-medium instruction(EMI) rapport-building lecturer-student interaction supportive learning environment
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Comparison of environmental responding strategies between Ulva prolifera and Sargassum horneri:an in-situ study during the co-occurrence of green tides and golden tides in the Yellow Sea,China in 2017
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作者 Xinyu ZHAO Yi ZHONG +6 位作者 Huanxin ZHANG Tongfei QU Chengzong HOU Chen GUAN Feng LIU Xuexi TANG Ying WANG 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2021年第6期2252-2266,共15页
Large-scale green tides in the Yellow Sea occurred for 13 consecutive years since 2007.The unusual co-occurrence of green tides and golden tides occurred in the Yellow Sea in 2017.The causative species are Ulva prolif... Large-scale green tides in the Yellow Sea occurred for 13 consecutive years since 2007.The unusual co-occurrence of green tides and golden tides occurred in the Yellow Sea in 2017.The causative species are Ulva prolifera and/or Sargassum horneri.Previous studies on physiological response characteristics of U.prolifera and S.horneri are done in the laboratory mainly,and there is no in-situ comparative study in this regard.In this study,the in-situ physiological response characteristics of both species were measured.The results indicated that cyclic electron flow and antioxidant system play more important roles in protecting U.prolifera,while non-photochemical quenching is more important for adapting to the environment in S.horneri.U.prolifera has a stronger ability to utilize nutrients to rapidly increase its biomass under a suitable condition compared to S.horneri. 展开更多
关键词 Ulva prolifera Sargassum horneri environmental response strategy in-situ study
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Corporate Risk Strategic Management and Probabilistic Analysis Related to Environmental Liabilities: A Case Study
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作者 Tiago Moura Hermann Flávio Fernandes do Nascimento William Odle 《Journal of Environmental Protection》 CAS 2022年第7期490-507,共18页
Environmental stewardship is one of the main indicators of corporate performance and reputation among investors today. However, historical operational practices and accidents have created significant environmental lia... Environmental stewardship is one of the main indicators of corporate performance and reputation among investors today. However, historical operational practices and accidents have created significant environmental liabilities in the industrial sector, and now require significant investments for appropriate management and resolution. A strategic approach is imperative to assure that company’s financial resources are effectively allocated, and shareholders’ interests are protected. In addition, these liabilities must be appropriately and continuously reported, which require the use of robust forecasting techniques such as Monte Carlo Simulation. The present study results demonstrate that under an optimized strategic approach, liability management costs may be reduced in approximately 50%. In addition, the financial forecast under the selected approach may support appropriate reporting of company’s liabilities. 展开更多
关键词 Business Risk Management strategy environmental Liability Monte Carlo Simulation environmental Accounting
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Strategies for Sustainable Environmental Management of Construction Activities in Ghana
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作者 Simon Ofori Ametepey Samuel Ansah William Gyadu-Asiedu 《Journal of Building Construction and Planning Research》 2020年第3期180-192,共13页
The Ghanaian construction industry continues to improve by the recent intensification of infrastructure development by government and the private sector. Nonetheless, this is happening with a strong focus on economic ... The Ghanaian construction industry continues to improve by the recent intensification of infrastructure development by government and the private sector. Nonetheless, this is happening with a strong focus on economic development to the detriment of the environment these activities affect. This paper focuses on identifying the strategies by which sustainable environmental management could be structured to mitigate the impact of construction activities in Ghana. A mixed-method research approach was adopted. Quantitative data were collected from 83 practitioners in the construction industry, while qualitative data were elicited from 18 Construction and Environmental Management practitioners. The mean scores indicated that all the 20 strategies for integrating environmental concerns into construction activities in Ghana were considered significant by the respondents. The empirical findings of the study indicate that for environmental concerns to be effectively integrated into construction activities in Ghana, a concerted effort will be required from the various actors within the construction industry. These include the role of clients in selecting environmentally conscious service providers, designers focusing on environmentally friendly construction materials and methods, reduce, recycling and reuse of waste materials, the commitment of government towards sustainable development, and well-structured educational campaigns to promote environmentally sustainable construction activities. 展开更多
关键词 Construction Industry environmental Management STRATEGIES Sustainable Construction Sustainable Development
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Environmental Renewal Strategy of Old Residential Areas:A Case Study of Luochengtou Spinning Machine Yard No.6 of Handan City
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作者 Suyan ZHANG Qinghong LI Shuangxi SHEN 《Meteorological and Environmental Research》 CAS 2022年第4期67-70,共4页
Nowadays,China’s urbanization has entered a new stage,paying more attention to the human settlement environment.The urban environment has been greatly improved,with a new look.However,the contradiction between the ol... Nowadays,China’s urbanization has entered a new stage,paying more attention to the human settlement environment.The urban environment has been greatly improved,with a new look.However,the contradiction between the old city and the new city has gradually become prominent.The old residential area is the basic composition of the old city.Some old residential areas are in disrepair for a long time,and the supporting facilities are imperfect.There are problems such as single style,chaotic layout,hidden quality hazards,etc.,which are difficult to meet the living standards of modern residents.To solve this problem,from the aspects of the levels involved in the renewal and reconstruction of old residential areas,it should repair the building quality,optimize the housing function and increase the residents’happiness.Based on reconstruction of old residential areas in Congtai District of Handan City,Luochengtou Spinning Machine Yard No.6 of Handan City is taken as the research object.Common strategies in the reconstruction of old residential areas are explored,and the existing problems are updated and transformed.The research could provide reference for renewal design of old residential areas. 展开更多
关键词 Old residential areas Living environment Renewal strategy
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Study on Environmental Health Strategy after Earthquake
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作者 YUE LIN Institute of Environmental Health Monitoring,Chinese Academy of Preventive Medicine,Beijing 100050,China 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1989年第4期331-334,共4页
The first task in prevention of diseases after an earthquake is to quickly provide an adequate source of safe drinking water.Otherwise,the incidence of infectious intestinal diseases in the disaster area residents wil... The first task in prevention of diseases after an earthquake is to quickly provide an adequate source of safe drinking water.Otherwise,the incidence of infectious intestinal diseases in the disaster area residents will increase rapidly.Additional health measures,such as disinfecting drinking water,protecting the water source,and treating disaster area residents,must be taken at the same time.The sensory test of meat is a useful index of meat decomposition levels.Corpse alkali is a kind of toxic chemical,and personal protective measures must be taken in handling corpses.In general,all of these measures are important not only for achieving the goal of“no severe epidemic after strong earthquake disaster”in the affected areas,but also for enriching knowledge of disaster medicine.1989 Academic Press.Inc. 展开更多
关键词 Study on environmental Health strategy after Earthquake
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Prevention and Control of Rural Environmental Pollution Based on Rural Revitalization Strategy
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作者 Qin HU Junying WEI 《Asian Agricultural Research》 2018年第8期37-39,共3页
In 2018,the rural revitalization strategy proposed by the No. 1 Document of the central government. Based on the current situation of rural environmental pollution in China,this paper explored the relationship between... In 2018,the rural revitalization strategy proposed by the No. 1 Document of the central government. Based on the current situation of rural environmental pollution in China,this paper explored the relationship between rural revitalization strategy and prevention and control of rural environmental pollution. On this basis,it analyzed the causes of serious rural environmental pollution in China,Finally,it came up with recommendations including establishing a sound rural environmental governance system,making diversified capital investment for nurturing " green farmers". 展开更多
关键词 农村 振兴战略 环境保护 环境污染
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Approach to estimating non-point pollutant load removal rates based on water environmental capacity: a case study in Shenzhen 被引量:1
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作者 刘梁 刘安 管运涛 《Journal of Southeast University(English Edition)》 EI CAS 2014年第2期143-149,共7页
An innovative approach based on water environmental capacity for non-point source NPS pollution removal rate estimation was discussed by using both univariate and multivariate data analysis.Taking Shenzhen city as the... An innovative approach based on water environmental capacity for non-point source NPS pollution removal rate estimation was discussed by using both univariate and multivariate data analysis.Taking Shenzhen city as the study case a 67% to 74% NPS pollutant load removal rate can lead to meeting the chemical oxygen demand COD pollution control target for most watersheds.In contrast it is hardly to achieve the ammonia nitrogen NH4-N total phosphorus TP and biological oxygen demand BOD5 pollution control target by simply removing NPS pollutants. This highlights that the pollution control strategies should be taken according to different pollutant species and sources in different watersheds rather than one-size-fits-all . 展开更多
关键词 environmental capacity estimation non-point source (NPS) pollution removal rate control strategy
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Environmental Risks in China and Their Countermeasures
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作者 夏光 《China Economist》 2015年第4期4-21,共18页
The 13th Five-year Plan period (2016-2020) is a crucial period for environmental protection in China and represents the last chance for the achievement of the environmental objective under the goal of building a wel... The 13th Five-year Plan period (2016-2020) is a crucial period for environmental protection in China and represents the last chance for the achievement of the environmental objective under the goal of building a well-off society in an all-round manner. During this period of time, China' s environment is confronted with the following major risks: risks of environmental quality, human health, ecological security, balanced regional development and international influence. The overall conclusion is that the tendencies of changing eco-environment are complex, problems remain outstanding, and some risks have abated while others have intensified with possible improvements in the future. Future prospects mainly depend on the intensity of actions taken. It is suggested that environmental protection strategy of"overall optimization" be adopted for the 13th Five-year Plan period, i.e. environmental protection requirements should be incorporated into political, economic, social and cultural spheres, so that these areas with major influence on the natural environment will improve and transform towards an environmentally friendly direction and ultimately help achieve the objective of improving eco-environment and people's welfare. In order to fundamentally reverse mainstream understanding on environmental protection, it is suggested to define the "contradiction between environmental pressures arising from growing economic development and China ' s limited and fragile environmental capacity" as a major contradiction of Chinese society. 展开更多
关键词 China ecological environment RISK environmental protection strategy overall optimization major contradiction of Chinese society
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