Ecological environmental quality evaluation and driving factor analysis of the Lijiang River Basin,based on Google Earth Engine

For regional ecological management,it is important to evaluate the quality of ecosystems and analyze the underlying causes of ecological changes.Using the Google Earth Engine(GEE)platform,the remote sensing ecological index(RSEI)was calculated for the Lijiang River Basin in Guangxi Zhuang Autonomous Region for 1991,2001,2011,and 2021.Spatial autocorrelation analysis was employed to investigate spatiotemporal variations in the ecological environmental quality of the Lijiang River Basin.Furthermore,geographic detectors were used to quantitatively analyze influencing factors and their interaction effects on ecological environmental quality.The results verified that:1)From 1991 to 2021,the ecological environmental quality of the Lijiang River Basin demonstrated significant improvement.The area with good and excellent ecological environmental quality in proportion increased by 19.69%(3406.57 km^(2)),while the area with fair and poor ecological environmental quality in proportion decreased by 10.76%(1860.36 km^(2)).2)Spatially,the ecological environmental quality of the Lijiang River Basin exhibited a pattern of low quality in the central region and high quality in the periphery.Specifically,poor ecological environmental quality characterized the Guilin urban area,Pingle County,and Lingchuan County.3)From 1991 to 2021,a significant positive spatial correlation was observed in ecological environmental quality of the Lijiang River Basin.Areas with high-high agglomeration were predominantly forests and grasslands,indicating good ecological environmental quality,whereas areas with low-low agglomeration were dominated by cultivated land and construction land,indicating poor ecological environmental quality.4)Annual average precipitation and temperature exerted the most significant influence on the ecological environmental quality of the basin,and their interactions with other factors had the great influence.This study aimed to enhance understanding of the evolution of the ecological environment in the Lijiang River Basin of Guangxi Zhuang Autonomous Region and provide scientific guidance for decision-making and management related to ecology in the region.

Study on Transformation of Ideas of Environmental Protection Administration and Construction of Ecological Civilization in China

The transformation process of ideas of environmental protection administration in China was introduced firstly,and then the connotation and construction of ecological civilization were analyzed.

A climatic environmental performance assessment method for ecological city construction:Application to Beijing Yanqi Lake

In contrast to the input perspective for evaluating planning metrics, this research takes the climatic environmental output effects as the starting point for assessing ecological city construction. Based on approaches such as observation data analysis, meteorological model simulation, and remote sensing, a set of climatic environmental performance assessment methods is developed and established. These methods mainly focus on surface ventilation assessment and urban thermal environment assessment. With the Yanqi Lake ecological development demonstration area located in Huairou district, Beijing as an example, the assessment of the local climatic environment before and after the construction are conducted, and relevant policy suggestions for urban planning and construction are presented. The results show that after development, the ventilation capacity will decrease overall and the ventilation potential index will decrease from 0.53 to 0.44. While this is not a large reduction, and is still at a favorable level, the ventilation potential in some local areas will markedly decrease. Furthermore, the thermal environment will become poorer to some extent; the urban heat island(UHI) area and intensity will increase compared with the current situation;continuous heat islands may occur in local areas; the UHI potential index of the core area will rise from 0.0878 to 0.1217(still a favorable level).Therefore, urban surfaces should be carefully developed and arranged during planning. It is suggested that the negative impacts of large areas of urban construction on the local climatic environment in the Yanqi Lake could be mitigated by 1) strengthening the airflow by introducing fresh,cold, northwesterly air via constructed ventilation corridors, 2) increasing the number of ecological cold sources, particularly for water bodies and green belts to prevent the UHI in the southern region of Yanqi Lake from becoming linked with each other, and 3) considering a pre-program before sub-domain and building planning to obtain optimum building locations. Different construction standards should be developed for different ventilation potential and UHI intensity levels. For strong heat island areas, land areas should be reserved to serve as cold sources.

Exploration of Ideological and Political Materials for the Course of Inorganic and Analytical Chemistry for Environmental and Ecological Engineering Major

Integrating ideological and political theories teaching into the whole process of classroom teaching construction is a new requirement for implementing the fundamental task of cultivating people by virtue and playing the role of collaborative education.In order to realize the seamless integration of inorganic and analytical chemistry courses and ideological and political education,this paper summarizes the current situation of ideological and political research on inorganic and analytical chemistry courses in three major databases in China(VIP,CNKI and Wanfang),and sorts out the knowledge points,ideological and political elements and educational goals according to the content of the course chapters,to provide a basic guarantee for the ideological and political education construction of the course.

Construction Method of Ideological and Political Theories Teaching in the Course of Environmental Microbiology for Environmental and Ecological Engineering Major

Environmental Microbiology is a professional basic course in the curriculum system of Environmental and Ecological Engineering major,which follows the requirements of ideological and political theories teaching in the course in higher education,and should be implemented in every course.Therefore,the construction of ideological and political theories teaching in the course should be an important task in the course construction of Environmental Microbiology.In view of the curriculum characteristics of Environmental Microbiology,such as multi-disciplinary feature,wide coverage and rapid development,it is an effective method for the construction of ideological and political theories teaching in the course of Environmental Microbiology by fully tapping the ideological and political elements of the curriculum,such as patriotism,scientific spirit and practical innovation,and integrating the ideological and political theories teaching in the course into the whole curriculum design and classroom teaching construction.

Preliminary Investigation on Tracking Evaluation of Planning Environmental Impact Assessment in Ecological Civilization Construction of Wuhan City

On the basis of experimental works of planning environmental impact assessment, works of planning environmental impact assessment such as each of the city＇s special planning and development zone planning were comprehensively promoted in Wuhan City, which effectively promoted the adjustment of Wuhan industrial structure, the rational layout of functions and the efficient utilization of resources, and laid a solid foundation for Wuhan City to be the supporting point for the rise of central China. Here, the work carried out in Wuhan was reviewed, combined with the new requirements of the current ecological civilization construction in Wuhan City, and the framework, the key technical points and the important focuses of the carrying out of the tracking evaluation of planning environmental impact assessment were proposed.

Environmental availability and ecological risk assessment of heavy metals in zinc leaching residue

Four different methods,namely mineralogical analysis,three-stage BCR sequential extraction procedure,dynamic leaching test and Hakanson Potential Ecological Risk Index Method were used to access the environmental activity and potential ecological risks of heavy metals in zinc leaching residue.The results demonstrate that the environmental activity of heavy metals declines in the following order：CdZnCuAsPb.Potential ecological risk indices for single heavy metal are CdZnCuAsPb.Cd has serious potential ecological risk to the ecological environment and contributes most to the potential toxicity response indices for various heavy metals in the residue.

Substantive Characteristics of Water and Soil Conservation and Ecological Civilization Construction in China

Water and soil conservation is an important part of eco-civilization con-struction. It is a major part of eco-construction and lifeline of social and economy development. Therefore, water and soil conservation is of great significance in maintaining eco-safety. The research concluded status quo and characters of water and soil losses in China and analyzed water and soil conservation and construction of eco-civilization from the perspectives of water and soil conservation and con-struction of eco-civilization.

Ecological Greenway Construction in Shunde District of Foshan City,China

As the greenway construction grows popular,the concept and type of greenway is clarified in this study,research progresses and prospects of greenway planning are summarized.Greenway planning of Shunde District is taken for an example to elaborate properties,types,origination and tasks of greenway,moreover,construction background,ecological,human-centered and characteristic design principles were analyzed,especially the design of its buffer zone,corridor system,width of crawl lane,node system,identification system and service area.Greenway construction of Shunde District is to build a greenway network of multiple types and functions in 3 levels:region,city and community;a recreational landscaping system with regional greenland as the background,greennet and greenway as the framework,to promote a new "ecological,green and low-carbon" lifestyle,and create the new image of Shunde as "a livable riverfront region full of sunshine".

Influence of Urban Development and Construction on Ecological Water Conservancy Landscapes and Countermeasure Analysis——A Case Study of Ecological Water Conservancy Landscapes in Nanchang City,Jiangxi Province of China

Through analyzing influence of urban development and construction on ecological water conservancy landscapes,common ecological problems of existing water conservancy landscapes were explored.Causes responsible for these problems were summarized as poor knowledge about ecology,unclear objective of construction,water conservancy projects violating the principle of conserving and restoring ecological conditions,and degraded biodiversity of water environment.It was stressed that ecological construction of water conservancy landscapes should break traditional water conservancy concepts,adopt ecological treatment and build ecological landscapes;geomorphic,hydrological and hydraulic of original river systems should be maintained as much as possible;sewage not discharged to natural water directly;water circulation enhanced to promote self-purification capacity of water;necessary purification measures adopted for rivers and lakes.On the basis of above strategies,construction of ecological water conservancy landscapes in Nanchang City was taken for example to analyze problems in the previous construction and present achievements,then principles to be followed in the future construction and protection of ecological water conservancy landscapes in Nanchang City were proposed.

Evaluation on Ecological Urban Construction of Suzhou City in China from Outward Appearance to Inner Essence

After the discussion of accomplishments of ecological urban construction in Suzhou City, the current ecological urban construction in Suzhou has been compared with the national standard for ecological urban construction. According to the actual situation of Suzhou urban construction, the health evaluation index system and standards for urban eco-system have been established based on natural, economic and social sub-system. By using mean square deviation, indexes' weights have been identified. After the quantitative research on the health condition of urban eco-system in Suzhou City from 2004 to 2008, it has found key problems existing in its ecological urban construction. The results show that Suzhou urban eco-system develops well in general, but the three sub-systems are coordinated with each other moderately, and natural sub-system suffers severe pressure.

Study on the Ecological Construction in the Process of Urbanization——A Case Study of Ecological Protection Green Belt Design for Shanghai A20 Out Ring (Changning Section)

With the further development of urbanization,the conflicts between human beings and the nature has been gradually aggravated;it is urgent to establish balanced natural ecology in the process of urbanization,and harmony between human beings and environment.This study took the ecological landscape project of Shanghai A20 Out Ring (Changning Section) for an example to research and rethink about the ecological construction in the process of urbanization.

Approaches of Landscape Design for the Construction of Low-carbon Ecological City

The prominent role and remarkable achievements of landscape design in the construction of low-carbon ecological city were analyzed in the context of global environmental issues. This study stressed that landscape architecture, as a comprehensive discipline handling human-land relationship, would play a significant role in the construction of low-carbon ecological city, and finally proposed a variety of approaches of landscape design for constructing low-carbon ecological city.

The Study on Protection and Construction Mode of Urban Ecologically Sensitive Areas

The paper had analyzed the necessity and feasibility for the protection and utilization of urban ecologically sensitive areas, proposed planning urban ecologically sensitive areas reasonably and combining ecological protection with development construction. Guiding the healthy and ordered development of urban spaces was the key part and important approach to realize ecological cities. The guiding thought for development construction of ecological cities had been discussed, which was conducting laddered development according to the location and coverage of urban ecologically sensitive areas and protection grades of these sensitive areas. Then, it had proposed four kinds of protection and construction modes, which were tourism leisure green lands, relevant expositions, industrial areas and new city groups, and which had been analyzed by combining with successful cases, so as to provide feasible win-win development strategies of ecology and economy for the planning of urban ecologically sensitive areas in the future.

Study on the Ecological Planning of Urban Preparatory Construction Land

Taking Shawen Ecological Tech-Industrial Park in Guiyang City for example,the ecological planning methods and procedures of urban preparatory construction land were studied.It was found that the urban preparatory construction land could be classified into four categories through analyzing its ecological sensitivity,i.e.the most sensitive area,secondarily sensitive area,less sensitive area and non-sensitive area.All types of construction were prohibited in the most sensitive area which provided 'negative' results for the future development of preparatory construction land.On this basis,certain land use types were selected to carry out suitability analysis of land use which could provide 'positive' results for the future development of preparatory construction land,i.e.guide the direction and layout of land use development.To improve the studies on ecological planning,the above-mentioned analysis results were combined to construct the ecological network,so as to form an ecological planning method combining both horizontal and vertical ecological analysis.

Construction of Ecological Tourist Destinations for Health Preservation

The approaches of constructing ecological tourist destinations for health preservation are introduced from 8 aspects,that is,resources,environment,cultures,services,facilities,management,marketing and education.Meanwhile,this study states that the key of building such tourist destinations is the health-preservation environment system,including ecological environment,cultural environment and social environment.

Research on Ecological Livable Urban Construction in Small and Medium Cities of China——A Case Study of Huaihua City

The paper has analyzed the concept of ecological livable city,considered that small and medium cities as the major pattern of China's urbanization are more likely to become ecological livable cities compared with large cities.Based on the actual situation of Huaihua City,it has pointed out its advantages in transport,ecology,foundation and national characteristic,and analyzed existing problems in the construction of ecological livable city from the perspective of urban eco-environment.It considers that its urban ecological planning is to be perfect,urban environment pollution is still serious and people's consciousness for environmental protection is to be improved.On this basis,relevant suggestions have been proposed for ecological livable urban construction in Huaihua City,emphasizing it should perfect urban ecological planning,enhance environmental pollution treatment,intensify environmental protection education,and improve people's consciousness for environmental protection.

A Study on the Relationships of Ecological Civilization Construction with Natural Conservation and Sustainable Resources Use

Ecological Civilization Construction and natural conservatiorl and sustain- able resources use are three aspects of same object proposed from various angles of theory and practice. The paper intends to simply deal with some problems of this aspect and to propose corresponding suggestions for related departments.

Embodiment of "Ecological,Cultural,Landscape,Vigorous" Campus—A Case Study of the Planning of Environmental greening in New Campus of Laiwu Vocational and Technical College

The general situation of new campus of Laiwu Vocational and Technical College was introduced.The guiding ideology was that with the purpose of serving faculties and students as the purpose,the designing will be fully combined with excellent natural environment and campus technology and culture,and with ecological landscape as the major and sustainable development as the aim,striving to highlight the theme and landscape,a comfortable,vigorous,innovative and beautiful outdoor spatial environment would be created.In accordance with the planning principle of "people-orientation,ecology,sustainable development,embodying the characteristics of landscapes,overall planning and varied practices",based on the planning thought of "procession of whole and part,of technology and art,of buildings and environment and of landscaping methods",the overall planning and regional division of constructing "ecological,cultural,landscape,vigorous" campus was proposed,that is,the campus environment would be divided into six functional zones(the entrance door zone,footsteps zone,teaching activities zone,life services zone,athletic activities zone and ecological recreation zone) and ten scenic areas(gate landscape area,scientific and technological culture corridor,ecological recreation area,culture exhibition area,Xiushui Lake scenic area,knowledge park,living landscape area,art exhibition area,mountainous scenic area and sports activities area),and meanwhile landscaping plants were planned.

The Basic Indexes and Practices of Regional Ecological Agricultural Construction in Dabie Mountains——A Case Study of Huanggang,Hubei

Taking Huanggang city as an example, the requirements of basic indexes for the regional ecological agricultural construction in Dabie Mountains were ana- lyzed and the measures that must be taken in implementing the in the Dabie Mountains were proposed.