Changes of coastline and tidal flat and its implication for ecological protection under human activities: Take China’s Bohai Bay as an example

The change processes and trends of shoreline and tidal flat forced by human activities are essential issues for the sustainability of coastal area,which is also of great significance for understanding coastal ecological environment changes and even global changes.Based on field measurements,combined with Linear Regression(LR)model and Inverse Distance Weighing(IDW)method,this paper presents detailed analysis on the change history and trend of the shoreline and tidal flat in Bohai Bay.The shoreline faces a high erosion chance under the action of natural factors,while the tidal flat faces a different erosion and deposition patterns in Bohai Bay due to the impact of human activities.The implication of change rule for ecological protection and recovery is also discussed.Measures should be taken to protect the coastal ecological environment.The models used in this paper show a high correlation coefficient between observed and modeling data,which means that this method can be used to predict the changing trend of shoreline and tidal flat.The research results of present study can provide scientific supports for future coastal protection and management.

Influence of ecological function protection zone on the water conservation in Gansu-Qinghai Contiguous Region of the upper Yellow River

The implementation of Ecological Function Protection Zone(EFPZ)policy is significant for the ecological restoration and conservation of soil and water in the territory space.This manuscript analyzed and quantified the impact of EFPZ on the regional water conservation function,based on land use data from 2005,2008,2010,2015 and 2020,by conducting a counterfactual simulation along with the GeoSOS-FLUS model and the InVEST model.The results demonstrate that the delineation of EFPZ can significantly influence the water conservation.(1)From 2010 to 2020,as the EFPZ was implemented,the water conservation in the study area was increasing year by year,with a growth rate of 0.03×10^(8) m^(3)∙a^(-1).On the other hand,the simulated water conservation capacity without the implementation of EFPZ decreased year by year,with a decrease rate of 0.01×10^(8) m^(3)∙a^(-1).(2)The EFPZ accounts for only 23%of the total area,but the contribution rate of water conservation reaches 80%.The actual values of water conservation and average water yield per unit pixel in the EFPZ show an increasing trend both internally and externally,while the counterfactual simulation values exhibit a decreasing trend.(3)The water conservation is much higher within the EFPZ than without EFPZ.The implementation of EFPZ has a significant effect on the improvement of the water conservation capacity in Maqu EFPZ and Yellow River Source EFPZ.The protection effectiveness should be enhanced in Qilian Mountain EFPZ and afforestation activities need to be carefully considered in Loess Plateau EFPZ.

Considerations on Compiling the Part on Nature and Ecology Protection of China's Environmental Code

The legal protection of nature has progressed from a separated to integrated protection of resources and environment.Looking at nature from a dialectical and unified perspective,sustainable development requires such integrated protection of the ecosystem for public sharing of natural wealth,convergence of governance of environment and resources,and promotion of ecosystem-based integrated management of environment and resources.China's Nature and Ecology Protection Law is gradually moving towards comprehensive governance for protection of the overall ecosystem.We must work harder to make such a comprehensive governance possible.Thus,China's environmental code(Code)must be moderately developed,including choosing the right title,the scope of work,the objectives and the compiling mode,and establishing a multi-level and diverse integrated system,and addressing five major relationships.

Symposium on Environmental Protection and Ecology in Developing Countries-Call for Action

The participants in the Symposium on Environmental Protection and Ecology in Develo-ping Countries, cosponsored by the Chinese Academy of Sciences (CAS) and the Federation of Asian Scientific Academies & Societies (FASAS), held in Beijing, China, on 1-4 November 1989.

Briefing of Symposium on Environmental Protection and Ecology in Developing Countries

The symposium on Environmental Protection and Ecology in Developing Countries, orga-nized and financed by Chinese Academy of Sciences (CAS) and Federation of Asian Scientific Academics and Societies (FASTS) and supported by American Association for the Advance-ment of Science (AAAS) and the UNEP Regional representative has held on November 2-4 in Beijing, China.

Problems and Countermeasures for the Protection of Agricultural Heritage in China

With the rapid development of modern agriculture,China has increasingly attached importance to the protection and development of agricultural cultural heritage,but it has encountered severe challenges in reality.By analyzing the connotation and current situation of agricultural cultural heritage,to address the issues faced by China,such as imbalanced theoretical and practical development,difficulty in grasping the boundaries of protection and development,inadequate research and management mechanisms,large funding gaps,lack of talent,and insufficient international influence,targeted solutions are proposed based on relevant information and literature.This aims to strengthen the protection,activation,and inheritance of agricultural cultural heritage.

Development Trend of Energy and Key Points of Ecological Environment Protection in China's "14^(th) Five-Year Plan" Period

From the changes of total primary energy consumption and primary energy consumption structure,installed capacity and power generation of secondary energy(electricity),etc.,the development characteristics of China's energy structure in the"13^(th) Five-Year Plan"period was comprehensively studied.Combined with the complexity of the international situation,the diversification of the domestic energy system,the intelligence of the energy industry,etc.,the situation and challenges faced by China's energy development were deeply discussed in the four aspects of energy security,energy low-carbon transformation,energy system efficiency,and energy technology level.From the angle of ecological environment protection,the development of energy in the"14^(th) Five-Year Plan"period in China was analyzed,and some policies and measures were put forward.

Development and Utilization of Saline Lake Resources and Protection of Ecological Environment in Qaidam Basin in Qinghai Province

Qaidam basin is an important part of National Key Development Area–Lanzhou-Xining Area,is a key region of resource development in Western Development,is a National Circular Economy Pilot Zone.The focus of

Study on Mechanism and Control Effect of Highway Slope Ecological Protection

At present,with the rapid development of social economy,people's awareness of environmental protection continues to increase,and environmental construction and environmental protection work are put on the agenda.Highway slope greening protection is an important means to achieve social sustainable development.Developed countries carried out research earlier in this area,and China's research in this area started later.In engineering construction,ecological protection is to realize slope reinforcement and slope protection depending on the water storage and soil fixation effects of vegetation.Its slope protection can be summarized as the mechanical effect of root system and the hydrological effect of vegetation.As a basic form of slope greening protection,it is necessary for us to understand the mechanism of ecological protection and to enhance the design of ecological protection accordingly.Based on this,the article analyzed the development of slope greening protection technology and ecological protection mechanism from different angles,so as to establish a theoretical framework for future research.

Thoughts and Practice of Ecological Protection and Restoration of Mountains, Rivers, Forests, Farmlands, Lakes and Grasslands

The report of the 19th National Congress of the Communist Party of China stated that it was necessary to establish and practice the concept that lucid waters and lush mountains are invaluable assets,treat the ecological environment as life,and coordinate the management of mountains,rivers,forests,farmlands,lakes and grasslands.In recent years,China has organized a series of pilot projects for the ecological protection and restoration of mountains,rivers,forests,farmlands,lakes and grasslands,breaking the boundary between administrative divisions,departmental management and ecological elements,and implementing conservation and restoration oriented towards the improvement of ecosystem services,so as to solve the problem of the lack of overall planning for ecological protection and restoration projects and the separated management of ecological elements.This study systematically elaborated the theoretical basis and connotation characteristics of ecological protection and restoration of mountains,rivers,forests,farmlands,lakes and grasslands.It proposed the implementation path of ecological protection and restoration project of mountains,rivers,forests,farmlands,lakes and grasslands by taking the water source conservation area of Beijing-Tianjin-Hebei as a case,so as to provide reference for the implementation and decision-making management of ecological protection and restoration projects in various regions.

Ecological and Environmental Protection Requirements in China s Regional Coordinated Development Strategy in the New Era

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.

Evolution logic complementary needs and reform path of China’s marine ecological protection system

The issue of marine ecology is an institutional one.China’s marine ecological protection system has gone through a process of development from scratch to existence and from less to more.However,there are still many problems to be solved,such as whether a variety of complex systems can form a joint force of governance,and whether the rear system failures,deficiencies,and conflicts.Therefore,this paper reviews the evolution logic of China’s marine ecological protection system,explores the complementary space of the existing system from the perspective of institutional complementarity,and analyzes the path of institutional reform of supplement,amendment,and coordination,to promote the effective transition of marine ecological protection system emphasizing quality over quantity.The evolution of China’s marine ecological protection system can be divided into three stages:initial establishment,steady progression,and gradual transformation,showing a trend characterized by a changing governance mode from land-sea division to land-sea integration,a changing supervision mode from government only to multi-institution coordination,a changing safeguard mode from standard norms to the legal system.The internal motivation of promoting the evolution of the marine ecological protection system is the link age between the long-overdue institutional derived demand and supply,and between institutional cost constraints and institutional income drivers.Marine ecological protection is a complex and systematic project across regions and departments,and the link age between different ecological protection systems is crucial.Based on the theory of institutional complementarity,this study finds that China’s marine ecological protection system has great complementarity needs in three aspects:protection subject,protection means,and protection process.Among them,the problem of a single unitary protection subject is mainly caused by the lack of system,the low efficiency of protection means is mainly affected by the lack of system adaptability,and the separation of protection process mainly reflects the contradiction of system incongruity and mismatch.Based on this,the supplement of China’s marine ecological protection system should focus on the government’s responsibilities and the cultivation of multiple subjects.The revision of the system should focus on the further improvement of non-governmental mechanisms such as market incentives and information disclosure.The coordination of the system should be based on the whole process from pre regulation preparations to post-regulation review,in order to promote the effective connection and cooperation of policy tools.

Study on Key Problems of a New Environmental Dredging Based on Ecological Protection and Subsequent Ecological Restoration

[Objective] The research aimed to study key problems of a new environmental dredging based on ecological protection and subsequent ecological restoration. [Method] People paid more attention to sediment pollutant removal in environmental dredging, without considering coming aquatic eco-restoration work after dredging. Factor affecting aquatic ecosystem existence and growth was screened, and ecological dredging manner was put forward. [Result] On the basis of analyzing dredging objective, effect and influence, started from ecological protection and subsequent ecological restoration, water depth and substrate were screened as priority control factors of the environmental sediment dredging. New manner of combining sediment dredging to reshape underwater terrain was put forward. [Conclusion] The research provided solution for water depth and substrate demands of the subsequent ecological restoration.

Study on the Delineation of Ecological Protection Red Line in Ecological Fragile Region of the West

Ecological protection red line is one of the main contents in system construction of ecological civilization in China, and also reflects the trend and the will of the national eco-environment protection system reform. In this paper, taking ecological fragile area of the west as the research object, and using literature analysis, comparative analysis and other methods, the characteristics in ecological fragile area of the west are compre-hensively elaborated, and the relationship between ecological vulnerability and ecological protection red line is clarified, and the delineation theory and methods of ecological protection red line are analyzed, such as ecological suitability analysis, regional ecological security pattern and DPSIR model. Finally, key issues of ecological protection red line delineation in ecological fragile zone of the west are proposed.

Ecological Protection Design Strategy for Mountain Tourism Highway Slopes

Slope ecological protection technology is a form of slope protection with high ornamental and good economic value.At present,it is widely used in highways and urban streets’slope protection works.However,its use is not very common in mountain tourism highways;hence,it is necessary to implement strategies for mountain tourism highway slope ecological protection design to promote excellent development.

Summary of Slope Ecological Protection Technology

It is an important issue for sustainable economic development to give consideration to both project development and environmental protection.At present,we must confront and seriously deal with the problems of rational utilization of resources,protection of the environment and beautification of the environment in engineering construction.This paper describes a variety of slope plant protection technology,which can not only play a good role in slope protection,but also improve the engineering environment and reflect the beauty of natural environment,so as to provide reference for slope ecological protection.

Rural Domestic Sewage Treatment Model: Case Study Based on Dongying Section of the Yellow River Basin

The 20th National Congress of the Communist Party of China proposed to promote the improvement of urban and rural living environment and build livable and workable villages and beautiful villages. The development and challenges of rural domestic sewage treatment coexist. Based on the field investigation of 15 administrative villages in 3 districts and counties of Dongying City, there is a big gap between the development status of rural domestic sewage treatment and expectations. Investigate rural domestic sewage treatment cases in-depth, and condense four modes of primitive, developmental, mature and advanced in a variety of different rural domestic sewage treatment models for discussion, among which, the village sewage treatment work under the mature mode has achieved remarkable results, and is at the forefront of the current rural domestic sewage treatment. Through the multi-case analysis method, the practical dilemma of sewage treatment in different models of villages is summarized, and the feasible improvement path is explored, which contributes to the ecological protection and high-quality development of Dongying and the Yellow River Basin.

“3S”技术在秦岭生态环境保护领域的应用(英文)

On the basis of briefly introduction of the status of eco-environmental protection work in Qinling,remote sensing,geographic information systems,global positioning system (short for '3S' technology) in the construction of eco-environmental protection information in Qinling,especially in the application of eco-environmental investigation,eco-environmental monitoring,environmental quality evaluation,were described in this study.Meanwhile,the existing problems and countermeasures for the application '3S' technology in the eco-environmental protection were also summarized.

广西生态系统服务价值空间分布与生态保护对策(英文)

90 counties (cities) in Guangxi Province being taken as the tested region,the ecosystem service value of those counties (cities) was measured with the data of land-using in 2005 by means of the Table of Terrestrial Ecosystem Services Value in China.The result indicated that the value of the ecosystem services per unit was divided into 3 categories:the first category with high ecosystem services value,the second category with medium ecosystem services value and the third category with low ecosystem services value.The region of the first category was mainly distributed in the mountain area of northern,northwestern,eastern and northeast part of Guangxi;the second category,in the hilly area of southern part and the mountain area in the southwestern part of Guangxi and the third category,in the basin area of central Guangxi,the karst area of western and northwestern Guangxi Province.