Abstract Solid phase extraction is a commonly used sample analysis method in China, which is widely used in environmental chemical analysis in China, such as air chemical analysis, water quality, poison detection, etc. The application of this sample analysis technique provides accurate and sensitive reference data to solve and improve the important work benefiting the country and the people. The significance, application and development direction of solid-phase extraction technology are analyzed in detail.

Abstract The World Health Organization introduced planetary health concept. That is, the planet's health is inextricably linked to human health. The recent spate of forest fires is a warning to take action against climate warming. This study explores the relationship between forest fires and human health and summarizes health promotion's role in forest fires in Chongqing from the perspective of the Ottawa Charter.

Abstract With the acceleration of industrialization, air pollution has become a problem that can not be ignored in the process of urban development. Nitrogen oxides (NOX) are chemically active and hazardous, and play an important intermediary role in the formation of acid rain and other atmospheric complex pollution. for which a series of prevention and control measures have been implemented in Beijing, but due to the late development of NOX control technology in China, NOX pollution is still a focus issue, Therefore, this paper investigates the spatial and temporal distribution and concentration changes of NOX in Beijing. Firstly, based on the relevant concentration data of Beijing from 2014 to 2021, the limits for actual and policy concentrations of NOX, O3, CO and SO2 are compared, and then the spatial and temporal variation trends of NOX concentrations are described, and a grey prediction model is established by python software to estimate and predict the NOX concentrations in Beijing from 2022 to 2024. The results show that from 2014 to 2021, the air quality in Beijing will continue to improve and the NOX concentrations will continue to decrease, with a spatial distribution of "high in the south and low in the north and highest in the middle", and the differences between the north - south and suburban areas of NOX concentrations will be significantly reduced in 2021. The grey model forecast results show that the NOX concentration in Beijing will still decrease in the next three years, but the decrease is not significant. It is recommended to further improve the "winter disease and summer treatment" of air pollution in Beijing, continue to carry out in-depth regional joint prevention and control, and strengthen the collaborative pollutant reduction strategy

Abstract In order to compare the research status in the field of watershed protection between China and foreign countries, this paper uses the Web of Science database and CNKI database as the data source, and citespace analysis tools to display the statistical results of data in the form of knowledge maps from the aspects of the number of papers, keyword co-occurrence, The results show that: ① The research on river basin protection in various countries shows a trend of overall rise and intermittent fluctuation, and China has a feature of high volume of documents and low centrality; ② China's research mainly covers the Yangtze River Economic Belt, ecological compensation, land use, sustainable development, water resources, etc., while foreign research focuses on deforestation, eutrophication, protected areas, land use change, fisheries, etc. This paper summarizes the research hotspots and research methods of watershed protection in China and foreign countries.

Abstract The application of the digital technology to the cultural landscape can not only break the limitations of the traditional garden landscape, but also promote the digital construction of the cultural landscape, and then fully realize the integration of the digital and the cultural landscape construction.In addition, through digital means, we can bring a new interpretation of its associated cultural landscape, and further completely present the development context of history and culture.With the development of the current society, as well as the requirements of ecological civilization and information technology, we should give full play to the advantages of digitalization in cultural landscape and social value.In view of this, the following first explains the concept, role and status quo of cultural landscape digitalization, and then expounds the significance of digitalization application in cultural landscape application, and finally discusses the innovative development of cultural landscape digitalization.

Abstract Chinese President Xi Jinping announced that China will achieve a carbon peak by 2030 and carbon neutrality by 2060. In the past two years, China has successively published the work plan and roadmap for carbon peak and carbon neutrality and continued to push this target forward. This paper reviews the impact and challenges of carbon neutrality on China's macro economy.

Abstract With the advancement of urbanization in modern society, the construction and development of cities has had an inestimable negative impact on the basic function of the natural system, and the excessive concentration of resources has also brought unprecedented pressure to the urban infrastructure. In the traditional urban design, city and ecology is often split and separate, at the end of the 20th century, mainly Europe, the United States, western countries saw the ecological potential of urban infrastructure, began to explore the combination of New York development and nature protection planning and design method, ecological planning and construction related theory and practice conjugate ecological concept and coupling InVEST model arises at the historic moment. Ecological planning and construction are different from the previous theory of environmental protection. Ecological planning and construction recognize human needs for society and focus on the combination of ecological protection and development and artificial infrastructure.

Abstract The determination of groundwater-surface water interactions is an important process in the hydrological cycles and the worlds water balance. Research focused on groundwater-surface water interactions can be used to characterize the evolution of the wetland's water cycle, which plays an important role in the management of water resources. In addition, groundwater plays an important role in the functioning of wetlands. For example, in dry seasons, the groundwater aquifers replenish wetlands (P.Martinez-Santos et al., 2018).This process ensures the flow in the wetland and protects the ecological environment around it. The interaction of groundwater and surface water has become a popular topic of research because of its significance in a rational management and exploitation of the water resources. The exchange of groundwater and surface water is due to the difference between groundwater table and surface water elevation (Wmiter et al.,1998; Healy, 2012). Specifically, if the groundwater elevation is higher than the wetland elevation, the groundwater can discharge into the wetland. Limited research has been done on the connectivity of groundwater and surface water in the tidal wetland of Kooragang Island, Hunter River Estuary, Newcastle, Australia. Therefore, the groundwater tracer radon (222Rn) is used to assess the groundwater and surface water interactions in the tidal wetland.

Abstract Whether water treatment or sewage treatment, it is necessary to increase the analysis and implementation of sludge reduction technology. In the process of wastewater treatment, by adding enzymatic hydrolysis technology, mechanical disposal technology, processing technology, thermal decomposition, and other technical means, the gas in the cells will be released, and then the cells will be sent back to the activated sludge tank to further degrade the dissolution generated by cell rupture, resulting in the reduction of sewage. Sludge reduction technology further reduces the cost of sewage production and treatment through sludge anaerobic discharge, sewage distillation decomposition, sludge drying, sludge incineration, and other treatment processes. Based on this, through the selection and comparison of various sludge reduction technologies, clearly == analyzed the advantages and disadvantages of various technologies that can be used as a reference for other sewage sludge reduction.

Abstract With the strengthening of marine ecological protection in China, the public has paid more attention to the governance of marine plastic waste. This paper studies the problem of public participation in the governance of marine plastic waste in Qingdao. The public's understanding of marine plastic waste and the attitude towards the marine plastic waste are presented. According to the existing problems, this paper proposes countermeasures to promote public participation in the governance of marine plastic waste in Qingdao.

Abstract With climate change, water supply from dams and reservoirs in many regions continues to decline. In order to avoid the problem of continued drought in the Colorado Basin that may occur in the future, we are currently implementing reasonable and sustainable water resources based on Lake Mead and Lake Bowmill in Arizona, California, Wyoming, New Mexico and Colorado distribution plan. Model 1: We established a linear programming model according to the water consumption in industry, agriculture, domestic water and power generation of the five continents in question. But in the subsequent problem solving, we found that the water content of Lake Powell and Lake Mead were different in different periods. In response to this problem, we adopted the method of hierarchical discussion, and successively carried out modeling solutions for three different periods.

Abstract In the context of global climate change and "carbon neutrality", it is important to study the detection of vegetation carbon sources/sinks and their influencing factors in Qinghai Province. Based on the improved CASA model and soil respiration model, the spatial and temporal distribution patterns and changes of NEP were analyzed using MODIS products from 2000 to 2020, combining topographic data, meteorological data and land use data, and exploring the contribution of each driver, in order to reveal the spatial and temporal characteristics of vegetation NEP in Qinghai. The results showed that: 1. The results show that: 1. from 2000 to 2020, the interannual fluctuation of vegetation NEP in Qinghai Province is obvious, showing an increasing trend, and its carbon sink capacity is increasing. 2. the spatial NEP of vegetation in Qinghai Province is high in the southeast and low in the northwest, gradually increasing from the northwest to the southeast. 3. the NEP of vegetation in Qinghai Province increases with slope and elevation, showing an increasing trend and then decreasing. The influence of slope direction on vegetation NEP was not significant. The correlation and partial correlation analyses between vegetation NEP and climatic factors showed that both temperature and precipitation mainly promoted vegetation NEP, and the coupling effect was more obvious.4. The influence of driving factors on vegetation NEP in Qinghai Province had the highest average annual precipitation, and the interaction effect was mainly enhanced by two factors.

Abstract Objective To analyze the correlation between alcohol dependence tendency and agricultural injury in rural residents over 15 years old in Hainan province. Methods A total of 1776 rural residents over 15 years old from 5 counties of Hainan province were investigated by CAGE simple scale and agricultural injury questionnaire. Results The incidence of alcohol dependence tendency was 23.25% in rural residents over 15 years old and 64.5% in people with drinking habits in Hainan province. There was a significant difference in the incidence of agricultural injuries between those with alcohol dependence tendency and those without alcohol dependence tendency (χ2 = 19.533, P

Abstract Coal mine resource reserves have always been the basic material basis of natural production that the entire human civilization system must have. At present, with the continuous deepening and development of the socialist social, industrial and agricultural science and technology as well as the construction process of production culture in China, people's spiritual, material and living standards have been generally improved, and social development requires that the demand for resource mining of the reserves of various important coal mine resources in China is becoming increasingly large. The pollution characteristics of the "three wastes" in coal mines (mainly mine water, coalbed methane and coal gangue) are also becoming and reflecting the serious and complex energy and environmental pollution control problems that are particularly prominent in China at present, and will gradually become a field of widespread concern and international attention worldwide.

Abstract Low permeability reservoir has low porosity and permeability, small pore radius, large capillary force and poor effect of conventional water injection development. The study shows that the imbibition is influenced by rock and fluid properties. It will play a guiding role in the development of low permeability reservoir by studying the mechanism and influencing factors of imbibition and mastering the influence of different factors on the imbibition recovery. Imbibition is also an important reason for fracturing fluid loss. It is of great significance to determine fracturing fluid volume and optimize reflux design to fully study the suction capacity and rate of the matrix.

Abstract Extreme weather events caused by climate change will affect global human safety, so reducing carbon emissions is one of the work centers of all countries in the world. To help HK achieve carbon neutrality by 2050, this paper analyzes the current status of carbon emissions and finds that the work is mainly focused on three parts: power generation, transportation and waste management. Hydrogen will play an important role in solving the technical and environmental problems of power generation and transportation for a long time to come. This paper suggests that HK should introduce green hydrogen energy for power generation and promote hydrogen energy fuel cell electric vehicles when the time is ripe. And in the waste management industry, promoting extended producer responsibility (EPR) and education promotion for better waste reduction and upcycling.

Abstract At the terminal stage of the unit operation, in order to prolong the service life of the catalyst and reduce the cost of replacing the catalyst, a scheme suitable for producing the base oil at the terminal stage of the catalyst was studied. In the 200kt/a hydroisomerization unit of industrial refinery, the base oil of high-grade lubricating oil was produced by prerefining-hydroisomerization- supplementary refining process, using the dewaxing oil from the vacuum fourth oil as raw material, the results of industrial operation show that the temperature of hydroisomerization reaction is reduced by 8 °C, the treatment capacity is increased by 3 t/h, and the yield of heavy base oil is increased by 15.8% as compared with that of the raw material of the furfural refining oil from the vacuum fourth oil, the total yield of base oil increased by 9.3 percentage points, while the pour point of heavy base oil decreased from -16 °C to -22 °C and the cloud point from -3 °C to -8 °C. The furfural-ketone benzol dewaxing oil from the vacuum fourth oil is suitable to be used as the raw material to produce qualified base oil products at the terminal stage of hydroisomerization unit operation.