Abstract.Using remote sensing monitoring data of land use/land cover in China in 2000 and 2020, this study explores the changes in land use types in Yulin City through the land use transfer matrix. The results indicate that the main types of land use in Yulin City are grassland, cultivated land, and unused land. From 2000 to 2020, the order of absolute changes in the area of land use types in the study area is: unused land>grassland>construction land>cultivated land>forest land>water area, and its changes are closely related to national ecological policies; The area of construction land has … Read more →

Abstract.In order to explore the influence of different parameters of fixed ballast in the fan foundation mechanism on the hydrodynamic performance of single-column floating fan, based on potential flow theory, this paper adopts the surface element method and uses ANSYS AQWA to establish the hydrodynamic model of single-column floating fan, and obtains the amplitude response operators in different directions. By comparing the amplitude response operators of different models, the influence of different parameters of fixed ballast on single-column floating fan is discussed and analyzed, which provides a … Read more →

Abstract.Human development and water resources are inseparable, there is no shortage of water resources in the world, but there is a total amount of abundant, can directly use fresh water scarce. At the same time, the distribution of water resources in space and time is not uniform, and different regions have different development degrees and different utilization degrees of water resources. Read more →

Abstract.Willingness to communicate in a second or foreign language (L2 WTC) is of great importance when it comes to individual difference variables, which influences largely the target language learning process. The growing emphasis on real communication in language learning has greatly promoted studies of L2 WTC and made it a significant goal of L2 pedagogy. In view of that, many potential antecedents of L2 WTC were examined to with anticipations of facilitating it. However, emotional factors, especially positive ones, remain relatively rare touched. Thus, present study aims to explore the effects of … Read more →

Abstract.The area of medium to low yield farmland in China is huge and widely distributed. As a strategic reserve farmland resource, it is of great significance for ensuring food security. This article systematically reviews the problems of declining fertility, organic matter content, and biodiversity in China's medium and low yield fields, and clarifies the focus on the development of ecological improvement materials in the future. This helps to explore the path to improve green, high yield, and efficient production capacity in low to medium yield fields, and promote the achievement of food security … Read more →

Abstract.In recent years, the situation of land pollution has become increasingly serious, exacerbating the contradiction between supply and demand of land resources, and seriously threatening the red line of arable land and food security. In order to alleviate conflicts, ensure the red line of arable land, protect food security, and increase construction land, it is necessary to combine government policy guidance and use engineering technology to turn polluted land into usable land. By consulting literature and studying the policy orientation of contaminated land, combined with the engineering and … Read more →

Abstract.At present, China's economy is transforming from a stage of high-speed growth to a stage of high-quality development. Building an ecological civilization is an important part of the realization of the Chinese dream of national rejuvenation. Air pollution will cause harm to human health, ecological environment, social and economic aspects, and its pollution level is affected by many factors, such as PM2.5, PM10, CO, temperature, wind speed, precipitation and so on. In order to implement the party's 20th spirit, strengthen the coordinated control of pollutants, basically eliminate heavy … Read more →

Abstract.An atomic fluorescence method was established for the determination of arsenic in geological samples . After sample digestion, arsenic reacts with potassium borohydride in a specific medium to produce volatile hydride. The fluorescence of characteristic wavelength is emitted under the irradiation of argon loaded quartz atomizer light source, and the fluorescence intensity is proportional to the content of elements. Read more →

Abstract.The report of the 20th National Congress of the Communist Party of China proposed the policy of "actively and steadily promoting carbon peak and carbon neutrality". In order to improve infrastructure construction and promote regional economic development, Bengbu City has actively responded to the national call for energy conservation and emission reduction. However, there are still problems in its application and development, such as imbalanced technological development, unreasonable industrial structure, and low level of technological research and development. Therefore, sorting out the … Read more →

Abstract.Due to the fragility of its natural environment and the strong impact of human activities, the Loess Plateau is one of the regions with the most severe soil erosion in China. The severe soil erosion on the Loess Plateau has caused immeasurable losses to the regional economic development and ecological security. China attaches great importance to the management of soil erosion on the Loess Plateau. After decades of soil erosion control, the ecological environment of the Loess Plateau has been effectively restored, and the social and economic development has also been significant. This study … Read more →

Abstract.Against the backdrop of the new curriculum and college entrance examination reforms, the weightage of high school English writing scores in college entrance examination papers has increased significantly. Consequently, the expectations for high school English writing have also risen, making it an indispensable aspect of language learning. In this regard, teachers must prioritize students' autonomy, cooperation, and inquiry-based learning experiences, particularly in English classrooms, where they should create an enabling environment for effective English education. High school English … Read more →

Abstract.Soil salinization is increasing, which seriously threatens the local ecological environment security and affects the development of social economy. Plant growth-promoting rhizobacteria (PGPR) is the bacterial population isolated from rhizosphere soil that has a growth-promoting effect on plants, which is of great significance for improving salt stress. In this study, pepper was used as the research object, and the effect of salt-dissolving and growth-promoting bacteria on pepper plants was studied by pot experiment. A total of 7 treatments were set up, 0 % salt sterility ( CK-0 % ), 0.5 % salt … Read more →

Abstract.This paper provides a modified titanium dioxide nanotube with a specific structure made by a specific method. The modified titanium dioxide nanotube exists in a nanotube structure with a smaller size and specific surface area, and the surface hydrophobicity treatment of the modified titanium dioxide nanotube is also given, allowing the modified titanium dioxide nanotube to participate in the cross-linking network of organic resins such as unsaturated polyester resin, On the one hand, it can ensure the uniform dispersion of modified titanium dioxide nanotubes in the insulation paint, fully … Read more →

Abstract.In view of the technical difficulties encountered in the construction and development of the agricultural industry chain in the Shaanxi section of the Hanjiang River Basin, such as the problems of crop planting and ecological industry chain construction, the typical research area of the Shaanxi section of the Hanjiang River Basin-Hanzhong City was investigated. By exploring the ecological planting mode of the flood land in the Hanjiang River Basin, the ecological planting mode of the flood land was optimized in order to provide reference for the development of the agricultural planting … Read more →

Abstract.Great changes have taken place in foreign language teaching methodology over these years due to the changes of language teaching’s goals and concepts or the development of technologies. As we know, our ultimate teaching goal is to help students become a whole person. Despite the popularity and dominance of communicative language teaching and task-based language teaching in these days, situational language teaching is still implemented by teachers for various education levels to achieve teaching objectives. Even though these days considerable scholars hold a sharp criticism on this teaching … Read more →

Abstract.Coal production will continue to increase year by year, and the amount of waste discharged will also increase year by year. In addition, the amount of coal waste accumulated in the past is quite huge. In order to implement the concept of ecological civilization in the new era, reduce the atmospheric, water, and ecological environmental problems caused by the accumulation of coal gangue in the region, solve the safety and environmental risks of existing waste disposal sites, restore the ecological and environmental functions of waste disposal sites and surrounding areas, and improve the … Read more →

Abstract.In the context of digital transformation, the ever-changing new economy has changed the structure and management mode of organizations, and the professional environment has become increasingly complex. The external environment is becoming increasingly unpredictable for employees, which requires them to have stronger career adaptability and better adapt to the dynamic professional environment. Therefore, how to enhance employees' professional resilience and respond to pressure from both internal and external sources within the enterprise has become an urgent issue that requires attention. Based … Read more →

Abstract.At present, the development of efficient ecological agriculture in the loess hilly and gully region is faced with slope problems, gully problems and resource utilization problems. The loess Plateau gully region is the traditional dry farming area in China, and it is also the main grain producing area with a long farming history. Due to natural factors such as terrain fragmentation, rainfall concentration and loose soil, deforestation, reclamation of steep slopes, and overgrazing, human factors such as deterioration of ecological environment, serious soil erosion, reduction of cultivated land … Read more →

Abstract.As a significant aspect in the history of teaching approaches, communicative teaching deserves our deep contemplation for its significance and value. This article attempts to explore the development process of communicative teaching in the history of Chinese education, starting from its origin background. It aims to redefine its essential characteristics and further examine some highlights and shortcomings of communicative teaching. In addition, with the help of existing research, explore the practical application of communicative approaches in English teaching and propose certain teaching … Read more →

Abstract.In order to solve the problem of microalgae biomass harvesting in suspension systems, attached culture systems were proposed. In this system, microalgae are fixed on the surface or inner layer of the carrier and grow in an aggregated form. Compared with suspension culture, attached culture has higher microalgae biomass density and easier dehydration and harvesting processes. The biomass can be harvested by simply separating the carrier containing microalgae from the culture medium. Read more →