Historical Evolution of Vernacular Settlement in Tianshui City

Vernacular settlement is a sum of settlements that keep traditional landscapes in the process of urbanization, and its coverage coincides with that of urban community and rural settlement to some extent. It is a phenomenon of social development against the background of rapid urbanization. As a national famous historic and cultural city, Tianshui City should have had excellent traditional cultural genes as the driving force for its development, however, only fragments of some historic blocks have been left in the recent urbanization. This paper, on the basis of investigating the old urban district of Tianshui City, analyzing the historical phenomenon, summarized the root causes for the status quo of vernacular dwellings in the city, so as to raise the concerns on humanistic thought, and provide proper guidance for the sustainable development of vernacular settlement.

The Research on Historical Evolution and Inheritance Development of Ansai waist drum in China

This article from the perspective of sports science and sociology to explain the origin and development ofansai waist drum, analyzes the historical evolution of ansai waist drum, analysis of ansai waist drum in problems existing in the process of development, and according to the analysis and the reality put forward the countermeasures of development of ansai waist drum inheritance： transmission of ansai waist drum based on school, and innovation of art form, ＂waist drum troupe＂ building, the establishment of various rules and regulations and the drummer cultivation mechanism and strengthening network, books, magazines and other publicity and performances.

The Historical Evolution of American Policy Toward Tibet

Tibet is well known around the world today. The Tibet Autonomous Region (TAR) is one of China’s five ethnic minorities’ autonomous regions. However, to some in the West, Tibet’s political position seems open to dispute.It is obviously that no one can reach a proper understanding of this issue without consulting history. In ancient times, Tibet was a vague geographical concept to Western world, but it did witness competition between the great powers in modern times. Originally the so-called "Great Game" brought Russian and British monk-spies and, eventually, the British Indian army, into Lhasa. Then, during World War II, the US established the famous air

China’s historical evolution of environmental protection along with the forty years’reform and opening-up

Along with the 40 years of reform and opening-up,China’s ecological and environmental management system has been evolving continuously.Since the start of the ecological and environmental protection in 1972,China has witnessed“great leaps”of reform on environmental management system about once every 10 years,in order to address the prominent environmental issues at different development stages,and continuously reform,innovate and develop the ecological and environmental governance systems and modes with Chinese characteristics.China adheres to solve environmental problems in the process of development,takes the improvement of the ecological and environmental quality as the core task,and gradually builds its ecological and environmental management systems conforming to the characteristics of different development stages,including a sound ecological and environmental planning&policy system,an improved ecological and environmental governance system and a complete ecological and environmental legal system.During the process of building the socialism with Chinese characteristics for a new era,we should aim at the strategic goal of building a Beautiful China,keep focused on China while stay connected with the world,adhere to green development,accomplish top-level design,build a new pattern of ecological and environmental management system,and co-construct a clean and beautiful world.

Formation and Evolution of Ancient Lakes on South Coast Plain of Laizhou Bay

Based on the data of historical geography, the analysis of the stratigraphic section, and the textual research of place names and satellite photographic interpretations, the authors study the formation and evolution of ancient lakes on the south coast plain of Laizhou Bay where there were once three lakes: Judian Lake, Qingshuibo Lake and Biehua Lake. All the lakes formed 6000 years ago evolved from the lagoons near the estuary and went through two periods, the golden age in the Middle Holocene and the shrinking age in the Late Holocene. The disappearance of the lakes resulted from the drying climate, the migration of the river courses and the activities of human beings. Among the three reasons, the migration of the river courses is the main one.

The Evolution History of Huizhou Print

Huizhou print is a regional print genre based on ancient print,which flourished in the Ming and Qing dynasties.The reasons for its prosperity include geography,cultural and economic development,etc.,and by virtue of the influence of Huizhou merchants,it has had a significant impact on the style of local prints.This paper systematically introduces the general history of Huizhou print from its birth to the present age from three perspectives:the origin and development,the reasons for its prosperity in the Ming and Qing dynasties,and the decline and rebirth in modern times.

Spatio-temporal evolution of Allium L. in the Qinghaie-Tibet-Plateau region: Immigration and in situ radiation

A plethora of studies investigating the origin and evolution of diverse mountain taxa has assumed a causal link between geological processes （orogenesis） and a biological response （diversification）. Yet, a substantial delay （up to 30 Myr） between the start of orogenesis and diversification is often observed. Evolutionary biologists should therefore identify alternative drivers of diversification and maintenance of biodiversity in mountain systems. Using phylogenetic, biogeographic, and diversification rate analyses, we could identify two independent processes that most likely explain the diversity of the widespread genus Allium in the Qinghai-Tibet Plateau （QTP） region： （1） While the QTP-related taxa of the subgenus Melanocrommyum diversified in situ, （2） QTP-related taxa of other subgenera migrated into the QTP from multiple source areas. Furthermore, shifts in diversification rates within Allium could not be attributed spatially and temporally to the uplift history of the QTP region. Instead, global cooling and climate oscillations in the Quaternary were major contributors to increased speciation rates in three clades of AUium. Our study therefore adds to the growing evidence supporting the ＂mountain-geo-biodiversity hypothesis＂, which highlights the role of climate oscillations for the diversification of mountain organisms.

Research on Career Identity in China:A Literature Review

Career identity is one of the important topics to study the psychological problems of employees,especially after the outbreak of CoV-19.Being a populous country in the world,China has a large number of employees from all walks of life,and its research on career identity has attracted more and more attention.Thus,this study aims to sort out the history,characteristics,and trends of the research on career identity in China through a literature review,which can help more scholars pay attention to China’s career identity research.In this study,Citespace is used to statistically analyze the selected literature from China’s National Knowledge Infrastructure(CNKI)and Web of Science(WOS).The results show that:(1)The historical evolution of career identity research in China can be divided into three stages:germination,development and maturity.(2)From the perspective of cooperation between authors and institutions,researchers tend to do independent research,mainly focusing on the research in the field of psychology.(3)From the key words,career identity and employability are the main high-frequency words.(4)From the cluster analysis,the research focuses mainly include social support,teachers’career identity,influencing factors,and job involvement.(5)From the emergent analysis,it can be seen that the research on roles and differences between urban and rural areas is weakening,and the research on factors such as job satisfaction is gradually strengthening as the frontier theme.Finally,according to the existing analysis results,this study predicts the future trend of career identity in China and thinks that it will extend from the fields of concept explanation,interdisciplinary research,scientific research tools,and so on.

Analysis of Tibetan Cities and Towns in Sichuan——A Case Study of Traditional Tibetan Settlements in Gengqing Town, Dege County

Tibetan area is a region consisting of different nationalities and cultures,it has special settlement forms.Dege is a historic and cultural center of Kangba area,local architecture has profound cultural background,it is an important representative of traditional Tibetan buildings in Sichuan.This paper explored the forms of Tibetan forms and architectural spaces,summarized architectural features of Tibetan folk dwellings in Sichuan,and studied formation and evolution of traditional settlements in Gengqing Town in an all-around way.

Evolution, accessibility and dynamics of road networks in China from 1600 BC to 1900 AD

Before the emergence of modern modes of transport, the traditional road infra structure was the major historical means of carrying out nationwide socioeconomic exchange However, the history of transport infrastructure has received little attention from researchers. Given this background, the work reported here examined the longterm development of transport networks in China. The national road network was selected for study and the 3500 years from 1600 BC to 1900 AD was chosen as the study period. Indicators were designed for the maturity level of road networks and an accessibility model was developed for the paths of the shortest distance. The evolution of the road network in China since the Shang Dynasty （1600 BC） was described and its major features were summarized to reveal longterm regu larities. The maturity level of the road network and its accessibility was assessed and regions with good and poor networks were identified. The relationship between China＇s natural, social and economic systems and the road network were discussed. Our analysis shows that the road network in China has a number of longterm regularities. The continuously expanding road network follows a path of inland expansion especially towards the border areas. How ever, its coverage and accessibility are characterized by a coreperipheral configuration, which has close relationships with, not only the natural conditions, but also national defense and warfare. The centralization of national power, national land governance, postal transport, the transport of specialized cargos, and international trade are also related to the develop ment of the road network. This research draws attention to the evolving regularities of trans port networks.