Jilin City is a typical river valley city in Northeast China.In this paper,the authors studied the spatial and temporal expansion characteristics of the built-up areas in Jilin City from 1990 to 2020 using the analysi...Jilin City is a typical river valley city in Northeast China.In this paper,the authors studied the spatial and temporal expansion characteristics of the built-up areas in Jilin City from 1990 to 2020 using the analysis of expansion speed and strength,fractal dimension,barycenter coordinate transfer index and sector analysis.The ultimate-goal is to analyze the driving and restrictive factors that affect the spatial expansion of river valley cities.The results indicate that(1)the expansion speed of urban land in Jilin City has been re-latively slow in the past 30 years,while only slightly faster in 2010–2020;(2)in the spatial dimension,Jilin City mainly expanded to the south,then to the west,and extensive expansion has resulted in complex mor-phology with little stability and compactness;(3)the expansion is affected by multiple factors,of which the positive factor is industrial development,while the restrictive factors include natural factors,population loss,etc.This study provides a case for the formulation of land use policies and land space planning in river valley cities.展开更多
The ratification and implementation of Cooperation and Development Planning Outline of Tumen River Region in China will have great significance to the frontier opening-up in the Northeast Asia Region of China, economi...The ratification and implementation of Cooperation and Development Planning Outline of Tumen River Region in China will have great significance to the frontier opening-up in the Northeast Asia Region of China, economic cooperation in sub-region of Tumen River, and the development of tourism in forerunner zone of "Changchun-Jilin-Tumen". Yanji City is regarded as the fulcrum Chinese city in "Golden Triangle" of Northeast Asian economic zone, whose breakthrough and development in tourism and recreation is in face of new situation. Based on analyzing strength, weakness, opportunity and threat of development of ReBAM in Yanji City, our research further deepens the systematic understanding of development of ReBAM in Yanji City. And we get the conclusion that Yanji city should take the opportunity of cooperation and development of Tumen River Region in China on the basis of newly fledged ReBAM at present, to exploit the potential of market demand for ReBAM, and implement proactive growth-oriented strategy to further improve urban tourism structural system in Yanji City.展开更多
Yanji is the biggest China Korean inhabited city. Based on a newly finished research project, this paper discusses strategic problems about Yanji towards 21st century. The general point of the authors is that at the b...Yanji is the biggest China Korean inhabited city. Based on a newly finished research project, this paper discusses strategic problems about Yanji towards 21st century. The general point of the authors is that at the beginning of new century, Yanji will play a more important role in Tumen River Delta development, regional economy cooperation in Korea Peninsula as well as Northeast Asia, and it will develop to be an important central city in this area. This paper puts forwards Yanji City’s developing goal, urban nature, and urban size, probes its regional orientation, and further probes how to establish The Yanji Urban Economy Cooperation Zone. The authors think that Yanji should depend on its intellect resources and other characteristic resources. Industry development need to pay much attention to modern agriculture, tertiary industry (especially commerce, trade and tourism) and dominant industries, and high-tech industry must give a special care, in order to establish a light industrial structure.展开更多
The authors employ the high-density resistivity method to image the subsurface structure of a mountain in Erdaojiang District,Tonghua City,Jilin Province,China,to evaluate the potential risk of slope failure on surrou...The authors employ the high-density resistivity method to image the subsurface structure of a mountain in Erdaojiang District,Tonghua City,Jilin Province,China,to evaluate the potential risk of slope failure on surrounding residential areas and infrastructure,and identify a shallow fault that extends across the center of the mountain and is perpendicular to the mountain slope and accurately locate the spatial position and depth of another fault on the southern side of the mountain.The results provide an important basis for evaluating mountain slope stability.This study also demonstrates that the high-density resistivity method is effective for detecting mountain faults.展开更多
基金Supported by Project of National Natural Science Foundation of China(No.42071255)。
文摘Jilin City is a typical river valley city in Northeast China.In this paper,the authors studied the spatial and temporal expansion characteristics of the built-up areas in Jilin City from 1990 to 2020 using the analysis of expansion speed and strength,fractal dimension,barycenter coordinate transfer index and sector analysis.The ultimate-goal is to analyze the driving and restrictive factors that affect the spatial expansion of river valley cities.The results indicate that(1)the expansion speed of urban land in Jilin City has been re-latively slow in the past 30 years,while only slightly faster in 2010–2020;(2)in the spatial dimension,Jilin City mainly expanded to the south,then to the west,and extensive expansion has resulted in complex mor-phology with little stability and compactness;(3)the expansion is affected by multiple factors,of which the positive factor is industrial development,while the restrictive factors include natural factors,population loss,etc.This study provides a case for the formulation of land use policies and land space planning in river valley cities.
基金Supported by National Natural Science Foundation (41071333)the 211 Key Discipline Building Project of Yanbian University
文摘The ratification and implementation of Cooperation and Development Planning Outline of Tumen River Region in China will have great significance to the frontier opening-up in the Northeast Asia Region of China, economic cooperation in sub-region of Tumen River, and the development of tourism in forerunner zone of "Changchun-Jilin-Tumen". Yanji City is regarded as the fulcrum Chinese city in "Golden Triangle" of Northeast Asian economic zone, whose breakthrough and development in tourism and recreation is in face of new situation. Based on analyzing strength, weakness, opportunity and threat of development of ReBAM in Yanji City, our research further deepens the systematic understanding of development of ReBAM in Yanji City. And we get the conclusion that Yanji city should take the opportunity of cooperation and development of Tumen River Region in China on the basis of newly fledged ReBAM at present, to exploit the potential of market demand for ReBAM, and implement proactive growth-oriented strategy to further improve urban tourism structural system in Yanji City.
基金the auspices of the Chinese Academy of Sciences(REGION IV - 9907) and Yanji Municipal Government.
文摘Yanji is the biggest China Korean inhabited city. Based on a newly finished research project, this paper discusses strategic problems about Yanji towards 21st century. The general point of the authors is that at the beginning of new century, Yanji will play a more important role in Tumen River Delta development, regional economy cooperation in Korea Peninsula as well as Northeast Asia, and it will develop to be an important central city in this area. This paper puts forwards Yanji City’s developing goal, urban nature, and urban size, probes its regional orientation, and further probes how to establish The Yanji Urban Economy Cooperation Zone. The authors think that Yanji should depend on its intellect resources and other characteristic resources. Industry development need to pay much attention to modern agriculture, tertiary industry (especially commerce, trade and tourism) and dominant industries, and high-tech industry must give a special care, in order to establish a light industrial structure.
基金Supported by National Key R&D Program of China and Fundamental Research Funds for the Central Universities(2017YFC0601305)。
文摘The authors employ the high-density resistivity method to image the subsurface structure of a mountain in Erdaojiang District,Tonghua City,Jilin Province,China,to evaluate the potential risk of slope failure on surrounding residential areas and infrastructure,and identify a shallow fault that extends across the center of the mountain and is perpendicular to the mountain slope and accurately locate the spatial position and depth of another fault on the southern side of the mountain.The results provide an important basis for evaluating mountain slope stability.This study also demonstrates that the high-density resistivity method is effective for detecting mountain faults.
