Spatiotemporal Characteristics of Urban–Rural Construction Land Transition and Rural–Urban Migrants in Rapid-Urbanization Areas of Central China

2020 ◽  
Vol 146 (1) ◽  
pp. 05019023 ◽  
Author(s):  
Enxiang Cai ◽  
Yaolin Liu ◽  
Jiwei Li ◽  
Weiqiang Chen
Keyword(s):  
Central China ◽  
Rapid Urbanization ◽  
Construction Land ◽  
Spatiotemporal Characteristics ◽  
Urban Migrants ◽  
Urban Rural ◽  
Rural Construction

scholarly journals Identifying Dynamic Changes in Ecosystem Services Supply and Demand for Urban Sustainability: Insights from a Rapidly Urbanizing City in Central China

2020 ◽  
Vol 12 (8) ◽  
pp. 3428 ◽  
Author(s):  
Zhengxin Ji ◽  
Yueqing Xu ◽  
Hejie Wei
Keyword(s):  
Ecosystem Services ◽  
Supply And Demand ◽  
Urban Sustainability ◽  
Well Being ◽  
Central China ◽  
Ecological Management ◽  
Dynamic Changes ◽  
Rapid Urbanization ◽  
Management Regime ◽  
Urban Rural

Identifying the balance and dynamic changes in supply and demand of ecosystem services (ES) can help maintain the sustainability of the regional ecosystem and improve human well-being. To achieve a sustainable ecological management regime in Zhengzhou City, this study presented a comprehensive framework for identifying dynamic changes of ES supply and demand and managing ES. Using land use data of Zhengzhou City in 1995, 2005, and 2015 and incorporating expert knowledge and the ES evaluation matrix, we evaluated the spatiotemporal changes in the ES supply and demand in Zhengzhou. Gradient analysis was conducted to identify urban–rural patterns in the budgets of ES supply and demand. Spatial autocorrelation analysis was employed to identify the hotspot areas of ES surpluses or deficits. The research results show the following: (1) In the past 20 years, the supply-and-demand relationship of ES in Zhengzhou has gradually evolved in a direction where supply falls short of demand. The average budget index of Zhengzhou’s ES supply and demand decreased from 7.30 in 1995 to −4.89 in 2015. Changes in the supply and demand status of ES in Zhengzhou corresponded to the background of rapid urbanization. (2) Urban–rural gradient differences exist in the budgets of ES supply and demand in Zhengzhou. Core development areas, such as the Zhengzhou urban areas, are in deficit, whereas a balance or surplus can be observed in rural areas far from urban centers. (3) The surplus hotspots of ES budgets were mainly distributed in the western and southern mountainous areas of Zhengzhou, and they were scattered and the scope shrank, with a decrease of 2.73 times in 20 years, whereas the deficit hotspots expanded outward with each urban area as the center, with an increase of 5.77%. Ecological management zoning (ecological conservation area, ecological improvement area, and ecological reconstruction area) with the effective guidance of ecological and economic policies could comprehensively improve ES management and achieve urban sustainability. The framework in this study can easily and quickly assess the supply and demand status of ES and provide scientific support for the ecological management in rapidly urbanizing areas.

Research on Optimal Layout of Rural-Urban Construction Land Used Based on GIS Spatial Treatment in Foshan

2012 ◽  
Vol 610-613 ◽  
pp. 3785-3788
Author(s):  
Xuan Chen ◽  
Jian Zhang ◽  
Zai Gui Yang
Keyword(s):  
Land Use ◽  
Guangdong Province ◽  
Spatial Layout ◽  
Land Resources ◽  
Optimal Layout ◽  
Urbanization Process ◽  
Construction Land ◽  
Urban Rural ◽  
Intensive Land Use ◽  
Rural Construction

With the continuous acceleration of urbanization process in our country, the conflict between demand of urban-rural construction land and limitation of land resources in area with rapid economic development is becoming sharper. Therefore, the research for planning and layout of urban-rural construction land is particular important. This paper takes Foshan City, Guangdong Province as an example. With GIS spatial analysis, divide the researched area into grids of some standard dimensions (20 m×20 m) through setting a group of construction permission elements; calculate the construction permission index of each grid (evaluation unit) and determine the proper land construction degree of different grids (evaluation unit) according to size of construction permission index; define areas with different construction degrees and strengths hierarchically; establish the guide rules of construction permission for each area to realize the reasonable spatial layout of construction land, so as to arrange reasonable space for newly increased urban-rural construction land in general planning of land use, achieving economical and intensive land use.

Urban - Rural construction land Transition(URCLT) in Shandong Province of China: Features measurement and mechanism exploration

2019 ◽  
Vol 86 ◽  
pp. 101-115 ◽  
Author(s):  
Qu Yanbo ◽  
Jiang Guanghui ◽  
Tian Yaya ◽  
Shang Ran ◽  
Wei Shuwen ◽  
...  
Keyword(s):  
Shandong Province ◽  
Construction Land ◽  
Urban Rural ◽  
Rural Construction

Urban–rural construction land transition and its coupling relationship with population flow in China's urban agglomeration region

Cities ◽  
2020 ◽  
Vol 101 ◽  
pp. 102701 ◽  
Author(s):  
Congmou Zhu ◽  
Xiaoling Zhang ◽  
Ke Wang ◽  
Shaofeng Yuan ◽  
Lixia Yang ◽  
...  
Keyword(s):  
Urban Agglomeration ◽  
Construction Land ◽  
Coupling Relationship ◽  
Urban Rural ◽  
Rural Construction

scholarly journals The Evolving Structure of Rural Construction Land in Urbanizing China: Case Study of Tai’an Prefecture

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 65
Author(s):  
Daquan Huang ◽  
Yue Lang ◽  
Tao Liu
Keyword(s):  
Land Use ◽  
Socioeconomic Development ◽  
Diversity Index ◽  
Spatial Differentiation ◽  
Multiple Linear Regression Model ◽  
Rapid Urbanization ◽  
Construction Land ◽  
The North ◽  
Rural Construction

With a rapid surge in urbanization, rural functions and the structure of rural construction land are undergoing profound change. Using the village-level units of Tai’an Prefecture in the North China Plain as the research object, this study employs the land use survey data in 2019, selecting the diversity index, concentration index, land use type, and location index to analyze the spatial pattern of rural construction land structure. Thereafter, a multiple linear regression model is developed to identify the driving factors of spatial differentiation in rural construction land structure. The results show that (1) there are remarkable spatial differences in all indices representing the structure of construction land in Tai’an and the landscape varies across the indices, and (2) the most important factors affecting the spatial differentiation of construction land use structure are the location, socioeconomic development, and policy, while the effects of natural conditions are limited. The worse the location conditions and the more regressed the economic and social development level, the lower the diversity of construction land and the more unitary the structure. The results of this case study demonstrate the crucial role of the changing urban–rural relation under rapid urbanization in shaping the geography of rural land use, which is expected to have reference significance for researchers and policy makers dealing with rural transformation in developing countries.

scholarly journals Occupation of Cultivated Land for Urban–Rural Expansion in China: Evidence from National Land Survey 1996–2006

Land ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1378
Author(s):  
Yangbing Miao ◽  
Jiajie Liu ◽  
Raymond Yu Wang
Keyword(s):  
Economic Development ◽  
Cultivated Land ◽  
Land Resources ◽  
Land Occupation ◽  
Construction Land ◽  
Intensive Use ◽  
Urban Rural ◽  
Land Survey ◽  
Spatio Temporal ◽  
Rural Construction

Construction land expansion often occurs on cultivated land in developing countries during rapid urbanization and industrialization. Understanding its characteristics and driving mechanisms is of great significance for land-use policy and sustainable development. This paper depicted the spatio-temporal patterns of China’s urban–rural expansion and its occupation of cultivated land based on national land survey data from 1996 to 2006. It further explored the influencing mechanism of cultivated land occupation for urban–rural construction land. The results showed that the establishment and expansion of various economic development zones contribute to more than half of the occupation of cultivated land while the expansion of cities and towns is relatively slower, and their sources of construction land are more diverse. The empirical results showed that (1) economic growth and investment play key roles in shaping the spatio-temporal patterns of the occupation of cultivated land for urban–rural construction land, and (2) the mechanisms of cultivated land occupation in different stages of regional development are different. In particular, the establishment of national economic development zones is conducive to the intensive use of construction land and the protection of cultivated land in inland regions, whereas provincial economic development zones have led to a waste of land resources in coastal regions. Based on the results, this study suggested that the policies to the intensive use of land resources and cultivated land protection required regional disparities.

Simulation of the spatial and temporal changes of complex non-point source loads in a lake watershed of central China

2013 ◽  
Vol 67 (9) ◽  
pp. 2050-2058 ◽  
Author(s):  
Zhuang Yanhua ◽  
Hong Song ◽  
Zhang Wenting ◽  
Lin Hongyan ◽  
Zeng Qinghui ◽  
...  
Keyword(s):  
Point Source ◽  
Temporal Change ◽  
Coupling Model ◽  
Temporal Changes ◽  
Central China ◽  
Change Model ◽  
Construction Land ◽  
Pollutant Loads ◽  
Spatial Changes ◽  
Urban Rural

In this study, a coupling model of agricultural and urban non-point source (AUNPS) is established in order to estimate complex non-point source (NPS) pollutant loads in the urban–rural fringe. Furthermore, a spatial–temporal change model of non-point source (CA-AUNPS) is established by the coupling of AUNPS and cellular automata (CA) models. The total nitrogen (TN) and total phosphorus (TP) loads in Tangxun watershed were simulated during 1991–2020, and the results show that: (1) the CA-AUNPS model is an effective tool to simulate the spatial–temporal changes of NPS pollutant loads in urban–rural fringe; (2) in terms of the spatial changes, the TN and TP loads generally showed as rural/urban construction land > farmland > forest/green land, and the high-value areas of NPS pollutant loads expanded from north to south with the increase of construction land; with regard to temporal changes, the TN and TP loads generally displayed an increasing tendency during 1991–2020, and by 2020 the TN and TP loads will increase to 370.06 and 33.89 t yr−1, respectively; (3) the spatial–temporal changes of TN and TP loads in Tangxun watershed correlate strongly with the land-use, slope, and rainfall.

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