scholarly journals How to Identify Future Priority Areas for Urban Development: An Approach of Urban Construction Land Suitability in Ecological Sensitive Areas

Author(s):  
Xiaobo Liu ◽  
Yukuan Wang ◽  
Ming Li

The suitability of urban construction land (SUCL) is key to the appropriate utilization of land resources and represents an important foundation for regional exploration and land management. This study explores the SUCL conceptual framework by considering the theory of human-land relationships. The upper reaches of the Yangtze River were studied, a typical ecologically-sensitive area of China. The spatial pattern and control of the SUCL were determined using the improved entropy method. The results show that an area of 91 × 104 km2 was categorized as prohibited or restricted, and these categories account for 28.61% and 50.66% of the total area, respectively. Priority areas and suitable areas are mainly located in the Chengdu Plain, the urban agglomeration of southern Sichuan Province, Chongqing, and the economic corridor in the west, and the surrounding cities of Guiyang and Kunming. SUCL hotspots feature obvious spatial heterogeneity and are concentrated in Sichuan Basin and Guizhou Plateau. The SUCL is obviously constrained by the physical geography of this region. In addition, towns affected by the pole–axis effect have stronger suitability for development and construction. These findings will be very useful for land managers as they provide relevant information about urban development in mountainous areas.

2012 ◽  
Vol 610-613 ◽  
pp. 3814-3820
Author(s):  
Ping Ren ◽  
Fen Na Wu ◽  
Jie Ming Zhou

Currently, urban development needs more construction land, and food security requires the guarantee of a certain farmland. This causes a sharp contradiction between the lack of urban construction land and the protection of farmland. Meanwhile, rural construction land was extensively used. So, the solution of this contradiction is allocating urban and rural construction land. Taking Xindu district of Chengdu as an example, this paper proposed the implementation method and operation environment of linking the increase in land used for urban construction with the decrease in land used for rural construction (hereinafter referred to as the “link”). It is proven by research that the farmland increased 11.4 mu, the land of farmers centralization residence saved 438.7 mu and the land of urban construction increased 533.2 mu. The link realized the goal of without increasing the total amount of construction land and decreasing the farmland, and improving quality at the same time.


2014 ◽  
Vol 1010-1012 ◽  
pp. 1883-1888
Author(s):  
Wen Wen Qiu

Using co-integration analysis, Granger causality test, and impulse response analysis in an integrated way, this paper makes empirical study of the impact on China’s carbon emission by its urban construction land expansion. The result shows that there is a long-run equilibrium relationship between carbon emission and urban construction land expansion in China, with the latter being the Granger cause of the increase in carbon emission. However, the impact process shows a lagging nature. The impact effect is not so evident in a short term, but is rather significant in a long term (five to ten years). To reduce its carbon emission, China should optimize its urban development mode and control the scale of urban development reasonably, especially focusing on the economical and intensive use of land and upgrading of industrial structure, so as to reduce energy consumption by its urban expansion, check excessive increase in carbon emission, and promote the sustainable urbanization.


2014 ◽  
Vol 584-586 ◽  
pp. 403-406
Author(s):  
Xiao Dong Qin

In Baotou, along with the rapid economic development in the recent 10 years, the construction speed of the City is getting more and more quickly, and the urban land scale is expanding rapidly. At the same time, the restrictions derived from the land resources are also getting stronger and stronger, which results in the even more obvious contradiction between the differentiated requirements from the urban development and proper land usage. The paper analyzes the scale of Baotou urban construction land expansion and the transformation rules of land-using structure in the recent 10 years, and makes conclusions upon the characteristics of urban land expansion. The paper aims to present an optimization strategy of proper urban construction land expansion.


2019 ◽  
pp. 49-56
Author(s):  
E.N. Nikiforova ◽  
Yu.Yu. Rassypnova ◽  
N.M. Guryanova

В статье представлен материал по проблеме воспроизводства земельных ресурсов Пензенской области, основные аспекты которых сегодня являются ключевыми и входят в качестве приоритетных направлений реализации ряда государственных программ и иных законодательных актов. Авторами затрагивается проблема распределения земель сельскохозяйственного назначения по различным формам собственности и по угодьям. Система воспроизводства земельных ресурсов строится на интеграции правового, организационного, учетного, функционального аспектов и контроле за целевым их использованием. Эффективность данной системы выражается в результативных показателях: урожайность сельскохозяйственных культур, валовой сбор, бонитет почвы. В качестве сравнительных характеристик процесса воспроизводства могут использоваться и относительные переменные: объем производства продукции в расчете на один балл бонитета почвы или на рубль кадастровой стоимости земли.The article presents material on the problem of the reproduction of land resources in Penza region, the main aspects of which are essential today and which are included as priority areas for the implementation of a number of state programs and other legislative acts. The problem of the distribution of agricultural land by various forms of ownership and by land is discussed. The system of reproduction of land resources is based on the integration of legal, organizational, accounting, functional aspects and control over their intended use. The effectiveness of this system is expressed in effective indicators: crop productivity, gross yield, soil bonitet. Relative variables can also be used as comparative characteristics of the reproduction process: the volume of production per one point of soil bonitet or per ruble of the cadastral value of land.


2019 ◽  
Vol 5 (10) ◽  
pp. 2198-2206
Author(s):  
Yang Wang ◽  
Lang Liu

Urban utility tunnel has been regarded as an important symbol of urban modernization, so it is important to understand the quantized relationship between city development and urban utility tunnel for city management and policy making. In this study, the internal relationship between the development amount of urban utility tunnel and urban population density was discussed, as well as urban GDP per capita, urban construction land area per capita and urban land price index, based on the IBM SPSS platform, through adopting the development amount of urban utility tunnel and the urban development data of the past 46 years of Japan. It was shown that the correlation relationship of the development amount of urban utility tunnel with the density of urban population was comparatively strong negative, and relatively strong positive, comparatively strong positive, relatively strong negative for GDP per capita, urban construction land area per capita and urban land price index respectively, which explained the driving effect that urban development imposed on urban utility tunnel construction in essence. Furthermore, a quantitative model was proposed for the relationship between the development amount of urban utility tunnel and urban development indexes, and the model could be a reference for decision making of urban utility tunnel development in China and other countries.


Hypatia ◽  
2021 ◽  
Vol 36 (1) ◽  
pp. 1-21
Author(s):  
Amber Knight ◽  
Joshua Miller

AbstractNoninvasive prenatal testing (NIPT) promises to enhance women's reproductive autonomy by providing genetic information about the fetus, especially in the detection of genetic impairments like Down syndrome (DS). In practice, however, NIPT provides opportunities for intensified manipulation and control over women's reproductive decisions. Applying Miranda Fricker's concept of epistemic injustice to prenatal screening, this article analyzes how medical professionals impair reproductive decision-making by perpetuating testimonial injustice. They do so by discrediting positive parental testimony about what it is like to raise a child with DS. We argue that this testimonial injustice constitutes a twofold harm: (1) people with DS and their family members who claim that parenting a child with DS may be a rewarding and joyous experience are harmed when they are systematically silenced, disbelieved, and/or denied epistemic credibility by medical professionals, and (2) pregnant women are harmed since they might make poorly informed choices without access to all relevant information. The broader implication of the analysis is that epistemic justice is a precondition of reproductive autonomy. We conclude by calling for federal oversight of the acquisition and dissemination of information that prospective parents receive following a positive diagnosis of DS to ensure that it is comprehensive and up to date.


2018 ◽  
Vol 7 (5) ◽  
pp. 198 ◽  
Author(s):  
Yuetian Yan ◽  
Rui Zhou ◽  
Xinyue Ye ◽  
Hao Zhang ◽  
Xinjun Wang

2021 ◽  
Vol 6 (166) ◽  
pp. 204-210
Author(s):  
O. Melnyk ◽  
S. Onyshchenko ◽  
O. Lohinov ◽  
V. Okulov ◽  
I. Pulyaev

Maritime security in recent decades has always been a separate issue, one that has been acute for both shipowners and crews of seagoing vessels. It has been marked by periods of relative stability and periods of emerging and growing threats, from the days of the sailing fleet to the era of ironclad steam shipbuilding. Certainly, it is difficult to overestimate the significant role of the scientific community, which has long investigated this problem, revealing its theoretical and practical sides. The professional experience of maritime industry specialists has also sufficiently served to ensure that systematic interest in the issue has provided the basis for the development of strategies and integrated approaches that ensure the safety of vessels and crews at modern levels. Without the latest advances in maritime safety, shipping, as an industry, would not be able to achieve the current level of reliability in ensuring shipboard processes. Every generation of mankind has prioritized maritime safety, contributing to improving its standards and stressing the importance of continuous development of the theoretical framework. At least more than twenty million tons of cargo and more than five hundred thousand passengers move daily by water transport, so the concept of maritime safety extends not only to the safety of life at sea, the safety of vessels and the safety of cargo, but also to the prevention of maritime accidents and pollution. The increasing share of maritime and river transport in international freight and passenger traffic has led to the need for increased maritime safety requirements due to the technical upgrading of maritime transport. This process is based on the principles of current control over the process of vessel operation and prompt acquisition of necessary data and relevant information during the voyage, anticipated route and control over the state of work parameters of technical means of the vessel, but the key aspect of safety is assessment of existing threats and development of ways and methods of ensuring vessel safety.


Sign in / Sign up

Export Citation Format

Share Document