Research on Optimization of China’s Urban Indemnificatory Housing Supply

2012 ◽  
Vol 479-481 ◽  
pp. 1318-1324
Author(s):  
Zhi Qing Li ◽  
Jin Xin Tian ◽  
Tian Hua Song

The contradiction between the effective supply and the uncertain demand in housing security system, which is an important part of the urban social security system, has been a major obstacle to urban sustainable development since 1998, and how to effectively deal with it is becoming more and more important. In this paper, the uncertain demand of indemnificatory housing, which was caused by the rapid urbanization, is considered, and the models for indemnificatory housing provision under box constraints, ellipsoid constraints and polyhedral constraints are constructed respectively by using distributional robust optimization, and at the same time, the reliability of optimal models in theory is proved in the form of theorem. In the end, as application of models, the paper takes Beijing as an example, and conducts empirical research on provision of indemnificatory housing during the past five years (2006-2010), which shows the effectiveness of the method.

2021 ◽  
Vol 13 (21) ◽  
pp. 4440
Author(s):  
Jingye Li ◽  
Jian Gong ◽  
Jean-Michel Guldmann ◽  
Jianxin Yang

Rapid urbanization significantly affects the productivity of the terrestrial ecosystem and the foundation of regional ecosystem services, thereby detrimentally influencing the ecological environment and urban ecological security. The United Nations’ Sustainable Development Goals (SDGs) also require accurate and timely assessments of where people live in order to develop, implement and monitor sustainable development policies. Sustainable development also emphasizes the process of protecting the ecological environment for future generations while maintaining the current needs of mankind. We propose a comprehensive evaluation method for urban ecological quality (UEQ) using Landsat TM/ETM+/OLI/TIRS images to extract remote sensing information representing four ecological elements, namely humidity, greenness, heat and dryness. An improved comprehensive remote sensing ecological index (IRSEI) evaluation model is constructed by combining the entropy weight method and principal component analysis. This modeling is applied to the city of Wuhan, China, from 1995 to 2020. Spatial autocorrelation analysis was conducted on the geographic clusters of the IRSEI. The results show that (1) from 1995 to 2015, the mean IRSEI of Wuhan city decreased from 0.60 to 0.47, indicating that environmental deterioration overwhelmed improvements; (2) the global Moran’s I for IRSEI ranged from 0.535 to 0.592 from 1995 to 2020, indicating significant heterogeneity in its spatial distribution, highlighting that high and low clusters gradually developed at the edge of the city and at the city center, respectively; (3) the high clusters are mainly distributed in the Huangpi and Jiangxia districts, and the low clusters at the city center, which exhibits a dense population and intense human activity. This paper uses remote sensing index methods to evaluate UEQ as a scientific theoretical basis for the improvement of UEQ, the control of UEQ and the formulation of urban sustainable development strategies in the future. Our results show that the UEQ method is a low-cost, feasible and simple technique that can be used for territorial spatial control and spatiotemporal urban sustainable development.


2018 ◽  
Vol 9 (1) ◽  
pp. 1-16
Author(s):  
S. Karly Kehoe ◽  
Chris Dalglish

Evidence of how history and culture have been or should be harnessed to promote sustainability in remote and rural communities is mounting. To be sustainable, development must come from within, it must serve future generations as well as those in the present and it must attend to the vitality of culture, society, the economy and the environment. Historical research has an important contribution to make to sustainability, especially if undertaken collaboratively, by challenging and transcending the boundaries between disciplines and between the professional researchers, communities and organisations which serve and work with them. The Sustainable Development Goals’ motto is ‘leaving no one behind’, and for the 17 Goals to be met, there must be a dramatic reshaping of the ways in which we interact with each other and with the environment. Enquiry into the past is a crucial part of enabling communities, in all their shapes and sizes, to develop in sustainable ways. This article considers the rural world and posits that historical enquiry has the potential to deliver insights into the world in which we live in ways that allow us to overcome the negative legacies of the past and to inform the planning of more positive and progressive futures. It draws upon the work undertaken with the Landscapes and Lifescapes project, a large partnership exploring the historic links between the Scottish Highlands and the Caribbean, to demonstrate how better understandings of the character and consequences of previous development might inform future development in ways that seek to tackle injustices and change unsustainable ways of living. What we show is how taking charge of and reinterpreting the past is intrinsic to allowing the truth (or truths) of the present situation to be brought to the surface and understood, and of providing a more solid platform for overcoming persistent injustices.


2017 ◽  
Vol 33 (4) ◽  
pp. 39-46
Author(s):  
T. D. Malyutina

The article substantiates the importance of the company's economic security service in the modern conditions of business operations. The level of security of the enterprise is ensured by high economic potential, financial independence, sustainable development, personnel responsibility. The loss of at least one of the listed elements of a universal system of economic security is characterized by unforeseen consequences for the enterprise. The untimely modernization of the economic security system, its obsolete form, will not ensure the proper level of the company's confident working.


2020 ◽  
Vol 12 (5) ◽  
pp. 1947 ◽  
Author(s):  
Philip Hallinger ◽  
Vien-Thong Nguyen

This systematic review of research used science mapping as a means of analyzing the knowledge base on education for sustainable development (ESD) in K-12 schooling. The review documented the size, growth trajectory and geographic distribution of this literature, identified high impact scholars and documents, and visualized the “intellectual structure” of the field. The database examined in this review consisted of 1842 English language, Scopus-indexed documents published between 1990 and 2018. The review found that the knowledge base on ESD has grown dramatically over the past 30 years, with a rapidly accelerating rate of publication in the past decade. Although the field has been dominated by scholarship from Anglo-American_European nations, there is evidence of increasing geographic diversification of the ESD knowledge base over the past 15 years. Citation analyses identified authors who have had a significant influence on the development of this literature. Author co-citation analysis revealed three “schools of thought” that comprise the “intellectual structure” of this knowledge base: Education for Sustainable Development, Developing a Sustainability Mindset, Teaching and Learning for Sustainability. Document content analyses led to the conclusion that the current knowledge base is heavily weighted towards critical, descriptive and prescriptive papers, with an insufficient body of analytical empirical studies. Several recommendations are offered for strengthening this literature.


2021 ◽  
Vol 13 (7) ◽  
pp. 4022
Author(s):  
Pernilla Gluch ◽  
Stina Månsson

Over the past two decades, sustainability professionals have entered the architecture, engineering, and construction (AEC) industry. However, little attention has been given to the actual professionalization processes of these and the leadership conducted by them when shaping the pace and direction for sustainable development. With the aim to explore how the role of sustainability professionals develops, critical events affecting everyday sustainability work practices were identified. Based on a phenomenological study with focus on eight experienced environmental managers’ life stories, and by applying the theoretical lens of institutional entrepreneurship, the study displays a professionalization process in six episodes. Different critical events both enabled and disabled environmental managers’ opportunity to engage in institutional entrepreneurship. The findings indicate how agency is closely interrelated to temporary discourses in society; they either serve to support change and create new institutional practices towards enhanced sustainability or disrupt change when agency to act is temporarily “lost”. To manage a continually changing environment, environmental managers adopt different strategies depending on the situated context and time, such as finding ambassadors and interorganizational allies, mobilizing resources, creating organizational structures, and repositioning themselves.


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