Urban geochemistry: Sisak in Croatia, a long - lasting historical, urban and industrial city

2016 ◽  
Vol 17 (2) ◽  
pp. 159-163
Author(s):  
Ajka Šorša ◽  
Goran Durn ◽  
Josip Halamić ◽  
Stjepan Husnjak ◽  
Vesnica Garašić ◽  
...  
Keyword(s):  
Urban Geochemistry ◽  
Industrial City

scholarly journals Urban geochemistry and human-impacted imprint of dissolved trace and rare earth elements in a high-tech industrial city, Suzhou

Elem Sci Anth ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Shilin Gao ◽  
Zhuhong Wang ◽  
Qixin Wu ◽  
Wanfa Wang ◽  
Chaochao Peng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Human Activities ◽  
Significant Positive Correlation ◽  
High Tech ◽  
Urban Geochemistry ◽  
Rapid Urbanization ◽  
Positive Correlation ◽  
Industrial City ◽  
Urban Sewage

Due to the rapid urbanization process, the consumption of trace and rare earth elements has dramatically increased. Although some elements have been extensively studied due to their high biological toxicity, most elements are ignored and taken seriously in recent years. Here, we investigated the urban geochemistry, source, and anthropogenic responding factor for 15 trace elements (Cd, Pb, Co, Sn, Cu, Ni, V, As, Mo, Sb, Al, Li, Fe, Zn, and Sr) and rare earth elements in surface water of the Suzhou city. The percentage of anthropogenic gadolinium vary from 46.9% (YCH-2) to 92.8% (WS-2), while the analysis of variance shows that human activities may affect the distribution of Cd, Co, Sn, Ni, As, Li, Fe, and Sr. Three clusters are obtained from the correlation and cluster analysis. The Cluster 1 with a significant positive correlation of Pb, Cd, Gd, Li, Sr, Co, Fe, Ni, and Sn reflecting these elements are dominantly influenced by urban sewage and industrial activities. The Cluster 2 (Zn, Cu, and Al) can be attributed to geologic sources, while the Cluster 3 (V, Mo, As, and Sb) indicate the combined action of agricultural and urban activities. The Gd versus Li plot showed a significant positive correlation, which can be used as a new indicator to trace the anthropogenic impact on urban waters. Overall, this study provides clear evidence that the content and distribution of Gd and Li are deeply affected by human activities in a high-tech industrial city (Suzhou), which can be regarded as emerging elements contaminations.

Mechanisms of Green Development of Urban Agricultural Production in a Large Industrial City

2020 ◽  
Vol 26 (8) ◽  
pp. 823-829
Author(s):  
E. V. Malysh
Keyword(s):  
Food Security ◽  
Urban Agriculture ◽  
Food Supply ◽  
Agricultural Production ◽  
High Tech ◽  
Agricultural Technologies ◽  
Short Supply ◽  
Industrial City ◽  
Self Sufficiency ◽  
Green Development

A city’s potential for food self-sufficiency is expected to increase through the distribution of innovative, high-tech, green agricultural practices of producing food in an urban environment, which can improve the city’s food security due to increased food accessibility in terms of quantity and quality. Aim. Based on the systematization of theoretical approaches and analysis of institutional aspects, the study aims to propose ways to strengthen the city’s food security by improving food supply in urban areas, increasing the socio-economic and environmental sustainability of urban food systems, and changing the diet of urban residents.Tasks. The authors propose methods for the development of urban agricultural production in a large industrial city based on the principles of green economy and outline the range of strategic urban activities aimed at implementing green agricultural production technologies associated with the formation and development of the culture of modern urban agricultural production.Methods. This study uses general scientific methods of cognition to examine the specificity of objectives of strengthening a city’s food security by improving the quality of food supply to the population. Methods of comparison, systems analysis, systematization of information, and the monographic method are also applied.Results. A strategic project for the development of urban agricultural systems through the implementation and green development of advanced urban agricultural technologies is described. Green development mechanisms will create conditions for the city’s self-sufficiency in terms of organic and safe products, functioning of short supply chains, and green urban agriculture.Conclusions. Managing the growth of urban agriculture will promote the use of highly effective, easily controlled, resource-efficient, eco-friendly, weather- and season-independent, multi-format urban agricultural technologies. The study describes actions aimed at creating conditions for stabilizing a city’s high-quality food self-sufficiency with allowance for the growing differentiation of citizen needs.

Coming Back Home to Live and Not Die: A Human Geography of a Working-Class Black Gay Male Navigating the Local Higher Education Pipeline

2021 ◽  
pp. 004208592098729
Author(s):  
Amalia Z. Dache ◽  
Keon M. McGuire
Keyword(s):  
Working Class ◽  
Policy Research ◽  
Human Geography ◽  
Community Based ◽  
Industrial City ◽  
Race And Class ◽  
Gay Male ◽  
Education Pipeline ◽  
Post Industrial ◽  
Narrative Mapping

The purpose of this study is to illustrate how in the span of three decades, a working-class Black gay male college student residing in a post-industrial city navigated college. Through a postcolonial geographic epistemology and theories of human geography, we explore his narrative, mapping the terrain of sexual, race and class dialects, which ultimately led to Marcus’s (pseudonym) completion of graduate school and community-based policy research. Marcus’s educational human geography reveals the unique and complex intersections of masculinity, Blackness and class as identities woven into his experiences navigating the built environment.

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