Development and use of rapid reconnaissance soil inventories for reclamation of urban brownfields: A Vancouver, British Columbia, case study

2012 ◽  
Vol 92 (1) ◽  
pp. 191-201 ◽  
Author(s):  
Melissa A. Iverson ◽  
Emma P. Holmes ◽  
A. A. Bomke

Iverson, M. A., Holmes, E. P. and Bomke, A. A. 2012. Development and use of rapid reconnaissance soil inventories for reclamation of urban brownfields: A Vancouver, British Columbia case study. Can. J. Soil Sci. 92: 191–201. As a result of suburban growth and abandonment and relocation of industrial facilities, vacant lots are becoming common in most urban centers in North America. These neglected, derelict, and often contaminated brownfields are receiving attention as a public liability since they are not productive and detract from the environmental quality of urban centres. Soils at these urban sites have been negatively impacted by anthropogenic activities. A prerequisite to effective reclamation is knowledge about the soil conditions on these sites. Most urban areas do not have soil survey or soil inventory information. Soil physical factors such as compaction are common problems at sites and are difficult and expensive to modify. A soil inventory provides the initial information for remediation and reclamation strategies that incorporate inherent soil properties. A soil inventory was conducted in Vancouver, British Columbia, by interpreting and extrapolating surficial geologic and regional soil survey information. The resulting soil inventory is presented as a series of topographical cross sections through the city, and displays information to stakeholders by reference to cultural features including street addresses. The soil inventory is compiled into soil management groups for general descriptions of the soil units and for initial recommendation for reclamation strategies.

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 703
Author(s):  
Astrid Vannoppen ◽  
Jeroen Degerickx ◽  
Anne Gobin

Attractive landscapes are diverse and resilient landscapes that provide a multitude of essential ecosystem services. The development of landscape policy to protect and improve landscape attractiveness, thereby ensuring the provision of ecosystem services, is ideally adapted to region specific landscape characteristics. In addition, trends in landscape attractiveness may be linked to certain policies, or the absence of policies over time. A spatial and temporal evaluation of landscape attractiveness is thus desirable for landscape policy development. In this paper, landscape attractiveness was spatially evaluated for Flanders (Belgium) using landscape indicators derived from geospatial data as a case study. Large local differences in landscape quality in (i) rural versus urban areas and (ii) between the seven agricultural regions in Flanders were found. This observed spatial variability in landscape attractiveness demonstrated that a localized approach, considering the geophysical characteristics of each individual region, would be required in the development of landscape policy to improve landscape quality in Flanders. Some trends in landscape attractiveness were related to agriculture in Flanders, e.g., a slight decrease in total agricultural area, decrease in dominance of grassland, maize and cereals, a decrease in crop diversity, sharp increase in the adoption of agri-environmental agreements (AEA) and a decrease in bare soil conditions in winter. The observed trends and spatial variation in landscape attractiveness can be used as a tool to support policy analysis, assess the potential effects of future policy plans, identify policy gaps and evaluate past landscape policy.


Author(s):  
VI Dzhurik ◽  
T Dugarmaa ◽  
SP Serebrennikov ◽  
Ts Batsaikhan

The first approximation approach to seismic zoning of the areas adjacent to the Mongolia-Siberian region has been followed by the example of Erdenet town. The grounds have been given for problematic stages of working: study of some regular trends of seismic setting and current level of initial seismicity of the area; identification of seismic activity areas and assessment of their seismic potential; seismic modeling of sites with the most typical soil conditions; model theoretical calculating of basic parameters of seismic effects and model zoning of the investigated area. Technically, the stages of Erdenet town case study can serve as a basis for seismic zoning of the areas of interest that are adjacent to the Mongolia-Siberian region.The work has been done under financial support of RFBR project No. 07-05- 90111.DOI: http://dx.doi.org/10.5564/pmas.v0i4.38Proceedings of the Mongolian Academy of Sciences 2007 No 4 pp.17-35


2021 ◽  
Vol 31 (3) ◽  
pp. 74-79
Author(s):  
M. M. Radomska ◽  
I. V. Horobtsov ◽  
L. M. Cherniak ◽  
O. M. Tykhenko

The impacts of manmade structures on wildlife are often underestimated due to misbelieve that wild animals avoid living in close proximity to any kind of technogenic object. However, such objects may offer a range of benefits to animals and thus become points of attraction, being still a source of hazards for these living organisms. The airports are considered to be dangerous industrial facilities for they create chemical and physical pollution, as well as host a variety of biohazards, originating from transported items and dense groups of population. Meanwhile they are often located outside the urban areas in previously pristine areas, specially allocated for this purpose and animals, whose habitat they occupy undergo all these impacts equally with passengers and staff. The aim of the research is to conduct differential analysis of physical factors of influence within the airport impact area and evaluate the negative trends for exposed animals. The physical factors were divided into the physical objects and physical fields. The assessment of these factors was based on the data obtained using special metering equipment for measuring the level of noise, light and electro-magnetic pollution, while the intensity of visual pollution and fragmentation effects by airport infrastructure were evaluated using qualitative approach. The airport facilities itself and ground access infrastructure are showed as the causes of habitat destruction by barrier and edge effects, as well as structural transformations of landscapes, in particular, relief and phytocenosis. The impact of physical fields coming from the airport territory is formed by light, vibration and electro-magnetic pollution. The intensity of considered factors is different, but the sensitivity of laboratory animals to these factors is high enough to cause a range of effects. However, the methods for mitigation of some other airport impacts can exacerbate the value of the existing sources of impacts. The light pollution is measured and defined as the most significant and damaging. Thus, there is a clear need to pay attention to the interactions between an airport and wildlife to reduce the intensity of negative effects. The predicted and described effects for wildlife could be very diverse, but they need verification by field surveys in the impacts areas of airports is highlighted.


2019 ◽  
Vol 2 ◽  
pp. 1-8
Author(s):  
Bhanwar Vishvendra Raj Singh ◽  
Anjan Sen

<p><strong>Abstract.</strong> Nowadays, biodiversity is very rapidly diminishing from all over the globe due to unsustainable practices of natural resource by anthropogenic activities. It is an unhealthy for ecosystem services. In the biodiversity, tiger is an icon of healthy wildlife, which is known as a vital factor for maintaining universal food chain system. The research paper is focused on “Mapping of Physical Vulnerability of Tiger Habitat Areas: A Case Study of Tiger corridor of Rajasthan, India” it’s a micro level Study based on primary and secondary data through GIS mapping, habitat ranking and Q-Q plot. All five physical factors to inter-connect and overlay of the ranking of tiger habitats for the physical vulnerability. Especially, core and periphery of vulnerability have obtained from the Multispectral images from ETM and ETM+ sensors of Landsat and LISS-III and AWiFS sensors of Resourcesat-satellites. The study examines the spatial pattern physical vulnerability and suitability of tiger corridor of Rajasthan. Tiger Landscape change within all ecological zones has been evaluated. The Landsat TM and ETM imagery has been used to produce LULC classification maps for both areas utilising a hybrid supervised/unsupervised methods. LULC changes are measured using landscape metrics and change maps created by post-classification through change detection. Using all the raster maps and the final change detection of the reserve has been done through spatial analysis using the raster calculator tool in ArcGIS, Erdas, Statistical tool and MS Excel 13. The study comes out with physical vulnerability in core and periphery areas of the tiger corridor. The research addressed vulnerability of tiger habitat, human encroachment, impact on tiger habitat, intervene of domestic animals, and the migration in core and periphery areas, finally, the situation of physical vulnerability would be alarming for biodiversity of tiger corridor, specially buffer areas.</p>


2021 ◽  
Vol 13 (15) ◽  
pp. 8575
Author(s):  
Félix Escolano Sánchez ◽  
Francisco Parra Idreos ◽  
Manuel Bueno Aguado

Over the coming years, developments of large urban areas are expected, many of them on plots where soil conditions may not be the most suitable for building. This is the case of plots that previously have been used for dumping anthropic fill deposits. The term anthropic fill included a large variety of materials, all of them related with human activity; but this paper is mainly focused on natural materials extracted from nearby excavations or construction debris that form non-contaminated lands. In a review of literature related to risks, it is observed that in the last 10 years there have been abundant investigations to determine vulnerability in urban areas. However, the risks derived from the presence of anthropic landfills have generally been overlooked. For this reason, there is a real need to quantify construction vulnerability in areas settled on anthropic landfills. A methodology, up to now unknown, must be created to estimate and extrapolate it to any part of the world. The aim is to avoid the likelihood of pathologies appearing in urban areas. Hence, and to address this lack of knowledge, an Integrated Evaluation Model has been developed. Its purpose is to quantify, simply but effectively, the construction vulnerability index in already consolidated areas of historic landfills. The proposed model has been validated in a very popular district of the city of Madrid. Its surface, the number of buildings affected and population involved make it truly representative.


2021 ◽  
Author(s):  
BOGGU JAGAN MOHAN REDDY ◽  
Ganteda Rama Rao ◽  
K. V. B. Ranjitha ◽  
G. Satya S ◽  
Naresh Kumar Katari

Abstract The several stagnant water resources contamination in urban areas mainly caused by anthropogenic activities and as well as pathogenic organisms. The objective of the present study is to determine the chemical contamination in pond water regardingsudden appearance of health problems among the people of certain areas in Eluru, West Godavari District, Andhra Pradesh, India. The results of ICP-MS investigations showed elemental impurities in water samples and physio-chemical parameters of pond water such as pH, TDS, EC, CC , Total Hardness etc., are studied in detailed.


2021 ◽  
Author(s):  
Maria Cerrato-Álvarez ◽  
Conrado Miró-Rodríguez ◽  
Eduardo Pinilla-Gil

Lockdown measures were established in Spain from 14th March 2020, to flatten the pandemic curve of coronavirus disease (COVID-19). The increasingly stringent implementation of these measures has made it possible to assess the effect of anthropogenic activities on the most relevant air pollutants present in ambient air. Whereas most published reports focus on highly polluted urban areas, the present work aims to quantify variations in the levels of NO2, O3 and BTX (benzene, toluene and xylene) due to the COVID-19 lockdown in usually low polluted urban and suburban areas within Extremadura (Spain). Compared to the reference period from 2010 to 2019, significant reductions in NO2 levels occurred in the suburban stations of Badajoz, Cáceres, Mérida, Plasencia and Zafra (–50.4 %, –71.6 %, –55.2 %, –64.6 % and –51.8 %, respectively), likely due to the limitation of road traffic as the primary source of nitrogen oxides (NOx). These percentages of reduction are similar to data reported in high polluted areas. Similarly, O3 levels have decreased slightly by –9.9 % in Badajoz, –9.5 % in Mérida and –18.2 % in the Monfragüe National Park. The reduction in O3 levels may be due to a decrease in NOx limiting atmospheric conditions and the influence of weather conditions (high cloudiness and rainy days) during the lockdown period. No defined trend was observed for VOCs (BTX), probably due to the very low levels of these contaminants, close to the detection limit both during the lockdown and the reference periods.


Author(s):  
Tue Nguyen Dang

This research examines the factors affecting the financial literacy of Vietnamese adults. Using a sample of 266 observations of adults in 2 big cities in Vietnam (Hanoi and Vinh in Nghe An Province), the author evaluates the literacy level of adults in these urban areas. The financial literacy of the interviewed people is low. The multiple regression results show that lower financial literacy levels associate with higher age and married status and higher financial literacy levels associate with higher education, more family members, the person making financial decisions and the person attending a useful financial course. This research also explores the association between financial literacy and financial behaviors of individuals employing logistic models. It is found that higher financial literacy associates with less probability of overspending and higher probability of saving money and careful spending. Higher financial literacy is also found to associate with higher probability of opening a savings account and making various investments. 


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