The effects of air pollution on vegetation from a geographic perspective

2000 ◽  
Vol 24 (1) ◽  
pp. 53-74 ◽  
Author(s):  
Eunmi Chang ◽  
Valery J. Terwilliger
Keyword(s):  
Air Pollution ◽  
Atmospheric Chemistry ◽  
Community Dynamics ◽  
Research Output ◽  
Physical Geography ◽  
Atmospheric Emissions ◽  
The Past ◽  
Short And Long Term ◽  
Holistic Research

Researchers in many fields seek to understand the effects of anthropogenic changes in atmospheric chemistry on vegetation distributions. Particularly important needs for information from a pragmatic perspective include (1) relationships between short-and long-term metabolic consequences of pollutant uptake to vegetation distributions, and (2) indirect influences of air pollution on plant-community dynamics. Biogeography would be the appropriate discipline to make the most powerful contributions to these needs. This does not only mean gathering research output to show a broader picture. In addition, it means introducing new approaches from various fields in order to deepen understanding of spatial phenomena in the past and present, and to better predict patterns of the future. We review developments in both reductionist and holistic research approaches that have effectively enhanced knowledge of how atmospheric emissions affect vegetation. Limitations of these approaches are also discussed. We assume that the contributions of Geographic Information Systems and remote sensing to this line of inquiry are sufficiently appreciated by the bio- and physical geography community to be de-emphasized here. Instead, other approaches better known in more specialized disciplines that are leading to powerful insights from a more restricted sector of the biogeographical community are emphasized. A synthetic core role for physical and biogeography that more fully embraces developments in related disciplines is then proposed.

scholarly journals THE PANDEMIC AND THE ‘ENVIRONMENTALISATION’ OF GEOGRAPHY. AN EPISTEMIC-POLITICAL CHALLENGE

2020 ◽  
Vol 1 (31) ◽  
pp. 65-85
Author(s):  
Marcelo Souza
Keyword(s):  
Social Research ◽  
Physical Geography ◽  
Long Term Effects ◽  
Academic World ◽  
The Past ◽  
Environmental Geography ◽  
Political Challenge ◽  
Short And Long Term ◽  
Epistemic Objects

The purpose of this article is to extract from the COVID-19 pandemic a lesson for geographers: although without intending (or being possible) to simply go back to the past, it is necessary to re-value, nevertheless, the very quintessence of the identity of the geographical discourse, which has been characterised by a way of building epistemic objects that is committed to a dialogue between social research (represented by what we usually call‘human geography’) and natural research (represented by what we usually call ‘physical geography’). This project, presently called ‘environmentalisation,’ does not aim at anything overly ambitious: there is no case here for an exclusionary thesis in the style ‘geography should be this, and nothing else’; in fact, it just defends the idea that an approach such as that of environmental geography, resulting from an attempt at ‘environmentalisation,’ must have its place assured. Environmental geography, being committed to the construction of hybrid epistemic objects, allows us to mobilise the interfaces and knowledge necessary to deal with complex tasks such as the analysis of the short and long-term effects of the pandemic (among many other issues). However, the environmental geography project not only has to deal with intellectual challenges (integrating what knowledge, how and for what purpose?), but, in the end, it must also face political obstacles: the concrete power relations in the academic world and the zeal with which ‘borders’ and ‘territories’ are patrolled and defended, not to mention the resistance of many researchers to leave their thematic and theoretical-methodological comfort zones.

Courting the Youth Vote in 2008: The Obama Effect

2009 ◽  
Vol 5 ◽  
Author(s):  
Lindsey C Bohl
Keyword(s):  
Presidential Elections ◽  
Voter Registration ◽  
The Internet ◽  
The Past ◽  
Several Variables ◽  
High Turnout ◽  
Short And Long Term ◽  
Use Of The Internet ◽  
Youth Vote

This paper examines a few of the numerous factors that may have led to increased youth turnout in 2008 Election. First, theories of voter behavior and turnout are related to courting the youth vote. Several variables that are perceived to affect youth turnout such as party polarization, perceived candidate difference, voter registration, effective campaigning and mobilization, and use of the Internet, are examined. Over the past 40 years, presidential elections have failed to engage the majority of young citizens (ages 18-29) to the point that they became inclined to participate. This trend began to reverse starting in 2000 Election and the youth turnout reached its peak in 2008. While both short and long-term factors played a significant role in recent elections, high turnout among youth voters in 2008 can be largely attributed to the Obama candidacy and campaign, which mobilized young citizens in unprecedented ways.

Increase associated risk of gynaecological cancer due to long-term exposure to high concentration of atmospheric SO2 industrial pollutant

2021 ◽  
pp. 1420326X2110036
Author(s):  
Qian Xu ◽  
Chan Lu ◽  
Rachael Gakii Murithi ◽  
Lanqin Cao
Keyword(s):  
Time Windows ◽  
Air Pollutant ◽  
Gynaecological Cancer ◽  
High Concentration ◽  
The Past ◽  
Short And Long Term ◽  
Using Data ◽  
Air Quality Monitoring Stations ◽  
Control Study

A cohort case–control study was conducted in XiangYa Hospital, Changsha, China, which involved 305 patients and 399 healthy women, from June 2010 to December 2018, to evaluate the association between Chinese women’s short- and long-term exposure to industrial air pollutant, SO2 and gynaecological cancer (GC). We obtained personal and family information from the XiangYa Hospital electronic computer medical records. Using data obtained from the air quality monitoring stations in Changsha, we estimated each woman’s exposure to the industrial air pollutant, sulphur dioxide (SO2), for different time windows, including the past 1, 5, 10 and 15 years before diagnosis of the disease. A multiple logistic regression model was used to assess the association between GC and SO2 exposure. GC was significantly associated with long-term SO2 exposure, with adjusted odds ratio (95% confidence interval) = 1.56 (1.10–2.21) and 1.81 (1.07–3.06) for a per interquartile range increase in the past 10 and 15 years, respectively. Sensitivity analysis showed that different groups reacted in different ways to long-term SO2 exposure. We concluded that long-term exposure to high concentration of industrial pollutant, SO2 is associated with the development of GC. This finding has implications for the prevention and reduction of GC.

Impact of short- and long-term exposure to air pollution on blood pressure: A two-decade population-based study in Tehran

2021 ◽  
Vol 234 ◽  
pp. 113719
Author(s):  
Alireza Khajavi ◽  
Seyed Saeed Tamehri Zadeh ◽  
Fereidoun Azizi ◽  
Robert D. Brook ◽  
Hengameh Abdi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Air Pollution ◽  
Population Based ◽  
Population Based Study ◽  
Short And Long Term

scholarly journals Tree Vitality and Forest Health: Can Tree-Ring Stable Isotopes Be Used as Indicators?

2021 ◽  
Author(s):  
Paolo Cherubini ◽  
Giovanna Battipaglia ◽  
John L. Innes
Keyword(s):  
Air Pollution ◽  
Stable Isotopes ◽  
Tree Ring ◽  
Forest Decline ◽  
Forest Health ◽  
Stress Factors ◽  
Tree Vitality ◽  
The Past ◽  
Physiological Processes

Abstract Purpose of Review Society is concerned about the long-term condition of the forests. Although a clear definition of forest health is still missing, to evaluate forest health, monitoring efforts in the past 40 years have concentrated on the assessment of tree vitality, trying to estimate tree photosynthesis rates and productivity. Used in monitoring forest decline in Central Europe since the 1980s, crown foliage transparency has been commonly believed to be the best indicator of tree condition in relation to air pollution, although annual variations appear more closely related to water stress. Although crown transparency is not a good indicator of tree photosynthesis rates, defoliation is still one of the most used indicators of tree vitality. Tree rings have been often used as indicators of past productivity. However, long-term tree growth trends are difficult to interpret because of sampling bias, and ring width patterns do not provide any information about tree physiological processes. Recent Findings In the past two decades, tree-ring stable isotopes have been used not only to reconstruct the impact of past climatic events, such as drought, but also in the study of forest decline induced by air pollution episodes, and other natural disturbances and environmental stress, such as pest outbreaks and wildfires. They have proven to be useful tools for understanding physiological processes and tree response to such stress factors. Summary Tree-ring stable isotopes integrate crown transpiration rates and photosynthesis rates and may enhance our understanding of tree vitality. They are promising indicators of tree vitality. We call for the use of tree-ring stable isotopes in future monitoring programmes.

The Final Score

2020 ◽  
pp. 201-210
Author(s):  
Steven M. Ortiz
Keyword(s):  
Lived Experience ◽  
Longitudinal Research ◽  
Long Term Effects ◽  
Professional Athlete ◽  
The Past ◽  
Personal Empowerment ◽  
Final Score ◽  
Short And Long Term ◽  
Over Time

The conclusion provides some final observations about the longitudinal research itself and its short- and long-term effects on the women involved. It briefly touches on the few areas of the sport marriage that have seen improvement in the past few decades, discusses the conscious decisions the women make to continue normalizing the career-dominated marriage, and reports on how the marriages fared over time. It also describes the women’s personal empowerment as a result of their participation in the research. Finally, it summarizes the advice and suggested keys to a successful sport marriage that the wives in both studies offered, based on their lived experience. This overview essentially describes how and why the wife of a male professional athlete must adapt to realities if she wants her marriage to survive her husband’s career and retirement.

Serum levels of club cell secretory protein (Clara) and short- and long-term exposure to particulate air pollution in adolescents

2014 ◽  
Vol 68 ◽  
pp. 66-70 ◽  
Author(s):  
Eline B. Provost ◽  
Agnès Chaumont ◽  
Michal Kicinski ◽  
Bianca Cox ◽  
Frans Fierens ◽  
...  
Keyword(s):  
Air Pollution ◽  
Serum Levels ◽  
Secretory Protein ◽  
Club Cell ◽  
Particulate Air Pollution ◽  
Short And Long Term

scholarly journals New Data Record Extends History of Global Air Pollution

Eos ◽  
2017 ◽  
Author(s):  
Sarah Witman
Keyword(s):  
Air Pollution ◽  
Satellite Data ◽  
The Past ◽  
Data Record ◽  
History Of

Researchers extend long-term aerosol records to the past 40 years by combining two existing algorithms to process satellite data over both land and sea.

scholarly journals Rural Poverty and Land Degradation: A Review of the Current State of Knowledge

1998 ◽  
Vol 37 (4II) ◽  
pp. 1053-1070 ◽  
Author(s):  
Sohail Jehangir Malik ◽  
Hina Nazli
Keyword(s):  
World Bank ◽  
Land Degradation ◽  
Rural Poverty ◽  
The Past ◽  
Current State ◽  
The World Bank ◽  
Resource Degradation ◽  
The World ◽  
Short And Long Term

By highlighting the lack of rigorous evidence and calling for a greater understanding of the interaction of the two processes, a recent study [Nelson et al. (1997)] has called into question the strong perception that poverty is both a consequence as well as a cause of resource degradation.1 This perception which is widely held is strongly evident in the writings of the multilateral development agencies such as the World Bank (1990) and IFAD (1992) and exists despite extensive reviews which indicate that the short- and long-term implications of land degradation are not very clear [see Scherr and Yadav (1995)]. Similarly, while knowledge about poverty is expanding rapidly, thanks in large parts to the massive international focus and resources brought to bear on its understanding in the past ten.........................

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