Impact of Urbanization on Environment Mohit Singh Rai Student of B
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Effects of Eutrophication on Stream Ecosystems
EFFECTS OF EUTROPHICATION ON STREAM ECOSYSTEMS Lei Zheng, PhD and Michael J. Paul, PhD Tetra Tech, Inc. Abstract This paper describes the effects of nutrient enrichment on the structure and function of stream ecosystems. It starts with the currently well documented direct effects of nutrient enrichment on algal biomass and the resulting impacts on stream chemistry. The paper continues with an explanation of the less well documented indirect ecological effects of nutrient enrichment on stream structure and function, including effects of excess growth on physical habitat, and alterations to aquatic life community structure from the microbial assemblage to fish and mammals. The paper also dicusses effects on the ecosystem level including changes to productivity, respiration, decomposition, carbon and other geochemical cycles. The paper ends by discussing the significance of these direct and indirect effects of nutrient enrichment on designated uses - especially recreational, aquatic life, and drinking water. 2 1. Introduction 1.1 Stream processes Streams are all flowing natural waters, regardless of size. To understand the processes that influence the pattern and character of streams and reduce natural variation of different streams, several stream classification systems (including ecoregional, fluvial geomorphological, and stream order classification) have been adopted by state and national programs. Ecoregional classification is based on geology, soils, geomorphology, dominant land uses, and natural vegetation (Omernik 1987). Fluvial geomorphological classification explains stream and slope processes through the application of physical principles. Rosgen (1994) classified stream channels in the United States into seven major stream types based on morphological characteristics, including entrenchment, gradient, width/depth ratio, and sinuosity in various land forms. -
Family Planning and the Environment
FAMILY PLANNING AND THE ENVIRONMENT STABILIZING POPULATION WOULD HELP SUSTAIN THE PLANET Because everyone counts ABOUT HALF THE EARTH’s biological people’s needs and that face the greatest production capacity has already been di- population growth. verted to human use. Life-supporting eco- z Since the 1960s, fertility in de- systems are affected everywhere by the veloping countries has been reduced planet’s 6.7 billion people, which is pro- from an average of six births per jected to reach at least 9.2 billion by 2050. woman to three, thanks primarily to The links between population the use of contraceptives. However, UNFPA, the United Nations and environmental quality are com- in 56 developing countries, the poorest plex and varied. Understanding them women still average six births, compared Population Fund, is an requires knowledge of consumption rates to 3.2 for the wealthiest. that differ between the rich and the poor, international development z The wealthiest countries, with less than of new and old technologies, of resource 20 per cent of earth’s population and the agency that promotes the extraction and restoration, and of the dy- slowest population growth, account for 86 namics of population growth and migration. right of every woman, man percent of natural resource consumption– Humans are depleting natural re- much of it wasteful–and produce the ma- and child to enjoy a life of sources, degrading soil and water, and cre- jority of the pollution and carbon dioxide. ating waste at an alarming rate, even as health and equal opportunity. z At the other extreme, the depletion of new technology raises crop yields, con- natural resources is occurring most rapidly serves resources and cleans up pollution. -
The Effects of Urbanization on Natural Resources in Jamaica
Doneika Simms. The Effects of Urbanization on Natural Resources in Jamaica . 44th ISOCARP Congress 2008 THE EFFECTS OF URBANIZATION ON NATURAL RESOURCES IN JAMAICA BACKGROUND OF STUDY AREA Jamaica is the third largest island in the Caribbean, comprising of approximately 4,400 sq. miles or 10,991 square kilometers in area. Over two-thirds of the country’s land resources consist of a central range of hills and mountains, with the Blue Mountain Range being the most significant, ranging over 6000 ft. in height (GOJ, 1994; Clarke, 2006). This means that urban development in areas such as the capital city of Kingston and other principal towns such as Montego Bay and Ocho Rios is limited to the relatively small amount of flat lands most of which has a coastal location (see figure 1). Figure 1 Showing a Map of Jamaica and the Various Cities along the Coast Source: http://www.sangstersrealty.com/jamaica_map.htm Although a significant portion of the terrain is mountainous, in several places the coastal plain extends to form broad embayments. Among these, a dry embankment on the south side of the island known as the Liguanea Plain has been occupied by the city of Kingston. The built-up area of the city spreads over 50 sq. miles and comprises the parish of Kingston and the suburban section of St. Andrew. The city is located on the eastern side of the island which is sheltered from the north-east trade winds by the Blue Mountains, hence being ideal for the major seaport of the country- the Kingston Harbour (Clarke, 2006). -
Urbanization As a Threat to Biodiversity: Trophic Theory, Economic Geography, and Implications for Conservation Land Acquisition
Proceedings of a Symposium at the Society for Conservation Biology 2004 Annual Meeting URBANIZATION AS A THREAT TO BIODIVERSITY: TROPHIC THEORY, ECONOMIC GEOGRAPHY, AND IMPLICATIONS FOR CONSERVATION LAND ACQUISITION Brian Czech1 ABSTRACT—Habitat loss is often cited as the primary cause of species endangerment in the United States, followed by invasive species, pollution, and direct take. Urbanization, one type of habitat loss, is the leading cause of species endangerment in the contiguous United States and entails a relatively thorough transformation from the “economy of nature” to the human economy. Principles of economic geography indicate that urbanization will continue as a function of economic growth, while principles of conservation biology indicate that the most thorough competitive exclusion occurs in urban areas. These findings suggest the need for an ecologically macroeconomic approach to conservation land acquisition strategies. “Habitat loss” is often cited as the primary cause of species these types of habitat loss are considered separate causes of endangerment in the United States, followed by invasive species endangerment, invasive species are identified as the species, pollution, disease, and direct take. However, vari- leading cause of species endangerment in the United States, ous types of habitat loss are readily identified, such as log- including Hawaii and Puerto Rico (Czech et al. 2000). On ging, mining, agriculture, and urbanization (table 1). When the mainland United States, however, urbanization is the Table 1.— Causes of endangerment for the first 877 (of the current 1,262) species in the United States and Puerto Rico classified as threatened or endangered by the United States Fish and Wildlife Service (from Czech et al. -
People and the Planet: Lessons for a Sustainable Future. INSTITUTION Zero Population Growth, Inc., Washington, D.C
DOCUMENT RESUME ED 409 188 SE 060 352 AUTHOR Wasserman, Pamela, Ed. TITLE People and the Planet: Lessons for a Sustainable Future. INSTITUTION Zero Population Growth, Inc., Washington, D.C. REPORT NO ISBN-0-945219-12-1 PUB DATE 96 NOTE 210p. AVAILABLE FROM Zero Population Growth, Inc., 1400 16th Street N.W., Suite 320, Washington, DC 20036, e-mail: [email protected] PUB TYPE Guides Classroom Teacher (052) EDRS PRICE MF01/PC09 Plus Postage. DESCRIPTORS *Conservation (Environment); Elementary Secondary Education; *Environmental Education; Natural Resources; Pollution; Population Trends; Sustainable Development; Teaching Guides IDENTIFIERS *Environmental Action; Environmental Awareness ABSTRACT This activity guide is designed to develop students' understanding of the interdependence of people and the environment as well as the interdependence connecting members of the global family. It is both an environmental education curriculum and a global studies resource suitable for middle school science, social studies, math, language arts, and family life education classrooms. The readings and activities contained in this book are designed to broaden students' knowledge of trends and connections among population change, natural resource use, global economics, gender equity, and community health. This knowledge combined with the critical thinking skills developed in each activity will help students explore their roles as global citizens and environmental stewards. The book is divided into four parts: (1) Understanding Population Dynamics;(2) People, Resources, and the Environment; (3) Issues for the Global Family; and (4) You and Your Community. Also included is a list of activities grouped by themes including air/water pollution and climate change, carrying capacity, environmental and social ethics, family size decisions, future studies, land use issues, natural resource use, population dynamics and trends, resource distribution/inequities, solid waste management, and sustainability. -
Safe Use of Wastewater in Agriculture Safe Use of Safe Wastewater in Agriculture Proceedings No
A UN-Water project with the following members and partners: UNU-INWEH Proceedings of the UN-Water project on the Safe Use of Wastewater in Agriculture Safe Use of Wastewater in Agriculture Wastewater Safe of Use Proceedings No. 11 No. Proceedings | UNW-DPC Publication SeriesUNW-DPC Coordinated by the UN-Water Decade Programme on Capacity Development (UNW-DPC) Editors: Jens Liebe, Reza Ardakanian Editors: Jens Liebe, Reza Ardakanian (UNW-DPC) Compiling Assistant: Henrik Bours (UNW-DPC) Graphic Design: Katja Cloud (UNW-DPC) Copy Editor: Lis Mullin Bernhardt (UNW-DPC) Cover Photo: Untited Nations University/UNW-DPC UN-Water Decade Programme on Capacity Development (UNW-DPC) United Nations University UN Campus Platz der Vereinten Nationen 1 53113 Bonn Germany Tel +49-228-815-0652 Fax +49-228-815-0655 www.unwater.unu.edu [email protected] All rights reserved. Publication does not imply endorsement. This publication was printed and bound in Germany on FSC certified paper. Proceedings Series No. 11 Published by UNW-DPC, Bonn, Germany August 2013 © UNW-DPC, 2013 Disclaimer The views expressed in this publication are not necessarily those of the agencies cooperating in this project. The designations employed and the presentation of material throughout this publication do not imply the expression of any opinion whatsoever on the part of the UN, UNW-DPC or UNU concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Unless otherwise indicated, the ideas and opinions expressed by the authors do not necessarily represent the views of their employers. -
Spatiotemporal Variability of Urban Heat Island: Influence of Urbanization on Seasonal Pattern of Land Surface Temperature in the Metropolitan Region of Belém, Brazil
Scientific Article doi: 10.1590/2175-3369.013.e20200260 Spatiotemporal variability of urban heat 3369 island: Influence of urbanization on - seasonal pattern of land surface temperature in the Metropolitan Region ISSN 2175 of Belém, Brazil Variabilidade espaço-temporal das ilhas de calor urbano: Influência da urbanização no padrão sazonal da temperatura da superfície terrestre na Região Metropolitana de Belém, Brasil Licenciadosob uma Licença Creative Commons Jefferson Inayan de Oliveira Souto [a] , Julia Clarinda Paiva Cohen [a] [a] Universidade Federal do Pará, Instituto de Geociências, Belém, PA, Brasil How to cite: Souto, J. I. O., & Cohen, J. C. P. (2021). Spatiotemporal variability of urban heat island: Influence of urbanization on seasonal pattern of land surface temperature in the Metropolitan Region of Belém, Brazil. urbe. Revista Brasileira de Gestão Urbana, v. 13, e20200260. https://doi.org/10.1590/2175-3369.013.e20200260 Abstract Cities experience the extensive urban heat island effect (UHI), which continue to pose challenges for humanity's increasingly urban population, where tropical cities have experienced a continued and rapid urbanization process in the past few decades. We present the evolution of surface UHI and its controlling factors in the Metropolitan Region of Belém, over the last 16 years (2003–2018), which has experienced unique consolidated economic growth and urban transformation under wet equatorial climate. We incorporate MODIS and Landsat satellite data and evaluate statistical techniques for estimates the variation in the land surface temperature (LST) during two seasons: wet season and dry season. Our result revealed that the regions of fast urbanization resulted in a decrease of normalized difference vegetation index and increase of LST. -
Land Degradation
SPM4 Land degradation Coordinating Lead Authors: Lennart Olsson (Sweden), Humberto Barbosa (Brazil) Lead Authors: Suruchi Bhadwal (India), Annette Cowie (Australia), Kenel Delusca (Haiti), Dulce Flores-Renteria (Mexico), Kathleen Hermans (Germany), Esteban Jobbagy (Argentina), Werner Kurz (Canada), Diqiang Li (China), Denis Jean Sonwa (Cameroon), Lindsay Stringer (United Kingdom) Contributing Authors: Timothy Crews (The United States of America), Martin Dallimer (United Kingdom), Joris Eekhout (The Netherlands), Karlheinz Erb (Italy), Eamon Haughey (Ireland), Richard Houghton (The United States of America), Muhammad Mohsin Iqbal (Pakistan), Francis X. Johnson (The United States of America), Woo-Kyun Lee (The Republic of Korea), John Morton (United Kingdom), Felipe Garcia Oliva (Mexico), Jan Petzold (Germany), Mohammad Rahimi (Iran), Florence Renou-Wilson (Ireland), Anna Tengberg (Sweden), Louis Verchot (Colombia/ The United States of America), Katharine Vincent (South Africa) Review Editors: José Manuel Moreno (Spain), Carolina Vera (Argentina) Chapter Scientist: Aliyu Salisu Barau (Nigeria) This chapter should be cited as: Olsson, L., H. Barbosa, S. Bhadwal, A. Cowie, K. Delusca, D. Flores-Renteria, K. Hermans, E. Jobbagy, W. Kurz, D. Li, D.J. Sonwa, L. Stringer, 2019: Land Degradation. In: Climate Change and Land: an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems [P.R. Shukla, J. Skea, E. Calvo Buendia, V. Masson-Delmotte, H.-O. Pörtner, D. C. Roberts, P. Zhai, R. Slade, S. Connors, R. van Diemen, M. Ferrat, E. Haughey, S. Luz, S. Neogi, M. Pathak, J. Petzold, J. Portugal Pereira, P. Vyas, E. Huntley, K. Kissick, M. Belkacemi, J. Malley, (eds.)]. In press. -
Population Sampling in European Air Pollution Exposure Study, EXPOLIS: Comparisons Between the Cities and Representativeness of the Samples
Journal of Exposure Analysis and Environmental Epidemiology (2000) 10, 355±364 # 2000 Nature America, Inc. All rights reserved 1053-4245/00/$15.00 www.nature.com/jea Population sampling in European air pollution exposure study, EXPOLIS: comparisons between the cities and representativeness of the samples TUULIA ROTKO,a LUCY OGLESBY,b NINO KUÈ NZLIb AND MATTI J. JANTUNENc aDepartment of Environmental Hygiene, National Public Health Institute, P.O. Box 95, FIN 70701 Kuopio, Finland bUniversity of Basel, Institute of Social and Preventive Medicine, Basel, Switzerland cEU Joint Research Centre, Environment Institute, Air Quality Unit, I-21020 Ispra (VA), Italy A personal air pollution exposure study, EXPOLIS, was accomplished in six European cities among 25- to 55-year-old citizens. In order to compare the exposure results and different microenvironmental concentrations between the cities it is crucial to know the extent and effects of the population bias that has developed in sampling procedure and the sociodemographic characteristics of each measured population sample. In each participating city a random Base sample of 2000 to 3000 individuals was drawn from the census and a Short Questionnaire (SQ) was mailed to them. Two subsamples of the Respondents of the mailed questionnaire were randomly drawn: Diary sample for 48-h time±microenvironment±activity diary and extensive exposure questionnaires, and Exposure sample for the same plus personal exposure and microenvironmental monitoring. Significant differences existed between the EXPOLIS cities in the population-sampling procedure. Population-sampling bias was evaluated by comparing the Respondents with the total city populations. The share of women and individuals with more than 14 years of education is higher among the Respondents than the overall population except in Athens. -
Wildland Fire in Ecosystems: Effects of Fire on Fauna
United States Department of Agriculture Wildland Fire in Forest Service Rocky Mountain Ecosystems Research Station General Technical Report RMRS-GTR-42- volume 1 Effects of Fire on Fauna January 2000 Abstract _____________________________________ Smith, Jane Kapler, ed. 2000. Wildland fire in ecosystems: effects of fire on fauna. Gen. Tech. Rep. RMRS-GTR-42-vol. 1. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 83 p. Fires affect animals mainly through effects on their habitat. Fires often cause short-term increases in wildlife foods that contribute to increases in populations of some animals. These increases are moderated by the animals’ ability to thrive in the altered, often simplified, structure of the postfire environment. The extent of fire effects on animal communities generally depends on the extent of change in habitat structure and species composition caused by fire. Stand-replacement fires usually cause greater changes in the faunal communities of forests than in those of grasslands. Within forests, stand- replacement fires usually alter the animal community more dramatically than understory fires. Animal species are adapted to survive the pattern of fire frequency, season, size, severity, and uniformity that characterized their habitat in presettlement times. When fire frequency increases or decreases substantially or fire severity changes from presettlement patterns, habitat for many animal species declines. Keywords: fire effects, fire management, fire regime, habitat, succession, wildlife The volumes in “The Rainbow Series” will be published during the year 2000. To order, check the box or boxes below, fill in the address form, and send to the mailing address listed below. -
(Nox) Emission Air Pollution Density in Major Metropolitan Areas of the United States
Population Density, Traffic Density and Nitrogen Oxides (NOx) Emission Air Pollution Density in Major Metropolitan Areas of the United States This report summarizes the latest Environmental Protection Agency (EPA) data on the density of daily traffic densities and road vehicle nitrogen oxides (NOx) emissions densities by counties within the 51 metropolitan areas with more than 1 million population in the United States as of 2010. The measures used are described under "The Measures," below. The EPA data indicates a strong association both between: Higher population densities and higher traffic densities (Figure 1). Higher population densities and higher road vehicle nitrogen oxides (NOx) emission intensities (Figure 2) In both cases, the relationships are statistically significant at the 99 percent level of confidence. These relationships are summarized by population density category in Table 1, which includes total daily road vehicle travel density (vehicle miles per square mile), annual nitrogen oxides (NOx) emission intensity and a comparison to the average of all of the metropolitan area counties. It is important to recognize that air pollution emissions alone are not a fully reliable predictor of air quality, though all things being equal, higher air pollution emissions will lead to less healthful air. This issue is described further under "Caveats." Below. 1 Density & Roadway Travel ROAD VEHICLES: MAJOR METROPOLITAN COUNTIES 600,000 R2 = 0.720 Mile 500,000 99% confidence level Square 400,000 per 300,000 (Miles) Travel 200,000 422 Counties in 51 Vehicle Metropolitan Areas 100,000 Over 1,000,000 Daily 0 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 Population Density (Population per Square Mile): 2006‐2007 Figure 1 Density & Nitrogen Oxides (NOx) Emissions ROAD VEHICLES: MAJOR METROPOLITAN COUNTIES 200 2 180 R = 0.605 Mile 99% confidence 160 Level. -
E/CONF.60/19: World Population Plan of Action
19-30 August 1974 World Population Plan of Action UNITED NATIONS POPULATION INFORMATION NETWORK (POPIN) UN Population Division, Department of Economic and Social Affairs, with support from the UN Population Fund (UNFPA) World Population Plan of Action The electronic version of this document is being made available by the United Nations Population Information Network (POPIN) Gopher of the Population Division, Department for Economic and Social Information and Policy Analysis. ***************************************************************** WORLD POPULATION PLAN OF ACTION The World Population Conference, Having due regard for human aspirations for a better quality of life and for rapid socio-economic development, Taking into consideration the interrelationship between population situations and socio-economic development, Decides on the following World Population Plan of Action as a policy instrument within the broader context of the internationally adopted strategies for national and international progress: A. BACKGROUND TO THE PLAN 1. The promotion of development and improvement of quality of life require co-ordination of action in all major socio-economic fields including that of population, which is the inexhaustible source of creativity and a determining factor of progress. At the international level a number of strategies and programmes whose http://www.un.org/popin/icpd/conference/bkg/wppa.html 1/46 World Population Plan of Action explicit aim is to affect variables in fields other than population have already been formulated. These