Altered resources, disturbance, and heterogeneity: A framework for comparing urban and non-urban soils

We propose a framework of key concepts useful in understanding how urban soils can contribute to general ecological theory. The major factors that can cause urban soils to be different from soils in non-urban ecosystems are identified and related to the familiar state factor approach. We evaluate directly altered resource availability, and the role of stress in mediating resource availability in urban ecosystems. Modified groundwater and stream flow, and atmospheric deposition of nitrogen and base cations are particularly important resource fluxes to soils in urban ecosystems. Disturbance can be conceptualized in the same way in urban as in non-urban ecosystems. However, in addition to biophysical disturbances familiar to ecologists studying wild lands, demographically and socially mediated changes in ecosystem structure must also be considered. These changes include human migration and population structure, institutional shifts, and the effects of human health. Finally, spatial heterogeneity, including fragmentation and differential connectivity, integrates the effects of resources and disturbance, and has an effect on subsequent resource availability and susceptibility to disturbance. Layers of heterogeneity include not only the geomorphic template, but urban climate, biotic composition, buildings and infrastructure, and demographic-social patterns. The complex layering of natural and social factors that constitute urban heterogeneity permit the continuation of important ecological processes, as well as modify ecological fluxes involving soils. We present a modification of the state factor approach as an expanded framework for the study of urban soils. The understanding of urban soils can contribute to general ecological theory by testing the generality of important ecosystem drivers and their linkage with social processes in an under investigated ecosystem type that is increasing in extent and impact worldwide.

[1]  Jill S. Baron,et al.  Ecosystem Responses to Nitrogen Deposition in the Colorado Front Range , 2000, Ecosystems.

[2]  R. Sequeira,et al.  Potential Effect of Anoplophora glabripennis (Coleoptera: Cerambycidae) on Urban Trees in the United States , 2001, Journal of economic entomology.

[3]  J. Barry.  Rising Tide: The Great Mississippi Flood of 1927 and How It Changed America , 1997 .

[4]  Elinor Ostrom,et al.  Institutions, ecosystems, and sustainability , 2000 .

[5]  Mary Lynn Baeck,et al.  Extraordinary Flood Response of a Small Urban Watershed to Short-Duration Convective Rainfall , 2005 .

[6]  P. White,et al.  The Ecology of Natural Disturbance and Patch Dynamics , 1986 .

[7]  Steward T. A. Pickett,et al.  A hierarchical consideration of causes and mechanisms of succession , 1987 .

[8]  T. Oke.  The Heat Island of the Urban Boundary Layer: Characteristics, Causes and Effects , 1995 .

[9]  Steward T. A. Pickett,et al.  Forest Reorganization: A Case Study in an Old‐Growth Forest Catastrophic Blowdown , 1995 .

[10]  Mary L. Cadenasso,et al.  Dimensions of ecosystem complexity: Heterogeneity, connectivity, and history , 2006 .

[11]  S. Pickett,et al.  A hierarchical consideration of causes and mechanisms of succession , 1987, Vegetatio.

[12]  P. Groffman,et al.  Denitrification potential in urban riparian zones. , 2003, Journal of environmental quality.

[13]  Helmut K. Buechner,et al.  The Human Ecosystem , 1970 .

[14]  N. Grimm,et al.  A distinct urban biogeochemistry? , 2006, Trends in ecology & evolution.

[15]  N. R. Glass,et al.  Atmospheric deposition. , 1980, Science.

[16]  S. Pyne,et al.  Fire: A Brief History , 2001 .

[17]  P. Craul,et al.  Urban soil in landscape design , 1992 .

[18]  D. Hayden.  Building Suburbia: Green Fields and Urban Growth, 1820-2000 , 2003 .

[19]  M. Mcdonnell,et al.  Heavy metal accumulations in forest soils along an urban- rural gradient in Southeastern New York, USA , 1991 .

[20]  Martin V. Melosi,et al.  The Sanitary City: Urban Infrastructure in America from Colonial Times to the Present , 1999 .

[21]  J. Cermák.  Wind climate in cities , 1995 .

[22]  Carl Smith,et al.  Urban Disorder and the Shape of Belief: The Great Chicago Fire, the Haymarket Bomb, and the Model Town of Pullman , 1995 .

[23]  A. Lugo,et al.  Ecosystem Management in the Context of Large, Infrequent Disturbances , 1998, Ecosystems.

[24]  Joel Garreau.  Edge City: Life on the New Frontier , 1991 .

[25]  M. Morrison,et al.  The Ecology and Evolutionary History of an Emergent Disease: Hantavirus Pulmonary Syndrome , 2002 .

[26]  A. Troy,et al.  Data and Methods Comparing Social Structure and Vegetation Structure of Urban Neighborhoods in Baltimore, Maryland , 2006 .

[27]  Chi Yung Jim,et al.  Urban soil characteristics and limitations for landscape planting in Hong Kong , 1998 .

[28]  James Li,et al.  Environmental road and lot drainage designs: alternatives to the curb-gutter-sewer system , 1998 .

[29]  J. Farley,et al.  Chapter 11 – Quality of Life and the Distribution of Wealth and Resources , 2002 .

[30]  I. Burke,et al.  Carbon fluxes, nitrogen cycling, and soil microbial communities in adjacent urban, native and agricultural ecosystems , 2005 .

[31]  L. Band,et al.  Nitrogen input from residential lawn care practices in suburban watersheds in Baltimore county, MD , 2004 .

[32]  W. Zipperer,et al.  Urban ecological systems: linking terrestrial ecological, physical, and socioeconomic components of metropolitan areas , 2001 .

[33]  W. Turechek,et al.  Short- and long-term effects of site factors on net N-mineralization and nitrification rates along an urban-rural gradient , 2001, Urban Ecosystems.

[34]  Viesturs Melecis,et al.  Long-Term Ecological Research in Latvia , 2005 .

[35]  M. Gottdiener.  The New Urban Sociology , 1993, The New Urban Sociology.

[36]  K. Weathers,et al.  A Framework for a Theory of Ecological Boundaries , 2003 .

[37]  Mary L. Cadenasso,et al.  Biocomplexity in coupled natural-human systems : A multidimensional framework , 2005 .

[38]  J. Meyer,et al.  Streams in the Urban Landscape , 2001 .

[39]  M. Fischetti,et al.  Drowning New Orleans. , 2001, Scientific American.

[40]  S. Pickett,et al.  Soil Characteristics of Oak Stands along an Urban‐Rural Land‐Use Gradient , 1995 .

[41]  Sven Erik Jørgensen,et al.  Understanding and solving environmental problems in the 21st century : toward a new, integrated hard problem science , 2002 .

[42]  R. Pouyat,et al.  Environmental effects of forest soil-invertebrate and fungal densities in oak stands along an urban-rural land use gradient , 1994 .

[43]  H. Mielke,et al.  Soil is an important pathway of human lead exposure. , 1998, Environmental health perspectives.

[44]  Gordon M. Heisler,et al.  The tale of two climates-Baltimore and Phoenix urban LTER sites , 2000 .

[45]  B. Entwisle,et al.  Population and Environment in the U.S. Great Plains , 2005 .

[46]  Eric Klinenberg,et al.  Heat Wave: A Social Autopsy of Disaster in Chicago , 2002 .

[47]  C. Gries,et al.  Socioeconomics drive urban plant diversity , 2003, Proceedings of the National Academy of Sciences of the United States of America.

[48]  J. Morgan Grove,et al.  A social ecology approach to understanding urban ecosystems and landscapes , 2003 .

[49]  Grady Clay,et al.  The Victorian City: Images and Realities@@@The City in the Ancient World@@@Close-Up: How to Read the American City , 1974 .

[50]  J. Morgan Grove,et al.  A social ecology approach and applications of urban ecosystem and landscape analyses: a case study of Baltimore, Maryland , 1997, Urban Ecosystems.

[51]  Steward T. A. Pickett,et al.  Structure of theory in vegetation science , 1989 .

[52]  D. Coleman,et al.  Fundamentals of Soil Ecology , 1996 .

[53]  David M. Theobald,et al.  Placing exurban land‐use change in a human modification framework , 2004 .

[54]  Lawrence E. Band,et al.  Down by the riverside: urban riparian ecology , 2003 .

[55]  Michael Hough,et al.  Cities and natural process , 1994 .

[56]  S. Pickett,et al.  Forest-Landscape Structure along an Urban-To-Rural Gradient* , 1995, The Professional Geographer.

[57]  B. Entwisle,et al.  Population, Land Use, and Environment , 2005 .

[58]  Steward T. A. Pickett,et al.  The ecological concept of disturbance and its expression at various hierarchical levels , 1989 .

[59]  T. Dawson,et al.  Urbanization effects on tree growth in the vicinity of New York City , 2003, Nature.

[60]  Gary E. Machlis,et al.  The human ecosystem Part II: Social indicators in ecosystem management , 1997 .

[61]  J. Hartman,et al.  Environmental determinants of Phragmites australis expansion in a New Jersey salt marsh : an experimental approach , 2000 .

[62]  William R. Effland,et al.  The genesis, classification, and mapping of soils in urban areas , 1997, Urban Ecosystems.

[63]  Karen S. Hollweg,et al.  Understanding Urban Ecosystems: A New Frontier for Science and Education , 2002 .

[64]  Peter M. Groffman,et al.  Watersheds in Baltimore, Maryland: Understanding and Application of Integrated Ecological and Social Processes , 2009 .

[65]  Judy Kuriansky Special Issue Co-editor.  Introduction to this Special Issue , 2009 .

[66]  D. W. MacFarlane,et al.  Characteristics and distribution of potential ash tree hosts for emerald ash borer , 2005 .

[67]  Steward T. A. Pickett,et al.  The Ecology of Natural Disturbance and Patch Dynamics , 1985 .

[68]  Jean-Louis Morel,et al.  Urban Soil Management: a Growing Concern , 2000 .

[69]  J. Morgan Grove,et al.  Predicting Opportunities for Greening and Patterns of Vegetation on Private Urban Lands , 2007, Environmental management.

[70]  J. Kolasa,et al.  Structure of theory in vegetation science , 1989, Vegetatio.

[71]  Nancy B. Grimm,et al.  An Ecosystem Approach to Understanding Cities: Familiar Foundations and Uncharted Frontiers , 2003 .

[72]  N. Grimm,et al.  Integrated Approaches to Long-TermStudies of Urban Ecological Systems , 2000 .

[73]  J. P. Collins,et al.  A New Urban Ecology , 2000, American Scientist.

[74]  William H. McDowell,et al.  Nitrogen Saturation in Temperate Forest Ecosystems , 1998 .

[75]  Eugene P. Odum,et al.  THE GRANITE GARDEN: URBAN NATURE AND HUMAN DESIGN , 1984, Landscape Journal.

[76]  Csaba Csuzdi,et al.  Invasive earthworm species and nitrogen cycling in remnant forest patches , 2006 .

[77]  N. McIntyre,et al.  Urban ecology as an interdisciplinary field: differences in the use of “urban” between the social and natural sciences , 2004, Urban Ecosystems.

[78]  Lawrence E. Band,et al.  Beyond Urban Legends: An Emerging Framework of Urban Ecology, as Illustrated by the Baltimore Ecosystem Study , 2008 .

[79]  S. Winchester.  A Crack in the Edge of the World: America and the Great California Earthquake of 1906 , 2005 .

[80]  M. L. Cadenasso,et al.  Biocomplexity in Coupled Natural–Human Systems: A Multidimensional Framework , 2004, Ecosystems.

[81]  Simon Winchester,et al.  Krakatoa: the Day the World Exploded, 27 August 1883 , 2003 .

[82]  Sherry Olson,et al.  Baltimore: The Building of an American City , 1980 .

[83]  N. Brokaw,et al.  Earthquake-Caused Landslides: A Major Disturbance to Tropical Forests , 1979, Science.

[84]  Eugene S. Schweig,et al.  THE -ENIGMA OF THE NEW MADRID EARTHQUAKES OF 1811-1812 , 1996 .

[85]  G. Lovett,et al.  Atmospheric deposition to oak forests along an urban - rural gradient. , 2000 .

[86]  M. L. Cadenasso,et al.  Characterization of Households and its Implications for the Vegetation of Urban Ecosystems , 2006, Ecosystems.

[87]  P. Groffman,et al.  The urban stream syndrome: current knowledge and the search for a cure , 2005, Journal of the North American Benthological Society.

[88]  Christopher G. Boone,et al.  Obstacles to Infrastructure Provision: The Struggle to Build Comprehensive Sewer Works in Baltimore , 2003 .

[89]  G. Likens,et al.  Technical Report: Human Alteration of the Global Nitrogen Cycle: Sources and Consequences , 1997 .

[90]  R. Riemann.  Pilot Inventory of FIA plots traditionally called `nonforest' , 2003 .

[91]  William R. Burch,et al.  The human ecosystem Part I: The human ecosystem as an organizing concept in ecosystem management , 1997 .

[92]  D. Nowak,et al.  Differences in Monterey pine pest populations in urban and natural forests , 1992 .

[93]  S. Pickett,et al.  Ecosystem Structure and Function along Urban‐Rural Gradients: An Unexploited Opportunity for Ecology , 1990 .

[94]  B. Wilkinson.  Humans as geologic agents: A deep-time perspective , 2005 .

[95]  G. McDonogh,et al.  The Cultural Meaning of Urban Space , 1993 .

[96]  Karen C. Rice,et al.  The Urban Environmental Gradient: Anthropogenic Influences on the Spatial and Temporal Distributions of Lead and Zinc in Sediments , 2000 .

[97]  R. Pouyat,et al.  Soil Chemical and Physical Properties That Differentiate Urban Land-Use and Cover Types , 2007 .

[98]  N. Grimm,et al.  Integrated Approaches to Long-TermStudies of Urban Ecological Systems , 2000 .

[99]  O. Gilbert,et al.  Urban Vegetation Research@@@Urban Ecology: Plants and Plant Communities in Urban Environments. , 1991 .