نتایج جستجو برای: urban ecosystems

تعداد نتایج: 215026  

2017
Tan Chen Qiuhao Huang Miao Liu Manchun Li Shulin Deng Dong Chen

Regional ecosystems have been greatly affected by the rapid expansion of urban areas. In order to explore the impact of land use change on net primary productivity (NPP) in rapidly developing cities during the current urbanization process, we quantified land use change in Liaoning province between 2000 and 2010 using net primary productivity as an indicator of ecosystem productivity and health....

2009
Diane M. Styers Arthur H. Chappelka

Changes in land use disrupt ecosystem patterns and processes and serve as precursors to other biotic and abiotic stressors. Forest ecosystems in the urban core typically differ structurally and functionally from those in rural areas. The overall objective of the study was to determine concentrations of selected air-borne contaminants (N, S, and heavy metals) over space and time and relate these...

2006
Erik Andersson

Ecological research targeting sustainable urban landscapes needs to include findings and methods from many lines of ecological research, such as the link between biodiversity and ecosystem function, the role of humans in ecosystems, landscape connectivity, and resilience. This paper reviews and highlights the importance of these issues for sustainable use of ecosystem services, which is argued ...

2005
Timothy L. Carter Todd C. Rasmussen

Stormwater management has traditionally focused on the use of conveyances to quickly move stormwater runoff from urban centers into nearby rivers, streams, and lakes. The increased flow caused by impervious surface cover (ISC) leads to runoff rates that are amplified by kinematic processes as they travel through the municipality’s stormwater system. Elevated runoff volumes and rates lead to hig...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Robert J Sampson

The environmental fragility of cities under advanced urbanization has motivated extensive efforts to promote the sustainability of urban ecosystems and physical infrastructures. Less attention has been devoted to neighborhood inequalities and fissures in the civic infrastructure that potentially challenge social sustainability and the capacity of cities to collectively address environmental cha...

2015
Desiree Moraes Zouain Guilherme Ary Plonski

A large part (85%) of Brazil’s population lives in urban areas. Roughly half of these dwellers are located in large cities, defined as having 750,000 or more inhabitants. The urbanization trend is due to historical migration movements that occurred mostly before the recent phenomenon of globalization. Nevertheless, the growth of these urban centers is characterized by insufficient public polici...

Journal: :Frontiers for Young Minds 2023

Urban forest ecosystems are the collections of trees and other woody plants such as bushes shrubs in urban areas, well non-living (sidewalks, buildings, soil) living (people, insects, wildlife) things that interact with them. Most humans throughout world (56%) live ecosystems, so it is important these environments safe, healthy, sustainable. This article will point out forests your life. It als...

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