This paper describes various possibilities of the cities of futures considering various constraints and demand of society, environment and geography. The need for future cities arises because of the rapid growth in population and thereby causing a decline in the living standards. In the United States itself, many people are moving to cities every day. Today cities are getting crowded and if the influx continues at the same rate, current cities will become unmanageable and unlivable.
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Showing items 1 through 9 of 124.-
Library ResourcePeer-reviewed publicationJune, 2015United States of America
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Library ResourceJournal Articles & BooksDecember, 2013United States of America
Ecosystem services, i.e., services provided to humans from ecological systems have become a key issue of this century in resource management, conservation planning, and environmental decision analysis. Mapping and quantifying ecosystem services have become strategic national interests for integrating ecology with economics to help understand the effects of human policies and actions and their subsequent impacts on both ecosystem function and human well-being.
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Library ResourceJournal Articles & BooksDecember, 2012Canada
Species distribution modelling (SDM) can help conservation by providing information on the ecological requirements of species at risk. We developed habitat suitability models at multiple spatial scales for a threatened freshwater turtle, Emydoidea blandingii, in Ontario as a case study. We also explored the effect of background data selection and modelling algorithm selection on habitat suitability predictions. We used sighting records, high-resolution land cover data (25m), and two SDM techniques: boosted regression trees; and maximum entropy modelling.
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Library ResourceJournal Articles & BooksDecember, 2011United States of America, Northern America
Fire, climatic variability, and grazing by large herbivores have historically limited woody vegetation in the tallgrass prairie region of North America to gallery forests in protected areas along rivers and streams. Fire, in particular, has been a strong selective pressure against woody vegetation. Consequently, we expect that dominant tree species in these forests have developed mechanisms for tolerating periodic surface fires.
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Library ResourceJournal Articles & BooksDecember, 2013United States of America
This study provides a spatially comprehensive assessment of sustainable agricultural residue removal potential across the United States for bioenergy production. Earlier assessments determining the quantity of agricultural residue that could be sustainably removed for bioenergy production at the regional and national scale faced a number of computational limitations. These limitations included the number of environmental factors, the number of land management scenarios, and the spatial fidelity and spatial extent of the assessment.
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Library ResourceJournal Articles & BooksDecember, 2012United States of America
There has been increasing interest in the use of market-based approaches to add value for forestland and to assist with the conservation of natural resources. While markets for ecosystem services show potential for increasing forestland value, there is concern that the lack of an integrated program will simply add to the complexity of these services without generating significant public benefits.
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Library ResourceJournal Articles & BooksDecember, 2012United States of America
Mechanical treatment of vegetation is done on public and private lands for many possible reasons, including enhancing wildlife habitat, increasing timber growth of residual stands, and improving resistance to damaging pests. Few studies, however, have focused on the circumstances under which mechanical wildfire hazard reduction treatments can yield positive net economic wildfire benefits for landowners and managers.
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Library ResourceJournal Articles & BooksDecember, 2012United States of America
Land use and land cover changes have complex linkages to climate variability and change, biophysical resources, and socioeconomic driving forces. To assess these land change dynamics and their causes in the Great Plains, we compare and contrast contemporary changes across 16 ecoregions using Landsat satellite data and statistical analysis. Large-area change analysis of agricultural regions is often hampered by change detection error and the tendency for land conversions to occur at the local-scale.
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Library ResourceJournal Articles & BooksDecember, 2012United States of America
Public forest management requires consideration of numerous objectives including protecting ecosystem health, sustaining habitats for native communities, providing sustainable forest products, and providing noncommodity ecosystem services. It is difficult to evaluate the long-term, cumulative effects and tradeoffs these and other associated management objectives.
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Library ResourceJournal Articles & BooksDecember, 2012Canada, United States of America, Northern America
Public land management across North America now incorporates multiple ecological and social values and has led to use of increasingly complex silvicultural systems, such as those designed to emulate natural disturbance regimes, in an effort to manage for this wider variety of objectives. In the eastern United States and Canada, canopy gap-based silvicultural systems are often used to promote and sustain intra-stand variability in temporal and spatial patterns.
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