Urban ecological systems

Xem 1-9 trên 9 kết quả Urban ecological systems
  • Urban Ecology is the study of ecosystems that include humans living in cities and urbanizing landscapes. It is an emerging, interdisciplinary field that aims to understand how human and ecological processes can coexist in human-dominated systems and help societies with their efforts to become more sustainable. It has deep roots in many disciplines including sociology, geography, urban planning, landscape architecture, engineering, economics, anthropology, climatology, public health, and ecology.

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  • Tham khảo sách 'ecological engineering principles and practice', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Natural and social scientists face a great challenge in the coming decades: to understand the role that humans play in ecosystems, particularly urban ecosystems. Cities and urbanizing regions are complex coupled humannatural systems in which people are the dominant agents. As humans transform natural landscapes into highly human-dominated environments, they create a new set of ecological conditions by changing ecosystem processes and dynamics.

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  • Technological advances in cases are included in the equipment around us every day, our life is safer, hand in hand with economic advantage and ecology. This book collects original research related to composite materials, their properties and tested from different perspectives. Programs are divided into five groups according to their main purpose: the material properties, natural resources, manufacturing, Experimental and model.

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  • With a vision and a strategy the 21st century city will be green, a healthy place for all and will generate zero net pollution. This book offers a vision and a strategy. Productive urban landscapes have two huge challenges to address: CO2 emissions are projected to increase by two-thirds in the next 20 years, and as the global food production increases so does the number of people going hungry, with the number of urban hungry soaring. The symbiotic relationship between a productive landscape and the human settlement system is as old as civilization.

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  • The current problem with the human system of resource use and residual disposal is that it is wildly out of equilibrium. Competition among humans is such that we slaughter thousands of our own species annually on the roads in our haste to get somewhere faster; we let millions of babies die every year for want of clean water and a modest diet; we deliberately kill more millions of people in war, often to secure access to dwindling resources. In the last fifty years we have become more aware that our patho- logical drive for 'more' has poisoned the land, the water and the air.

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  • The steady increase in industrialization, urbanization and enormous population growth are leading to production of huge quantities of wastewaters that may frequently cause environmental hazards. Raw or treated waste water is very oft en discharged to freshwaters and results in changing ecological performance and biological diversity of these systems. About 70% of water supplied ends up as wastewater and several natural water reservoirs are being contaminated by untreated sewage/industrial effl uents. This makes waste water treatment and waste water reduction very important issues....

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  • The long-term good health of populations depends on the continued stability and functioning of the biosphere’s ecological and physical systems, often referred to as life-support systems. We ignore this long-established historical truth at our peril: yet it is all too easy to overlook this dependency, particularly at a time when the human species is becoming increasingly urbanized and distanced from these natural systems.

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  • Technology, engineering and medicine have inter- vened in the way we manage water and wetlands to successfully improve aspects of and foster human health. Over the same period, increasing human populations and increasing rates of consumption by humans, alterations to land use and land cover and the practices of irrigation, all associated with agri- culture, urban expansion, and global environmental change, have collectively and substantially adversely modified wetland systems, in terms of both water quality and water quantity.

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