In ecology, an oasis is a fertile area of a desert or semi-desert environment that sustains plant life and provides habitat for animals. Surface water may be present, or water may only be accessible from wells or underground channels created by humans. In geography, an oasis may be a current or past rest stop on a transportation route, or less-than-verdant location that nonetheless provides access to underground water through deep wells created and maintained by humans.
Urban ecology is the scientific study of the relation of living organisms with each other and their surroundings in an urban environment. An urban environment refers to environments dominated by high-density residential and commercial buildings, paved surfaces, and other urban-related factors that create a unique landscape. The goal of urban ecology is to achieve a balance between human culture and the natural environment.
Urban renewal is a program of land redevelopment often used to address urban decay in cities. Urban renewal involves the clearing out of blighted areas in inner cities to clear out slums and create opportunities for higher class housing, businesses, and other developments. In the United States the term technically refers only to a federal program in the middle-to-late 20th Century, but colloquially is sometimes used to refer to any large-scale change in urban development.
Urban agriculture refers to various practices of cultivating, processing, and distributing food in urban areas. The term also applies to the area activities of animal husbandry, aquaculture, beekeeping, and horticulture in an urban context. Urban agriculture is distinguished from peri-urban agriculture, which takes place in rural areas at the edge of suburbs.
Urban forestry is the care and management of single trees and tree populations in urban settings for the purpose of improving the urban environment. Urban forestry involves both planning and management, including the programming of care and maintenance operations of the urban forest. Urban forestry advocates the role of trees as a critical part of the urban infrastructure. Urban foresters plant and maintain trees, support appropriate tree and forest preservation, conduct research and promote the many benefits trees provide. Urban forestry is practiced by municipal and commercial arborists, municipal and utility foresters, environmental policymakers, city planners, consultants, educators, researchers and community activists.
A pocket park is a small park accessible to the general public. While the locations, elements, and uses of pocket parks vary considerably, the common defining characteristic of a pocket park is its small size. Typically, a pocket park occupies one to three municipal lots and is smaller than 0.5 hectares in size.
An urban forest is a forest, or a collection of trees, that grow within a city, town or a suburb. In a wider sense, it may include any kind of woody plant vegetation growing in and around human settlements. As opposed to a forest park, whose ecosystems are also inherited from wilderness leftovers, urban forests often lack amenities like public bathrooms, paved paths, or sometimes clear borders which are distinct features of parks. Care and management of urban forests is called urban forestry. Urban forests can be privately and publicly owned. Some municipal forests may be located outside of the town or city to which they belong.
Federal Hill is a neighborhood in Providence, Rhode Island. It lies immediately west of the city's Downtown, across Interstate 95. Since the late 19th century, Federal Hill has been an enclave of Providence's Italian American community; today the neighborhood is known as Providence's Little Italy and is noted for its abundance of Italian restaurants, markets, and cultural establishments.
Sustainable landscape architecture is a category of sustainable design concerned with the planning and design of the built and natural environments.
Green infrastructure or blue-green infrastructure refers to a network that provides the “ingredients” for solving urban and climatic challenges by building with nature. The main components of this approach include stormwater management, climate adaptation, the reduction of heat stress, increasing biodiversity, food production, better air quality, sustainable energy production, clean water, and healthy soils, as well as more anthropocentric functions, such as increased quality of life through recreation and the provision of shade and shelter in and around towns and cities. Green infrastructure also serves to provide an ecological framework for social, economic, and environmental health of the surroundings. More recently scholars and activists have also called for green infrastructure that promotes social inclusion and equality rather than reinforcing pre-existing structures of unequal access to nature-based services.
Pittsburgh Parks Conservancy was founded in December 1996 by a group of citizens concerned with the deteriorating conditions of Pittsburgh’s historic city parks. A non-profit organization, the Parks Conservancy works closely with the City of Pittsburgh under an official public-private partnership agreement to restore and improve the city’s park system to its full potential. To date, the Parks Conservancy has raised more than $130 million and completed 22 major park improvement projects. A team of 40 dedicated Parks Conservancy employees work with thousands of volunteers, host hundreds of events, and provide programming for more than 7,500 children annually.
Greening is the process of transforming living environments, and also artifacts such as a space, a lifestyle or a brand image, into a more environmentally friendly version. The act of greening generally involves incorporating more environmentally friendly systems into one's environment, such as the home, work place, and general lifestyle.
In land-use planning, urban green space is open-space areas reserved for parks and other "green spaces", including plant life, water features - also referred to as blue spaces - and other kinds of natural environment. Most urban open spaces are green spaces, but occasionally include other kinds of open areas. The landscape of urban open spaces can range from playing fields to highly maintained environments to relatively natural landscapes.
Sustainable urbanism is both the study of cities and the practices to build them (urbanism), that focuses on promoting their long term viability by reducing consumption, waste and harmful impacts on people and place while enhancing the overall well-being of both people and place. Well-being includes the physical, ecological, economic, social, health and equity factors, among others, that comprise cities and their populations. In the context of contemporary urbanism, the term cities refers to several scales of human settlements from towns to cities, metropolises and mega-city regions that includes their peripheries / suburbs / exurbs. Sustainability is a key component to professional practice in urban planning and urban design along with its related disciplines landscape architecture, architecture, and civil and environmental engineering. Green urbanism and ecological urbanism are other common terms that are similar to sustainable urbanism, however they can be construed as focusing more on the natural environment and ecosystems and less on economic and social aspects. Also related to sustainable urbanism are the practices of land development called Sustainable development, which is the process of physically constructing sustainable buildings, as well as the practices of urban planning called smart growth or growth management, which denote the processes of planning, designing, and building urban settlements that are more sustainable than if they were not planned according to sustainability criteria and principles.
La Plaza Cultural de Armando Perez is a community garden and public green space in the East Village neighborhood of Manhattan, New York City. Serving as a community garden, park, playground, wildlife refuge, urban farm, community composting site, and performance venue, La Plaza Cultural is also utilized by local day-care centers, after-school programs and a growing number of parents with small children. The garden has been known to grow a number of various edible plants including fruits, vegetable, and herbs. The lot is approximately 0.64 acres and consists of at least 11 members.
The Urban Ecology Center is a nonprofit organization in Milwaukee, Wisconsin. Their mission is to educate the Milwaukee community about the environment, conservation, sustainability, and other issues related to urban ecology, as well as to preserve and protect the natural areas in the city.
Innovation districts are urban geographies of innovation where R&D strong institutions, companies, and other private actors develop integrated strategies and solutions to develop thriving innovation ecosystems–areas that attract entrepreneurs, startups, and business incubators. Unlike science parks, innovation districts are physically compact, leverage density and high levels of accessibility, and provide a “mash up” of activities including housing, office, and neighborhood-serving amenities. Districts signify the collapse back of innovation into cities and is increasingly used as a way to revitalize the economies of cities and their broader regions. As of 2019, there are more than 100 districts worldwide.
Open spaces in urban environments, such as parks, playgrounds, and natural areas, can provide many health, cultural, recreational, and economic benefits to the communities nearby. However, access to open spaces can be unequal for people of different incomes. In California's two largest metropolitan regions, Los Angeles County in Southern California and the Bay Area in Northern California, access to green space and natural areas varies with the predominant races and classes of the communities. This also holds true in San Diego County in Southern California. Both expanding urbanization and diminishing funding for open space tend to widen these gaps in accessibility. Because open space is associated with various mental and physical benefits, a lack of access to it can pose health consequences. However, more research is needed to determine whether such environmental inequalities translate into long-term health inequalities, and, if so, how.
Mexico City has massively been expanding its urban fabric and population density, becoming the 5th largest city in the world. A combination of neoliberal policies, complex geographic location, socio-economic disparities and inefficient strategies, have influenced the process of gentrification in the city. The combination of numerous megaprojects and inefficient city-planning strategies have led to dysfunctions in circulation, community allocation and equal access to resources. In consequence, middle and low-income communities have been directly or indirectly alienated and challenged to adapt to a complex and evolving urban environment.
Urban ecotourism is a relatively new form of ecotourism that takes place in urban settings. The concept first appeared in 1996 when the Blackstone Corporation defined it as “[...] travel and exploration within and around an urban area that offers visitors enjoyment and appreciation of the city's natural areas and cultural resources, [...] promotes the city's long-term ecological health [...] promotes sustainable local economic and community development and vitality; [...] is accessible and equitable to all”. Urban ecotourism shares the same goals for sustainability and community development as traditional ecotourism, but applies them to large cities, industrial wastelands, and post-productivist agriculture sites, as opposed to more nature-based venues for traditional ecotourism. Destinations in these locations may take the form of linear parks, farm-to-table restaurants, rewilding parks, biking and hiking trails, sustainable hotels, and rooftop gardens.
