Urban reforestation is the practice of planting trees, typically on a large scale, in urban environments. [1] It may also include urban horticulture and urban farming. [2]
Reasons for practicing urban reforestation include urban beautification; increasing shade; [1] modifying the urban climate; [3] improving air quality, [4] such as by sequestering carbon dioxide; [5] and restoration of urban forests after a natural disaster. [6] Increased shade from urban reforestation can also lead to decreased energy costs, as heat from the sun is blocked from heating structures that use air conditioning. [5] These benefits may aid in increasing local property values, filtering rainwater pollutants from the streets and thus improving water quality, [7] and creating more habitats for wildlife, [7] particularly endangered species. [5]
Urban reforestation may also be effective because it does not require the purchase of a large piece of land to execute. [8]
The Urban Reforestation organization in Australia is a grassroots organization that focuses on sustainable living in urban places. [2]
The widespread reforestation in urban sites of Paris was launched in 2020 in order to reduce air pollution in the city. Anne Hidalgo, Mayor of Paris, stated that by the summer of 2023 63,500 trees were already planted, and by end of her term 170,000 will be planted in all. [9]
Istanbul Metropolitan Municipality began a green project that covers 78,500 m2 in Zeytinburnu to afforest the barren part of Zeytinburnu coast, and also the urban reforestation project provided continuity of the coast line Yedikule to Bakırköy for pedestrians. [10]
Large scale urban reforestation programs in the United States include New York City's Million Tree Initiative [11] and TreePeople in Los Angeles, which planted 1 million trees in preparation for the 1984 Summer Olympics and continued planting thereafter. [1] In 2022, Boston announced a new forestry division to grow the tree canopy within the city. [12]
Grassroots efforts include Friends of the Urban Forest in San Francisco, which advocates for the planting of street trees. [1]
In California, there are government funded programs such as the California Department of Forestry and Fire Protection's Urban Forestry Program. They advocate for local sustainability as well as health and happiness for the community long term. [13] This Urban Forestry Program also seeks to aid disadvantaged and/or low-income communities. [14]
Most cities have the potential to use urban reforestation as a means of combating climate change. [15] Urban reforestation can also contribute to lowering energy consumption. [15]
Urban reforestation efforts compete for money and urban land that could be used for other purposes. For example, effort placed in planting new trees can take away from maintenance of already established trees. [11] Equity of where urban reforestation occurs may also be questioned. Programs such as California Department of Forestry and Fire Protection's Urban Forestry target these communities, but this is not always the case. Inequality in distribution of trees planted during Urban Reforestation leads to inequality of life. Permanence of trees is also an issue as a tree planted is a tree that might have to be removed in the future due to preferences of land owners in urban spaces. [5]
Urban reforestation projects may also lack support in neighborhoods where environmentalist groups do not sufficiently involve residents in planning and decision-making, particularly when white environmentalists are conducting projects in communities of color, as noted in a 2014 report by environmental sociologist Dorceta Taylor from the University of Michigan. For example, from 2011 to 2014, a nonprofit organization named The Greening of Detroit planted thousands of new trees to restore Detroit's tree canopy. However, about a quarter of residents offered free trees in front of their homes submitted a "no tree request". Although they recognized the benefits of urban forestry, they didn't trust the organization staff, who were predominantly white and not from Detroit. They also felt that they didn't have enough say in what was being planted since they expected to be given responsibility for maintaining the trees planted in their neighborhoods, as previous reforestation project trees received inadequate care from the city and caused issues with appearance and safety. [16] Residents were a lot more open to the idea of receiving free trees if they got to choose what was planted. [17]
Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests and woodlands for associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. The science of forestry has elements that belong to the biological, physical, social, political and managerial sciences. Forest management plays an essential role in the creation and modification of habitats and affects ecosystem services provisioning.
Reforestation is the practice of restoring previously existing forests and woodlands that have been destroyed or damaged. The prior forest destruction might have happened through deforestation, clearcutting or wildfires. Three important purposes of reforestation programs are for harvesting of wood, for climate change mitigation, and for ecosystem and habitat restoration purposes. One method of reforestation is to establish tree plantations, also called plantation forests. They cover about 131 million ha worldwide, which is 3% of the global forest area and 45% of the total area of planted forests.
Tree planting is the process of transplanting tree seedlings, generally for forestry, land reclamation, or landscaping purposes. It differs from the transplantation of larger trees in arboriculture and from the lower-cost but slower and less reliable distribution of tree seeds. Trees contribute to their environment over long periods of time by improving air quality, climate amelioration, conserving water, preserving soil, and supporting wildlife. During the process of photosynthesis, trees take in carbon dioxide and produce oxygen.
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.
Afforestation is the establishment of a forest or stand of trees in an area where there was no recent tree cover. There are three types of afforestation: natural regeneration, agroforestry and tree plantations. Afforestation has many benefits. In the context of climate change, afforestation can be helpful for climate change mitigation through the route of carbon sequestration. Afforestation can also improve the local climate through increased rainfall and by being a barrier against high winds. The additional trees can also prevent or reduce topsoil erosion, floods and landslides. Finally, additional trees can be a habitat for wildlife, and provide employment and wood products.
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.
American Forests is a 501(c)(3) non-profit conservation organization, established in 1875, and dedicated to protecting and restoring healthy forest ecosystems. The current headquarters are in Washington, D.C.
Forest management is a branch of forestry concerned with overall administrative, legal, economic, and social aspects, as well as scientific and technical aspects, such as silviculture, forest protection, and forest regulation. This includes management for timber, aesthetics, recreation, urban values, water, wildlife, inland and nearshore fisheries, wood products, plant genetic resources, and other forest resource values. Management objectives can be for conservation, utilisation, or a mixture of the two. Techniques include timber extraction, planting and replanting of different species, building and maintenance of roads and pathways through forests, and preventing fire.
The Great Green Wall, officially known as the Three-North Shelter Forest Program, also known as the Three-North Shelterbelt Program, is a series of human-planted windbreaking forest strips (shelterbelts) in China, designed to hold back the expansion of the Gobi Desert, and provide timber to the local population. The program started in 1978, and is planned to be completed around 2050, at which point it will be 4,500 kilometres (2,800 mi) long.
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.
The Monterey County reforestation refers to efforts in Monterey County, California, to preserve the county's pine forests and urban environment. This one county boasts the native Monterey Pine ecosystem; one of the rarest forest ecosystems in the world. Only a few thousand acres of these endemic trees exist in four locations along the Pacific Ocean on the Central Coast of California. The city of Monterey itself maintains more than 19,000 trees in parks and along streets, as well as about 300 acres (1.2 km2) of Monterey Pine forests.
The Million Tree Initiative refers to the ongoing environmental projects that multiple cities have individually committed to and aimed at expanding urban forestry through the planting of one million trees. This initiative is part of a higher global movement, not only does it intend to act and diminish climate change, it also plans to lower both the urban heat as well as also enhance the air quality in many places. Cities that are known to be currently involved in this initiative are: Los Angeles, Denver, New York City, Shanghai, London, Ontario, and Amherst, New York. A common motive shared between these participating cities is, according to their mission statements, the reduction of carbon dioxide in the air to reduce the effects of global warming. Beyond these environmental advantages, these effort to plant the trees, also shows signs and effects when it comes to biodiversity, improving public health, and fostering sustainable urban development.
Community forestry is a participatory model of forestry that gained prominence in the 1970s in which local communities take an active role in forest management and land use decision making. Community forestry is defined by the Food and Agricultural Organization of the United Nations as "any situation that intimately involves local people in forestry activity". Unlike centralized management systems, community forestry more strongly emphasizes the participation and collaboration of local community stakeholders, along with government and non-governmental organizations (NGOs). The level of involvement of each of these groups is dependent on the specific community forest project, the management system and the region.
Forest restoration is defined as "actions to re-instate ecological processes, which accelerate recovery of forest structure, ecological functioning and biodiversity levels towards those typical of climax forest", i.e. the end-stage of natural forest succession. Climax forests are relatively stable ecosystems that have developed the maximum biomass, structural complexity and species diversity that are possible within the limits imposed by climate and soil and without continued disturbance from humans. Climax forest is therefore the target ecosystem, which defines the ultimate aim of forest restoration. Since climate is a major factor that determines climax forest composition, global climate change may result in changing restoration aims. Additionally, the potential impacts of climate change on restoration goals must be taken into account, as changes in temperature and precipitation patterns may alter the composition and distribution of climax forests.
Forest conservation is the practice of planning and maintaining forested areas for the benefit and sustainability of future generations. Forest conservation involves the upkeep of the natural resources within a forest that are beneficial for both humans and the ecosystem. Forests provide wildlife with a suitable habitat for living which allows the ecosystem to be biodiverse and benefit other natural processes. Forests also filter groundwater and prevent runoff keeping water safe for human consumption. There are many types of forests to consider and various techniques to preserve them. Of the types of forests in the United States, they each face specific threats. But, there are various techniques to implement that will protect and preserve them.
The Greening of Detroit is a 501(c)(3) non-profit environmental organization whose mission is to inspire the sustainable growth of a healthy urban community through trees, green spaces, healthy living, education, training and job opportunities. The Greening serves communities in Detroit, Highland Park and Hamtramck, Michigan.
Deforestation is a primary contributor to climate change, and climate change affects the health of forests. Land use change, especially in the form of deforestation, is the second largest source of carbon dioxide emissions from human activities, after the burning of fossil fuels. Greenhouse gases are emitted from deforestation during the burning of forest biomass and decomposition of remaining plant material and soil carbon. Global models and national greenhouse gas inventories give similar results for deforestation emissions. As of 2019, deforestation is responsible for about 11% of global greenhouse gas emissions. Carbon emissions from tropical deforestation are accelerating.
Assisted migration is the movement of populations or species by humans from one territory to another in response to climate change. This is the definition offered in a nontechnical document published by the United States Forest Service in 2023, suggesting that this form of climate adaptation "could be a proactive, pragmatic tool for building climate resilience in our landscapes."
Reforestation in Nigeria employs both natural and artificial methods. Reforestation involves the deliberate planting of trees and restoring forested areas that have been depleted or destroyed. It involves a planned restocking of the forest to ensure sustainable supply of timber and other forest products. Reforestation, in essence, involves replenishing forests to guarantee a consistent and sustainable supply of timber and various other forest resources. This objective can be accomplished through either natural regeneration techniques or artificial regeneration methods. Both of these approaches have been utilized in the reforestation efforts within Nigeria's forests. At the initiation of the reforestation program in Nigeria, the natural regeneration approach was chosen for two primary reasons. Firstly, it aimed to preserve the rainforest in its original state by allowing it to regenerate naturally from the existing seed bank in the soil. Secondly, and of significant importance, this method was selected due to budgetary constraints, as there were insufficient funds available to establish plantations through direct means.
Urban forest inequity, also known as shade inequity or tree canopy inequity, is the inequitable distribution of trees, with their associated benefits, across metropolitan areas. This phenomenon has a number of follow-on effects, including but not limited to measurable impacts on faunal biodiversity and the urban heat island effect. Urban heat inequity occurs when intra-urban heat islands, with their associated negative physical and emotional health consequences, are more common and more intense in lower-income communities.