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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.^[1] Forestry is practiced in plantations and natural stands.^[2] The science of forestry has elements that belong to the biological, physical, social, political and managerial sciences.^[3] Forest management plays an essential role in the creation and modification of habitats and affects ecosystem services provisioning.^[4] A practitioner of forestry is known as a forester.

Modern forestry generally embraces a broad range of concerns, in what is known as multiple-use management, including: the provision of timber, fuel wood, wildlife habitat, natural water quality management, recreation, landscape and community protection, employment, aesthetically appealing landscapes, biodiversity management, watershed management, erosion control, and preserving forests as "sinks" for atmospheric carbon dioxide.

Forest ecosystems have come to be seen as the most important component of the biosphere,^[5] and forestry has emerged as a vital applied science, craft, and technology. The control of forests for timber production is known as silviculture, as practiced by silviculturists. Although forestry is a broader concept, the two terms are often used synonymously.

All people depend upon forests and their biodiversity, some more than others.^[6] Forestry is an important economic segment in various industrial countries,^[7] as forests provide more than 86 million green jobs and support the livelihoods of many more people.^[6] For example, in Germany, forests cover nearly a third of the land area,^[8] wood is the most important renewable resource, and forestry supports more than a million jobs and about €181 billion of value to the German economy each year.^[9]

Worldwide, an estimated 880 million people spend part of their time collecting fuelwood or producing charcoal, many of them women.^[6] Human populations tend to be low in areas of low-income countries with high forest cover and high forest biodiversity, but poverty rates in these areas tend to be high.^[6] Some 252 million people living in forests and savannahs have incomes of less than US$1.25 per day.^[6]

Over the past centuries, forestry was regarded as a separate science. With the rise of ecology and environmental science, there has been a reordering in the applied sciences. In line with this view, forestry is a primary land-use science comparable with agriculture.^[10] Under these headings, the fundamentals behind the management of natural forests comes by way of natural ecology. Forests or tree plantations, those whose primary purpose is the extraction of forest products, are planned and managed to utilize a mix of ecological and agroecological principles.^[11] In many regions of the world there is considerable conflict between forest practices and other societal priorities such as water quality, watershed preservation, sustainable fishing, conservation, and species preservation.^[12]

Dendrology is a subset of botany; it is the scientific discipline that studies woody plants (trees, shrubs, and lianas), specifically, their taxonomic classifications.^[13] Silviculture on the other hand is the commercial practice of forest management , primarily for the production of timber.^[14]

The provenance of forest reproductive material used to plant forests has a great influence on how the trees develop, hence why it is important to use forest reproductive material of good quality and of high genetic diversity.^[15] Genetic diversity is the differences in DNA sequence between individuals as distinct from variation caused by environmental influences. The unique genetic composition of an individual (its genotype) will determine its performance (its phenotype) at a particular site.^[16] Genetic diversity is needed to maintain the vitality of forests and to provide resilience to pests and diseases. Genetic diversity also ensures that forest trees can survive, adapt and evolve under changing environmental conditions. Furthermore, genetic diversity is the foundation of biological diversity at species and ecosystem levels. Forest genetic resources are therefore important in forest management.^[15]

Genetic diversity in forests is threatened by forest fires, pests and diseases, habitat fragmentation, poor silvicultural practices and inappropriate use of forest reproductive material.^{[citation needed]} About 98 million hectares of forest were affected by fire in 2015; this was mainly in the tropical domain, where fire burned about 4 percent of the total forest area in that year. More than two-thirds of the total forest area affected was in Africa and South America. Insects, diseases and severe weather events damaged about 40 million hectares of forests in 2015, mainly in the temperate and boreal domains.^[17] The marginal populations of many tree species are facing new threats due to the effects of climate change.^[15] Most countries in Europe have recommendations or guidelines for selecting species and provenances that can be used in a given site or zone.^[16]

Forest management is the branch of forestry concerned with the administration and running of commercial forests. It addresses silviculture, forest protection, and regulation. Its goals include management for timber, aesthetics, recreation, urban values, watershed management, wildlife, inland and nearshore fisheries, wood products, plant genetic resources, and other forest resource values.^[18]

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.^[19]

Forestry education includes training in general biology, ecology, botany, genetics, soil science, climatology, hydrology, economics and forest management. Education in the basics of sociology and political science is often considered an advantage. Professional skills in conflict resolution and communication are also important in training programs.^[20] In the United States, postsecondary forestry education leading to a Bachelor's degree or Master's degree is accredited by the Society of American Foresters.^[21] In Canada the Canadian Institute of Forestry awards silver rings to graduates from accredited university BSc programs, as well as college and technical programs.^[22] The International Union of Forest Research Organizations is the international organization that coordinates forest science efforts worldwide.^[23]

The first major works about forestry in the English language included Roger Taverner's Booke of Survey (1565), John Manwood's A Brefe Collection of the Lawes of the Forrest (1592) and John Evelyn's Sylva (1662).^[24]

• 
  The first book edition of Sylva
• 
  Women of the Land Army cutting felled logs during World War II

• Gabriel Hemery
• Carl Ditters von Dittersdorf

• Agroforestry
• Close to nature forestry
• Community forestry
• List of forest research institutes
• List of forestry journals
• List of historic journals of forestry
• List of national forests of the United States
• Non-timber forest product
• Nonindustrial private forests

 This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 (license statement/permission). Text taken from Global Forest Resources Assessment 2020 Key findings​, FAO, FAO.

 This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO (license statement/permission). Text taken from The State of the World's Forests 2020. Forests, biodiversity and people – In brief​, FAO & UNEP, FAO & UNEP.

 This article incorporates text from a free content work. Licensed under CC BY-SA IGO 3.0 (license statement/permission). Text taken from World Food and Agriculture – Statistical Yearbook 2023​, FAO, FAO.

Wikimedia Commons has media related to Forestry and Forestry schools.

• Works related to Forestry at Wikisource
• www.silvology.com