Forestry is the science and craft of creating, managing, planting, using, conserving and repairing and for associated resources for human and environmental benefits. Forestry is practiced in 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. 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 resources, recreation, landscape and community protection, employment, aesthetically appealing , 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, 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. Forestry is an important economic segment in various industrial countries, as forests provide more than 86 million green jobs and support the livelihoods of many more people. For example, in Germany, forests cover nearly a third of the land area,[ Bundeswaldinventur 2002 , Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz (BMELV), retrieved, 17 January 2010] 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.[ Unternehmen Wald, forests as an enterprise, German private forestry association website ]
Worldwide, an estimated 880 million people spend part of their time collecting fuelwood or producing charcoal, many of them women. 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. Some 252 million people living in forests and savannahs have incomes of less than US$1.25 per day.
Science
Forestry as a science
Over the past centuries,
silviculture 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.
[Wojtkowski, Paul A. (2002) Agroecological Perspectives in Agronomy, Forestry and Agroforestry. Science Publishers Inc., Enfield, NH, 356p.] 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.
[Wojtkowski, Paul A. (2006) Undoing the Damage: Silviculture for Ecologists and Environmental Scientists. Science Publishers Inc., Enfield, NH, 313p.] 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.
Dendrology and silviculture
Dendrology is a subset of
botany; it is the scientific discipline that studies
woody plants (
,
, and
), specifically, their taxonomic classifications.
Silviculture on the other hand is the commercial practice of forest management , primarily for the production of timber.
Genetic diversity in forestry
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.
The term describes 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.
Genetic diversity is needed to maintain the vitality of forests and to provide resilience to pests and . 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.
Genetic diversity in forests is threatened by forest fires, pests and diseases, habitat fragmentation, poor silvicultural practices and inappropriate use of forest reproductive material.
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.
The marginal populations of many tree species are facing new threats due to the effects of climate change.
Most countries in Europe have recommendations or guidelines for selecting species and provenances that can be used in a given site or zone.
Forest management
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,
forest product, plant genetic resources, and other forest resource values.
Urban forestry
Urban forestry is the care and management of single
and tree
in
Urban area 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.
Forestry education
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.
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.
In Canada the Canadian Institute of Forestry awards silver rings to graduates from accredited university BSc programs, as well as college and technical programs.
The International Union of Forest Research Organizations is the international organization that coordinates forest science efforts worldwide.
History
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).
File:Sylva paper 1662.jpg|The first book edition of Sylva
File:Land Army girls sawing larch poles for use as pit props at the Women's Timber Corps training camp at Culford in Suffolk. TR912.jpg|Women of the Land Army cutting felled logs during World War II
Silvologists
See also
-
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
Sources
External links