Changes in planted forests and future global implications

摘要: Abstract This paper focuses on an analysis of planted forests data from the 2015 Forests Resources Assessment U.N. Food and Agriculture Organisation (FRA 2015). It forms one a series papers in FRA special issue this journal. While total forest area decreased 4.28 billion hectares to 3.99 1990 2015, with percent global cover dropping 31.85% 30.85%, increased 167.5 277.9 million or 4.06% 6.95% area. Increase was most rapid temperate zone, regionally East Asia, followed by Europe, North America, Southern Southeast Asia. However annualised rate increase slowed 2010–2015 period 1.2%, below 2.4% suggested is needed supply all world’s timber fibre needs. The majority comprised native species only 18–19% being introduced species. Introduced were dominant southern hemisphere countries South Oceania Eastern Africa where industrial forestry dominant. Twenty accounted for 85% different 20 87% roundwood supply. As area, also showed increasing trend although based minimal data. There mismatch composition rankings top production suggesting that there are substantial opportunities future, especially China which has largest but currently ranked 3rd production. Outlook statements developed FAO sub regions past changes population growth, climate health risks identify key issues future. overall view study suggests impacts, extreme climatic events will affect future impacts can be expected increase. Outlooks vary regionally. Europe America likely concerned risks; Asia experience pressure impact land availability new weather events, need make its existing forests; offset continuing deforestation growth; Oceania, Caribbean, Central impacts. To ensure continued contribution forests, number responses required both maintain develop forests. Intensification lessen greater areas any use conflicts related food security; adaptation strategies as matter urgency, focus must remain priority research. Establishment eased through community stakeholder engagement. Application models such WWF’s New Generation Plantations, recognises importance society consider full range products services within wider landscape spectrum uses, important. We recommend enable deeper Assessments ways better gather specific productivity so important component understood.