J 2015

Mapping tree density at a global scale

GROWTHER, Thomas W.; Henry B. GLICK; Kristofer R. COVEY; Charles BETTIGOLE; Denial S. MAYNARD et al.

Základní údaje

Originální název

Mapping tree density at a global scale

Autoři

GROWTHER, Thomas W.; Henry B. GLICK; Kristofer R. COVEY; Charles BETTIGOLE; Denial S. MAYNARD; Stephen M. THOMAS; Jeffrey R. SMITH; Gregor HINTLER; Marlyse C. DUGUID; Giuseppe AMATULLI; Mao-Ning TUANMU; Walter JETZ; Christian SALAS; Carson STAM; Daniel PIOTTO; Rebecca TAVANI; Stephen GREEN; Gareth BRUCE; S. J. WILLIAMS; Susan K. WISER; Markus O. HUBER; Geerten M. HENGEVELD; G.-J. NABUURS; Elena TIKHONOVA; Peter BORCHADT; Ching-Feng LI; Les W. POWRIE; Markus FISCHER; Andreas HEMP; Jürgen HOMEIER; Percival CHO; A. C. VIBRANS; P. M. UMUNAY; S. L. PIAO; C. W. ROWE; Mark S. ASHTON; Peter R. CRANE a Mark A. BRADFORD

Vydání

NATURE, 2015, 0028-0836

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

40102 Forestry

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 38.138

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00086260

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

CLIMATE-CHANGE; FORESTS; BIOMASS; DEFORESTATION; MAP

Štítky

Změněno: 28. 4. 2016 15:32, Ing. Andrea Mikešková

Anotace

V originále

The global extent and distribution of forest trees is central to our understanding of the terrestrial biosphere. We provide the first spatially continuous map of forest tree density at a global scale. This map reveals that the global number of trees is approximately 3.04 trillion, an order of magnitude higher than the previous estimate. Of these trees, approximately 1.39 trillion exist in tropical and subtropical forests, with 0.74 trillion in boreal regions and 0.61 trillion in temperate regions. Biome-level trends in tree density demonstrate the importance of climate and topography in controlling local tree densities at finer scales, as well as the overwhelming effect of humans across most of the world. Based on our projected tree densities, we estimate that over 15 billion trees are cut down each year, and the global number of trees has fallen by approximately 46% since the start of human civilization.