DOI: 10.1111/gcb.13349
论文题名: Spatial distribution of young forests and carbon fluxes within recent disturbances in Russia
作者: Loboda T.V. ; Chen D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期: 1 起始页码: 138
结束页码: 153
语种: 英语
英文关键词: boreal forest
; carbon fluxes
; forest dynamics
; monitoring
; remote sensing
Scopus关键词: boreal forest
; carbon flux
; environmental disturbance
; forest dynamics
; monitoring system
; remote sensing
; spatial distribution
; Russian Federation
英文摘要: Forest stand age plays a major role in regulating carbon fluxes in boreal and temperate ecosystems. Young boreal forests represent a relatively small but persistent source of carbon to the atmosphere over 30 years after disturbance, while temperate forests switch from a substantial source over the first 10 years to a notable sink until they reach maturity. Russian forests are the largest contiguous forest belt in the world that accounts for 17% of the global forest cover; however, despite its critical role in controlling global carbon cycle, little is known about spatial patterns of young forest distribution across Russia as a whole, particularly before the year 2000. Here, we present a map of young (0–27 years of age) forests, where 12- to 27-year-old forests were modeled from the single-date 500 m satellite record and augmented with the 0- to 11-year-old forest map aggregated from the 30 m resolution contemporary record between 2001 and 2012. The map captures the distribution of forests with the overall accuracy exceeding 85% within three largest bioclimatic vegetation zones (northern, middle, and southern taiga), although mapping accuracy for disturbed classes was generally low (the highest of 31% for user's and producer's accuracy for the 12–27 age class and the maximum of 74% for user's and 32% for producer's accuracy for the 0–11 age class). The results show that 75.5 ± 17.6 Mha (roughly 9%) of Russian forests were younger than 30 years of age at the end of 2012. The majority of these 47 ± 4.7 Mha (62%) were distributed across the middle taiga bioclimatic zone. Based on the published estimates of net ecosystem production (NEP) and the produced map of young forests, this study estimates that young Russian forests represent a total sink of carbon at the rate of 1.26 Tg C yr−1. © 2016 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61168
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Geographical Sciences, University of Maryland, 7251 Preinkert Dr., College Park, MD, United States
Recommended Citation:
Loboda T.V.,Chen D.. Spatial distribution of young forests and carbon fluxes within recent disturbances in Russia[J]. Global Change Biology,2017-01-01,23(1)