气候变化领域集成服务门户(CCPortal): MODIS Based Estimation of Forest Aboveground Biomass in China

CCPortal

DOI	10.1371/journal.pone.0130143
	MODIS Based Estimation of Forest Aboveground Biomass in China
	Yin, Guodong; Zhang, Yuan; Sun, Yan; Wang, Tao; Zeng, Zhenzhong; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2015
ISSN	1932-6203
卷号	10 期号:6
英文摘要	Accurate estimation of forest biomass C stock is essential to understand carbon cycles. However, current estimates of Chinese forest biomass are mostly based on inventorybased timber volumes and empirical conversion factors at the provincial scale, which could introduce large uncertainties in forest biomass estimation. Here we provide a data-driven estimate of Chinese forest aboveground biomass from 2001 to 2013 at a spatial resolution of 1 km by integrating a recently reviewed plot-level ground-measured forest aboveground biomass database with geospatial information from 1-km Moderate-Resolution Imaging Spectroradiometer (MODIS) dataset in a machine learning algorithm (the model tree ensemble, MTE). We show that Chinese forest aboveground biomass is 8.56 Pg C, which is mainly contributed by evergreen needle-leaf forests and deciduous broadleaf forests. The mean forest aboveground biomass density is 56.1 Mg C ha(-1), with high values observed in temperate humid regions. The responses of forest aboveground biomass density to mean annual temperature are closely tied to water conditions; that is, negative responses dominate regions with mean annual precipitation less than 1300 mm y(-1) and positive responses prevail in regions with mean annual precipitation higher than 2800 mm y(-1). During the 2000s, the forests in China sequestered C by 61.9 Tg C y(-1), and this C sink is mainly distributed in north China and may be attributed to warming climate, rising CO2 concentration, N deposition, and growth of young forests.
关键词	CARBON STOCKS MODERATE RESOLUTION WOODY BIOMASS INVENTORY ECOSYSTEMS EMISSIONS STORAGE WORLDS SINKS AGE
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000358147500053
来源期刊	PLOS ONE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258439
推荐引用方式 GB/T 7714	Yin, Guodong,Zhang, Yuan,Sun, Yan,et al. MODIS Based Estimation of Forest Aboveground Biomass in China[J]. 中国科学院青藏高原研究所,2015,10(6).
APA	Yin, Guodong,Zhang, Yuan,Sun, Yan,Wang, Tao,Zeng, Zhenzhong,&Piao, Shilong.(2015).MODIS Based Estimation of Forest Aboveground Biomass in China.PLOS ONE,10(6).
MLA	Yin, Guodong,et al."MODIS Based Estimation of Forest Aboveground Biomass in China".PLOS ONE 10.6(2015).