气候变化领域集成服务门户(CCPortal): Mapping spatial distribution of forest age in China

CCPortal

DOI	10.1002/2016EA000177
	Mapping spatial distribution of forest age in China
	Zhang, Yuan; Yao, Yitong; Wang, Xuhui; Liu, Yongwen; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2017
EISSN	2333-5084
起始页码	108
结束页码	116
卷号	4 期号:3
英文摘要	Forest stand age is a meaningful metric, which reflects the past disturbance legacy, provides guidelines for forest management practices, and is an important factor in qualifying forest carbon cycles and carbon sequestration potential. Reliable large-scale forest stand age information with high spatial resolutions, however, is difficult to obtain. In this study, we developed a top-down method to downscale the provincial statistics of national forest inventory data into 1km stand age map using climate data and light detection and ranging-derived forest height. We find that the distribution of forest stand age in China is highly heterogeneous across the country, with a mean value of similar to 42.6years old. The relatively young stand age for Chinese forests is mostly due to the large proportion of newly planted forests (0-40years old), which are more prevailing in south China. Older forests (stand age > 60years old) are more frequently found in east Qinghai-Tibetan Plateau and the central mountain areas of west and northeast China, where human activities are less intensive. Among the 15 forest types, forests dominated by species of Taxodiaceae, with the exception of Cunninghamia lanceolata stands, have the oldest mean stand age (136years), whereas Pinus massoniana forests are the youngest (18years). We further identified uncertainties associated with our forest age map, which are high in west and northeast China. Our work documents the distribution of forest stand age in China at a high resolution which is useful for carbon cycle modeling and the sustainable use of China's forest resources.
关键词	GROWTH
语种	英语
WOS研究方向	Astronomy & Astrophysics ; Geology
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS记录号	WOS:000399352500001
来源期刊	EARTH AND SPACE SCIENCE
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/258904
推荐引用方式 GB/T 7714	Zhang, Yuan,Yao, Yitong,Wang, Xuhui,et al. Mapping spatial distribution of forest age in China[J]. 中国科学院青藏高原研究所,2017,4(3).
APA	Zhang, Yuan,Yao, Yitong,Wang, Xuhui,Liu, Yongwen,&Piao, Shilong.(2017).Mapping spatial distribution of forest age in China.EARTH AND SPACE SCIENCE,4(3).
MLA	Zhang, Yuan,et al."Mapping spatial distribution of forest age in China".EARTH AND SPACE SCIENCE 4.3(2017).