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DOI	10.1007/s11027-008-9152-7
	Quantification of net primary production of Chinese forest ecosystems with spatial statistical approaches
	Zhuang, Qianlai; Zhang, Tonglin; Xiao, Jingfeng; Luo, Tianxiang
通讯作者	Zhuang, QL (通讯作者)
发表日期	2009
ISSN	1381-2386
EISSN	1573-1596
起始页码	85
结束页码	99
卷号	14 期号:1
英文摘要	Net primary production (NPP) of terrestrial ecosystems provides food, fiber, construction materials, and energy to humans. Its demand is likely to increase substantially in this century due to rising population and biofuel uses. Assessing national forest NPP is of importance to best use forest resources in China. To date, most estimates of NPP are based on process-based ecosystem modeling, forestry inventory, and satellite observations. There are little efforts in using spatial statistical approaches while large datasets of in-situ observed NPP are available for Chinese forest ecosystems. Here we use the surveyed forest NPP and ecological data at 1,266 sites, the data of satellite forest coverage, and the information of climate and topography to estimate Chinese forest NPP and their associated uncertainties with two geospatial statistical approaches. We estimate that the Chinese forest and woodland ecosystems have total NPP of 1,325 +/- 102 and 1,258 +/- 186 Tg C year(-1) in 1.57 million km(2) forests with a regression method and a kriging method, respectively. These estimates are higher than the satellite-based estimate of 1,034 Tg C year(-1) and almost double the estimate of 778 Tg C year(-1) using a process-based terrestrial ecosystem model. Cross-validation suggests that the estimates with the kriging method are more accurate. Our developed geospatial statistical models could be alternative tools to provide national-level NPP estimates to better use Chinese forest resources.
关键词	CARBON STORAGE TERRESTRIAL ECOSYSTEMS BIOMASS DISCOVER DATABASE MODELS AGE
英文关键词	Net primary production; Chinese forest ecosystems; Spatial statistics; Ecosystem modeling; Satellite-derived NPP; MODIS
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000282549300005
来源期刊	MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE
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/257677
推荐引用方式 GB/T 7714	Zhuang, Qianlai,Zhang, Tonglin,Xiao, Jingfeng,et al. Quantification of net primary production of Chinese forest ecosystems with spatial statistical approaches[J]. 中国科学院青藏高原研究所,2009,14(1).
APA	Zhuang, Qianlai,Zhang, Tonglin,Xiao, Jingfeng,&Luo, Tianxiang.(2009).Quantification of net primary production of Chinese forest ecosystems with spatial statistical approaches.MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE,14(1).
MLA	Zhuang, Qianlai,et al."Quantification of net primary production of Chinese forest ecosystems with spatial statistical approaches".MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE 14.1(2009).