气候变化领域集成服务门户(CCPortal): Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I: phytolith-based transfer functions

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DOI	10.1016/j.quascirev.2005.07.014
	Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I: phytolith-based transfer functions
	Lu, Hou-Yuan; Wu, Nai-Qin; Yang, Xiang-Dong; Jiang, Hui; Liu, Kam-biu; Liu, Tung-Sheng
发表日期	2006
ISSN	0277-3791
起始页码	945
结束页码	959
卷号	25 期号:9-10
英文摘要	This study investigated the distribution of phytolith assemblages in China from surface soil samples at 243 sites along significant ecological and climatic gradients to develop transfer functions for quantitative reconstruction of palaeoenvironment. Canonical correspondence analysis (CCA) and detrended correspondence analysis (DCA) were used to determine the main environmental variables influencing phytolith distributions. The results reveal that mean annual precipitation (MAP) is the dominant variable controlling the spatial distribution of phytoliths, which accounts for 39% of the total variance. Mean annual temperature (MAT), relative humidity (Humi), and annual evaporation (VAP) are another three significant variables, accounting for 6%, 10%, and 5%, respectively, of the total variance in phytolith distributions. Transfer functions,. based on weighted averaging plus partial least squares (WA-PLS), were developed for MAP (R--boot(2) = 0.90, root-mean-square-error of prediction (RMSEP) = 148 mm), MAT (R--boot(2) = 0.84, RMSEP = 2.52 degrees C), Humi (R--boot(2) = 0.75, RMSEP = 6.36%) and VAP (R--boot(2) =0.59, RMSEP=327mm). Overall, our results confirm that phytoliths can provide reliable and robust estimates of MAP, MAT, Humi and VAP Thus, WA-PLS is a robust calibration method for quantitative palaeoenvironmental reconstruction based on phytolith data. (c) 2005 Elsevier Ltd. All rights reserved.
关键词	CANONICAL CORRESPONDENCE-ANALYSIS LATE QUATERNARY ENVIRONMENTS LOWER TAIERI PLAIN NEW-ZEALAND PALEOENVIRONMENTAL RECONSTRUCTION SURFACE-SEDIMENT CALIBRATION SET UNITED-STATES LATE-HOLOCENE SOUTH ISLAND
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000238300200007
来源期刊	QUATERNARY SCIENCE REVIEWS
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/257451
推荐引用方式 GB/T 7714	Lu, Hou-Yuan,Wu, Nai-Qin,Yang, Xiang-Dong,et al. Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I: phytolith-based transfer functions[J]. 中国科学院青藏高原研究所,2006,25(9-10).
APA	Lu, Hou-Yuan,Wu, Nai-Qin,Yang, Xiang-Dong,Jiang, Hui,Liu, Kam-biu,&Liu, Tung-Sheng.(2006).Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I: phytolith-based transfer functions.QUATERNARY SCIENCE REVIEWS,25(9-10).
MLA	Lu, Hou-Yuan,et al."Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I: phytolith-based transfer functions".QUATERNARY SCIENCE REVIEWS 25.9-10(2006).