年轮元素分析系统在中科院寒旱所安装运行

日前，由北京易科泰生态技术有限公司*代理的Multiscanner年轮元素分析系统在寒旱所公共实验室平台完成安装调试和使用培训，这是目前上功能zui为强大的集X-光密度成像（CT）和XRF元素分析的年轮分析平台。  

MultiScanner年轮元素分析系统同时采用了XRF元素分析技术和X-射线数码成像技术（CT），用于树木年轮密度和元素分析。可测量的元素有Al、Si、P、S、Cl、K、Ca、Ti、Cr、Mn、Fe、Ni、Cu、Zn、As、Rb、Sr、Hg、Pb等。其的同类产品为用于岩石样芯、沉积样芯密度与元素分析的CoreScanner。
下图是对某一年轮样品CT/XRF分析结果，包括光学成像、X-光密度成像（CT，中间的高分辨率黑白图像）及Ca在不同年轮中的浓度分布（蓝色曲线）。

MultiScanner不仅用于一般的年轮分析和古气候、环境变迁等研究分析，Yvonne Fors等在2014年的《Nature》上还发表了应用于海洋考古学研究的论文“Sulfur and iron accumulation in three marine-archaeological shipwrecks in the Baltic Sea: The Ghost, the Crown and the Sword "
Colette等（2013）利用MultiScanner对加拿大不列颠哥伦比亚中西部河流不同树木年轮宽度和密度进行了分析，并据此重建了到AD1660年的年轮水文气候，研究成果发表在《Hydrological Processes》（Dendrohydroclimate reconstructions of July–August runoff for two nival-regime rivers in west central British Columbia）。
Charlotte等（2006）利用MultiScanner对森林树木样品年轮密度及Mn元素和Bi元素进行了分析，以揭示气候变化对树木生长的影响。研究成果发表在《Applied Geochemistry》（A dendrochemical study of Pinus sylvestris from Siljansfors Experimental Forest, central Sweden）。 

下面这则案例则利用Multiscanner研究分析重金属污染对树木生长的影响。

参考文献
1.Wood L.J., Smith D.J., Climate and glacier mass balance trends from ad 1780 to present in the Columbia Mountains, British Columbia, Canada. The Holocene, DOI: 10.1177/0959683612465450
2.Frühwald K., Hasenstab A., Osterloh K., Detection of Incipient Decay of Wood with Non- and Minor-Destructive Testing Methods. Nondestructive Testing of Materials and Structures; O. Büyük?ztürk et al. (eds.), DOI 10.1007/978-94-007-0723-8_51
3.Luostarinen K., Her?j?rvi H., Relation of arabinogalactans to density, growth rate and shear strength in wood of c*ted Siberian larch. Eur. J. Wood Prod. (2013) 71: p29–36, DOI 10.1007/s00107-012-0651-6
4.Zubizarreta-Gerendiain A., Gort-Oromi J., Meht?talo L., Peltola H., Ven?l?inen A., Pulkkinen P., Effects of cambial age, clone and climatic factors on ring width and ring density in Norway spruce (Picea abies) in. southeastern Finland. Forest Ecology and Management (2012) v263 p9-16
5.Starheim C.C.A., Smith D.J., Prowse T.D., Dendrohydroclimate reconstructions of July–August runoff for two nival-regime rivers in west central British Columbia. Hydrol. Process. 27, 405–420 (2013) (2012), DOI: 10.1002/hyp.9257
6.Helama S., Bégin Y., Vartiainen M., Peltola H., Kolstr?m T., Meril?inen J., Quantifications of dendrochronological information from contrasting microdensitometric measuring circumstances of experimental wood samples. Applied Radiation and Isotopes v70 p1014–1023 (2012)
7.Fries A., Genetic parameters, genetic gain and correlated responses in growth, fibre dimensions and wood density in a Scots pine. breeding population. Annals of Forest Science (2012), DOI 10.1007/s13595-012-0202-7
8.Luostarinen, K., Tracheid Wall Thickness and Lumen Diameter in Different Axial and Radial Locations in C*ted Larix sibirica Trunks. Silva Fennica 46(5) p707-716
9.M?kinen H., Hynynen J., Predicting wood and tracheid properties of Scots pine. Forest Ecology and Management 279 (2012) p11–20
10.Bj?rklund J.A., Gunnarson B.E., Krusic P.J., Grudd H., Josefsson T., ?stlund L., Linderholm H.W., Advances towards improved low-frequency tree-ring reconstructions, using an updated Pinus sylvestris L. MXD network from the Scandinavian Mountains. Theor Appl Climatol DOI 10.1007/s00704-012-0787-7
11.Balouet J.C., Burken J.G., Karg F., Vroblesky D., Smith K.T., Grudd H., Rindby A., Beaujard F., Chalot M., Dendrochemistry of Multiple Releases of Chlorinated Solvents at a Former Industrial Site. Environ. Sci. Technol. 2012, 46, p9541?9547
12.Routa J., Kellom?ki S. , Strandman H., Bergh J., Pulkkinen P., Peltola H., The timber and energy biomass potential of intensively managed cloned Norway spruce stands. GCB Bioenergy (2013) 5, p43–52, doi: 10.1111/gcbb.12002
13.Melvin T.M., Grudd H., Briffa K.R., Potential bias in ‘updating’ tree-ring chronologies using regional curve standardisation: Re-processing 1500 years of Tornetr?sk density and ring-width data. The Holocene 23(3) p364–373 DOI: 10.1177/0959683612460791
14.Gunnarson B.E., Josefsson T., Linderholm H.W., ?stlund L., Legacies of pre-industrial land use can bias modern tree-ring climate calibrations. CR Vol. 53, No. 1. Online publication date: May 24, 2012 ISSN: 0936-577X; Online ISSN: 1616-1572
15.Starheim C.C.A., Smith D.J., Prowse T.D., Multi-century reconstructions of Pacific salmon abundance from climate-sensitive tree rings in west central British Columbia, Canada. Ecohydrology DOI: 10.1002/eco.1261
16.Puentes Rodriguez Y.*, Morales L., Willf?r S., Pulkkinen P.,, Peltola H., Pappinena A., Wood decay caused by Heterobasidion parviporum in juvenile wood specimens from normal- and narrow-crowned Norway spruce. Scandinavian Journal of Forest Research DOI:10.1080/02827581.2012.746387
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