Angular Distribution of Element Contents in Tree Rings and the Environmental InformationEnglish Full Text
KE SHANZHE; LIU ZHENGRONG; QIAN JUNLONG; CHEN RUSONGI and KE XIAOKANG (Physics Department, Nanjing University, Nanjing 210095,China)(Nanjing Institute of Geogmphy and Limnology, the Chinese Academy of Sciences, Nanjing 210008, China)(Garded and Greenbelt
Abstract: Element contents of tree rings and soils near tree roots collected from Deodar cedar （Cedrus deodara （Roxb.） G. Don） and Masson pine （Picks massoniana lamb.） were determined to study the relationship between the angular distribution of element contents in tree rings and the environmental information. The chemical composition and properties of soils are very much complicated, which leads to the non-uniform distribution of the element contents in tree rings. The statistical multi-variable regression method was used to got the information of the tree-centered distribution of element contents in the environment （soil） （C’）, C’（z, θj ）, from the distribution of element contents in tree rings （C）, C（Z, θi）, which depends on the plane azimuth angle （θi）, i. e., C=C（Z,θi）, where Z is the atomic number of the element, with a satisfactory result,though this study is only a primary one.
- Series：
(D) Agriculture
- Subject：
Fundamental Science of Agriculture; Agronomy
- Classification Code：
S154
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