Pedosphere 9(1): 69--76, 1999
ISSN 1002-0160/CN 32-1315/P
©1999 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Angular distribution of element contents in tree rings and the environmental information |
| KE Shan-Zhe1, LIU Zheng-Rong1, QIAN Jun-Long2, CHEN Ru-Songi1 and KE Xiao-Kang4 |
1 Physics Department, Nanjing University, Nanjing 210093 (China)
2 Nanjing Institute of Geography and Limnology, the Chinese Academy of Sciences, Nanjing 210008 (China)
3 Chemical Department, Nanjing University, Nanjing 210093 (China) |
| ABSTRACT |
| Element contents of tree rings and soils near tree roots collected from Deodar cedar (Cedrus deodara (Roxb.) G. Don) and Masson pine (Pinus 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 get 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. |
| Key Words: angular distribution, element contents, environmental information, tree rings |
| Citation: Ke, S. Z., Liu, Z. R., Qian, J. L., Chen, R. S. and Ke, X. K. 1999. Angular distribution of element contents in tree rings and the environmental information. Pedosphere. 9(1): 69-76. |
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