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[Nutrient retranslocation in fine roots of Cunninghamia lanceolata, Alnus cremastogyne and Kalopanax septemlobum in the mixed plantations--a pilot study].

Authors
Type
Published Article
Journal
Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban
Publication Date
Volume
11
Issue
2
Pages
161–164
Identifiers
PMID: 11767584
Source
Medline
License
Unknown

Abstract

Comparison of N, P and K concentrations in live and dead fine roots of Cunninghamia lanceolata, Alnus cremastogyne and Kalopanax septemlobum showed that the fine roots of A. cremastogyne had a stronger ability of N retranslocation than K. septemlobum's, but no N translocation occurred in C. lanceolata's. P retranslocation could be found in the fine roots of the all test tree species except C. lanceolata. As for K, it could translocate from fine roots to tree bodies of all these tree species before senescence. Based on the analysis on the difference of N, P, and K concentrations in live fine roots of each pair of tree species in the mixtures, it was suggested that N and K could respectively transfer from the root system of A. cremastogyne and K. septemlobum to the fine roots of C. lanceolata, and the mechanism could be clarified through exploring the ecological process of root-soil interface.

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