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- Title
树木年轮汞记录: 进展、问题和展望.
- Authors
康虎虎; 刘晓宏; 张馨予; 郭军明; 吴国菊; 徐国保; 康世昌
- Abstract
As a highly biotoxic element, mercury (Hg) can be enriched by the food chain and has negative effect on ecosystems. Changes of Hg flux and reserves in forest have important effects on its biogeochemical cycle in forest ecosystem. Due to limitation of temporal and spatial monitoring, there is not comprehensive understanding on Hg distribution. Widely distributed trees can be used as effective bio-monitors and Hg records in tree rings can be used to study Hg temporal and spatial distribution. Hg accumulated by root, leaf, bark, and other tissues can be detained in bole and record environmental Hg variations. Therefore, historical Hg trends can be restructured by analyzing Hg concentration in tree rings and the biogeochemical characteristics can be understood with Hg isotope ratio. We reviewed the method of measurement of Hg concentration and isotope ratio and application of reconstruction using Hg concentration in tree ring. We suggested the great application potential of Hg isotope ratio in atmospheric Hg construction and biogeochemistry cycle and raised concerns in further studies.
- Subjects
FOREST reserves; BIOGEOCHEMICAL cycles; ENRICHED foods; FOOD chains; TREE-rings; BIOGEOCHEMISTRY; ECOSYSTEMS
- Publication
Yingyong Shengtai Xuebao, 2021, Vol 32, Issue 10, p3733
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202110.003