The tree ring has been used widely in the field of global climate change due to its advantage of accurate for cross-dating, well continuity, high-resolution and high sensitivity to the environment.

由于树木年轮具有定年准确、连续性好、分辨率高、对环境变化敏感性强等优势，已在全球气候变化研究中被广泛应用。

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The preserved timber means that tree ring samples will provide dendrochronological dating for Roman London, expected to be earlier than the current dating of AD 47.

BBC: 'Entire streets' of Roman London uncovered in the City