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Stone wall trees in Hong Kong : ウィキペディア英語版 | Stone wall trees in Hong Kong
Masonry wall trees refer to trees grown from openings in masonry stone retaining walls. In alleviating hazards from landslides, many slopes adjacent to main roads and developments on Hong Kong Island in Hong Kong needed to be secured. Between the 19th century and World War II, the Hong Kong Government and other contractors constructed masonry stone walls to prevent these hazards. Not until the last two decades have slopes been stabilised through cementing. In early constructed walls, opened joints between stones allowed strong species like banyans to sprout. Traffic and human activities carry on despite the growth of these plants, which further stabilise the retaining walls they are growing on. As time goes by, sprouts mature into fully developed stone wall trees. ==Distribution== As of today, 1275 stone wall trees are situated on 504 masonry stone retaining walls,〔(http://www.ecc.org.hk )〕 with 110 walls in the Central and Western District, where most walls remain,〔(http://www.foe.org.hk ) in Chinese only〕 with many others in Wan Chai District. A majority of these trees have lived for over a century. According to the Conservancy Association, some notable trees are located at:〔(http://www.conservancy.org.hk )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Stone wall trees in Hong Kong」の詳細全文を読む
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