Archive for 12月 2020

Home Archive for 12月 2020

trail marker trees 步道標記樹 L Tree

北美印第安人會故意彎曲樹木作為道路上的標記，幫助他們在野外找到路與確認位置，作為導航之用

Trail trees, trail marker trees, crooked trees, prayer trees, thong trees, or culturally modified trees are hardwood trees throughout North America that Native Americans intentionally shaped with distinctive characteristics that convey that the tree was shaped by human activity rather than deformed by nature or disease.[1] A massive network of constructed pre-Columbian roads and trails have been well documented across the Americas, and in many places remnants can still be found of trails used by hunters and gatherers. One unique characteristic of the trail marker tree is a horizontal bend several feet off the ground, which makes it visible at greater distances, even in snow. Even today, modern hunters look for horizontal shapes while hunting deer, elk, and moose.[citation needed] Dr. Janssen noted in 1941:

Among the many crooked trees encountered, only a few are Indian trail markers. The casual observer often experiences difficulty in distinguishing between accidentally deformed trees and those ... purposely bent by the Indians. Deformities may occur in many ways. A large tree may fall upon a sapling, pinning it down for a sufficient length of time to establish a permanent bend. Lightning may split a trunk, causing a portion to fall or lean in such a way as to resemble an Indian marker. Wind, sleet snow or depredations by animals may cause accidental deformities in trees. However, such injuries leave scars which are apparent to the careful observer, and these may serve in distinguishing such trees from Indian trail markers.[2]

Large trees that exhibit deformed growth and distinctive forms bent in a vertical plane are sometimes labeled trail trees, marker trees, thong trees, or signal trees by enthusiasts. Historically, these unique trees were commonly known as Indian trail trees. Proponents of trail tree lore claim these unique forms are culturally modified trees used to mark trails or important places. Distinctively bent trees have long been noted throughout the Temperate Deciduous Forest of eastern North America.[3] The extent to which indigenous peoples used such trees as navigational aids, and whether such trees were formed by anthropogenic or natural means is controversial.[4][5]

These distinctively shaped trees have been photographed and documented in the Great Lakes Region by scientists and historians since the early 1800s.

The Nomad Survivalist

12月7日下午11:48 ·

I need to Caveat that: this also happens naturally, due to fallen trees, bending etc etc.

The L Tree Aka, Trail trees, trail marker trees, crooked trees, prayer trees, thong trees

Many years ago, these trees were purposefully bent, and their odd shapes communicate very important messages.

No more than four or five feet off the ground, these trees bend sharply into right angles, parallel the earth for a measure, and turn sharply up again, towards the sky. These trees are now abandoned infrastructure. Like other structural relics, they were designed to be long-lasting so much so that some of these trees are still indicating the way. But the people they served have been forced to leave, and the marker trees themselves are in danger of disappearing.

The trees look like that because native tribes had purposefully shaped them to mark trails through the woods and across the water.

Having the knowledge of these trail trees could mean the difference between life and death, between eating and starving, between crossing the river correctly or incorrectly.

我需要警告: 這也自然發生, 因為倒下的樹木, 彎曲等.

L樹又名, 小徑樹, 拖車樹, 歪樹, 禱告樹, 丁字褲樹

多年前, 這些樹木故意彎曲, 它們奇怪的形狀傳遞了非常重要的訊息.

離地面不超過四到五英尺, 這些樹木急速向右角彎曲, 平行地球, 再一次向天空顯現. 這些樹現在被遺棄的基礎設施. 像其他結構性遺跡一樣, 它們的設計是長久的, 以至於其中一些樹木仍然指明道路. 但是他們所服務的人被迫離開, 標記樹本身也面臨消失的危險.

這些樹看起來像這樣, 因為原住民部落故意塑造它們, 以標記穿過樹林和穿過水域的小徑.

瞭解這些樹木可能意味著生死, 吃食和飢餓, 過河之間的區別, 正確或錯誤地過河之間的區別.

資料來源:

https://en.wikipedia.org/wiki/Trail_trees

fb: The Nomad Survivalist

「樹倒不再只限於颱風來襲時，樹木意外的發生更加頻繁且難以預料。」

以往都靠颱風來大掃除，將畸形脆弱的樹體淘汰。但台灣本島已經有四五年沒有颱風來襲，隨著時間拉長，累積越來越多脆弱的樹木缺陷。

因此，最近只要天氣稍微劇烈一點，刮個東北季風、下幾天豪雨，就很可能引爆都市樹木潛伏的危險。雖然沒有颱風吹，樹倒意外的發生時間卻比以前更加頻繁且難以預料，危險程度反而更大。

所以，針對木安全的巡查工作和管理策略比以往更加重要！

藉由專業迅速的檢查和管理，還可以省下更多經費！

有問題都歡迎與我們聯繫～

參考資料：離奇！今年無颱風登陸樹倒傷人砸車竟逾80件

今年沒有颱風登陸，根據大安森林公園之友基金會統計，台灣竟發生80件以上的樹木倒伏、樹枝傷人毀車事故，甚至有多人因此死亡，日前北市信義區就又發生一起大樹倒塌砸壞車輛和民房事件。台北市副市長黃珊珊10日出席全台首屆樹木修剪交流活動開幕式時，對此數字大感震驚，直問「怎麼這麼多件？」

不當修剪種下樹木倒伏前因

大安森林公園之友基金會副執行長陳鴻楷解釋，許多事故可能都是不當修剪種的因，幾年後造成這些慘劇，其中有些是事前未察覺的病蟲害所致，要預防這些事故，修剪前的樹木結構檢查顯得格外重要；只要確實按照修剪的SOP，既能守護樹的健康，也能確保城市綠樹形成的美麗景觀，更重要的是維護人車安全。

陳鴻楷表示，近年城市裡的樹木常被不當修剪而斷頭，這錯誤的一刀造成綠樹肢體殘障、甚至成了枯木；最常見情形是錯誤下刀，除可能因為切除傷口過大，造成腐朽菌入侵，形成樹幹中空，要了樹的命，許多切口會長出不定芽，一段時間後長成不定枝，這些不定枝的結構相對不穩定，遇雨和強風很容易斷裂傷人毀車。

台北市政府和大安森林公園之友基金會也共同完成國內第一份完整的樹木修剪檢查表和紀錄表，可供各縣市政府和園藝廠商作為樹木修剪計畫SOP的參考，進一步為修剪品質、樹木健康把關。

大安森林公園之友基金會近年來引進日本樹木醫、美國ISA樹藝師等系統，期待透過先進國家的樹木養護技術，提升台灣樹木養護的技術與專業能力。

修剪有原則每年修剪總葉量以25%為上限

基金會表示，樹種不同，修剪的季節也不一樣；例如常綠樹要在春季萌芽前修剪，落葉樹就必須在休眠期修剪，才不會影響其生長。樹木的樹冠若有鳥巢或其他重要生物棲息，或有病蟲害傳播之虞等狀況，也應與主管機關討論確認後，再決定是否修剪。

至於樹木修剪幅度該如何拿捏？大原則是應該保持原有的樹形，萬萬不可施行「截幹」修剪，也就是平時常見斷頭式的錯誤修剪方式，不僅可能造成樹木因無法行光合作用或因腐朽菌入侵而死亡，即使存活，日後也會長出不定枝，恐斷落危及用路人安全。

修剪樹冠的概念也一樣，正確的樹冠修剪就像剪髮「打薄」一般，主要是疏剪枝葉，每年修剪以總葉量25%為上限，修剪完的樹高與樹冠冠幅也不改變，目的在增加樹冠的透光及透風度，並改善枝條結構，更能抵抗強風吹襲。

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trail marker trees 步道標記樹 L Tree

trail marker trees 步道標記樹 L Tree

北美印第安人會故意彎曲樹木作為道路上的標記，幫助他們在野外找到路與確認位置，作為導航之用

樹倒不再只限於颱風來襲時

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