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Louisiana's Tiger Island wildfire ruled arson, officials say_我的网站

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一 |     近日,在新余市分宜县亚林中心年珠实验林场,工作人员发现国家近危级珍稀植物——水晶兰。

二 |     The largest wildfire in Louisiana state history has been determined to have been arson-caused, state officials said Saturday. The Louisiana Department of Agriculture and Forestry reported Saturday that it is asking for the public's help in finding a suspect in the Tiger Island Fire. No details were provided on exactly how investigators believe the blaze started. The Tiger Island Fire, which broke in southwestern Louisiana's Beauregard Parish on Aug. 22, has so far burned 48.43 square miles and damaged or destroyed at least 20 homes and structures. It remains only 50% contained.

Louisiana's Tiger Island wildfire ruled arson, officials say              
Damage from the Tiger Island Fire in Louisiana, the largest wildfire in state history. September 2023.                    Louisiana Department of Agriculture and Forestry             
At the fire's height, it forced the evacuation of about 1,200 people from the town of Merryville, located near the Texas border. Mandatory evacuation orders were lifted earlier this week. There have been no reports of injuries or fatalities from the blaze.       Louisiana, which has been contending with extreme summer heat and drought, saw an unprecedented 441 wildfires in August, officials said, stretching the state's resources thin. Most of southwest Louisiana has been classified by the U.S. Drought Monitor as being in "exceptional drought.""This is unprecedented," Mike Strain, the commissioner for Louisiana's Department of Agriculture and Forestry, told reporters last month. "We've never had to fight this many fires simultaneously and at this duration."                  A $2,000 reward has been offered for information leading to an arrest by the Louisiana Forestry Association.                                  。图源:“江西发布”微信公众号  水晶兰,这个名字如梦如幻,在生物界中也有着独特而神秘的地位。它是武侠小说“幽灵之花”的原型,其形酷似一株洁白无瑕的水晶,散发着诡异而迷人的光芒。水晶兰虽然分布广泛,但其个体数量在同一地区却极为很少,是名副其实的珍稀植物。  当天上午,年珠实验林场的工作人员在林区野外作业时,无意中发现路边生长着几株奇特植物,植物高10至15厘米,为白色半透明鳞片,花朵微微下垂。后经辨认,该植物为水晶兰。  据了解,水晶兰虽然名字带“兰”却不是兰花,而属于鹿蹄草科植物。多年生,草本,腐生;茎直立,单一,不分枝,高10厘米至30厘米,全株无叶绿素,白色,肉质,干后变黑褐色。水晶兰八九月份开花,主要分布于俄罗斯、日本、印度、东南亚、北美等国家及地区;在我国主要分布于山西、云南、四川、贵州、广西等省份。

三 |   水晶兰对海拔、气候、土壤等生长环境尤为苛刻,分布在中高海拔的针阔混交林和阔叶林下,大多生长在海拔800米至3200米的幽暗潮湿的环境里,只有在人迹罕至、阳光稀缺、生态环境非常好且落叶重重的深山丛林里才有机会见到,非常罕至。

四 |   水晶兰经过千万年的进化,叶子已经蜕变成白色的鳞片,浑身晶莹剔透如水晶一般,没有一点叶绿素,无法进行光合作用,依靠腐烂的植物获得养分。因其特殊的腐生方式,水晶兰被称作“幽冥之花”,或称“梦兰花”“腐生花”等,是一种无毒植物。在武侠小说中,水晶兰被神化成能够起死回生的仙草,要么被视为具有灵异力量,可以无形中致人毙命的邪物,甚至将它的幽香也描写得令人毛骨悚然。其实水晶兰既没有回天的魔力,更不会伤人致命,而是一味性草味淡,可医治体虚久咳的民间良药。  水晶兰虽属多年生草本腐生植物,即其正常生命周期超过两年,但一年365天,有300多天都隐藏在地下,只有40多天露出地面,开花结果。如果碰到极端天气,或者受到环境影响,它们露出地面的时间还会更短。

五 | 水晶兰在2013年列入《中国生物多样性红色名录-高等植物卷》,属于近危物种。  水晶兰的种子异常微小,几乎没有任何营养物质,且根部完全寄生在其他植物的根上。这种生物特性使得水晶兰在普通的人工环境中很难存活。  “水晶兰对生长环境要求特别苛刻,这表明大岗山地区生态环境保护的效果很好,同时也对水晶兰的地域分布研究提供了参考。”亚林中心年珠实验林场科技人员袁毅杰称。  (透视社综合央视新闻、云南网、大江网、贵州日报、大皖新闻、南宁晚报、“江西发布”微信公众号报道)  编辑:李煦、廖明娟(实习)  校对:李旭颖  审核:龚紫陌。

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