贵州现有国家重点保护野生植物257种|无套内射在线无码播放
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中新网贵阳11月17日电 (记者 周燕玲)记者17日从贵州省林业局获悉,贵州现有国家重点保护野生植物257种。

作为长江和珠江上游的重要生态屏障,贵州森林覆盖率超63%。为进一步精准掌握贵州资源本底,赋能野生植物高质量保护,2022年5月至2025年10月,贵州省林业局组织实施了“贵州省新增国家重点保护野生植物调查评估项目”,并同步开展了全省范围国家重点保护野生植物资源综合评估工作。
调查在沿习采用传统经典调查方法的基础上,引入无人机、RTK精确定位及专业调查软件开展调查。100余位科研人员组成9支调查队深入贵州88个县(市、区、特区)林区,累计行程数十万公里,实地调查点位超2万个,覆盖1066个乡镇,拍摄照片10余万张,调查目标物种居群和群落6942个,收集有效数据12702条。

调查梳理出贵州9个市(州)88个县的国家重点保护野生植物名录及分布信息。调查过程中还发现并发表了北盘江凤仙花、荔波野桐、荔波金丝桃、习水酢浆草、马岭河小苦荬、大娄山绣线梅和麻阳河紫菀7个植物新种。
此外,调查队在贵州荔波县众多座岩溶峰丛山顶,发现了以华南五针松、岩生翠柏和短叶黄杉等国家重点保护野生植物为主要建群种的“孤岛化”岩生针叶林,从山顶至山脚形成了高差仅200余米的小尺度自然植被垂直带,十分独特和罕见,对中国西南岩溶植被与珍稀濒危物种的环境响应机制等研究具有十分重要的价值和意义,引起学术界的关注。

此次调查也是贵州首次开展系统性的全省国家重点保护野生植物资源评估。调查评估基本掌握了贵州省国家重点保护野生植物的种类组成、资源数量、分布格局、受威胁因素和保护现状,并提出了保护方案,不仅为贵州省国家重点保护野生植物的科学管理提供了扎实的数据支撑,也促进了珍稀濒危物种的保护与发展。(完)
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