| 杨淑娇,王有兵,李金亮,杨建军,姜健发,胡昌平.云南樟在大理州的空间分布格局及受干扰程度[J].林业调查规划,2026,51(4):129-134 |
| 云南樟在大理州的空间分布格局及受干扰程度 |
| Spatial Distribution Pattern and Disturbance Level of Camphora glandulifera in Dali Prefecture of Yunnan Province |
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| DOI： |
| 中文关键词: 云南樟 资源状况 分布格局 干扰程度 云南大理 |
| 英文关键词: Camphora glandulifera resource status distribution pattern disturbance level Dali Prefecture of Yunnan Province |
| 基金项目:大理白族自治州樟科植物资源调查研究(20242901A020001);云南省珍稀濒危野生植物茶果樟监测;大理鸡足山生物多样性本底调查(20232901A020003);2026年野生植物调查监测项目(2026-109). |
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| 中文摘要: |
| 为掌握云南樟在大理州的资源状况,通过文献资料收集及样线调查法,对云南樟径级结构、空间分布、适生区模拟及受干扰情况进行分析。结果表明,云南樟龄级以中龄级为主(54.55%),幼苗及幼树数量较少(13.5%),径级结构呈“纺锤形”,处于稳定生长阶段,但种群更新不良;云南樟在大理州的水平分布范围较广,12个县市均有分布,垂直空间上主要集中分布于2 300~2 500 m范围的中山湿性常绿阔叶林中(46.1%),主要伴生优势树种为高山锥和元江锥;云南樟在大理州的高适生区主要集中于中西部的大理市、漾濞县、永平县及巍山县,全州高适生区面积为6 152.9 km2,占大理州土地面积的20.9%;云南樟受人为干扰程度较高,受中度及以上干扰等级株数占比达43.7%,特别是受乔木经济林种植影响较大。云南樟在大理州的资源状况呈现分布广、数量大、受干扰严重的态势,并且存在种群更新不良的现象,应加强对野生资源及生境的保护,并开展云南樟优良种质资源的选育工作,人工促进其种群恢复。 |
| 英文摘要: |
| To understand the resource status of Camphora glandulifera in Dali Prefecture, the diameter class structure, spatial distribution, suitable habitat simulation, and disturbance conditions were analyzed through literature review and line-transect surveys. The results showed that the age class of C.glandulifera was dominated by middle-aged individuals (54.5%), while the numbers of seedlings and saplings trees were relatively low (13.5%). The diameter class structure exhibited a “spindle-shaped” pattern, indicating stable growth but poor population regeneration. The horizontal distribution of C.glandulifera in Dali Prefecture was extensive, covering all 12 counties and cities. Vertically, it was primarily concentrated in mid-mountain humid evergreen broad-leaved forests between 2300 and 2500 m altitude (46.1%), with the dominant companion species being Castanopsis delavayi and Castanopsis orthacantha. The highly suitable habitats for C.glandulifera in Dali Prefecture were primarily located in the central and western regions, including Dali City, Yangbi County, Yongping County and Weishan County, with a total area of 6 152.9 km2, accounting for 20.9% of the prefecture′ s land area. The species was subjected to significant human disturbance, with 43.7% of individuals experiencing moderate or higher levels of disturbance, particularly due to the cultivation of commercial timber forests. Overall, the resource status of C.glandulifera in Dali Prefecture was characterized by wide distribution, large quantities, severe disturbances, and poor population regeneration. This paper suggests that the protection of wild resources and habitats should be strengthened, and selective breeding of high-quality germplasm resources should be conducted to artificially promote population recovery. |
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