三峡水库库首区域景观格局对松材线虫病危害的影响

doi:10.13287/j.1001-9332.202602.028

应用生态学报 ›› 2026, Vol. 37 ›› Issue (2): 583-590.doi: 10.13287/j.1001-9332.202602.028

三峡水库库首区域景观格局对松材线虫病危害的影响

付彦蓉¹, 曾煜¹, 吴宇^1,2,3*, 任顺⁴, 刘检明⁵, 古剑⁶, 彭刚志⁷

¹三峡大学生物与制药学院, 湖北宜昌 443002;
²湖北省三峡地区生态保护与治理国际联合研究中心, 湖北宜昌 443002;
³三峡库区生态环境教育部工程研究中心, 湖北宜昌 443002;
⁴三峡大学计算机与信息学院, 湖北宜昌 443002;
⁵湖北省林业勘察设计院, 武汉 430079;
⁶宜昌市森林病虫防治检疫站, 湖北宜昌 443001;
⁷宜昌三峡大老岭自然保护区管理局, 湖北宜昌 443000

收稿日期:2025-07-21 接受日期:2025-12-30 出版日期:2026-02-18 发布日期:2026-08-18
通讯作者: * E-mail: wuyu1@ctgu.edu.cn
作者简介:付彦蓉, 女, 1999年生, 硕士研究生。主要从事景观尺度森林病虫害研究。E-mail: 1356095272@qq.com
基金资助:
国家自然科学基金青年项目(32101323)

Effects of landscape pattern on the damage of pine wilt disease in the head region of the Three Gorges Reservoir

FU Yanrong¹, ZENG Yu¹, WU Yu^1,2,3*, REN Shun⁴, LIU Jianming⁵, GU Jian⁶, PENG Gangzhi⁷

¹College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, Hubei, China;
²Hubei International Scientific and Technological Center of Ecological Conservation and Management in the Three Gorges Area, Yichang 443002, Hubei, China;
³Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, Ministry of Education, Yichang 443002, Hubei, China;
⁴College of Computer and Information Technology, China Three Gorges University, Yichang 443002, Hubei, China;
⁵Forestry Prospect & Design Institute of Hubei Province, Wuhan 430079, China;
⁶Yichang Forest Disease, Pest Control and Quarantine Station, Yichang 443001, Hubei, China;
⁷Administration Bureau of Dalaoling Nature Reserve in Yichang Three Gorges, Yichang 443000, Hubei, China

Received:2025-07-21 Accepted:2025-12-30 Online:2026-02-18 Published:2026-08-18

摘要/Abstract

摘要： 松材线虫病区域内的扩散与景观的空间异质性有关,探究景观格局对松材线虫病危害的影响,有助于构建景观生态安全格局进而实现区域的长效防治。本研究基于无人机遥感数据和森林资源清查数据,利用相关性分析方法和线性混合效应模型的层次分割,分别从景观水平和斑块水平分析了三峡水库库首区域景观格局对松材线虫病危害的影响。结果表明: 景观水平下,斑块面积越大、景观破碎化程度越高,松材线虫病危害越低,且面积特征和聚集度特征分别解释了疫病密度的45.9%和29.3%。斑块水平下,松树纯林(宿主)斑块的破碎化程度与松材线虫病疫病密度呈显著正相关,且斑块形状越规则,松材线虫病的危害越严重;乡土树种(非宿主)斑块的面积和连通性也与松材线虫病疫病密度呈显著正相关;农田和水域斑块(非宿主)的聚集度和连通性与疫病密度呈显著负相关。精细划分斑块类别,综合考虑不同斑块的景观生态过程,有助于准确把握疫病发生和传播的规律。

关键词: 松材线虫病, 景观格局, 媒介昆虫, 宿主斑块, 景观指数

Abstract: The spread of pine wilt disease (PWD) is related to the spatial heterogeneity of the landscape within the affected area. Investigating the effects of landscape patterns on PWD severity can facilitate the construction of landscape ecological security patterns and contribute to long-term regional prevention and control strategies. Based on unmanned aerial vehicle (UAV) remote sensing data and forest resource inventory data, we adopted correlation analysis method and hierarchical segmentation in the linear mixed-effects model to evaluate the impacts of landscape patterns on PWD at both landscape and patch levels in the head region of the Three Gorges Reservoir. The results showed that larger patch sizes and higher landscape fragmentation were associated with lower PWD severity at the landscape level. Area characteristics and aggregation explained 45.9% and 29.3% of the variation in disease den-sity, respectively. At the patch level, the fragmentation of pure pine forest (host) patches was significantly positively correlated with disease density, while more regular patch shapes were associated with greater PWD severity. The area and connectivity of native dominant forest (non-host) patches were significantly positively correlated with disease density. The aggregation and connectivity of farmland and water (non-host) patches were significantly negatively correlated with the disease density. Therefore, fine-scale patch classification and integrated consideration of the landscape ecological processes in different patches would be crucial for accurately understanding the occurrence and spread of the PWD.

Key words: pine wilt disease, landscape pattern, vector insect, host patch, landscape index

付彦蓉, 曾煜, 吴宇, 任顺, 刘检明, 古剑, 彭刚志. 三峡水库库首区域景观格局对松材线虫病危害的影响[J]. 应用生态学报, 2026, 37(2): 583-590.

FU Yanrong, ZENG Yu, WU Yu, REN Shun, LIU Jianming, GU Jian, PENG Gangzhi. Effects of landscape pattern on the damage of pine wilt disease in the head region of the Three Gorges Reservoir[J]. Chinese Journal of Applied Ecology, 2026, 37(2): 583-590.

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三峡水库库首区域景观格局对松材线虫病危害的影响

Effects of landscape pattern on the damage of pine wilt disease in the head region of the Three Gorges Reservoir

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