高温热浪和虫食对校园植物的作用强度及其与叶功能性状的关系

doi:10.17520/biods.2024283

生物多样性 ›› 2025, Vol. 33 ›› Issue (1): 24283. DOI: 10.17520/biods.2024283 cstr: 32101.14.biods.2024283

• 研究报告: 植物多样性 • 上一篇下一篇

高温热浪和虫食对校园植物的作用强度及其与叶功能性状的关系

李若月, 杨小超(), 郝占庆, 贾仕宏^*()()

西北工业大学生态环境学院, 陕西省秦岭生态智能化监测与保护重点实验室, 西安 710129

收稿日期:2024-07-01 接受日期:2024-12-10 出版日期:2025-01-20 发布日期:2025-01-19
通讯作者: * E-mail: shihong.jia@nwpu.edu.cn
基金资助:
国家自然科学基金(32001120)

The intensity of heat waves and insect herbivory on campus plants and their relationship with leaf functional traits

Ruoyue Li, Xiaochao Yang(), Zhanqing Hao, Shihong Jia^*()()

School of Ecology and Environment, Northwestern Polytechnical University; Shaanxi Key Laboratory of Qinling Ecological Intelligent Monitoring and Protection, Northwestern Polytechnical University, Xi’an 710129, China

Received:2024-07-01 Accepted:2024-12-10 Online:2025-01-20 Published:2025-01-19
Contact: * E-mail: shihong.jia@nwpu.edu.cn
Supported by:
National Natural Science Foundation of China(32001120)

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摘要/Abstract

摘要：

近年来, 高温热浪等极端天气事件频发。2022年, 我国出现大范围持续高温天气, 综合强度为1961年有完整气象观测记录以来最强。高温热浪事件不仅直接影响植物生长, 而且可能通过改变虫食强度间接影响植物命运。本研究聚焦西北工业大学校园内常见的11种木本植物, 测量了97个个体共计2,358片叶片受高温热浪和虫食的影响强度, 及叶面积、比叶面积、叶干物质含量与叶厚4种叶功能性状。研究对比了高温热浪和虫食作用强度在不同树种之间的差异, 以探究各作用强度随叶功能性状的变化规律, 以及高温热浪和虫食作用强度之间的关系。研究发现: (1)日灼损伤频度、虫食率与虫食频度3个指标在物种之间存在显著差异。(2)日灼损伤频度与叶面积呈显著负相关关系, 与叶厚和叶干物质含量呈显著正相关关系; 虫食率和虫食频度均与叶干物质含量呈显著正相关关系, 与叶厚呈显著(或近显著)负相关关系, 虫食频度还与叶面积呈显著正相关关系。(3)叶片的虫食频度与日灼损伤频度之间存在显著负相关关系。本研究对于揭示极端气候下植物的响应与适应, 以及耐受高温热浪或虫食的园林树种选育具有一定参考价值。

关键词: 极端高温, 日灼, 植食作用, 叶片, 园林植物

Abstract

Aims: In recent years, extreme weather events, such as high-temperature heat waves, have become increasingly frequent. In 2022, China experienced widespread and prolonged high temperatures, marking the most intense heat wave since comprehensive meteorological records began in 1961. These high-temperature heat wave events not only directly affect plant growth, but may also indirectly affect plant fitness by altering the intensity of herbivory. This study aims to clarify interspecies differences in the intensity of high-temperature heat wave damage and herbivory, investigate their relationships with leaf functional traits, and explore the interactions between high-temperature heat wave effects and the intensity of herbivory.

Methods: This study focused on 11 common woody plant species on the campus of Northwestern Polytechnical University. Data were collected from 97 individuals, encompassing 2,358 leaves, to measure the intensity of sunburn damage and herbivory, alongside four leaf functional traits (leaf area, specific leaf area (SLA), leaf dry matter content (LDMC), and leaf thickness). One-way ANOVA was employed to assess interspecies differences in heat wave and herbivory intensity, while generalized linear mixed-effects model were used to identify patterns relating these intensities to leaf functional traits. Correlation between heat wave damage and herbivory intensity was also analyzed.

Results: (1) Significant interspecies differences were observed in sunburn damage frequency, herbivory rate and herbivory frequency. (2) The frequency of sunburn damage was negatively correlated with leaf area but positively correlated with leaf thickness and LDMC. Both herbivory rate and herbivory frequency were positively correlated with LDMC but negatively correlated with leaf thickness, while herbivory frequency also exhibited a positively correlation with leaf area. (3) A negative correlation was detected between herbivory frequency and sunburn damage frequency.

Conclusion: This study provides insights into responses of common woody plant species to extreme heat wave events and herbivory, identifies key leaf functional traits associated with these responses. Furthermore, it highlights the interplay between heat wave damage and herbivory intensity. The findings provide valuable guidance for understanding plant adaptation strategies under extreme climatic conditions and for selecting garden tree species that can withstand high-temperature heat waves or herbivory.

Key words: extreme heat, sunburn, herbivory, leaf, garden plants

李若月, 杨小超, 郝占庆, 贾仕宏 (2025) 高温热浪和虫食对校园植物的作用强度及其与叶功能性状的关系. 生物多样性, 33, 24283. DOI: 10.17520/biods.2024283.

Ruoyue Li, Xiaochao Yang, Zhanqing Hao, Shihong Jia (2025) The intensity of heat waves and insect herbivory on campus plants and their relationship with leaf functional traits. Biodiversity Science, 33, 24283. DOI: 10.17520/biods.2024283.

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链接本文: https://www.biodiversity-science.net/CN/10.17520/biods.2024283

https://www.biodiversity-science.net/CN/Y2025/V33/I1/24283

图/表 5

表1 研究选取的树种及其主要信息

Table 1 Tree species selected for the study and their key information

物种 Species	科 Family	生长型 Growth form	采集株数 Number of samples
日本晚樱 Prunus serrulata var. lannesiana	蔷薇科 Rosaceae	乔木 Tree	10
紫叶李 Prunus cerasifera ‘Atropurpurea’	蔷薇科 Rosaceae	乔木 Tree	9
长柄七叶树 Aesculus assamica	无患子科 Sapindaceae	乔木 Tree	10
全缘叶栾树 Koelreuteria bipinnata var. integrifoliola	无患子科 Sapindaceae	乔木 Tree	9
银杏 Ginkgo biloba	银杏科 Ginkgoaceae	乔木 Tree	10
女贞 Ligustrum lucidum	木樨科 Oleaceae	乔木 Tree	9
桃 Prunus persica	蔷薇科 Rosaceae	灌木 Shrub	8
紫丁香 Syringa oblata	木樨科 Oleaceae	灌木 Shrub	7
紫薇 Lagerstroemia indica	千屈菜科 Lythraceae	灌木 Shrub	7
石榴 Punica granatum	千屈菜科 Lythraceae	灌木 Shrub	10
木槿 Hibiscus syriacus	锦葵科 Malvaceae	灌木 Shrub	8

图1 高温热浪(a)和虫食(b)作用在叶片上的表现示例。(a)日本晚樱叶片; (b)女贞叶片。

Fig. 1 Examples of manifestations of high-temperature heat wave (a) and herbivory (b) effects on leaves. (a) The leaf of Prunus serrulata var. lannesiana; (b) The leaf of Ligustrum lucidum.

图2 不同树种之间日灼损伤率(a)、日灼损伤频度(b)、虫食率(c)、虫食频度(d)的差异(平均值 ± 标准误)。LL: 女贞; PC: 紫叶李; HS: 木槿; GB: 银杏; PP: 桃; KB: 全缘叶栾树; AA: 长柄七叶树; LI: 紫薇; SO: 紫丁香; PG: 石榴; PS: 日本晚樱。

Fig. 2 Differences in the sunburn damage rate (a), sunburn damage frequency (b), herbivory rate (c), and herbivory frequency (d) among different tree species (mean ± SE). LL, Ligustrum lucidum; PC, Prunus cerasifera ‘Atropurpurea’; HS, Hibiscus syriacus; GB, Ginkgo biloba; PP, Prunus persica; KB, Koelreuteria bipinnata var. integrifoliola; AA, Aesculus assamica; LI, Lagerstroemia indica; SO, Syringa oblata; PG, Punica granatum; PS, Prunus serrulata var. lannesiana.

图3 叶功能性状与高温热浪、虫食作用强度的关系。采用广义线性混合效应模型进行拟合, 其中显著的结果用预测的平均值(线) ± 95%置信区间(灰色阴影)表示, 虚线表示接近显著水平(0.05 < P < 0.1); 不显著的结果仅展示观测值(点)。

Fig. 3 Relationships of leaf functional traits with heat waves and intensity of herbivory effects. Generalized linear mixed-effects models were fitted, where significant results are indicated by the predicted mean (line) ± 95% confidence intervals (shaded in gray), the dotted line represents a near-significant level, and non-significant results only show the observations (points).

图4 日灼损伤频度与虫食率(a)和虫食频度(b)之间的关系。采用广义线性混合效应模型进行拟合, 其中显著的结果用预测的平均值(线) ± 95%置信区间(灰色阴影)表示, 不显著的结果仅展示观测值(点)。

Fig. 4 Relationship between sunburn damage frequency and herbivory rate (a) and herbivory frequency (b). Generalized linear mixed-effects models were fitted, where significant results are indicated by the predicted mean (line) ± 95% confidence intervals (shaded in gray), and non-significant results only show the observed values (points).

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高温热浪和虫食对校园植物的作用强度及其与叶功能性状的关系

The intensity of heat waves and insect herbivory on campus plants and their relationship with leaf functional traits

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