林分结构特征决定了长春市城市森林生态系统的多功能性

IF 6 2区 环境科学与生态学 Q1 ENVIRONMENTAL STUDIES Urban Forestry & Urban Greening Pub Date : 2024-12-16 DOI:10.1016/j.ufug.2024.128647
Jinsheng Yan, Juan Zhang, Qi Wang, Xingyuan He, Haifeng Zheng
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引用次数: 0

摘要

系统理论强调立场结构属性影响整体功能。然而,这些属性与生态系统多功能性之间的关系,特别是在城市森林中,仍然知之甚少。采用回归分析和随机森林模型,评价了长春市林分结构特征19项指标对城市森林生态系统多功能性的影响。其结构特征可分为林分结构、草本层结构和结构异质性。多功能评估基于碳封存、降雨拦截、空气温度降低、湿度增加、PM2.5降低和噪音降低。结果表明,林分结构异质性和林分密度均显著增强了林分的多功能性,其中林分结构异质性的影响最大,其次是林分结构和草本盖度。因此,优化林分密度、增加结构异质性、保持充足的草本盖度是改善城市森林多功能性的关键。这些发现对城市森林管理和提高城市环境质量具有重要意义。
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Stand structural characteristics determine ecosystems multifunctionality of urban forests in Changchun City, Northeast China
Systems theory highlights that stand structural attributes influence overall functioning. However, the relationship between these attributes and ecosystem multifunctionality, particularly in urban forests, remains poorly understood. This study uses regression analysis and a random forest model to assess the effects of 19 indicators of stand structure characteristics on ecosystem multifunctionality of urban forests in Changchun, a representative forest city in northern China. The structural characteristics are categorized into stand structure, herbaceous layer structure, and structural heterogeneity. Multifunctionality is evaluated based on carbon sequestration, rainfall interception, air temperature reduction, humidity enhancement, PM2.5 reduction, and noise reduction. Results indicate that both stand structural heterogeneity and stand density significantly enhance multifunctionality, with structural heterogeneity having the greatest impact, followed by stand structure and herbaceous cover. Thus, optimizing stand density, increasing structural heterogeneity, and maintaining sufficient herbaceous cover are crucial for improving urban forest multifunctionality. These findings offer important implications for urban forest management and the enhancement of urban environmental quality.
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来源期刊
CiteScore
11.70
自引率
12.50%
发文量
289
审稿时长
70 days
期刊介绍: Urban Forestry and Urban Greening is a refereed, international journal aimed at presenting high-quality research with urban and peri-urban woody and non-woody vegetation and its use, planning, design, establishment and management as its main topics. Urban Forestry and Urban Greening concentrates on all tree-dominated (as joint together in the urban forest) as well as other green resources in and around urban areas, such as woodlands, public and private urban parks and gardens, urban nature areas, street tree and square plantations, botanical gardens and cemeteries. The journal welcomes basic and applied research papers, as well as review papers and short communications. Contributions should focus on one or more of the following aspects: -Form and functions of urban forests and other vegetation, including aspects of urban ecology. -Policy-making, planning and design related to urban forests and other vegetation. -Selection and establishment of tree resources and other vegetation for urban environments. -Management of urban forests and other vegetation. Original contributions of a high academic standard are invited from a wide range of disciplines and fields, including forestry, biology, horticulture, arboriculture, landscape ecology, pathology, soil science, hydrology, landscape architecture, landscape planning, urban planning and design, economics, sociology, environmental psychology, public health, and education.
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