智能监测和人工神经网络建模揭示了孔隙水压力、降雨量和风速对树木稳定性的综合影响

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening Pub Date : 2025-09-21 DOI:10.1016/j.ufug.2025.129072

Nisa Leksungnoen , Apiniti Jotisankasa , Ponthep Meunpong , Washirawat Praphatsorn , Korakot Tanyacharoen , Podpakhon Toikaew

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引用次数: 0

摘要

热带城市环境中树木的稳定性受到强降雨、强风和土壤条件的显著影响。然而，在监测工作中往往忽略了根区孔隙水压力（PWP）的作用。本研究研究了一棵倾斜的树在大雨和强风下的稳定性，使用智能传感器测量倾斜、倾斜率（每小时）、根区PWP、降雨量和风速。结果表明，倾斜与PWP之间存在显著的相关性（r = 0.75），强调了土壤饱和度在削弱根系锚固中的作用。倾斜率与降雨量呈中等相关性（r = 0.49），与风速（r = 0.25）及降雨量和PWP的综合作用（r = 0.30）呈弱相关性（r = 0.30）。人工神经网络（ANN）模型以降雨量、风速、孔隙水压力（PWP）和降雨量× PWP作为预测倾斜和倾斜率的输入，其均方误差（MSE）为0.0020，R²为0.526。这些结果强调了根区PWP在树木稳定性中的关键作用，并证明了基于广泛可用的环境数据和张力计测量的预测模型在城市环境中树木不稳定性预警中的潜力。

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Smart monitoring and ANN modeling reveal the combined influence of pore-water pressure, rainfall, and wind speed on tree stability

Tree stability in tropical urban environments is significantly influenced by heavy rainfall, strong winds, and soil conditions. However, the role of pore-water pressure (PWP) in the root zone is often overlooked in monitoring efforts. This study investigates the stability of a leaning tree subjected to heavy rain and strong winds, using smart sensors to measure tilt, tilt rate (hourly), root-zone PWP, rainfall, and wind speed. Results revealed a notable correlation between tilt and PWP (r = 0.75), emphasizing the role of soil saturation in weakening root anchorage. Tilt rate showed a moderate correlation with rainfall (r = 0.49) and a weaker correlation with wind speed (r = 0.25) and the combined effect of rainfall and PWP (r = 0.30). An artificial neural network (ANN) model, trained with rainfall, wind speed, pore-water pressure (PWP), and rainfall × PWP as inputs to predict tilt and tilt rate, achieved a mean squared error (MSE) of 0.0020 and an R² of 0.526. These results highlight the critical role of root-zone PWP in tree stability and demonstrate the potential of predictive models based on widely available environmental data and tensiometer measurement for early warning of tree instability in urban environments.

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来源期刊

Urban Forestry & Urban Greening FORESTRY-

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.