水土生物工程（SWBE）修复浅层滑坡边坡稳定时间演化——以意大利托斯卡纳西北部为例

IF 3.9 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering Pub Date : 2025-02-28 DOI:10.1016/j.ecoleng.2025.107570

Federico Preti , Andrea Dani , Yamuna Giambastiani , Emanuele Giachi

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引用次数: 0

摘要

1996年6月19日在意大利托斯卡纳西北部的Versilia发生了众所周知的极端洪水事件，造成数目惊人的山崩和泥石流、严重的洪水和15人死亡。托斯卡纳地区资助土壤和水生物工程（SWBE）干预措施，以恢复边坡稳定性和减轻土壤侵蚀。1998年在托斯卡纳首次应用这种基于自然的解决方案（NBS）修复的最大滑坡是pomzzana滑坡。通过2023年滑坡监测调查，研究了AdS1-SWBE恢复滑坡和ads2 -未恢复滑坡两种不同情况下的植被演化状态和边坡稳定状况。根据1998-2013-2023年的历史监测数据，对现有主要树种（栗树、桤木和角木）的根系进行了表征，并用于评估植被对边坡稳定性的影响。根据现场获得的根面积比（RAR）值，以及考虑到木槽墙劣化的土壤粘聚力值，我们通过SSAP 2010™软件计算安全系数（FS）。利用滑坡反分析得到的入渗深度对边坡稳定性的各种情景进行评价，并结合事件降雨量得到边坡稳定性的时间演化。该研究证实了SWBE干预措施在边坡稳定方面的技术有效性，例如在恢复由降雨引发的浅层滑坡方面，该研究还显示了植被演变对边坡稳定性和生态演替的积极影响，随着土壤加固的增加，引发了自然的本地物种演替。结果表明，通过植被发育与SWBE技术的结合，SWBE恢复工程加速了边坡的稳定过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Slope stability time evolution of a shallow landslide restored by Soil and Water Bioengineering (SWBE) techniques: A case study in Northwest Tuscany (Italy)

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Slope stability time evolution of a shallow landslide restored by Soil and Water Bioengineering (SWBE) techniques: A case study in Northwest Tuscany (Italy)

The well-known extreme flood event occurred on 19 June 1996 in Versilia, north-western Tuscany, Italy, causing an impressive number of landslides and debris flows, dramatic floods and 15 fatalities. The Tuscany Region financed Soil and Water Bioengineering (SWBE) interventions to restore slope stability and mitigate soil erosion. The Pomezzana landslide was the greatest one restored by such kind of Nature-Based Solutions (NBS) in 1998, applied in Tuscany for the first time.

The study presents the 2023 landslide monitoring surveys, concerning the vegetation evolution state and the slope stability conditions of two different situations: AdS1-SWBE restored landslide and AdS2-unrestored landslide. The root systems of the main tree species present (chestnut, alder, and hornbeam) have been characterised and used to evaluate the effects of vegetation on slope stability according to the historical monitoring 1998–2013-2023.

The Root Area Ratio (RAR) values obtained in the field, and therefore soil cohesion values also considering the deterioration of the wooden crib wall, drove us to calculate the Factor of Safety (FS) through SSAP 2010™ software. Various scenarios of slope stability were evaluated with the infiltration depth obtained with the landslide back analysis with the event rainfall obtaining the time evolution of the slope stability. The study confirms the technical effectiveness of the slope stabilisation of the SWBE interventions, as in the restoration of superficial landslides triggered by rainfall the research also shows the positive effects of vegetation evolution over slope stability and ecological succession, triggering natural native species succession with increasing soil reinforcement. The results show the SWBE restoration project hastened the slope stabilisation process through the combination of vegetation development and SWBE techniques.

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来源期刊

Ecological Engineering 环境科学-工程：环境

CiteScore

8.00

自引率

5.30%

发文量

293

审稿时长

57 days

期刊介绍： Ecological engineering has been defined as the design of ecosystems for the mutual benefit of humans and nature. The journal is meant for ecologists who, because of their research interests or occupation, are involved in designing, monitoring, or restoring ecosystems, and can serve as a bridge between ecologists and engineers. Specific topics covered in the journal include: habitat reconstruction; ecotechnology; synthetic ecology; bioengineering; restoration ecology; ecology conservation; ecosystem rehabilitation; stream and river restoration; reclamation ecology; non-renewable resource conservation. Descriptions of specific applications of ecological engineering are acceptable only when situated within context of adding novelty to current research and emphasizing ecosystem restoration. We do not accept purely descriptive reports on ecosystem structures (such as vegetation surveys), purely physical assessment of materials that can be used for ecological restoration, small-model studies carried out in the laboratory or greenhouse with artificial (waste)water or crop studies, or case studies on conventional wastewater treatment and eutrophication that do not offer an ecosystem restoration approach within the paper.