辽东半岛南部滑坡的空间分布及多因素驱动机制

IF 2.4 3区环境科学与生态学 Q2 ECOLOGY

Frontiers in Ecology and Evolution Pub Date : 2024-01-11 DOI:10.3389/fevo.2023.1339265

Yuanyuan Li, Defeng Zheng, Chenglin Yan, Zehao Wang, Tingkai Nian

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引用次数: 0

摘要

沿海地区的特点是城市化程度高，也是地质活动最活跃和高度敏感的地区。受全球气候变化的影响，沿海地区山体滑坡频发，严重影响了该地区社会经济的可持续发展。因此，研究滑坡的空间分布及其驱动因素，对沿海地区地质灾害防灾减灾工作和优化生态安全格局具有重要的现实意义。本研究以辽东半岛南部为研究区域，分析了滑坡的空间分布特征和影响机制。首先应用 Getis-Ord Gi*、核密度分析技术和 Ripley's K 函数，探讨了研究区不同尺度滑坡的空间分布特征。然后，我们采用信息值法检验了驱动因素与滑坡之间的联系关系。最后，我们利用地理探测器揭示了驱动因素对滑坡的潜在影响和相互作用。结果表明(1）辽东半岛南部滑坡表现出较强的空间集聚特征，具有空间尺度效应；（2）滑坡高易发区主要集中在研究区南部丘陵区和北部山区；（3）信息值法揭示了滑坡驱动因素的最优组合。(4）因子检测分析表明，地貌类型是滑坡空间分布的主要驱动因素（q 值为 39.10%）。(5) 交互作用检测器表明，所有驱动因素对的交互作用表现出增强效应，这不是简单的叠加效应，而是双变量和非线性的。自然因素和人类活动的共同影响对滑坡的发展和分布具有更实质性的影响。该研究为辽东半岛南部地区滑坡预防措施的实施和生态环境保护政策的制定提供了指导。

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Spatial distributions and multi-factor driving mechanism of landslide in southern Liaodong Peninsula

Coastal areas are characterized by high levels of urbanization and also the most active and highly sensitive to geological activities. Due to the impact of global climate change, landslides occur frequently in coastal areas, which have significantly impacted the sustainable socio-economic development of the region. Therefore, studying the spatial distribution of landslides and the factors that drive them holds immense practical significance for the geohazards prevention and mitigation work and optimization of ecological security patterns in coastal areas. This study takes the southern Liaodong Peninsula as the study area and analyzes the spatial distribution characteristics and influence mechanism of landslides. We first applied the Getis-Ord Gi*, kernel density analysis techniques, and Ripley’s K function to explore the spatial distribution characteristics of landslides in the study area at different scales. Then, we employed the information value method to test for the linkage relationships between the driving factors and landslides. Finally, we utilized the geographical detector to reveal the potential impacts and interaction of the driving factors on landslides. The results showed that: (1) landslides in the Southern Liaodong Peninsula exhibit strong spatial clustering characteristics, and have a spatial scale effect; (2) the high susceptibility areas are mainly concentrated in the southern hilly regions and the mountainous regions in the northern parts of the study area; (3) The information value method reveals that there is an optimal combination of factors driving landslides. (4) The factor detector analysis reveals that the primary driver of landslide spatial distribution is the geomorphological types (q-value of 39.10%). (5) The interaction detector indicates that the interplay of all driving factor pairs exhibited an enhanced effect, which is not a simple superposition effect but bivariate and non-linear. The collective influence of natural factors and human activities holds a more substantial influence over landslide development and distribution. The research offers guidance for the execution of landslide prevention initiatives and the establishment of preservation policies for the ecological environment in the southern Liaodong Peninsula region.

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来源期刊

Frontiers in Ecology and Evolution Environmental Science-Ecology

CiteScore

4.00

自引率

6.70%

发文量

1143

审稿时长

12 weeks

期刊介绍： Frontiers in Ecology and Evolution publishes rigorously peer-reviewed research across fundamental and applied sciences, to provide ecological and evolutionary insights into our natural and anthropogenic world, and how it should best be managed. Field Chief Editor Mark A. Elgar at the University of Melbourne is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics and the public worldwide. Eminent biologist and theist Theodosius Dobzhansky’s astute observation that “Nothing in biology makes sense except in the light of evolution” has arguably even broader relevance now than when it was first penned in The American Biology Teacher in 1973. One could similarly argue that not much in evolution makes sense without recourse to ecological concepts: understanding diversity — from microbial adaptations to species assemblages — requires insights from both ecological and evolutionary disciplines. Nowadays, technological developments from other fields allow us to address unprecedented ecological and evolutionary questions of astonishing detail, impressive breadth and compelling inference. The specialty sections of Frontiers in Ecology and Evolution will publish, under a single platform, contemporary, rigorous research, reviews, opinions, and commentaries that cover the spectrum of ecological and evolutionary inquiry, both fundamental and applied. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria. Through this unique, Frontiers platform for open-access publishing and research networking, Frontiers in Ecology and Evolution aims to provide colleagues and the broader community with ecological and evolutionary insights into our natural and anthropogenic world, and how it might best be managed.