Ecological Indicators最新文献

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Importance of the interplay between land cover and topography in modeling habitat selection
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112896
Haruki Natsukawa , Hiroki Yuasa , Masao Fujisaki , Takayuki Kobayashi , Hiroyoshi Maruyama , Katsuji Masukawa , Kouichi Nunokawa , Hitoshi Saito , Ginichi Sato , Luke J. Sutton , Makoto Takahashi , Takeshi Toba , Sumio Washizawa , Masafumi Yanagawa , Kunihiro Yoshida , Fabrizio Sergio
{"title":"Importance of the interplay between land cover and topography in modeling habitat selection","authors":"Haruki Natsukawa ,&nbsp;Hiroki Yuasa ,&nbsp;Masao Fujisaki ,&nbsp;Takayuki Kobayashi ,&nbsp;Hiroyoshi Maruyama ,&nbsp;Katsuji Masukawa ,&nbsp;Kouichi Nunokawa ,&nbsp;Hitoshi Saito ,&nbsp;Ginichi Sato ,&nbsp;Luke J. Sutton ,&nbsp;Makoto Takahashi ,&nbsp;Takeshi Toba ,&nbsp;Sumio Washizawa ,&nbsp;Masafumi Yanagawa ,&nbsp;Kunihiro Yoshida ,&nbsp;Fabrizio Sergio","doi":"10.1016/j.ecolind.2024.112896","DOIUrl":"10.1016/j.ecolind.2024.112896","url":null,"abstract":"<div><div>Anthropogenic land cover change is one of the greatest threats to the persistence of organisms. Therefore, identifying and safeguarding optimal land covers for declining organisms is a major challenge of the Anthropocene. Priority land covers are typically identified through habitat selection studies. These traditionally use land cover and/or topographic features as separate, additive predictors of organismal occurrence, despite the fact that each land cover is superimposed on specific topographic features, such as elevation or slope, which may affect its attractiveness. Here, we tested the importance of considering the largely overlooked interplay between land cover and topography, using as a model a golden eagle <em>Aquila chrysaetos</em> population which is sharply declining due to human-induced land cover alteration. We found that the overlay of a key land cover type (old-growth forest) on underlying terrain known to be favorable for the population (steep slopes at higher elevations than the nest) dramatically increased its attractiveness. Conversely, the matching of the same land cover with unfavorable topography (gentle slopes at lower elevations) deteriorated its attractiveness for the population. Thus, underlying topography acted as the major determinant of land cover suitability for the eagle population. The conservation implications could be profound, because modeling land cover <em>per se</em> could waste conservation resources on low quality sites (old-growth forest on gentle terrain at low elevations) with unlikely benefits for the threatened eagle population. We expect topographic modulators of land cover quality to be more common than previously appreciated in many or most study systems, as numerous organisms inhabiting terrestrial and aquatic environments, regardless of taxonomic group, exhibit selectivity for specific topographic features and specific land cover types. In conclusion, we encourage modelers to take more into account underlying modulators that may drive differences in quality within the same land cover. This would make wildlife-habitat models more realistic, improve their applicability, and enhance the cost-effectiveness of conservation efforts.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112896"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variation in the diversity and composition of tree-related microhabitats across climate and human impact gradients on a tropical mountain
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112927
Giovanni Bianco , Andreas Hemp , Matthias Schleuning
{"title":"Variation in the diversity and composition of tree-related microhabitats across climate and human impact gradients on a tropical mountain","authors":"Giovanni Bianco ,&nbsp;Andreas Hemp ,&nbsp;Matthias Schleuning","doi":"10.1016/j.ecolind.2024.112927","DOIUrl":"10.1016/j.ecolind.2024.112927","url":null,"abstract":"<div><div>Tree-related microhabitats (TReMs) have been proposed as important indicators of biodiversity to guide forest management. However, their application has been limited mostly to temperate ecosystems, and it is largely unknown how the diversity of TReMs varies along environmental gradients. In this study, we assessed the diversity of TReMs on 180 individual trees and 44 plots alongside a large environmental gradient on Kilimanjaro, Tanzania. We used a typology adjusted to tropical ecosystems and a tree-climbing protocol to obtain quantitative information on TreMs on large trees and dense canopies. We computed the diversity of TReMs for each individual tree and plot and tested how TReM diversity was associated with properties of individual trees and environmental conditions in terms of climate and human impact. We further used non-metric multidimensional scaling (NMDS) to investigate the composition of TReM assemblages alongside the environmental gradients. We found that diameter at breast height (DBH) and height of the first branch were the most important determinants of TReM diversity on individual trees, with higher DBH and lower first branch height promoting TReM diversity. At the plot level, we found that TReM diversity increased with mean annual temperature and decreased with human impact. The composition of TReMs showed high turnover across ecosystem types, with a stark difference between forest and non-forest ecosystems. Climate and the intensity of human impact were associated with TReM composition. Our study is a first test of how TReM diversity and composition vary along environmental gradients in tropical ecosystems. The importance of tree size and architecture in fostering microhabitat diversity underlines the importance of large veteran trees in tropical ecosystems. Because diversity and composition of TReMs are sensitive to climate and land-use effects, our study suggests that TReMs can be used to efficiently monitor consequences of global change for tropical biodiversity.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112927"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial transition and obstacle factor diagnosis based on the evaluation of the quality of arable land use in plain Lake Areas: A case study of the Dongting Lake region
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112881
Jingyi Zhang , Fan Yang , Ning Duan , Bohong Zheng , Suwen Xiong , Yanmei Xu
{"title":"Spatial transition and obstacle factor diagnosis based on the evaluation of the quality of arable land use in plain Lake Areas: A case study of the Dongting Lake region","authors":"Jingyi Zhang ,&nbsp;Fan Yang ,&nbsp;Ning Duan ,&nbsp;Bohong Zheng ,&nbsp;Suwen Xiong ,&nbsp;Yanmei Xu","doi":"10.1016/j.ecolind.2024.112881","DOIUrl":"10.1016/j.ecolind.2024.112881","url":null,"abstract":"<div><div>As a critical grain-producing region in the middle and lower reaches of the Yangtze River Plain in China, the quality of arable land use (QALU) in the plain lake areas is essential for maintaining regional food security. This study develops an interactive analytical framework from the dual perspectives of riverine ecological constraints and socioeconomic structural fluctuations, termed the “environmental pressure-utilization intensity-output efficiency” framework. Employing the ESTDA model and the obstacle degree model, the study assesses the QALU in the Dongting Lake region from 2000 to 2020, quantifying spatiotemporal transitions and identifying key obstacle factors. The aim is to provide a theoretical foundation and scientific support for a deeper understanding of QALU dynamics. The findings reveal that (1) QALU demonstrates a spatial distribution characterized by lower levels in peripheral areas and higher levels in central areas. With declining environmental pressures, the primary factors influencing QALU in the plain lake areas shift towards utilization intensity and output efficiency. (2) QALU shows a trend toward spatiotemporal coordination, with transitions exhibiting both spatial lock-in and dynamic characteristics strongly associated with the spatial features of the plain lake areas. (3) The primary obstacle factors gradually shift from natural resource endowments to socioeconomic structures, highlighting the urgent need for policy interventions to improve QALU. The study concludes that enhancing QALU in the plain lake areas requires an integrated approach that harmonizes natural and socioeconomic structures with tailored strategies to achieve sustainable arable land use.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112881"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A multi-source data fusion method to retrieve soil moisture dynamics and its influencing factors analysis in the ecological zone of the eastern margin of the Tibetan Plateau
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112877
Siyu Wang , Kexin Lv , Jun Ma , Qun’ou Jiang , YuFei Ren , Feng Gao , Nizami Syed Moazzam
{"title":"A multi-source data fusion method to retrieve soil moisture dynamics and its influencing factors analysis in the ecological zone of the eastern margin of the Tibetan Plateau","authors":"Siyu Wang ,&nbsp;Kexin Lv ,&nbsp;Jun Ma ,&nbsp;Qun’ou Jiang ,&nbsp;YuFei Ren ,&nbsp;Feng Gao ,&nbsp;Nizami Syed Moazzam","doi":"10.1016/j.ecolind.2024.112877","DOIUrl":"10.1016/j.ecolind.2024.112877","url":null,"abstract":"<div><div>Accurate soil moisture monitoring is crucial for understanding the role of hydrological processes in the climate system within the ecological region in the Eastern Margin Ecotone of the Qinghai-Tibetan Plateau (EMETP). This study proposed a data fusion method to acquire soil moisture with high resolution (1 km) and more accuracy. This study combines the fine-scale (1 km) spatial details of soil moisture obtained from active microwave data with the broader-scale (5 km) soil moisture information derived from passive microwave data in both V-polarization and H-polarization modes. The results showed that the fusion results based on V-polarization data were better than that of H-polarization data. The root mean square error (RMSE) is 0.0410, and the correlation coefficient is 0.8809 With the Geodetector, we found that the spatial pattern of soil moisture in the EMETP was influenced by multiple interacting factors. Among these, the interactions between the Normalized Difference Vegetation Index (NDVI) and elevation, as well as NDVI and soil type, showed the strongest influence on the spatial distribution of soil moisture. In addition, the brightness temperature and root mean square height of the surface were the most influential parameters for the retrieval model based on SMAP data and sentinel-1 data, respectively. The conclusions provide a valuable reference for the water resources estimation and management in the region of the Tibetan Plateau.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112877"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Restoration and evaluation for severed streams in high-density urban areas based on a multi-objective framework: A case study of Heping Stream in Nanjing
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112883
Fang Yuhao , Hou Qinghe , Cheng Yuning , Cao Yilun , Zhang Xiaohan , Wang Yong
{"title":"Restoration and evaluation for severed streams in high-density urban areas based on a multi-objective framework: A case study of Heping Stream in Nanjing","authors":"Fang Yuhao ,&nbsp;Hou Qinghe ,&nbsp;Cheng Yuning ,&nbsp;Cao Yilun ,&nbsp;Zhang Xiaohan ,&nbsp;Wang Yong","doi":"10.1016/j.ecolind.2024.112883","DOIUrl":"10.1016/j.ecolind.2024.112883","url":null,"abstract":"<div><div>Numerous severed streams that emerge during rapid urbanization has been negatively impacting regional water systems and urban environments. Traditional restoration efforts are prone to focus on water quality, overlooking the complex of urban severed stream as natural-social ecosystems. However, current literature indicates a lack of systematic restoration methods and post-implementation evaluations tailored to severed streams, which adversely affects water resource management and sustainable urban development. This study bases on research of the severed streams in Nanjing’s Hexi New District to develop methods for the restoration and evaluation of severed streams in high-density urban areas. Taking the Heping Stream as a case study, it took three years to complete a full-process study encompassing the design, implementation, and post-occupancy evaluation of the restoration of the severed stream. We developed a multi-objective framework, including five measures for the restoration of severed streams, along with performance evaluation indicators from environmental, social, and economic perspectives to compare the state of the severed-stream before and after the restoration. So as to assess the effectiveness of the restoration methods and to put forward suggestions for the improvement of the restoration measures. The results showed that the method had a positive effect on the quality of the water environment, public evaluation, capital investment and energy consumption. Some of the environmental performance indicators were significantly improved after the restoration, especially the dissolved oxygen content, water flow. Most of the social performance indicators were better after the restoration than before. In terms of economic performance indicators, the use of photovoltaic energy resulted in significant savings in electricity and pumping costs. Performance evaluation confirmed comprehensive benefits of the method, with Run off Control, Waterfalls Construction and Riverbank Ecological Restoration being most effective. To improve the benefits of restoration, diverse strategies should be combined together, including runoff control, artificial wetlands, vegetated buffers, and riverbank restoration. This research can support the optimization of future restoration measures and scientific decision-making in urban severed-stream restoration.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112883"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inequity in accessibility to urban parks in environmental gentrification areas based on Multi-G3SFCA: A case study of Wuhan’s main urban districts
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112899
Zixuan Deng, Ling Ning
{"title":"Inequity in accessibility to urban parks in environmental gentrification areas based on Multi-G3SFCA: A case study of Wuhan’s main urban districts","authors":"Zixuan Deng,&nbsp;Ling Ning","doi":"10.1016/j.ecolind.2024.112899","DOIUrl":"10.1016/j.ecolind.2024.112899","url":null,"abstract":"<div><div>Equitable access to urban parks is essential for promoting social fairness and sustainable urban development. However, in the context of urban renewal, environmental gentrification has exacerbated inequities in urban park accessibility. Although research on green space equity is relatively rich, studies focusing on inequities in urban park accessibility in environmental gentrification areas and their influencing factors remain limited. This study aims to analyse inequities in urban park accessibility in gentrified areas and explore the effect of physical spatial and socioeconomic factors on these disparities. With Wuhan’s main urban districts as the study area, environmental gentrification areas were identified using bivariate spatial autocorrelation analysis. An improved three-step floating catchment area(Multi-G3SFCA) method was used to assess the inequities in urban park accessibility across residential communities, and the Gini coefficient and Lorenz curve were used to quantify overall inequity in environmental gentrification areas. Finally, the RF-SHAP method was utilised to analyse the factors influencing accessibility inequities among residential communities. The results indicated that: (1) Environmental gentrification in Wuhan’s main urban districts primarily occurs in lakeside and riverside areas. The average Gini coefficients for community and pocket parks were 0.953 and 0.994, respectively, indicating severe inequity. (2) Physical spatial factors (63%) contributed to inequities in urban park accessibility more than socioeconomic factors (37%). Proximity to rail transit and commercial centres contributed 38% and 22% to inequities, respectively, making them the primary determinants. (3) Although socioeconomic factors had a relatively minor overall effect, they directly influenced inequities and interacted with physical spatial factors. Elements such as the proportion of the ageing population and income levels play a notable role. This study enriches the existing research on inequities in urban park accessibility in environmental gentrification areas. It provides valuable insights for the effective management and planning of urban parks in the context of environmental urban renewal and promotes the equitable development of urban green public spaces.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112899"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatiotemporal assessment of the cumulative exergy demand of agricultural greenhouse production with industrial symbiosis
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112904
Farzaneh Rezaei , Vanessa Burg , Hamidreza Solgi , Stefanie Hellweg , Ramin Roshandel
{"title":"Spatiotemporal assessment of the cumulative exergy demand of agricultural greenhouse production with industrial symbiosis","authors":"Farzaneh Rezaei ,&nbsp;Vanessa Burg ,&nbsp;Hamidreza Solgi ,&nbsp;Stefanie Hellweg ,&nbsp;Ramin Roshandel","doi":"10.1016/j.ecolind.2024.112904","DOIUrl":"10.1016/j.ecolind.2024.112904","url":null,"abstract":"<div><div>While agricultural greenhouses facilitate out-of-season production, they face criticism due to their considerable resource consumption and consequential negative environmental repercussions. Resource use varies based on location, meteorological conditions, agricultural practices, and greenhouse technology. This study evaluates resource consumption of greenhouse systems by quantifying the cumulative exergy demand (CExD) of 1 kg of greenhouse tomatoes for every production month, considering geographical locations of projected greenhouses in Switzerland, cultivation practices (staggered and non-staggered), and seasonal weather variations throughout the year. Moreover, the effect of implementing Industrial Symbiosis (IS) opportunities on potential CExD reduction is explored. The findings indicate that in case of a planting and growing period from September to July instead of February to November, the annual average CExD of 1 kg tomato increases by 43 % in the Mittelland region (e.g. Bern). Furthermore, depending on cultivation periods, the CExD for a kilogram of tomatoes harvested in the same area in November could reach 14 times higher than in July, showing the temporal variability of resource consumption in greenhouse agriculture. Utilizing waste heat and CO<sub>2</sub> from nearby potential suppliers can reduce the CExD by 60 % compared to conventional greenhouses heated by fossil fuels. Policymakers can use the presented outcomes to assess local policies in relation to resource efficiency, quantified as life cycle exergy in this paper.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112904"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial optimization of agricultural production from the perspective of “Greater Food Concept” in Yangzhou, China
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112805
Xin Li , Xin Xu , Ru Meng Yin
{"title":"Spatial optimization of agricultural production from the perspective of “Greater Food Concept” in Yangzhou, China","authors":"Xin Li ,&nbsp;Xin Xu ,&nbsp;Ru Meng Yin","doi":"10.1016/j.ecolind.2024.112805","DOIUrl":"10.1016/j.ecolind.2024.112805","url":null,"abstract":"<div><div>Global food security continues to face serious challenges. The “Greater Food” perspective can guarantee regional food security and the availability of basic agricultural products. However, there is still a lack of an appropriate methodology to optimize the spatial agricultural production system under the concept of “greater food.” In this study, we quantitatively analyzed agricultural production space’s quality and spatial distribution characteristics using multi-scale fusion and ecological niche suitability models. The results showed that The overall level of agricultural production function in Yangzhou was high, with firm spatial heterogeneity, high in the southeast and low in the southwest bounded by the line of Gaoyou Lake. The distribution pattern was closely related to the land use status, urban development, topography, and spatial functional positioning of the national territory. The natural quality of agricultural production was better, and the spatial form was more regular and compact. However, due to the coercion of urbanization and industrialization development, the overall ecological location suitability was average. The suitability around the built-up areas, Gaoyou Lake, Baoying Lake, and the Yangtze River was generally low. Based on the results of the comprehensive evaluation of agricultural production functions and ecological suitability, it could be divided into four areas: core protection area, integration and optimization area, comprehensive improvement area, and restricted development area. We plan to propose a classification and optimization strategy accordingly. The method of this study synthesized the multifunctionality and suitability of land use for agricultural production space identification. In this way, it may provide innovative ideas for delineating agricultural production space in economically developed areas, which could guide the optimization of agricultural production space with high quality.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112805"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Landslide susceptibility evaluation and determination of critical influencing factors in eastern Sichuan mountainous area, China
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-12-01 DOI: 10.1016/j.ecolind.2024.112911
Lin Zhang , Zhengxi Guo , Shi Qi , Tianheng Zhao , Bingchen Wu , Peng Li
{"title":"Landslide susceptibility evaluation and determination of critical influencing factors in eastern Sichuan mountainous area, China","authors":"Lin Zhang ,&nbsp;Zhengxi Guo ,&nbsp;Shi Qi ,&nbsp;Tianheng Zhao ,&nbsp;Bingchen Wu ,&nbsp;Peng Li","doi":"10.1016/j.ecolind.2024.112911","DOIUrl":"10.1016/j.ecolind.2024.112911","url":null,"abstract":"<div><div>Landslide susceptibility evaluation and determination of critical influencing factors is a prerequisite for preventing hazardous risks, especially in landslide-prone mountainous areas. However, in densely vegetated Southwest mountainous areas, identifying assessment approach of shallow landslides susceptibility and their major inducing factors is still a huge challenge. To address this challenge, we applied five advanced machine learning models (Logistic Regression Model, Generalized Additive Model, Random Forest Model, Support Vector Machine Model, Artificial Neural Network Model) to assess the spatial distribution of shallow landslide susceptibility, considering several relevant factors that affect landslide occurrence. These factors include geological, topographic and vegetation factors, as well as four new vegetation factors: stock volume, stand density, average tree age, and stand types. Furthermore, we employed SHAP algorithm and Structural Equation Models to quantify the relative importance and explanatory power of these factors on shallow landslide susceptibility and to clarify the interaction mechanisms among various factors in Huaying Mountain. The results shown that Random Forest Model proves to be the most accurate (95.1 %) in assessing the spatial distribution of shallow landslides susceptibility, followed by the Artificial Neural Network model (78.6 %), the Support Vector Machine model (69.8 %), the Generalized additive model (68.1 %) and the Logistic Regression model (67.6 %).The area with high susceptible landslide possibility was 25.3 km<sup>2</sup> occupying 14.8 % of the study region, it is mainly distributed in the west of Tianchi Lake, southeast of Huaying City and west of the study area, along with Xiangyu Railway. Geographical environment and vegetation features were found to significantly explain 67.4 % and 32.6 % of the total effects in shallow landslides susceptibility, respectively. Specifically, the spatial distribution of shallow landslides susceptibility were primarily influenced by geological engineering rock group, distance to faults、stand types and distance to river. Geographical environment factors could indirectly affect changes in vegetation features, thereby indirectly affecting the spatial distribution of shallow landslides susceptibility. Findings from this research could be helpful for scientific decision-making and technical assistance for early warning, prevention, and control of rainstorm-induced landslides in highly vegetation covered areas.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112911"},"PeriodicalIF":7.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrological dynamics and its impact on wetland ecological functions in the Sanjiang Plain, China 中国三江平原水文动态及其对湿地生态功能的影响
IF 7 2区 环境科学与生态学
Ecological Indicators Pub Date : 2024-11-28 DOI: 10.1016/j.ecolind.2024.112878
Xingyu Zeng, Hongqiang Zhang, Boqi Zhou, Xueshi Liang, Ling Cui, Haiyan Li, Yi Qu, Chunyu Luo
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