Ecology and resilient infrastructure最新文献

Development of Surface Velocity Measurement Technique without Reference Points Using UAV Image 基于无人机图像的无参考点地表速度测量技术的发展

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.022

Jun H. Lee, Byungman Yoon, Seo Jun Kim

引用次数: 1

Calculation (Computation) of Habitat Suitability Index for Swimming Fish Species Living in Miho Stream in Geum River Water System 锦江水系米湖溪游鱼生境适宜性指数的计算

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.009

J. Hur, Kyung-hoon Kim, Jong Jin Lee

{"title":"Calculation (Computation) of Habitat Suitability Index for Swimming Fish Species Living in Miho Stream in Geum River Water System","authors":"J. Hur, Kyung-hoon Kim, Jong Jin Lee","doi":"10.17820/ERI.2021.8.1.009","DOIUrl":"https://doi.org/10.17820/ERI.2021.8.1.009","url":null,"abstract":"In this study, fish and flow surveys were conducted at 12 survey points to calculate the fish habitat suitability index of Miho Stream in the Geum River Water System. The field surveys were conducted four times from September 2019 to May 2020. The results show the presence of 8 families, 37 species, and 5,754 individuals. The number of water purification species that preferred waters with a low flow rate was the highest. The habitat suitability index was calculated according to the Washington Department of Fish and Wildlife method based on the populations collected at various water depths and flow rate sections and the flow rate survey results. For the dominant species, Zacco platypus and swimming species, the results were compared by calculating at Gasan Bridge and Palgye Bridge at the upper stream. The single species showed no significant difference between the upstream and downstream at water depths of 0.1 0.5 m and flow rates of 0.2 0.5 m/s. The species swimming ability was similarly calculated at water depths of 0.2 0.5 m and flow rates of 0.2 0.5 m/s. The dominant species, Pyramid, had a wide range of physical habitats. The habitat suitability index between the swimming species was similarly calculated. These results can be effectively used as basic data for calculating the environmental ecological flow rate and establishing a river restoration plan of the Miho Stream.","PeriodicalId":415343,"journal":{"name":"Ecology and resilient infrastructure","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115696097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Analysis of Effect on Camera Distortion for Measuring Velocity Using Surface Image Velocimeter 表面图像测速仪测量速度对相机畸变的影响分析

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.001

Jun H. Lee, Byungman Yoon, Seo Jun Kim

{"title":"Analysis of Effect on Camera Distortion for Measuring Velocity Using Surface Image Velocimeter","authors":"Jun H. Lee, Byungman Yoon, Seo Jun Kim","doi":"10.17820/ERI.2021.8.1.001","DOIUrl":"https://doi.org/10.17820/ERI.2021.8.1.001","url":null,"abstract":"A surface image velocimeter (SIV) measures the velocity of a particle group by calculating the intensity distribution of the particle group in two consecutive images of the water surface using a cross-correlation method. Therefore, to increase the accuracy of the flow velocity calculated by a SIV, it is important to accurately calculate the displacement of the particle group in the images. In other words, the change in the physical distance of the particle group in the two images to be analyzed must be accurately calculated. In the image of an actual river taken using a camera, camera lens distortion inevitably occurs, which affects the displacement calculation in the image. In this study, we analyzed the effect of camera lens distortion on the displacement calculation using a dense and uniformly spaced grid board. The results showed that the camera lens distortion gradually increased in the radial direction from the center of the image. The displacement calculation error reached 8.10% at the outer edge of the image and was within 5% at the center of the image. In the future, camera lens distortion correction can be applied to improve the accuracy of river surface flow rate measurements.","PeriodicalId":415343,"journal":{"name":"Ecology and resilient infrastructure","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127643164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of the Effects of Continuous Erosion Control Dams on Benthic Macroinvertebrate Communities Before and After the Rainy Season 雨季前后连续防蚀坝对底栖大型无脊椎动物群落影响的比较

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.054

C. An, J. Han, Jae Bin Hyun, Jun-Kil Choi, H. Lee

引用次数: 1

Analysis of Applicability of the Detention in Trunk Sewer for Reducing Urban Inundation 干渠截流对减少城市淹没的适用性分析

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.44

Sung Ho Lee, Jung soo Kim, Seo Jun Kim

{"title":"Analysis of Applicability of the Detention in Trunk Sewer for Reducing Urban Inundation","authors":"Sung Ho Lee, Jung soo Kim, Seo Jun Kim","doi":"10.17820/ERI.2021.8.1.44","DOIUrl":"https://doi.org/10.17820/ERI.2021.8.1.44","url":null,"abstract":": The flood prevention capacity of drainage facilities in urban areas has weakened because of the increase in impervious surface areas downtown owing to rapid urbanization as well as localized heavy rains caused by climate change. Detention can be installed in trunk sewers and linked to existing drainage facilities for the efficient drainage of runoff in various urban areas with increasing stormwater discharge and changing runoff patterns. In this study, the concept of detention in trunk sewers, which are storage facilities linked to existing sewer pipes, was applied. By selecting a virtual watershed with a different watershed shape, the relationship between the characteristic factors of detention in the trunk sewer and the design parameters was analyzed. The effect of reducing stormwater runoff according to the installation location and capacity of the reservoir was examined. The relationship between the installation location and the capacity of the detention trunk sewer in the Dowon district of the city of Yeosu, South Korea was verified. The effects of the existing water runoff reduction facility and the detention trunk sewer were also compared and analyzed. As a result of analyzing the effects of reducing internal inundation, it was found that the inundation area decreased by approximately 66.5% depending on the installation location of the detention trunk sewer. The detention trunk sewer proposed in this paper could effectively reduce internal inundation in urban areas.","PeriodicalId":415343,"journal":{"name":"Ecology and resilient infrastructure","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131050846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Changes in Landscape Characteristics of Stream Habitats with the Construction and Operation of River-Crossing Structures in the Geum-gang River, South Korea 韩国金刚江渡河设施的建设和运营对河流生境景观特征的影响

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.064

Dana Kim, Cheol Min Lee, Hwirae Kim, Giyoung Ock, Kang-Hyun Cho

引用次数: 0

The Continuous Measurement of CO2 Efflux from the Forest Soil Surface by Multi-Channel Automated Chamber Systems 用多通道自动室系统连续测量森林土壤表面CO2流出量

Ecology and resilient infrastructure Pub Date : 2021-03-01 DOI: 10.17820/ERI.2021.8.1.032

S. Joo, M. Yim, Jae-Won Ju, Ho-Yeon Won, Seon-deok Jin

引用次数: 0

A Feasibility Analysis of a Low Noise and Dust Suction Type Pavement Cutter 低噪声吸尘式路面切割机的可行性分析

Ecology and resilient infrastructure Pub Date : 2020-12-01 DOI: 10.17820/ERI.2020.7.4.274

Kyoon-Tai Kim

引用次数: 0

Characteristics of Roadside Non-point Pollution and Applicability of Reduction Facilities in Paldang Water Source Protection Zone 八堂水源保护区路边非点源污染特征及减排设施的适用性

Ecology and resilient infrastructure Pub Date : 2020-12-01 DOI: 10.17820/ERI.2020.7.4.294

Hyejin Cho, Meeyoung Song

引用次数: 0

Human Thermal Environment Analysis with Local Climate Zones and Surface Types in the Summer Nighttime - Homesil Residential Development District, Suwon-si, Gyeonggi-do 夏夜地区气候带和地表类型的人体热环境分析——京畿道水原市住宅开发地区

Ecology and resilient infrastructure Pub Date : 2020-12-01 DOI: 10.17820/ERI.2020.7.4.227

H. Kong, Na-Rae Choi, Sookuk Park

引用次数: 1