Comparison Analysis of Seepage Through Homogenous Embankment Dams Using Physical, Mathematical and Numerical Models DOI Creative Commons
Ahmed Mohammed Sami Al‐Janabi, Hayder Dibs,

Saad Sh. Sammen

et al.

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: June 8, 2024

Abstract Embankment dams have many advantages; however, they frequently develop seepage problems which may cause dams’ failure. In this study, comparison analysis of through embankment was conducted using three different methods, namely experimental tests, mathematical calculations and numerical modeling. Three homogeneous dam models with downstream drainage filters were considered. Results revealed that SEEP/W model is inappropriate to compute the water flow volume if there an intersection between line slope due appearance pipes. Numerical modeling based on software found be compatible rest physical models. The findings also demonstrated for all scenarios, both Casagrande equations produced lines closely matched observed lines. These results highlight significance managing line’s location ensure stability implementation horizontal drains.

Language: Английский

Exploring future ecosystem service changes and key contributing factors from a “past-future-action” perspective: A case study of the Yellow River Basin DOI
Kaili Zhang, Bin Fang, Zhicheng Zhang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171630 - 171630

Published: March 19, 2024

Language: Английский

Citations

29

Identification of ecological security patterns of alpine wetland grasslands based on landscape ecological risks: A study in Zoigê County DOI
Wanting Zeng, Zhengwei He, Wenqian Bai

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 928, P. 172302 - 172302

Published: April 7, 2024

Language: Английский

Citations

28

Carbon emission efficiency of land use in urban agglomerations of Yangtze River Economic Belt, China: Based on three-stage SBM-DEA model DOI Creative Commons
N. N. Zhang,

Fangcheng Sun,

Yuling Hu

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111922 - 111922

Published: March 1, 2024

Exploring regional differences in land use carbon emission efficiency (LUCE) and the path of collaborative reduction Yangtze River Economic Belt (YREB) are immense importance to achieve sustainable development. Firstly, based on estimation method emissions, this paper scientifically calculates Delta urban agglomeration (YRD), middle reaches (MRYR), Chengdu-Chongqing (CC) from 2010 2021 YREB. And each city agglomerations was obtained, which regarded as unexpected output evaluation index system. Secondly, three-stage SBM-DEA model used reveal LUCE its spatiotemporal characteristics different regions a static perspective. The empirical results second stage SFA showed that level economic development, urbanization rate, industrial structure, non-agricultural conversion rate agricultural land, scientific technological innovation government intervention had significant effects LUCE. By comparing values their decompositions first third various agglomerations, it found after eliminating environmental random factors, average ranking comprehensive technical (TE) changed YRD > MRYR CC due cross influence pure (PTE) scale (SE). Thirdly, Malmquist analyze change total factor productivity (TFPch) pattern dynamic It TFPch, progress (TC), (PEC) (SEC) three major all varying degrees increase adjustment. Finally, further impact progress, PTE SE LUCE, regression constructed with dependent variable, TC, PEC SEC independent variables. concluded main promote improvement whole trend changes closely related management level, technology structure above conclusions provide support for coordinated YREB perspective use, is conducive actively steadily promoting realization peak neutrality goals.

Language: Английский

Citations

25

Coexistence Perspectives: Exploring the impact of landscape features on aesthetic and recreational values in urban parks DOI Creative Commons
Junyi Li,

Ziluo Huang,

Zhipeng Zhu

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 162, P. 112043 - 112043

Published: April 19, 2024

Urban parks play a crucial role in providing social services and promoting the health well-being of residents. They serve not only as primary aesthetic spaces for urban residents but also venues recreational activities. Exploring strategies constructing that integrate landscape aesthetics value is essential. This approach will contribute to enhancing quality meet genuine needs However, there currently limited attention given related research. Based on this, study focuses Jinshan Park Fuzhou City, Fujian Province, China, investigate relationship between features coexistence recreation values parks. The research employed field observations questionnaire surveys assess explore their coexistence. Additionally, semantic segmentation other methods were introduced quantify features. Linear regression analysis was then applied further examine impact parks, well results revealed: (1) moderate, pattern activities park follows sequence passing‐by behaviors > static dynamic behaviors, with user demographic being middle-aged elderly individuals. be improved. In comparison, degree behavior relatively high. (2) are influenced by natural elements, green view index playing more role. Recreational jointly spatial, natural, construction, facility elements. Concerning different types spatial elements have significant public followed Passing‐by most construction (3) facilitated presence water, an appropriately index, diverse plant community structure. Improving sky openness can effectively promote behavior. openness, garden architecture, service facilities. provides scientific theoretical foundation model reference guide both values.

Language: Английский

Citations

17

Dual-Branch Convolutional Neural Network and Its Post Hoc Interpretability for Mapping Mineral Prospectivity DOI

Fanfan Yang,

Renguang Zuo, Yihui Xiong

et al.

Mathematical Geosciences, Journal Year: 2024, Volume and Issue: 56(7), P. 1487 - 1515

Published: March 22, 2024

Language: Английский

Citations

11

Monitoring Agricultural Land Loss by Analyzing Changes in Land Use and Land Cover DOI Creative Commons

Morakot Worachairungreung,

Nayot Kulpanich,

Kunyaphat Thanakunwutthirot

et al.

Emerging Science Journal, Journal Year: 2024, Volume and Issue: 8(2), P. 687 - 699

Published: April 1, 2024

The agricultural sector's output holds paramount significance for the global population, serving as an indispensable resource survival and consumption. Consequently, alterations in landscapes bear substantial implications world's food supply. objectives of this research are to investigate depletion land, with a specific focus on Samut Songkhram Province—an agriculturally prominent region Thailand renowned supplying seafood fruits Bangkok. By employing advanced remote sensing change detection methods incorporating indices like NDVI, NDWI, NDBI, study meticulously analyzed land-use changes. outcomes were rigorously scrutinized through supervised classification, validated by on-site inspections, corroborated data from pertinent agencies. Findings revealed that had sustained its prominence constituting around 70% province's total area over past two decades. However, expanse has undergone persistent transformation during last 20 years. Notably, most surge was observed conversion land urban developed areas, particularly zones Amphawa District, followed Mueang Bang Khonthi districts. This investigation illuminates consistent downward trend vital source sustenance Thailand's population community. Doi: 10.28991/ESJ-2024-08-02-020 Full Text: PDF

Language: Английский

Citations

10

Optimisation of ecological security patterns in ecologically transition areas under the perspective of ecological resilience − a case of Taohe River DOI Creative Commons
Jie Yang, Shiying Wang, Jie Zhou

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112315 - 112315

Published: July 1, 2024

High-intensity land development has led to numerous ecological problems, severely threatening regional sustainable development. Resilience is key maintaining This study focuses on the Taohe River Basin and constructs an resilience evaluation model based framework of ecosystem adaptability, resistance, recovery from perspective resilient functions. Using software such as InVEST Fragstats, assesses spatiotemporal changes in Basin. Based pattern, sources were identified, resistance surfaces constructed, corridors extracted, thereby establishing security pattern for During period, level showed a gradual upward trend. A total 33 source areas accounting 27.57 % area Seventy with length 6478.63 km average 92.55 km. Combining topography, background conditions, current urban status Basin, "two screens, two corridors, five areas, multiple points" was along corresponding optimization suggestions. The research results are great significance optimizing spatial layout, security, promoting integrated Additionally, they provide new ideas assessing resilience.

Language: Английский

Citations

10

Assessing the growing threat of heat stress in the North Africa and Arabian Peninsula region connected to climate change DOI
Mohammed Magdy Hamed, Alaa Adel Jasim Al-Hasani, Mohamed Salem Nashwan

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 447, P. 141639 - 141639

Published: March 3, 2024

Language: Английский

Citations

9

Construction of an ecological security pattern in Jiangnan water network area based on an integrated Approach: A case study of Gaochun, Nanjing DOI Creative Commons
Nannan Wang,

Yan Zhao

Ecological Indicators, Journal Year: 2023, Volume and Issue: 158, P. 111314 - 111314

Published: Dec. 6, 2023

Rapid urbanization in the Jiangnan Water Network region has resulted degradation of ecosystems and interruption ecological functions. The security pattern (ESP) is crucial for balancing economic development protection within an area. In this study, we focused on a representative Gaochun water network area devised comprehensive ESP methodology. This study combined importance ecosystem services (ESI), landscape connectivity (Con), sensitivity (ESS), starting with analysis sources. Furthermore, both natural human factors are emphasized when constructing resilience surface. Nighttime lighting data (NTL), risk index (ERI), land intensity factor (CI) were used to calibrate resistance values. Finally, circuit theory was applied determine optimal path, width, strategy points corridors. results indicate We identified 39 source areas, 74 corridors, 33 pinch points, 45 barriers. Based this, overall spatial optimization plan “five cores, three patches, belts, multiple points” obtained. aimed explore optimize approach regional characteristics, providing new pathways decision support future construction patterns region.

Language: Английский

Citations

21

Insight into land cover dynamics and water challenges under anthropogenic and climatic changes in the eastern Nile Delta: Inference from remote sensing and GIS data DOI
Youssef M. Youssef, Khaled S. Gemail,

Hafsa M. Atia

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 913, P. 169690 - 169690

Published: Dec. 30, 2023

Language: Английский

Citations

21