Interphase modeling of sedimentation rate using the GIS-based modified universal soil loss equation

IF 2.3 Q2 REMOTE SENSING Applied Geomatics Pub Date : 2024-10-20 DOI:10.1007/s12518-024-00599-y
Azmeri, Muhammad Iqbal, Muhammad Fauzi, Maimun Rizalihadi
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Abstract

The upstream area of the watershed has high rainfall, resulting in large volumes of runoff and peak discharge. The runoff discharge causes soil erosion, transporting soil particles by the flow and eventually settling as sedimentation. This sedimentation leads to river siltation and narrowing. Additionally, high-flow discharge causes turbulence and flooding. This research aimed to predict sedimentation rates due to land erosion in the watershed using the GIS-based Modified Universal Soil Loss Equation (MUSLE). The study was conducted in the Krueng Peuto sub-watershed in Indonesia. The interphase modeling revealed that the highest land sedimentation rate in the Krueng Peuto watershed occurred in 2015, with the sediment of 40,503.10 Mg.y−1, while the least was in 2013, with 2,006.52 Mg.y−1 of sediment. The results indicate that surface runoff has the most significant influence on land sedimentation. The rate of soil loss is closely related to land conservation practices, with poorly vegetated land contributing the most to surface runoff. Water flow velocity and its destructive power erode the soil into tiny grains, transported and deposited as sedimentation in the river. The MUSLE’s capability in identifying erosion-prone areas and predicting sediment yield based on rainfall events is crucial for effective sediment management planning. Implementing long-term land conservation measures is essential to preserve land capacity effectively.

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利用基于地理信息系统的修正通用土壤流失方程建立沉降率相间模型
流域上游地区降雨量大,导致大量径流和峰值排水。径流造成土壤侵蚀,土壤颗粒随水流带走,最终沉淀为泥沙。泥沙淤积导致河道淤塞和变窄。此外,大流量排放还会导致湍流和洪水泛滥。这项研究旨在利用基于地理信息系统的修正通用土壤流失方程 (MUSLE) 预测流域内土地侵蚀造成的沉积率。研究在印度尼西亚的 Krueng Peuto 小流域进行。相间模型显示,Krueng Peuto 流域最高的土地沉积率出现在 2015 年,沉积物为 40,503.10 兆克/年,而最低的沉积率出现在 2013 年,沉积物为 2,006.52 兆克/年。结果表明,地表径流对土地沉积的影响最大。土壤流失率与土地保护措施密切相关,植被较差的土地对地表径流的影响最大。水流速度及其破坏力会将土壤侵蚀成细小颗粒,并以沉积物的形式输送和沉积到河流中。MUSLE 能够识别易受侵蚀的区域,并根据降雨情况预测泥沙产量,这对有效的泥沙管理规划至关重要。实施长期的土地保护措施对于有效保护土地容量至关重要。
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来源期刊
Applied Geomatics
Applied Geomatics REMOTE SENSING-
CiteScore
5.40
自引率
3.70%
发文量
61
期刊介绍: Applied Geomatics (AGMJ) is the official journal of SIFET the Italian Society of Photogrammetry and Topography and covers all aspects and information on scientific and technical advances in the geomatics sciences. The Journal publishes innovative contributions in geomatics applications ranging from the integration of instruments, methodologies and technologies and their use in the environmental sciences, engineering and other natural sciences. The areas of interest include many research fields such as: remote sensing, close range and videometric photogrammetry, image analysis, digital mapping, land and geographic information systems, geographic information science, integrated geodesy, spatial data analysis, heritage recording; network adjustment and numerical processes. Furthermore, Applied Geomatics is open to articles from all areas of deformation measurements and analysis, structural engineering, mechanical engineering and all trends in earth and planetary survey science and space technology. The Journal also contains notices of conferences and international workshops, industry news, and information on new products. It provides a useful forum for professional and academic scientists involved in geomatics science and technology. Information on Open Research Funding and Support may be found here: https://www.springernature.com/gp/open-research/institutional-agreements
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