The impact of coastal erosion on land cover changes in Muaragembong, Bekasi, Indonesia: a spatial approach to support coastal conservation

IF 1.7 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Journal of Coastal Conservation Pub Date : 2024-03-01 DOI:10.1007/s11852-024-01045-2

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Abstract

Muaragembong is a Citarum River estuarine ecosystem that has a lowland coast, a delta environment, tidal mudflats, and mangroves along the coast. Muaragembong has recently experienced severe coastal erosion in the last decade due to mainly rapid land cover changes in coastal areas, generating sediment imbalances and diminishing coastal resistance to wave action. In this study, the combination of multispectral bands from Landsat images and GIS approaches supported by ground observation was used to determine satellite-based coastline and land cover changes from 1990 to 2020. With a maximum rate of 132.55 m/year, Desa Pantai Bahagia is the most vulnerable area to coastal erosion. Meanwhile, coastal accretion has occurred at Desa Harapanjaya on a constant basis, with a peak accretion rate of 52.13 m/year. The combined extents of eroded and accreted shorelines along the coast of Muaragembong are approximately − 1,707.09 and + 512.14 hectares, respectively. Since the 1980s, the extensive clearance of mangroves for shrimp and fish ponds, along with the decreased sediment input into the estuary due to dam construction, are likely to have had a significant impact on coastal erosion in Muaragembong. Since current measures are insufficient to deal with ongoing coastal erosion, a comprehensive approach and long-term solutions are required for sustainable coastal zone management. This study provides a detailed analysis of shoreline changes over the last three decades and their impact on land cover change, enabling conservation practitioners to allocate their resources more wisely and efficiently to the most critical and prioritized coastal conservation regions.

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印度尼西亚勿加泗 Muaragembong 海岸侵蚀对土地覆盖变化的影响：支持海岸保护的空间方法

摘要 Muaragembong 是一个西塔伦河河口生态系统，沿岸有低地海岸、三角洲环境、潮汐泥滩和红树林。近十年来，由于沿海地区土地植被的快速变化，造成沉积物失衡，海岸对海浪的抵抗力减弱，马六甲近来经历了严重的海岸侵蚀。在这项研究中，利用大地遥感卫星图像的多光谱波段和地面观测支持下的地理信息系统方法，确定了 1990 年至 2020 年期间基于卫星的海岸线和土地覆被变化情况。Desa Pantai Bahagia 的最大侵蚀率为 132.55 米/年，是最易受海岸侵蚀影响的地区。与此同时，Desa Harapanjaya 的海岸不断增高，最高增高速度为 52.13 米/年。无量山沿岸被侵蚀和增生的海岸线总面积分别约为 - 1,707.09 公顷和 + 512.14 公顷。自 20 世纪 80 年代以来，为建造虾塘和鱼塘而对红树林进行的大面积砍伐，以及因修建水坝而减少对河口的沉积物输入，都可能对无穷岛的海岸侵蚀产生了重大影响。由于目前的措施不足以应对持续的海岸侵蚀，因此需要采取综合方法和长期解决方案来进行可持续的海岸带管理。本研究详细分析了过去三十年海岸线的变化及其对土地覆被变化的影响，使保护工作者能够更明智、更有效地将资源分配到最关键、最优先的海岸保护区域。

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来源期刊

Journal of Coastal Conservation ENVIRONMENTAL SCIENCES-MARINE & FRESHWATER BIOLOGY

CiteScore

3.60

自引率

4.80%

发文量

期刊介绍： The Journal of Coastal Conservation is a scientific journal for the dissemination of both theoretical and applied research on integrated and sustainable management of the terrestrial, coastal and marine environmental interface. A thorough understanding of both the physical and the human sciences is important to the study of the spatial patterns and processes observed in terrestrial, coastal and marine systems set in the context of past, present and future social and economic developments. This includes multidisciplinary and integrated knowledge and understanding of: physical geography, coastal geomorphology, sediment dynamics, hydrodynamics, soil science, hydrology, plant and animal ecology, vegetation science, biogeography, landscape ecology, recreation and tourism studies, urban and human ecology, coastal engineering and spatial planning, coastal zone management, and marine resource management.