基于地图学和遥感影像的下沃尔图诺河(意大利南部)地貌变化和土地利用变化:初步结果

IF 0.4 Q4 GEOSCIENCES, MULTIDISCIPLINARY
Angelo Cusano, Sergio Lo Curzio, Paolo Magliulo, Filippo Russo, Ettore Valente
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引用次数: 0

摘要

从现有地形图的地貌分析中获得灵感,结合卫星图像(Landsat)和正射影像分析,对1875-2020年Volturno河下游河道的地貌变化进行了研究。观测到的河道几何变化主要落在河漫滩上,即局限于曲流区域。为了量化这些变化,测量了一些特定的形态计量参数,如通道的长度(L)、平均宽度(W)和弯曲指数(SI)。观察到的主要形态变化包括1929年至1954年期间河道严重变窄的阶段,以及1984年至2020年期间河道长度的减少。所获得的数据与其他作者在文献中报告的数据一致,他们已经确定了这些变化发生的精确时间阶段以及导致这些变化的可能原因,主要是人为原因。此外,对现有参考书目的分析以及对卫星图像的研究也揭示了同一研究区域内不同土地利用的重要变化,这些变化可能与水道的几何变化相一致。从1984年到2020年,土地利用的变化当然可以归因于城市化地区和水体的显著增加,而牺牲了农业地区。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Geomorphological changes and land-use variations of the Lower Volturno River (Southern Italy) by Cartography and Remote sensing imagery: preliminary results
Drawing inspiration from the geomorphological analysis of available topographic maps integrated with the analysis of satellite imagery (Landsat) and orthophotos, a study of the geomorphological changes experienced by the channel of the lower reach of the Volturno River during the period 1875-2020 was performed. The observed geometric variations of the channel mainly fall in the floodplain i.e., they are limited to the area of meandering. To quantify these variations, some specific morphometric parameters such as length (L), mean width (W) and sinuosity index (SI) of the channel were measured. The main morphological changes observed consist of a phase of severe narrowing of the channel, which occurred between the 1929 and the 1954, and a reduction in length that occurred between the 1984 and the 2020. The data obtained are in line with those reported in the literature by other authors who have identified precise temporal phases in which these variations occurred and the possible causes, mainly anthropogenic, that led to them. In addition, the analysis of the existing bibliography together with the study of satellite imagery revealed important variations also in the different land use in the same study area that are probably compatible with the geometric variations of the channel. The changes in land use found between the 1984 and the 2020 can certainly be attributed to the significant increase in urbanized areas and water bodies at the expense of agricultural areas.
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来源期刊
Rendiconti Online Societa Geologica Italiana
Rendiconti Online Societa Geologica Italiana GEOSCIENCES, MULTIDISCIPLINARY-
CiteScore
0.80
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0.00%
发文量
19
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