Natural and Anthropogenic Variations in the Large Shifting Dune in the Corrubedo Natural Park, NW Iberian Peninsula (1956–2017)
Natural and Anthropogenic Variations in the Large Shifting Dune in the Corrubedo Natural Park, NW Iberian Peninsula (1956–2017)
复制标题
伊比利亚半岛西北部科鲁贝多自然公园大型移动沙丘的自然和人为变化（1956-2017）
作者：
A. Pérez;Alejandro Gómez;X. L. Otero
这项工作分析了从1956年到现在的科鲁韦多自然公园中的大型流动沙丘的演变。分析使用了航空图像、正射摄影、地形测量和激光雷达数据。从四个不同方面分析了变化：每个时期的路径演变，1956年至2017年期间移动的沙丘前缘位置和植被覆盖度的变化;以及2001年至2015年沙丘系统海拔和体积的变化。为了分析这些方面，采用了地理空间和地质统计学技术，揭示了沙丘前缘经历了两个不同的阶段：一个是直到20世纪80年代，平均向海前进32米，另一个是在20世纪80年代至2017年之间，当前缘向大陆延伸时，平均前进约82米。在这一地区，由于移动的沙丘向北扩展，证实了水量的损失。很明显，这些变化与人类活动的影响密切相关，这是由于直到1990年代初的采砂活动，以及最近自然公园游客人数的增加。所获得的结果突出表明，需要进行详细的研究，以了解这一系统的演变，并防止今后进一步的损害。此外，根据这些分析，可以制定一项战略，改善科鲁韦多自然公园的沿海和环境管理。
This work analyzes the evolution of the large shifting dune included in the Corrubedo Natural Park from 1956 until the present day. The analysis was carried out using aerial images, orthophotographs, topographic surveys and LiDAR (Light Detection and Ranging) data. Variations were analyzed in terms of four different aspects: evolution of pathways in each period, changes in the position of the mobile dune front and the degree of vegetation cover, all between 1956 and 2017; and variations in elevation and volume of the dune system between 2001 and 2015. To analyze these aspects, geospatial and geostatistical techniques were employed, which revealed that the dune front had undergone two different phases: one until the 1980s, with a mean seaward advance of 32 m and another one between the 1980 s and 2017, when the front prograded to the continent, with an approximate mean advance of 82 m. Loss of volume, related to the expansion of the mobile dune towards the north, was confirmed in this sector. It is evident that these changes are closely linked to anthropic influence, due to sand extraction until the early 1990s and, more recently, due to an increase in the number of visitors to the Natural Park. The results obtained highlight the need to carry out detailed studies to understand the evolution of this system and to prevent further damage in the future. Moreover, based on these analyses, a strategy to improve coastal and environmental management in the Corrubedo Natural Park could be designed.
影响因子：
3.3
作者：
S. Brooks;T. Spencer;A. McIvor;I. Möller
通讯作者：
S. Brooks;T. Spencer;A. McIvor;I. Möller