A review of sediment quantity issues: Examples from the River Ebro and adjacent basins (Northeastern Spain)
A review of sediment quantity issues: Examples from the River Ebro and adjacent basins (Northeastern Spain)
复制标题
沉积物数量问题回顾：埃布罗河及邻近盆地（西班牙东北部）的例子
DOI：
10.1002/ieam.126
复制
发表时间：
2011
影响因子：
3.1
通讯作者：
D. Vericat
中科院分区：
文献类型：
--
作者：
R. Batalla;D. Vericat
沉积物通过排水网络自然流动，从源头地区流向沉积区。河流和海岸线的沉积不平衡与河流系统内部的不平衡有关，主要是由水坝、采矿和土地利用的变化造成的。这种现象也是河流和溪流生态扰动的原因。广泛需要建立全面的管理战略（软措施），这些战略将超越通常为解决特定问题而采取的特定现场工程实践（技术措施）。还需要长期计划来监测河流流域的泥沙输移，以评估泥沙输移的幅度和变化以及潜在的亏损。本文列举了埃布罗及邻近流域中具有重要沉积物不平衡的河流的实例。这些盆地，像大多数在伊比利亚半岛，经验沉积物不连续的集水区，河流，海岸系统。水库淤积是主要的定量问题。土地使用的变化，特别是大坝下游的砾石开采，加剧了这一进程。我们还介绍和讨论了水和沉积物管理的最新进展，以改善河流的形态沉积动力学。Integr Environ Assess Manag 2011;7：256-268.© 2010 SETAC
Sediment flows naturally through the drainage network, from source areas to deposition zones. Sedimentary disequilibrium in rivers and coastlines is related to the imbalance within the fluvial system caused mostly by dams, instream mining, and changes in land use. This phenomenon is also responsible for ecological perturbations in rivers and streams. A broad need exists to establish comprehensive management strategies (soft measures) that would go beyond site‐specific engineering practices (technical measures) typically taken to solve particular problems. Long‐term programs are also required to monitor sediment transport in river basins, in order to assess the magnitude and variability of sediment transfer and potential deficits. This paper shows examples of rivers with important sediment disequilibrium in the Ebro and adjacent basins. These basins, like most in the Iberian Peninsula, experience sediment discontinuity in the catchment–river–coast system. Reservoir siltation is the main quantitative issue. Land use change and especially gravel mining downstream from dams accentuate the process. We also present and discuss recent developments on water and sediment management undertaken to improve the morphosedimentary dynamics of rivers. Integr Environ Assess Manag 2011;7:256–268. © 2010 SETAC