Subsidence due to peat oxidation and impact on drainage infrastructures in a farmland catchment south of the Venice Lagoon
Subsidence due to peat oxidation and impact on drainage infrastructures in a farmland catchment south of the Venice Lagoon
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泥炭氧化造成的沉降及其对威尼斯泻湖以南农田集水区排水基础设施的影响
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
G. Stori
中科院分区：
文献类型：
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作者：
G. Gambolati;M. Putti;P. Teatini;G. Stori
在过去的世纪，威尼斯泻湖南部的大型农业区，由于泥炭有机土壤的氧化，经历了显着的地面沉降。这使该地区面临洪水危险，特别是在严重的暴风雨期间，并导致旨在运行排水系统的基础设施（沟渠、堤坝、泵站）的边际管理成本增加。直接测量和渠道网络的间接证据表明，在过去的70年里，土地沉降在1.5米到2米之间。本文概述了这个问题，并提供了有关其最近演变的重要信息。
Large agricultural areas reclaimed in the past century, south of the Venice Lagoon, have experienced significant land subsidence due to oxidation of peat organic soils. This has exposed the region to flood hazard particularly during severe storms and has contributed to increase the marginal management cost of the infrastructures (ditches, levees, pumping stations) designed to operate the drainage system. Direct measurements and indirect evidence from the channel network suggest a land settlement between 1.5 and 2 m over the past 70 years. This paper provides an overview of the problem with important information on its most recent evolution.