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Updated: Jul 21, 2025

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Seawater Sampling and Collection
Published on: June 17, 2009
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地中海沿海地区的盐度空间模式:历史水利基础设施的遗产
L Marien1, A Crabit1, B Dewandel2
1G-EAU, University of Montpellier, INRAE, Institut Agro, CIRAD, IRD, AgroParisTech, Montpellier, France.
The Science of the total environment
|July 26, 2023
概括
历史的土地和水资源管理对地中海沿海土壤盐度产生了重大影响. 古代的水基础设施,如淡水和排水道,继续影响当前的盐度水平,威胁到未来的水资源可用性.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 水文学的水文学
背景情况:
- 地中海沿海地区面临着广泛的开发和资源管理挑战,土壤和水的盐度往往加剧了这一挑战.
- 了解土地规划和水资源管理的历史背景对于解决当前的度问题至关重要.
研究的目的:
- 探索历史土地规划,水资源管理和法国沿海平原当今土壤和水的盐度之间的关系.
- 根据过去的基础设施的长期影响,了解未来的盐度预测.
主要方法:
- 收集了1185个土壤样本,并从1:5稀释中分析了电导率 (ECsp).
- 在地表水和浅地下水中测量了微量元素度和氧 (18O/16O) 同位素比.
- 评估了土壤类型,深度和接近古代水基础设施对盐度模式的影响.
主要成果:
- 土壤盐度变化很大 (0.54113.1 mS cm-1) 与不同的空间模式,更高的深度和古代水基础设施的影响.
- 地化学特征表明淡水和海水混合在一起,有过度盐分的海水和盐度分层的证据.
- 在历史淡水道附近发现的盐度较低的土壤,而在排水道附近发现的盐度较高的土壤.
结论:
- 地下水被确定为土壤盐度的主要来源,直接与历史水资源管理的长期影响有关.
- 过去的土地使用,包括池和盐厂的存在,已经塑造了当前的盐度模式,今天可以看到.
- 虽然过去的淡水流入有助于海水淡化,但目前减少的水量威胁着这一趋势,给沿海生态系统和农业带来风险.
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