Interaction of contaminated sediment from a salt marsh with estuarine water: evaluation by leaching and ecotoxicity assays and salts from leachate evaporation

Peres, Sara; Magalhães, M. Clara F.; Abreu, Maria Manuela; Leitão, Sara; Santos, A.P. Marreilha dos; Cerejeira, Maria José

doi:10.1007/s11368-016-1355-z

Cited by 2 publications

(1 citation statement)

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“…The latter affects 480,000 ha of fertile soils and can result from natural processes as intertidal areas or marine sediment deposition (Estrela et al, 1997; Gonçalves et al, 2015; Shao et al, 2019) or can be human induced as overexploitation of freshwater aquifers or irrigation with low‐quality water. The estuarine marshes are considered one of the most productive ecosystems due to numerous ecosystem services (e.g., coastal protection against to erosion, carbon sequestration, habitats, among others) that they offer (Barbier et al, 2011; Li et al, 2014; Peres et al, 2016). However, these ecosystems are strongly threatened by human exploitation leading to habitat degradation, pollution, and commonly used as wastes deposit of several human activities (e.g., industry; Rajasree & Deo, 2018; Santos, Abreu, Peres, et al, 2017; Serafim et al, 2013) and sea‐level rise (Duarte et al, 2008; Hussain et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Germination and sustainable cultivation of succulent halophytes using resources from a degraded estuarine area through soil technologies approaches and saline irrigation water

et al. 2023

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The degradation of estuarine areas has been a growing concern in recent years, as these ecosystems offer several services. The Arthrocnemum and Suaeda genera produce useful compounds with various applications, which have led to their overexploitation in their native habitats. The main goal of this study is to use green technologies for sustainable cultivation of two species bioindicators of Mediterranean saltmarshes, Arthrocnemum macrostachyum and Suaeda vera, as an alternative to their overutilization. A tailored soil (TAIL) was constructed with a Saline Fluvisol (FLU), from a marginal estuarine area, and organic/inorganic residues were used as amendments, for plant cultivation. Seeds collected in natural populations were pretreated with two dormancy‐breaking treatments (H2SO4, H2O2) and germinated in FLU or TAIL. A microcosm assay using FLU or TAIL irrigated with estuarine water (VF) or three aqueous saline solutions (0, 200, or 400 mmol/L NaCl) was established. The species obtained a low percentage of seeds' germination being the highest values under substrate control (water‐soaked filter paper). The A. macrostachyum reached the highest germination percentage when seeds were pretreated with H2SO4 (20%) while the germination of S. vera was favored by the pretreatment with H2O2 (49%). Both species had the highest growth in TAIL irrigated with 0 or VF, presenting the largest stems (13–32 cm), the largest primary branches (3.5–7.2 cm), and the highest production of aerial part biomass (28–36 g). This study contributes to the sustainable cultivation of these valuable halophytes and could play an important role in the sustainable management of marginal estuarine land.

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