Mitigating water pollution in a Portuguese river basin under climate change through agricultural sustainable practices

IF 2.5 3区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Mitigation and Adaptation Strategies for Global Change Pub Date : 2024-03-16 DOI:10.1007/s11027-024-10121-9

José Pedro Ramião, Cláudia Pascoal, Rute Pinto, Cláudia Carvalho-Santos

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Abstract

Sustainable agricultural practices have been extensively used to reduce water pollution; however, the effectiveness of these practices may be significantly affected by climate change. In this study, we assess the effectiveness of sustainable agricultural practices in reducing sediment and nutrient export to rivers under future climate conditions, using the Soil & Water Assessment Tool in a Portuguese river basin exposed to high levels of agricultural pollution. In our study, filter strips demonstrated a significant mitigation effect on sediment and nutrient increases under simulated climate change conditions, with maximum sediment export depletion reaching 65% and the highest nutrient export depletion observed at 35%. The implementation of multiple sustainable practices resulted in the highest depletions, with a notable 71% depletion in sediment export and a 35% depletion in nutrient export. Additionally, our research underscores the crucial role of filter strips and multiple sustainable agricultural practices in mitigating the projected rise in nutrient concentrations during summer, given the effect of climate change on river discharge. Further studies exploring sustainable agricultural practices across different climates and watersheds can improve our understanding of their effectiveness for adaptation to climate change.

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通过农业可持续做法减轻气候变化对葡萄牙河流流域的水污染

可持续农业实践已被广泛用于减少水污染；然而，这些实践的有效性可能会受到气候变化的严重影响。在这项研究中，我们在葡萄牙一个农业污染严重的河流流域，利用土壤与水评估工具，评估了可持续农业实践在未来气候条件下减少河流沉积物和营养物排放的效果。在我们的研究中，在模拟气候变化条件下，过滤带对沉积物和养分的增加有显著的缓解作用，沉积物输出的最大消耗量达到 65%，养分输出的最高消耗量为 35%。多种可持续做法的实施导致了最高的消耗，沉积物出口显著减少了 71%，养分出口减少了 35%。此外，我们的研究强调，考虑到气候变化对河流排放的影响，过滤带和多种可持续农业实践在缓解夏季营养物浓度预计上升方面发挥着至关重要的作用。进一步研究探索不同气候和流域的可持续农业实践，可以提高我们对其适应气候变化的有效性的认识。

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来源期刊

Mitigation and Adaptation Strategies for Global Change ENVIRONMENTAL SCIENCES-

CiteScore

6.60

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： The Earth''s biosphere is being transformed by various anthropogenic activities. Mitigation and Adaptation Strategies for Global Change addresses a wide range of environment, economic and energy topics and timely issues including global climate change, stratospheric ozone depletion, acid deposition, eutrophication of terrestrial and aquatic ecosystems, species extinction and loss of biological diversity, deforestation and forest degradation, desertification, soil resource degradation, land-use change, sea level rise, destruction of coastal zones, depletion of fresh water and marine fisheries, loss of wetlands and riparian zones and hazardous waste management. Response options to mitigate these threats or to adapt to changing environs are needed to ensure a sustainable biosphere for all forms of life. To that end, Mitigation and Adaptation Strategies for Global Change provides a forum to encourage the conceptualization, critical examination and debate regarding response options. The aim of this journal is to provide a forum to review, analyze and stimulate the development, testing and implementation of mitigation and adaptation strategies at regional, national and global scales. One of the primary goals of this journal is to contribute to real-time policy analysis and development as national and international policies and agreements are discussed and promulgated.