José R Paranaíba, Quinten Struik, Melisa Rodriguez, Sebastian Sobek, Sarian Kosten
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Deep central and southeastern areas of the lake exhibited relatively high C deposition, even though deep areas with low C content were also found. Lake Berendonck had a mean ± standard deviation sediment accumulation rate of 0.7 ± 0.5 cm year<sup>- 1</sup>, with areal OC and IC accumulation rates ranging between 24 and 557 and 3-37 g m<sup>- 2</sup> year<sup>- 1</sup>, respectively. Lake Berendonck's mean sediment OC accumulation rate (155 g m<sup>- 2</sup> year<sup>- 1</sup>) was approximately four times higher than the mean OC accumulation rate of global lakes (37 g m<sup>- 2</sup> year<sup>- 1</sup>), while Lake Berendonck's mean IC accumulation rate (12 g m<sup>- 2</sup> year<sup>- 1</sup>) falls in the mid-range for global lakes and seas.</p><p><strong>Conclusions: </strong>Our findings indicate that C accumulation is highly variable in space and that spatially integrated data are needed to estimate C stocks and unravel within-lake C processes reliably. Furthermore, this study highlights that the OC accumulation in Lake Berendonck ranks among the highest rates observed in global lakes with similar surface areas (0.4-0.5 km<sup>2</sup>). This underscores the global importance of small urban water bodies in C cycling, particularly as key C storage systems.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11368-025-04029-3.</p>","PeriodicalId":17139,"journal":{"name":"Journal of Soils and Sediments","volume":"25 5","pages":"1713-1721"},"PeriodicalIF":3.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12065750/pdf/","citationCount":"0","resultStr":"{\"title\":\"Hydroacoustic surveys reveal high sediment carbon accumulation in an urban lake.\",\"authors\":\"José R Paranaíba, Quinten Struik, Melisa Rodriguez, Sebastian Sobek, Sarian Kosten\",\"doi\":\"10.1007/s11368-025-04029-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>Insight into the distribution and sedimentation patterns of organic and inorganic carbon (OC and IC) in urban lake sediments is essential for understanding their role in the carbon (C) cycling of inland waters and supporting effective ecosystem management.</p><p><strong>Methods: </strong>This study investigated the spatial variability of sediment OC and IC accumulation in a mesotrophic human-made urban lake (Lake Berendonck; 45 ha) by combining high-resolution hydroacoustic sub-bottom profiling surveys and sediment coring.</p><p><strong>Results: </strong>The results revealed strong spatial variations in sediment C accumulation rates. Deep central and southeastern areas of the lake exhibited relatively high C deposition, even though deep areas with low C content were also found. Lake Berendonck had a mean ± standard deviation sediment accumulation rate of 0.7 ± 0.5 cm year<sup>- 1</sup>, with areal OC and IC accumulation rates ranging between 24 and 557 and 3-37 g m<sup>- 2</sup> year<sup>- 1</sup>, respectively. Lake Berendonck's mean sediment OC accumulation rate (155 g m<sup>- 2</sup> year<sup>- 1</sup>) was approximately four times higher than the mean OC accumulation rate of global lakes (37 g m<sup>- 2</sup> year<sup>- 1</sup>), while Lake Berendonck's mean IC accumulation rate (12 g m<sup>- 2</sup> year<sup>- 1</sup>) falls in the mid-range for global lakes and seas.</p><p><strong>Conclusions: </strong>Our findings indicate that C accumulation is highly variable in space and that spatially integrated data are needed to estimate C stocks and unravel within-lake C processes reliably. 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引用次数: 0
摘要
目的:了解城市湖泊沉积物中有机碳和无机碳(OC和IC)的分布和沉积模式,对于理解它们在内陆水域碳循环中的作用和支持有效的生态系统管理至关重要。方法:研究了中营养型城市人工湖(贝伦多克湖;通过结合高分辨率水声海底剖面调查和沉积物取心。结果:沉积物C积累速率存在明显的空间差异。湖的中部和东南部深区显示出较高的碳沉积,尽管也发现了低碳含量的深区。Berendonck湖的平均±标准差泥沙积累速率为0.7±0.5 cm year- 1,面积OC和IC积累速率分别在24 ~ 557和3 ~ 37 g m- 2 year- 1之间。Berendonck湖的平均沉积物OC积累速率(155 g m- 2年- 1)约为全球湖泊平均OC积累速率(37 g m- 2年- 1)的4倍,而Berendonck湖的平均IC积累速率(12 g m- 2年- 1)在全球湖泊和海洋中处于中等水平。结论:碳积累在空间上是高度可变的,需要空间整合的数据来估计碳储量并可靠地揭示湖内碳过程。此外,本研究强调Berendonck湖的OC累积率在全球类似表面积(0.4-0.5 km2)的湖泊中是最高的。这强调了城市小水体在碳循环中的全球重要性,特别是作为关键的碳储存系统。补充资料:在线版本包含补充资料,下载地址:10.1007/s11368-025-04029-3。
Hydroacoustic surveys reveal high sediment carbon accumulation in an urban lake.
Purpose: Insight into the distribution and sedimentation patterns of organic and inorganic carbon (OC and IC) in urban lake sediments is essential for understanding their role in the carbon (C) cycling of inland waters and supporting effective ecosystem management.
Methods: This study investigated the spatial variability of sediment OC and IC accumulation in a mesotrophic human-made urban lake (Lake Berendonck; 45 ha) by combining high-resolution hydroacoustic sub-bottom profiling surveys and sediment coring.
Results: The results revealed strong spatial variations in sediment C accumulation rates. Deep central and southeastern areas of the lake exhibited relatively high C deposition, even though deep areas with low C content were also found. Lake Berendonck had a mean ± standard deviation sediment accumulation rate of 0.7 ± 0.5 cm year- 1, with areal OC and IC accumulation rates ranging between 24 and 557 and 3-37 g m- 2 year- 1, respectively. Lake Berendonck's mean sediment OC accumulation rate (155 g m- 2 year- 1) was approximately four times higher than the mean OC accumulation rate of global lakes (37 g m- 2 year- 1), while Lake Berendonck's mean IC accumulation rate (12 g m- 2 year- 1) falls in the mid-range for global lakes and seas.
Conclusions: Our findings indicate that C accumulation is highly variable in space and that spatially integrated data are needed to estimate C stocks and unravel within-lake C processes reliably. Furthermore, this study highlights that the OC accumulation in Lake Berendonck ranks among the highest rates observed in global lakes with similar surface areas (0.4-0.5 km2). This underscores the global importance of small urban water bodies in C cycling, particularly as key C storage systems.
Supplementary information: The online version contains supplementary material available at 10.1007/s11368-025-04029-3.
期刊介绍:
The Journal of Soils and Sediments (JSS) is devoted to soils and sediments; it deals with contaminated, intact and disturbed soils and sediments. JSS explores both the common aspects and the differences between these two environmental compartments. Inter-linkages at the catchment scale and with the Earth’s system (inter-compartment) are an important topic in JSS. The range of research coverage includes the effects of disturbances and contamination; research, strategies and technologies for prediction, prevention, and protection; identification and characterization; treatment, remediation and reuse; risk assessment and management; creation and implementation of quality standards; international regulation and legislation.