{"title":"中国北方不同垃圾投入量的人工湿地中的土壤碳、氮、磷含量和有机磷矿化度","authors":"Zhiying Tang, Jingxiao Chen, Yinghu Zhang","doi":"10.1007/s11368-024-03849-z","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>Constructed wetlands have profound influences on efficient wastewater purification and treatment. However, what extent and how different kinds of constructed wetland can effectively influence the distribution of nutrients content and mineralization? Specially, whether the response of the changes of soil nutrients content and mineralization to different amounts of litter input was consistent? It has not been resolved.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>In this study, five constructed wetland systems (i.e., the Circulating Water Treatment Pond 1 (CW), Recirculating Water Treatment Pond 2 (RCW), Reclaimed Water Treatment Pond (RW), Plant Oxidation Pond (POP), and Mixed Oxidation Pond (MOP)) in the Beijing Olympic Forest Park were studied. CW, RCW, and RW belong to the composite vertical-flow systems, while POP and MOP belong to the free surface systems. Field litter input (5 and 20 g, respectively) with five replicates applied to the constructed wetland systems were conducted. The contents of soil total carbon (TC), soil total nitrogen (TN), soil total phosphorus (TP), and phosphorus mineralization rates were quantified. Ordinary kriging interpolation was used to characterize the spatial distribution of soil TC, TN, TP and phosphorus mineralization rates.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The results showed that the contents of soil TC and TN in the composite vertical-flow systems (CW, RCW, and RW) were greater than those in the free surface systems (POP and MOP), while it was contrary for the content of soil TP. Soil organic phosphorus (accounting for 45.80 ± 8.12%) and inorganic phosphorus (accounting for 51.81 ± 7.46%) were the main components of soil TP. Phosphorus mineralization rates in the composite vertical-flow systems were greater than the free surface systems. The phosphorus mineralization rates were the smallest in MOP (-2.06 mg·kg<sup>−1</sup>·d<sup>−1</sup>) and the highest in RW (0.32 mg·kg<sup>−1</sup>·d<sup>−1</sup>). Litter input decreased the contents of soil TC and TN in the composite vertical-flow systems and MOP, while increased in POP. Soil TP content after the litter input increased in CW, RCW, and MOP, while decreased in RW and POP. The litter input was beneficial for improving the phosphorus mineralization rates. The effects of 5 g litter input on the changes of the contents of soil TC, TN, TP and phosphorus mineralization rates were stronger than that of 20 g litter input.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Our study has supplemented the inconclusive results of the influences of different constructed wetlands and amounts of litter input on soil nutrient content and mineralization. The findings of this study could provide data support for better constructed wetland management, which could help the managers understand the mechanisms of improving the efficiency of wastewater treatment in constructed wetlands.</p>","PeriodicalId":17139,"journal":{"name":"Journal of Soils and Sediments","volume":"39 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Soil C, N, and P contents and organic phosphorus mineralization in constructed wetlands with different litter input in northern China\",\"authors\":\"Zhiying Tang, Jingxiao Chen, Yinghu Zhang\",\"doi\":\"10.1007/s11368-024-03849-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Purpose</h3><p>Constructed wetlands have profound influences on efficient wastewater purification and treatment. However, what extent and how different kinds of constructed wetland can effectively influence the distribution of nutrients content and mineralization? Specially, whether the response of the changes of soil nutrients content and mineralization to different amounts of litter input was consistent? It has not been resolved.</p><h3 data-test=\\\"abstract-sub-heading\\\">Methods</h3><p>In this study, five constructed wetland systems (i.e., the Circulating Water Treatment Pond 1 (CW), Recirculating Water Treatment Pond 2 (RCW), Reclaimed Water Treatment Pond (RW), Plant Oxidation Pond (POP), and Mixed Oxidation Pond (MOP)) in the Beijing Olympic Forest Park were studied. CW, RCW, and RW belong to the composite vertical-flow systems, while POP and MOP belong to the free surface systems. Field litter input (5 and 20 g, respectively) with five replicates applied to the constructed wetland systems were conducted. The contents of soil total carbon (TC), soil total nitrogen (TN), soil total phosphorus (TP), and phosphorus mineralization rates were quantified. Ordinary kriging interpolation was used to characterize the spatial distribution of soil TC, TN, TP and phosphorus mineralization rates.</p><h3 data-test=\\\"abstract-sub-heading\\\">Results</h3><p>The results showed that the contents of soil TC and TN in the composite vertical-flow systems (CW, RCW, and RW) were greater than those in the free surface systems (POP and MOP), while it was contrary for the content of soil TP. Soil organic phosphorus (accounting for 45.80 ± 8.12%) and inorganic phosphorus (accounting for 51.81 ± 7.46%) were the main components of soil TP. Phosphorus mineralization rates in the composite vertical-flow systems were greater than the free surface systems. The phosphorus mineralization rates were the smallest in MOP (-2.06 mg·kg<sup>−1</sup>·d<sup>−1</sup>) and the highest in RW (0.32 mg·kg<sup>−1</sup>·d<sup>−1</sup>). Litter input decreased the contents of soil TC and TN in the composite vertical-flow systems and MOP, while increased in POP. Soil TP content after the litter input increased in CW, RCW, and MOP, while decreased in RW and POP. The litter input was beneficial for improving the phosphorus mineralization rates. The effects of 5 g litter input on the changes of the contents of soil TC, TN, TP and phosphorus mineralization rates were stronger than that of 20 g litter input.</p><h3 data-test=\\\"abstract-sub-heading\\\">Conclusion</h3><p>Our study has supplemented the inconclusive results of the influences of different constructed wetlands and amounts of litter input on soil nutrient content and mineralization. The findings of this study could provide data support for better constructed wetland management, which could help the managers understand the mechanisms of improving the efficiency of wastewater treatment in constructed wetlands.</p>\",\"PeriodicalId\":17139,\"journal\":{\"name\":\"Journal of Soils and Sediments\",\"volume\":\"39 1\",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Soils and Sediments\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1007/s11368-024-03849-z\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Soils and Sediments","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s11368-024-03849-z","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Soil C, N, and P contents and organic phosphorus mineralization in constructed wetlands with different litter input in northern China
Purpose
Constructed wetlands have profound influences on efficient wastewater purification and treatment. However, what extent and how different kinds of constructed wetland can effectively influence the distribution of nutrients content and mineralization? Specially, whether the response of the changes of soil nutrients content and mineralization to different amounts of litter input was consistent? It has not been resolved.
Methods
In this study, five constructed wetland systems (i.e., the Circulating Water Treatment Pond 1 (CW), Recirculating Water Treatment Pond 2 (RCW), Reclaimed Water Treatment Pond (RW), Plant Oxidation Pond (POP), and Mixed Oxidation Pond (MOP)) in the Beijing Olympic Forest Park were studied. CW, RCW, and RW belong to the composite vertical-flow systems, while POP and MOP belong to the free surface systems. Field litter input (5 and 20 g, respectively) with five replicates applied to the constructed wetland systems were conducted. The contents of soil total carbon (TC), soil total nitrogen (TN), soil total phosphorus (TP), and phosphorus mineralization rates were quantified. Ordinary kriging interpolation was used to characterize the spatial distribution of soil TC, TN, TP and phosphorus mineralization rates.
Results
The results showed that the contents of soil TC and TN in the composite vertical-flow systems (CW, RCW, and RW) were greater than those in the free surface systems (POP and MOP), while it was contrary for the content of soil TP. Soil organic phosphorus (accounting for 45.80 ± 8.12%) and inorganic phosphorus (accounting for 51.81 ± 7.46%) were the main components of soil TP. Phosphorus mineralization rates in the composite vertical-flow systems were greater than the free surface systems. The phosphorus mineralization rates were the smallest in MOP (-2.06 mg·kg−1·d−1) and the highest in RW (0.32 mg·kg−1·d−1). Litter input decreased the contents of soil TC and TN in the composite vertical-flow systems and MOP, while increased in POP. Soil TP content after the litter input increased in CW, RCW, and MOP, while decreased in RW and POP. The litter input was beneficial for improving the phosphorus mineralization rates. The effects of 5 g litter input on the changes of the contents of soil TC, TN, TP and phosphorus mineralization rates were stronger than that of 20 g litter input.
Conclusion
Our study has supplemented the inconclusive results of the influences of different constructed wetlands and amounts of litter input on soil nutrient content and mineralization. The findings of this study could provide data support for better constructed wetland management, which could help the managers understand the mechanisms of improving the efficiency of wastewater treatment in constructed wetlands.
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.
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