YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Phosphorus sorption capacity in soils from freshwater restored coastal wetlands increased with restoration age
Xu, Gang1,4; Ren, Yuxuan1; Yue, Mengyu1; Lv, Yingchun1; Chen, Xiaobing2; Hui, Haibin3
Source PublicationGEODERMA
ISSN0016-7061
2022-09-15
Volume422Pages:8
KeywordPhosphorus Freshwater restored wetland Phosphorus sorption capacity Eutrophication risk index Degree of P saturation
DOI10.1016/j.geoderma.2022.115926
Corresponding AuthorXu, Gang(gxu126@foxmail.com)
AbstractCoastal wetlands, located at the intersection of land and sea, are considered to be a phosphorus (P) sink, source, and reactor in the global P cycle. However, the variation in P sorption capacity with wetland age and the related sorption mechanisms are not well understood. In this study, we collected the surface soil samples (0-20 cm) from 10 coastal freshwater wetlands that had been restored for 0-44 years surrounding China's Bohai Rim. Through a series of batch experiments, we studied the factors controlling P sorption and release in these soils. The results showed that the maximum P sorption capacity (Qmax) in these wetlands was 294-2447 mg kg(-1), with an average of 1472 mg kg(-1). The Qmax generally increased with increasing wetland restoration age. The degree of P saturation (DPS) and the P eutrophication risk index (ERI) for coastal wetlands were 0.5-9.5% and 0.9-21.1%, respectively. The DPS and ERI values did not vary significantly with wetland age. These data suggest that freshwater restoration significantly increases P sorption capacity, while not greatly affecting the P release potential in the coastal wetlands surrounding Bohai Rim. These observations may be related to the soil desalination and organic matter and amorphous Fe and/or Al accumulation that occur during the freshwater restoration of degraded wetlands. Coastal wetlands (especially restored wetlands) were suggested as P storage hotspots among upland, wetland, and offshore along the coastal watersheds of Bohai. These findings indicate that the freshwater restoration significantly improved the soil properties in the degraded coastal wetlands, and therefore increased P sorption capacity in the restored wetlands.
Funding OrganizationNational Natural Science Foundation of China ; Key Deployment Project of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative
Indexed BySCI
Language英语
WOS KeywordRIVER DELTA ; SEDIMENTS ; PHOSPHATE ; SALINITY ; EUTROPHICATION ; RECLAMATION ; REMOVAL ; RELEASE ; CARBON ; PH
WOS Research AreaAgriculture
WOS IDWOS:000802548500002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/31160
Collection中科院海岸带环境过程与生态修复重点实验室
中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Corresponding AuthorXu, Gang
Affiliation1.Qufu Normal Univ, Sch Geog & Tourism, Rizhao 276826, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
3.Agrotech Serv Ctr Rizhao city, Rizhao 276826, Peoples R China
4.80 Yantai Rd, Rizhao, Peoples R China
Recommended Citation
GB/T 7714
Xu, Gang,Ren, Yuxuan,Yue, Mengyu,et al. Phosphorus sorption capacity in soils from freshwater restored coastal wetlands increased with restoration age[J]. GEODERMA,2022,422:8.
APA Xu, Gang,Ren, Yuxuan,Yue, Mengyu,Lv, Yingchun,Chen, Xiaobing,&Hui, Haibin.(2022).Phosphorus sorption capacity in soils from freshwater restored coastal wetlands increased with restoration age.GEODERMA,422,8.
MLA Xu, Gang,et al."Phosphorus sorption capacity in soils from freshwater restored coastal wetlands increased with restoration age".GEODERMA 422(2022):8.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Gang]'s Articles
[Ren, Yuxuan]'s Articles
[Yue, Mengyu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Gang]'s Articles
[Ren, Yuxuan]'s Articles
[Yue, Mengyu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Gang]'s Articles
[Ren, Yuxuan]'s Articles
[Yue, Mengyu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.