Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands

The extensive conversion of coastal wetlands into agricultural and aquaculture areas has significant repercussions on soil nutrient balance. However, how coastal conversion specifically influences the dynamics and stoichiometry of topsoil carbon (C), nitrogen (N), and phosphorus (P) remains limited...

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Autores: Hu, Minjie, Wang, Jingtao, Sardans i Galobart, Jordi|||0000-0003-2478-0219, Wu, Hui, Ni, Ranxu, Guo, Pingping, Yan, Ruibing, Liao, Haoyu, Liu, Chunya, Peñuelas, Josep|||0000-0002-7215-0150, Tong, Chuan
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:294342
Acceso en línea:https://ddd.uab.cat/record/294342
https://dx.doi.org/urn:doi:10.1016/j.scitotenv.2024.174011
Access Level:acceso embargado
Palabra clave:Topsoil
C, N and P dynamics
Land use change
Coastal wetlands
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spelling Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlandsHu, MinjieWang, JingtaoSardans i Galobart, Jordi|||0000-0003-2478-0219Wu, HuiNi, RanxuGuo, PingpingYan, RuibingLiao, HaoyuLiu, ChunyaPeñuelas, Josep|||0000-0002-7215-0150Tong, ChuanTopsoilC, N and P dynamicsLand use changeCoastal wetlandsThe extensive conversion of coastal wetlands into agricultural and aquaculture areas has significant repercussions on soil nutrient balance. However, how coastal conversion specifically influences the dynamics and stoichiometry of topsoil carbon (C), nitrogen (N), and phosphorus (P) remains limited due to the considerable spatial variability and a lack of comprehensive field data. Here, we investigated the concentration and distribution of total C (TC), N (TN) and P (TP), along with their stoichiometric balance in four distinct coastal landscapes, including natural marshes and tidal flats, as well as converted agricultural croplands and ponds. The results revealed that converted croplands and ponds exhibited significantly higher concentrations of soil C, N and P, particularly in comparison to tidal flats. Furthermore, croplands and ponds have higher topsoil C stocks than tidal flats, but little difference or even lose stored C compared to marshes. Cropland soils showed considerably higher levels of available N (NH4+-N and NO3--N) and available P compared to those in natural marshes and tidal flats. The distribution of soil TC, TN, and TP demonstrated greater spatial heterogeneity in natural marshes and tidal flats, while the converted areas were more uniform and became hotspots for N and P accumulation. Coastal conversion altered soil C:N:P stoichiometry, with cropland soils exhibiting a lower N:P ratio (2.9 ± 1.1), indicating that long-term application of N and P fertilizers could decrease the N:P ratio, as P is more retained in the soil than N. Furthermore, it was observed that the dynamics of C, N and P, as well as their stoichiometry, are closely linked to soil physicochemical properties, especially soil organic matter and texture. These findings highlight that coastal conversion and associated management practices markedly affected soil C, N and P dynamics in a representative wetland area of the subtropical regions, leading to a reshaping of their stoichiometric balances, particularly in the topsoil layer. 220242024-01-0120262026-09-30Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articlehttps://ddd.uab.cat/record/294342https://dx.doi.org/urn:doi:10.1016/j.scitotenv.2024.174011reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2020-115770RB-I00Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2022-140808NB-I00European Commission https://doi.org/10.13039/501100000780 101056844embargoed accesshttp://purl.org/coar/access_right/c_f1cfAquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/embargoedAccessoai:ddd.uab.cat:2943422026-06-06T12:50:31Z
dc.title.none.fl_str_mv Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
title Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
spellingShingle Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
Hu, Minjie
Topsoil
C, N and P dynamics
Land use change
Coastal wetlands
title_short Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
title_full Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
title_fullStr Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
title_full_unstemmed Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
title_sort Coastal conversion alters topsoil carbon, nitrogen and phosphorus stocks and stoichiometric balances in subtropical coastal wetlands
dc.creator.none.fl_str_mv Hu, Minjie
Wang, Jingtao
Sardans i Galobart, Jordi|||0000-0003-2478-0219
Wu, Hui
Ni, Ranxu
Guo, Pingping
Yan, Ruibing
Liao, Haoyu
Liu, Chunya
Peñuelas, Josep|||0000-0002-7215-0150
Tong, Chuan
author Hu, Minjie
author_facet Hu, Minjie
Wang, Jingtao
Sardans i Galobart, Jordi|||0000-0003-2478-0219
Wu, Hui
Ni, Ranxu
Guo, Pingping
Yan, Ruibing
Liao, Haoyu
Liu, Chunya
Peñuelas, Josep|||0000-0002-7215-0150
Tong, Chuan
author_role author
author2 Wang, Jingtao
Sardans i Galobart, Jordi|||0000-0003-2478-0219
Wu, Hui
Ni, Ranxu
Guo, Pingping
Yan, Ruibing
Liao, Haoyu
Liu, Chunya
Peñuelas, Josep|||0000-0002-7215-0150
Tong, Chuan
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Topsoil
C, N and P dynamics
Land use change
Coastal wetlands
topic Topsoil
C, N and P dynamics
Land use change
Coastal wetlands
description The extensive conversion of coastal wetlands into agricultural and aquaculture areas has significant repercussions on soil nutrient balance. However, how coastal conversion specifically influences the dynamics and stoichiometry of topsoil carbon (C), nitrogen (N), and phosphorus (P) remains limited due to the considerable spatial variability and a lack of comprehensive field data. Here, we investigated the concentration and distribution of total C (TC), N (TN) and P (TP), along with their stoichiometric balance in four distinct coastal landscapes, including natural marshes and tidal flats, as well as converted agricultural croplands and ponds. The results revealed that converted croplands and ponds exhibited significantly higher concentrations of soil C, N and P, particularly in comparison to tidal flats. Furthermore, croplands and ponds have higher topsoil C stocks than tidal flats, but little difference or even lose stored C compared to marshes. Cropland soils showed considerably higher levels of available N (NH4+-N and NO3--N) and available P compared to those in natural marshes and tidal flats. The distribution of soil TC, TN, and TP demonstrated greater spatial heterogeneity in natural marshes and tidal flats, while the converted areas were more uniform and became hotspots for N and P accumulation. Coastal conversion altered soil C:N:P stoichiometry, with cropland soils exhibiting a lower N:P ratio (2.9 ± 1.1), indicating that long-term application of N and P fertilizers could decrease the N:P ratio, as P is more retained in the soil than N. Furthermore, it was observed that the dynamics of C, N and P, as well as their stoichiometry, are closely linked to soil physicochemical properties, especially soil organic matter and texture. These findings highlight that coastal conversion and associated management practices markedly affected soil C, N and P dynamics in a representative wetland area of the subtropical regions, leading to a reshaping of their stoichiometric balances, particularly in the topsoil layer.
publishDate 2024
dc.date.none.fl_str_mv
2
2024
2024-01-01
2026
2026-09-30
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/294342
https://dx.doi.org/urn:doi:10.1016/j.scitotenv.2024.174011
url https://ddd.uab.cat/record/294342
https://dx.doi.org/urn:doi:10.1016/j.scitotenv.2024.174011
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2020-115770RB-I00
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2022-140808NB-I00
European Commission https://doi.org/10.13039/501100000780 101056844
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv embargoedAccess
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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repository.mail.fl_str_mv
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