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Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China

Xiao Lin, Yanli Yang, Ping Yang Orcid Logo, Yan Hong, Linhai Zhang, Chuan Tong, Derrick Y.F. Lai Orcid Logo, Yongxin Lin, Lishan Tan Orcid Logo, Yalan Tian, Kam Tang Orcid Logo

CATENA, Volume: 232, Start page: 107457

Swansea University Author: Kam Tang Orcid Logo

  • Accepted Manuscript under embargo until: 11th August 2024

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DOI (Published version): 10.1016/j.catena.2023.107457

Abstract

Soil organic nitrogen (SON) turnover regulates soil nitrogen (N) storage and availability. The coastal mudflats (MFs) in China have undergone drastic transformation due to invasive Spartina alterniflora (SAs) and subsequent reclamation of Spartina marshes to create aquaculture ponds (APs), but the i...

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Published in: CATENA
ISSN: 0341-8162 1872-6887
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64060
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The coastal mudflats (MFs) in China have undergone drastic transformation due to invasive Spartina alterniflora (SAs) and subsequent reclamation of Spartina marshes to create aquaculture ponds (APs), but the impact on the amounts and compositions of soil nitrogen remains unclear. This study measured the topsoil total nitrogen (STN) and organic nitrogen (SON) compositions in 21 coastal wetlands in southeastern China. Results show that conversion of MFs to SAs increased STN by 38.5%, whereas subsequent conversion to APs decreased it by 16.4%, and the effect was consistent across the broad geographic and climate gradients. Most of the change occurred in the non-acid-hydrolysable fraction of SON, which accounted for 32–42% of STN. Within the acid-hydrolysable fraction, amino acid N, ammonia N and amino sugar N together accounted for about 57%, with the remaining 43% unidentified chemically. 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spelling v2 64060 2023-08-09 Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2023-08-09 SBI Soil organic nitrogen (SON) turnover regulates soil nitrogen (N) storage and availability. The coastal mudflats (MFs) in China have undergone drastic transformation due to invasive Spartina alterniflora (SAs) and subsequent reclamation of Spartina marshes to create aquaculture ponds (APs), but the impact on the amounts and compositions of soil nitrogen remains unclear. This study measured the topsoil total nitrogen (STN) and organic nitrogen (SON) compositions in 21 coastal wetlands in southeastern China. Results show that conversion of MFs to SAs increased STN by 38.5%, whereas subsequent conversion to APs decreased it by 16.4%, and the effect was consistent across the broad geographic and climate gradients. Most of the change occurred in the non-acid-hydrolysable fraction of SON, which accounted for 32–42% of STN. Within the acid-hydrolysable fraction, amino acid N, ammonia N and amino sugar N together accounted for about 57%, with the remaining 43% unidentified chemically. Our results suggest that invasion by S. alterniflora was the overwhelming driver to increase bioavailability of nitrogen and related biogeochemical processes in coastal soil, and the effects were partly reversed in subsequent reclamation of Spartina marshes to create aquaculture ponds. Journal Article CATENA 232 107457 Elsevier BV 0341-8162 1872-6887 Coastal wetland, Invasive species, Spartina alterniflora, Land use change, Acid hydrolysis 30 11 2023 2023-11-30 10.1016/j.catena.2023.107457 http://dx.doi.org/10.1016/j.catena.2023.107457 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University Not Required This research was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 41801070, and No. 41671088), the National Natural Science Foundation of Fujian Province (Grant No. 2020J01136), the Minjiang Scholar Programme, the Research Grants Council of Hong Kong (CUHK 14122521, 14302420) and CUHK Direct Grant (145489489) 2023-10-20T16:35:14.5215846 2023-08-09T08:58:12.9404332 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Xiao Lin 1 Yanli Yang 2 Ping Yang 0000-0002-5212-6065 3 Yan Hong 4 Linhai Zhang 5 Chuan Tong 6 Derrick Y.F. Lai 0000-0002-1225-9904 7 Yongxin Lin 8 Lishan Tan 0000-0002-9714-1728 9 Yalan Tian 10 Kam Tang 0000-0001-9427-9564 11 Under embargo Under embargo 2023-08-09T09:03:36.9459772 Output 3601842 application/pdf Accepted Manuscript true 2024-08-11T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
spellingShingle Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
Kam Tang
title_short Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
title_full Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
title_fullStr Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
title_full_unstemmed Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
title_sort Soil organic nitrogen content and composition in different wetland habitat types along the south-east coast of China
author_id_str_mv 69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author Kam Tang
author2 Xiao Lin
Yanli Yang
Ping Yang
Yan Hong
Linhai Zhang
Chuan Tong
Derrick Y.F. Lai
Yongxin Lin
Lishan Tan
Yalan Tian
Kam Tang
format Journal article
container_title CATENA
container_volume 232
container_start_page 107457
publishDate 2023
institution Swansea University
issn 0341-8162
1872-6887
doi_str_mv 10.1016/j.catena.2023.107457
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://dx.doi.org/10.1016/j.catena.2023.107457
document_store_str 0
active_str 0
description Soil organic nitrogen (SON) turnover regulates soil nitrogen (N) storage and availability. The coastal mudflats (MFs) in China have undergone drastic transformation due to invasive Spartina alterniflora (SAs) and subsequent reclamation of Spartina marshes to create aquaculture ponds (APs), but the impact on the amounts and compositions of soil nitrogen remains unclear. This study measured the topsoil total nitrogen (STN) and organic nitrogen (SON) compositions in 21 coastal wetlands in southeastern China. Results show that conversion of MFs to SAs increased STN by 38.5%, whereas subsequent conversion to APs decreased it by 16.4%, and the effect was consistent across the broad geographic and climate gradients. Most of the change occurred in the non-acid-hydrolysable fraction of SON, which accounted for 32–42% of STN. Within the acid-hydrolysable fraction, amino acid N, ammonia N and amino sugar N together accounted for about 57%, with the remaining 43% unidentified chemically. Our results suggest that invasion by S. alterniflora was the overwhelming driver to increase bioavailability of nitrogen and related biogeochemical processes in coastal soil, and the effects were partly reversed in subsequent reclamation of Spartina marshes to create aquaculture ponds.
published_date 2023-11-30T16:35:16Z
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score 11.01306

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