Impacts of land-use change on carbon dynamics in China's coastal wetlands
The impact of land-use and land-cover change (LULCC) on ecosystem carbon (C) dynamics has been previously documented at local and global scales, but uncertainty persists for coastal wetlands due to geographical variability and field data limitations. Field-based assessments of plant and soil C conte...
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| Veröffentlicht in: | The Science of the total environment 2023-09, Vol.890, p.164206-164206, Article 164206 |
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| creator | Tan, Li-Shan Ge, Zhen-Ming Li, Shi-Hua Zhou, Ke Lai, Derrick Y.F. Temmerman, Stijn Dai, Zhi-Jun |
| description | The impact of land-use and land-cover change (LULCC) on ecosystem carbon (C) dynamics has been previously documented at local and global scales, but uncertainty persists for coastal wetlands due to geographical variability and field data limitations. Field-based assessments of plant and soil C contents and stocks of various LULCC types were conducted in nine regions along the coastline of China (21°–40°N). These regions cover natural coastal wetlands (NWs, including salt marshes and mangroves) and former wetlands converted to different LULCC types, including reclaimed wetlands (RWs), dry farmlands (DFs), paddy fields (PFs) and aquaculture ponds (APs). The results showed that LULCC generally decreased the C contents and stocks of the plant–soil system by 29.6 % ± 2.5 % and 40.4 % ± 9.2 %, respectively, while it slightly increased the soil inorganic C contents and stocks. Wetlands converted to APs and RWs lost greater ecosystem organic C stocks (EOC, sum of plants and top 30 cm of soil organic C stocks) than other LULCC types. The annual potential CO2 emissions estimated from EOC loss depended on the LULCC type, with an average emission of 7.92 ± 2.94 Mg CO2-eq ha−1 yr−1. The change rate of EOC in all LULCC types showed a significantly deceasing trend with increasing latitude (p |
| doi_str_mv | 10.1016/j.scitotenv.2023.164206 |
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[Display omitted]
•Land-use change in wetlands resulted in organic C loss, while increased inorganic C.•Potential CO2 emission caused by organic C loss was dependent on land use types.•Change rate of ecosystem organic C was greater in mangroves than in salt marshes.•Loss rates of C showed a significant increasing trend with decreasing latitude.•Environmental variables that may drive the response of ecosystem C were identified.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2023.164206</identifier><identifier>PMID: 37196957</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>aquaculture ; Carbon - analysis ; Carbon Dioxide ; China ; climate ; coasts ; Ecosystem ; ecosystems ; environment ; geographical variation ; Greenhouse effect ; land use and land cover maps ; Land-use change ; latitude ; Mangrove ; paddies ; phytomass ; Salt marsh ; Soil ; Soil carbon ; soil inorganic carbon ; soil organic carbon ; soil water content ; uncertainty ; Wetlands</subject><ispartof>The Science of the total environment, 2023-09, Vol.890, p.164206-164206, Article 164206</ispartof><rights>2023 Elsevier B.V.</rights><rights>Copyright © 2023 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-52defb98f7555e87ff1e5789f5982478e3edc441fc52f20e103934f3569579473</citedby><cites>FETCH-LOGICAL-c404t-52defb98f7555e87ff1e5789f5982478e3edc441fc52f20e103934f3569579473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0048969723028279$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37196957$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tan, Li-Shan</creatorcontrib><creatorcontrib>Ge, Zhen-Ming</creatorcontrib><creatorcontrib>Li, Shi-Hua</creatorcontrib><creatorcontrib>Zhou, Ke</creatorcontrib><creatorcontrib>Lai, Derrick Y.F.</creatorcontrib><creatorcontrib>Temmerman, Stijn</creatorcontrib><creatorcontrib>Dai, Zhi-Jun</creatorcontrib><title>Impacts of land-use change on carbon dynamics in China's coastal wetlands</title><title>The Science of the total environment</title><addtitle>Sci Total Environ</addtitle><description>The impact of land-use and land-cover change (LULCC) on ecosystem carbon (C) dynamics has been previously documented at local and global scales, but uncertainty persists for coastal wetlands due to geographical variability and field data limitations. Field-based assessments of plant and soil C contents and stocks of various LULCC types were conducted in nine regions along the coastline of China (21°–40°N). These regions cover natural coastal wetlands (NWs, including salt marshes and mangroves) and former wetlands converted to different LULCC types, including reclaimed wetlands (RWs), dry farmlands (DFs), paddy fields (PFs) and aquaculture ponds (APs). The results showed that LULCC generally decreased the C contents and stocks of the plant–soil system by 29.6 % ± 2.5 % and 40.4 % ± 9.2 %, respectively, while it slightly increased the soil inorganic C contents and stocks. Wetlands converted to APs and RWs lost greater ecosystem organic C stocks (EOC, sum of plants and top 30 cm of soil organic C stocks) than other LULCC types. The annual potential CO2 emissions estimated from EOC loss depended on the LULCC type, with an average emission of 7.92 ± 2.94 Mg CO2-eq ha−1 yr−1. The change rate of EOC in all LULCC types showed a significantly deceasing trend with increasing latitude (p < 0.05). The loss of EOC due to LULCC was larger in mangroves than in salt marshes. The results showed that the response of plant and soil C variables to LULCC was mainly related to differences in plant biomass, median grain size, soil water content and soil NH4+-N content. This study emphasized the importance of LULCC in triggering C loss in natural coastal wetlands, which strengthens the greenhouse effect. We suggest that the current land-based climate models and climate mitigation policies must account for specific land-use types and their associated land management practices to achieve more effective emission reduction.
[Display omitted]
•Land-use change in wetlands resulted in organic C loss, while increased inorganic C.•Potential CO2 emission caused by organic C loss was dependent on land use types.•Change rate of ecosystem organic C was greater in mangroves than in salt marshes.•Loss rates of C showed a significant increasing trend with decreasing latitude.•Environmental variables that may drive the response of ecosystem C were identified.</description><subject>aquaculture</subject><subject>Carbon - analysis</subject><subject>Carbon Dioxide</subject><subject>China</subject><subject>climate</subject><subject>coasts</subject><subject>Ecosystem</subject><subject>ecosystems</subject><subject>environment</subject><subject>geographical variation</subject><subject>Greenhouse effect</subject><subject>land use and land cover maps</subject><subject>Land-use change</subject><subject>latitude</subject><subject>Mangrove</subject><subject>paddies</subject><subject>phytomass</subject><subject>Salt marsh</subject><subject>Soil</subject><subject>Soil carbon</subject><subject>soil inorganic carbon</subject><subject>soil organic carbon</subject><subject>soil water content</subject><subject>uncertainty</subject><subject>Wetlands</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqNkE1PAjEQhhujEUT_gvaml8V-btsjIX6QkHjRc1O6Uylhd3G7YPj37gbkqnOZZPK8M5MHoTtKxpTQ_HE1Tj62dQvVbswI42OaC0byMzSkWpmMEpafoyEhQmcmN2qArlJaka6UppdowBXtxlIN0WxWbpxvE64DXruqyLYJsF-66hNwXWHvmkXXin3lyugTjhWeLmPl7hP2tUutW-NvaPtgukYXwa0T3Bz7CH08P71PX7P528tsOplnXhDRZpIVEBZGByWlBK1CoCCVNkEazYTSwKHwQtDgJQuMACXccBG47P81QvERejjs3TT11xZSa8uYPKy7J6DeJss0F0wpQ-Q_UCqZyLkRHaoOqG_qlBoIdtPE0jV7S4ntlduVPSm3vXJ7UN4lb49HtosSilPu13EHTA4AdFZ2EZp-EVQeitiAb21Rxz-P_ABRaZTx</recordid><startdate>20230910</startdate><enddate>20230910</enddate><creator>Tan, Li-Shan</creator><creator>Ge, Zhen-Ming</creator><creator>Li, Shi-Hua</creator><creator>Zhou, Ke</creator><creator>Lai, Derrick Y.F.</creator><creator>Temmerman, Stijn</creator><creator>Dai, Zhi-Jun</creator><general>Elsevier B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20230910</creationdate><title>Impacts of land-use change on carbon dynamics in China's coastal wetlands</title><author>Tan, Li-Shan ; Ge, Zhen-Ming ; Li, Shi-Hua ; Zhou, Ke ; Lai, Derrick Y.F. ; Temmerman, Stijn ; Dai, Zhi-Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-52defb98f7555e87ff1e5789f5982478e3edc441fc52f20e103934f3569579473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>aquaculture</topic><topic>Carbon - analysis</topic><topic>Carbon Dioxide</topic><topic>China</topic><topic>climate</topic><topic>coasts</topic><topic>Ecosystem</topic><topic>ecosystems</topic><topic>environment</topic><topic>geographical variation</topic><topic>Greenhouse effect</topic><topic>land use and land cover maps</topic><topic>Land-use change</topic><topic>latitude</topic><topic>Mangrove</topic><topic>paddies</topic><topic>phytomass</topic><topic>Salt marsh</topic><topic>Soil</topic><topic>Soil carbon</topic><topic>soil inorganic carbon</topic><topic>soil organic carbon</topic><topic>soil water content</topic><topic>uncertainty</topic><topic>Wetlands</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tan, Li-Shan</creatorcontrib><creatorcontrib>Ge, Zhen-Ming</creatorcontrib><creatorcontrib>Li, Shi-Hua</creatorcontrib><creatorcontrib>Zhou, Ke</creatorcontrib><creatorcontrib>Lai, Derrick Y.F.</creatorcontrib><creatorcontrib>Temmerman, Stijn</creatorcontrib><creatorcontrib>Dai, Zhi-Jun</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tan, Li-Shan</au><au>Ge, Zhen-Ming</au><au>Li, Shi-Hua</au><au>Zhou, Ke</au><au>Lai, Derrick Y.F.</au><au>Temmerman, Stijn</au><au>Dai, Zhi-Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impacts of land-use change on carbon dynamics in China's coastal wetlands</atitle><jtitle>The Science of the total environment</jtitle><addtitle>Sci Total Environ</addtitle><date>2023-09-10</date><risdate>2023</risdate><volume>890</volume><spage>164206</spage><epage>164206</epage><pages>164206-164206</pages><artnum>164206</artnum><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>The impact of land-use and land-cover change (LULCC) on ecosystem carbon (C) dynamics has been previously documented at local and global scales, but uncertainty persists for coastal wetlands due to geographical variability and field data limitations. Field-based assessments of plant and soil C contents and stocks of various LULCC types were conducted in nine regions along the coastline of China (21°–40°N). These regions cover natural coastal wetlands (NWs, including salt marshes and mangroves) and former wetlands converted to different LULCC types, including reclaimed wetlands (RWs), dry farmlands (DFs), paddy fields (PFs) and aquaculture ponds (APs). The results showed that LULCC generally decreased the C contents and stocks of the plant–soil system by 29.6 % ± 2.5 % and 40.4 % ± 9.2 %, respectively, while it slightly increased the soil inorganic C contents and stocks. Wetlands converted to APs and RWs lost greater ecosystem organic C stocks (EOC, sum of plants and top 30 cm of soil organic C stocks) than other LULCC types. The annual potential CO2 emissions estimated from EOC loss depended on the LULCC type, with an average emission of 7.92 ± 2.94 Mg CO2-eq ha−1 yr−1. The change rate of EOC in all LULCC types showed a significantly deceasing trend with increasing latitude (p < 0.05). The loss of EOC due to LULCC was larger in mangroves than in salt marshes. The results showed that the response of plant and soil C variables to LULCC was mainly related to differences in plant biomass, median grain size, soil water content and soil NH4+-N content. This study emphasized the importance of LULCC in triggering C loss in natural coastal wetlands, which strengthens the greenhouse effect. We suggest that the current land-based climate models and climate mitigation policies must account for specific land-use types and their associated land management practices to achieve more effective emission reduction.
[Display omitted]
•Land-use change in wetlands resulted in organic C loss, while increased inorganic C.•Potential CO2 emission caused by organic C loss was dependent on land use types.•Change rate of ecosystem organic C was greater in mangroves than in salt marshes.•Loss rates of C showed a significant increasing trend with decreasing latitude.•Environmental variables that may drive the response of ecosystem C were identified.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>37196957</pmid><doi>10.1016/j.scitotenv.2023.164206</doi><tpages>1</tpages></addata></record> |
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| subjects | aquaculture Carbon - analysis Carbon Dioxide China climate coasts Ecosystem ecosystems environment geographical variation Greenhouse effect land use and land cover maps Land-use change latitude Mangrove paddies phytomass Salt marsh Soil Soil carbon soil inorganic carbon soil organic carbon soil water content uncertainty Wetlands |
| title | Impacts of land-use change on carbon dynamics in China's coastal wetlands |
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