Peiyang Qiao, Ying Dong, Xiaoxuan Gu, Lian Xu, Mei Li, Wandong Chen, Li Lin, Xiaopin Ni, Luzhen Chen
{"title":"气候变暖刺激红树林在其北部极限海平面上升时固碳:原位模拟","authors":"Peiyang Qiao, Ying Dong, Xiaoxuan Gu, Lian Xu, Mei Li, Wandong Chen, Li Lin, Xiaopin Ni, Luzhen Chen","doi":"10.1002/lno.12655","DOIUrl":null,"url":null,"abstract":"<p>Global warming and sea-level rise are directly influencing the growth, distribution, and greenhouse gas emissions of mangrove forests. However, mangrove forests growing at their latitudinal limits are relatively susceptible to warming; nevertheless, few studies have focused on GHG emissions of latitudinal limits mangrove forests as related to global climate change. To address this knowledge gap, a multiyear in situ control experiment was established in a restored plantation at the northern distribution limit of <i>Kandelia obovata</i>, the most cold-tolerant mangrove species in China, to simulate both warming and sea-level rise. We investigated the growth patterns and sediment greenhouse gas emissions of a <i>K. obovata</i> population and identified the primary factors contributing to these changes. The results showed that warming and moderate sea-level rise enhanced biomass by more than 18%, indicating that warming stimulated plant growth while excessive sea-level rise inhibited it. The sediment greenhouse gas emissions ranged from 45.5 to 484.6 mgCO<sub>2</sub> m<sup>−2</sup> h<sup>−1</sup>, 5.6 to 590.3 <i>μ</i>gCH<sub>4</sub> m<sup>−2</sup> h<sup>−1</sup>, and 11.4 to 385 <i>μ</i>gN<sub>2</sub>O m<sup>−2</sup> h<sup>−1</sup>, which increased with warming while decreased with sea-level rise, acting as the net source of greenhouse gas emission. Our study predicted that sea-level rise, while directly changing sediment properties, had combined effects with warming on these studied mangrove forests that were predicted to emit more greenhouse gases from sediments in the future. These findings indicated that <i>K. obovata</i> plantations within their latitudinal limits tend to accumulate more CO<sub>2</sub> for biomass carbon storage under warming conditions, while stimulating sediment greenhouse gas emissions, which will offset their climate mitigating effect in future climatic scenarios.</p>","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Warming stimulates mangrove carbon sequestration in rising sea level at their northern limit: An in situ simulation\",\"authors\":\"Peiyang Qiao, Ying Dong, Xiaoxuan Gu, Lian Xu, Mei Li, Wandong Chen, Li Lin, Xiaopin Ni, Luzhen Chen\",\"doi\":\"10.1002/lno.12655\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Global warming and sea-level rise are directly influencing the growth, distribution, and greenhouse gas emissions of mangrove forests. However, mangrove forests growing at their latitudinal limits are relatively susceptible to warming; nevertheless, few studies have focused on GHG emissions of latitudinal limits mangrove forests as related to global climate change. To address this knowledge gap, a multiyear in situ control experiment was established in a restored plantation at the northern distribution limit of <i>Kandelia obovata</i>, the most cold-tolerant mangrove species in China, to simulate both warming and sea-level rise. We investigated the growth patterns and sediment greenhouse gas emissions of a <i>K. obovata</i> population and identified the primary factors contributing to these changes. The results showed that warming and moderate sea-level rise enhanced biomass by more than 18%, indicating that warming stimulated plant growth while excessive sea-level rise inhibited it. The sediment greenhouse gas emissions ranged from 45.5 to 484.6 mgCO<sub>2</sub> m<sup>−2</sup> h<sup>−1</sup>, 5.6 to 590.3 <i>μ</i>gCH<sub>4</sub> m<sup>−2</sup> h<sup>−1</sup>, and 11.4 to 385 <i>μ</i>gN<sub>2</sub>O m<sup>−2</sup> h<sup>−1</sup>, which increased with warming while decreased with sea-level rise, acting as the net source of greenhouse gas emission. Our study predicted that sea-level rise, while directly changing sediment properties, had combined effects with warming on these studied mangrove forests that were predicted to emit more greenhouse gases from sediments in the future. These findings indicated that <i>K. obovata</i> plantations within their latitudinal limits tend to accumulate more CO<sub>2</sub> for biomass carbon storage under warming conditions, while stimulating sediment greenhouse gas emissions, which will offset their climate mitigating effect in future climatic scenarios.</p>\",\"PeriodicalId\":18143,\"journal\":{\"name\":\"Limnology and Oceanography\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Limnology and Oceanography\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/lno.12655\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"LIMNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Limnology and Oceanography","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/lno.12655","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"LIMNOLOGY","Score":null,"Total":0}
Warming stimulates mangrove carbon sequestration in rising sea level at their northern limit: An in situ simulation
Global warming and sea-level rise are directly influencing the growth, distribution, and greenhouse gas emissions of mangrove forests. However, mangrove forests growing at their latitudinal limits are relatively susceptible to warming; nevertheless, few studies have focused on GHG emissions of latitudinal limits mangrove forests as related to global climate change. To address this knowledge gap, a multiyear in situ control experiment was established in a restored plantation at the northern distribution limit of Kandelia obovata, the most cold-tolerant mangrove species in China, to simulate both warming and sea-level rise. We investigated the growth patterns and sediment greenhouse gas emissions of a K. obovata population and identified the primary factors contributing to these changes. The results showed that warming and moderate sea-level rise enhanced biomass by more than 18%, indicating that warming stimulated plant growth while excessive sea-level rise inhibited it. The sediment greenhouse gas emissions ranged from 45.5 to 484.6 mgCO2 m−2 h−1, 5.6 to 590.3 μgCH4 m−2 h−1, and 11.4 to 385 μgN2O m−2 h−1, which increased with warming while decreased with sea-level rise, acting as the net source of greenhouse gas emission. Our study predicted that sea-level rise, while directly changing sediment properties, had combined effects with warming on these studied mangrove forests that were predicted to emit more greenhouse gases from sediments in the future. These findings indicated that K. obovata plantations within their latitudinal limits tend to accumulate more CO2 for biomass carbon storage under warming conditions, while stimulating sediment greenhouse gas emissions, which will offset their climate mitigating effect in future climatic scenarios.
期刊介绍:
Limnology and Oceanography (L&O; print ISSN 0024-3590, online ISSN 1939-5590) publishes original articles, including scholarly reviews, about all aspects of limnology and oceanography. The journal''s unifying theme is the understanding of aquatic systems. Submissions are judged on the originality of their data, interpretations, and ideas, and on the degree to which they can be generalized beyond the particular aquatic system examined. Laboratory and modeling studies must demonstrate relevance to field environments; typically this means that they are bolstered by substantial "real-world" data. Few purely theoretical or purely empirical papers are accepted for review.