Nutrient enrichment mitigates estuarine wetland CO2 emissions by reducing fungal stability and temperature sensitivity
文献类型：期刊论文
| 作者 | Wu, Chunmei5,6; Wang, Lin5,6; Li, Jiajia5,6; Hou, Ning5,6; Li, Yuan4; Wang, Weiqi3,5,6; Sardans, Jordi1,2 |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2026-06-15 |
| 卷号 | 300页码:10 |
| 关键词 | Estuarine wetland Fungal community Nitrogen and phosphorus addition Temperature sensitivity Soil CO2 emission |
| ISSN号 | 0013-9351 |
| DOI | 10.1016/j.envres.2026.124405 |
| 通讯作者 | Wang, Weiqi(wangweiqi15@163.com) |
| 英文摘要 | Increasing global nitrogen (N) and phosphorus (P) deposition significantly impacts carbon cycling in estuarine wetlands, yet the underlying microbial mechanisms remain unclear. This study selected the Phragmites australis wetland in the Shanyutan of the Min River Estuary as the research site. Four treatments were set up: control (CK), nitrogen (N) addition, phosphorus (P) addition, and combined nitrogen and phosphorus (NP) addition. Through a one-year in-situ experiment, we investigated how N, P, and combined NP additions regulate soil CO2 emissions, temperature sensitivity (Q(10)), and fungal community dynamics. The results showed that both nitrogen and phosphorus addition significantly increased soil electrical conductivity (EC) and water content (SWC) (p < 0.05). The N, P, and NP treatments all significantly reduced soil CO2 emissions by 25.83%, 20.46%, and 16.86% compared with the CK treatment, respectively (p < 0.05). Moreover, the N and NP treatments significantly decreased soil Q(10) values (p < 0.05). N and P addition altered fungal community diversity and composition, accompanied by weakened network complexity, reduced modularity index, and decreased community stability. Correlation analysis indicated that CO2 emissions were significantly negatively correlated with EC and SWC, and significantly positively correlated with soil temperature (ST), bulk density (BD), and pH. Additionally, Dictyophora was significantly negatively correlated with CO2 emissions (p < 0.05). In summary, N and P addition weakened fungal community stability by changing soil physicochemical conditions, thereby slowing soil CO2 emissions. This study provides key scientific support for understanding the evolution of carbon cycling in estuarine wetlands under global N and P deposition, and provided results consistent with the microbial regulation theory of wetland carbon cycling. |
| WOS关键词 | SOIL RESPIRATION ; N FERTILIZATION ; NITROGEN ; RESPONSES ; PHOSPHORUS |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| WOS记录号 | WOS:001741272700001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China |
| 源URL | [http://ir.yic.ac.cn/handle/133337/42384]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Wang, Weiqi |
| 作者单位 | 1.CREAF, Cerdanyola Del Valles 08193, Catalonia, Spain 2.UAB, CSIC, Global Ecol Unit, CREAF,CSIC, Barcelona 08193, Catalonia, Spain 3.Natl Forestry & Grassland Adm, Fujian Minjiang Estuary Wetland Ecosyst Natl Obse, Fuzhou 350215, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 5.Fujian Normal Univ, Inst Geog, Fuzhou 350117, Peoples R China 6.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350117, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Chunmei,Wang, Lin,Li, Jiajia,et al. Nutrient enrichment mitigates estuarine wetland CO2 emissions by reducing fungal stability and temperature sensitivity[J]. ENVIRONMENTAL RESEARCH,2026,300:10. |
| APA | Wu, Chunmei.,Wang, Lin.,Li, Jiajia.,Hou, Ning.,Li, Yuan.,...&Sardans, Jordi.(2026).Nutrient enrichment mitigates estuarine wetland CO2 emissions by reducing fungal stability and temperature sensitivity.ENVIRONMENTAL RESEARCH,300,10. |
| MLA | Wu, Chunmei,et al."Nutrient enrichment mitigates estuarine wetland CO2 emissions by reducing fungal stability and temperature sensitivity".ENVIRONMENTAL RESEARCH 300(2026):10. |
入库方式： OAI收割
来源：烟台海岸带研究所
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