{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T11:36:02Z","timestamp":1785411362364,"version":"3.56.0"},"reference-count":79,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2026,5,31]],"date-time":"2026-05-31T00:00:00Z","timestamp":1780185600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Qinghai Science and Technology Department","award":["No. 2025-ZJ-946M"],"award-info":[{"award-number":["No. 2025-ZJ-946M"]}]},{"award":["No. 2025-ZJ-946M"],"award-info":[{"award-number":["No. 2025-ZJ-946M"]}],"id":[{"id":"https:\/\/ror.org\/03vz7b375","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Background: This study aims to measure Greenhouse Gas (GHG) emission fluxes at the soil\u2013air and water\u2013air interfaces in urban wetlands on the Qinghai\u2013Tibet Plateau and identify the primary controlling factors. The objective is to elucidate the key drivers of carbon and nitrogen processes at different interface levels in wetlands within high-altitude urban settings, thereby providing a scientific basis for accurately estimating their contribution to greenhouse gas emissions. Results: In the wetlands of Xining City, with the exception of soil pH, bulk density, and moisture content (which showed no significant change over time), all other soil physicochemical properties differed significantly among the three wetlands and among the sampling periods (p &lt; 0.05). Soil moisture content was less affected by variations across different wetlands and over time, and differences in soil physicochemical properties among different wetlands were small (p &gt; 0.05). Significant differences were observed in the spatiotemporal variations in the physicochemical properties of water bodies in Xining\u2019s wetlands (p &lt; 0.05), although water pH and total organic carbon (TOC) were less affected by the interaction between different wetlands and time periods. There were no significant differences in the bulk density and moisture content of wetland sediments in Xining over time (p &gt; 0.05), while all other physicochemical indicators of sediments showed significant differences (p &lt; 0.05). The physicochemical properties of sediments were influenced by both different wetland types and different time periods. GHG fluxes at the water\u2013air interface in Xining wetlands were greater than those at the soil\u2013air interface; overall, GHG emissions from both interfaces acted as \u201csources.\u201d Seasonal variations in wetland GHG emissions were pronounced, with emission peaks occurring from June to August. The study found that the primary soil factor influencing GHG emissions at the soil\u2013air interface was total phosphorus (TP), while the primary sediment factors affecting emissions at the water\u2013air interface were TP and nitrate nitrogen (NO3\u2212-N), and the primary water factor was TOC. The interannual cumulative emissions from both interfaces in the wetland totaled 705.88 g\u00b7m\u22122. GHG emissions from the soil\u2013air and water\u2013air interfaces contributed 47.88% and 52.12%, respectively, to the global warming potential (GWP) of the wetland, while methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O) contributed 32.55%, 62.33%, and 5.12%, respectively, to the GWP. Conclusions: Investigating the GHG emission patterns in Xining\u2019s wetlands and identifying the primary factors influencing these emissions provides a scientific basis for the protection and restoration of these wetlands. This is of great significance for safeguarding the ecological security of Xining\u2019s wetlands as well as the overall ecological security of high-altitude wetlands.<\/jats:p>","DOI":"10.3390\/biology15110871","type":"journal-article","created":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T01:08:02Z","timestamp":1780535282000},"page":"871","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Greenhouse Gas Emission Fluxes in Urban Wetlands of Qinghai\u2013Tibet Plateau"],"prefix":"10.3390","volume":"15","author":[{"given":"Jianhua","family":"Si","sequence":"first","affiliation":[{"name":"College of Forestry and Grassland, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiawen","family":"Kang","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shipeng","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiawei","family":"Tian","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qilian","family":"Xie","sequence":"additional","affiliation":[{"name":"College of Forestry and Grassland, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiwei","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Forestry and Grassland, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yue","family":"Qi","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qi","family":"An","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanhong","family":"Gong","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Biyu","family":"Qin","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7514-1586","authenticated-orcid":false,"given":"Sujin","family":"Lu","sequence":"additional","affiliation":[{"name":"College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yin, X., Jiang, C., Xu, S., Yu, X., Yin, X., Wang, J., Maihaiti, M., Wang, C., Zheng, X., and Zhuang, X. 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