{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T19:38:28Z","timestamp":1784057908145,"version":"3.55.0"},"reference-count":47,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T00:00:00Z","timestamp":1765324800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Plant Sci."],"abstract":"<jats:p>\n                    As an important component of inland waters, shallow macrophyte-dominated lakes significantly influence regional carbon budgets. By using the static chamber-gas chromatography method and the sediment in-situ simulation, continuous fixed-point observations of CO2 exchange fluxes (F(CO2)) at water-air and water-sediment interfaces of shallow macrophyte-dominated Hurleg Lake were conducted. Combination with watershed meteorological conditions and lake water environmental parameters, their influencing factors were explored. The results revealed significant diel variations in F(CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    ) at both interfaces, characterized by peaks in the early morning and troughs in the evening or late night-a common feature of shallow macrophyte-dominated lakes. The composition of submerged macrophyte communities considerably affected the relative contribution of sediment-released CO\u2082 to the net atmospheric flux. The maximum contribution was observed in areas dominated by Potamogeton, followed by Myriophyllum zones, while the minimum occurred in Chara beds. Nocturnal F(CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    ) played a critical role in sustaining the carbon source function of the lake, accounting for 22.65%\u201342.90% of the total daily flux at the water-air interface and 5.57%-64.54% at the water-sediment interface across different vegetated and unvegetated zones. Neglecting nocturnal F(CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    ) would substantially increase uncertainties in estimating the lake\u2019s overall carbon budget. The F(CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    ) at the water-air interface was primarily regulated by water temperature, pH, dissolved oxygen, and atmospheric pressure, whereas F(CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    ) at the sediment-water was mainly driven by porewater CO\n                    <jats:sub>\u2082<\/jats:sub>\n                    concentration, sediment porosity, and water temperature.\n                  <\/jats:p>","DOI":"10.3389\/fpls.2025.1721578","type":"journal-article","created":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T06:35:28Z","timestamp":1765348528000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Diurnal variations in CO2 exchange fluxes and their influencing factors in a shallow macrophyte-dominated lake in the northeastern Qinghai-Tibetan Plateau: a case study of Hurleg Lake"],"prefix":"10.3389","volume":"16","author":[{"given":"Junxiang","family":"Xie","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanxiang","family":"Jin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Jin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zi\u2019ang","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tongrui","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingyun","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2025,12,10]]},"reference":[{"key":"B1","volume-title":"Effects of dominant aquatic plants on the sources and mineralization of organic carb-on in dongping lake water body","author":"Cao","year":"2022"},{"key":"B2","doi-asserted-by":"publisher","first-page":"2478","DOI":"10.13198\/j.issn.1001-6929.2024.07.02","article-title":"Characterization and influencing factors of dissolved concentrations and emission fluxes of greenhouse gases in winter in a shallow lake","volume":"37","author":"Chen","year":"2024","journal-title":"Res. 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