2 results match your criteria: "Institute of Pastoral Hydraulic Research[Affiliation]"
A plateau freshwater shallow lake as a significant CO sink during the ice-covered period: A case study of Lake Wuliangsuhai, China.
Sci Total Environ
December 2024
Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, Lammi Biological Station, University of Helsinki, Lammi FI-16900, Finland; Masinotek Oy, Ensimmäinen Savu 2, Vantaa FI-01510, Finland.
Lakes are essential for estimating the global CO budget. However, approximately 50 % of lakes undergo periodic freezing, and there is limited research on the factors influencing the CO cycle and ice formation in freshwater lakes located in middle- and high-latitude plateaus during ice-covered periods. Using high-frequency meteorological-flux data collected over six consecutive months during the 2018-2019 freezing period of Lake Wuliangsuhai, this study explored the diurnal variation, daily accumulation, and monthly accumulation of the CO cycle and its influencing mechanisms at a half-hour scale.
View Article and Find Full Text PDFHypoxia cycle in shallow lakes during winter (ice-covered to melting period): Stable and decay, hypoxia, and recovery phases.
Sci Total Environ
December 2024
Institute of Pastoral Hydraulic Research, Ministry of Water Resource, Hohhot 010020, China.
Article Synopsis
- - This study examines how low oxygen levels (hypoxia) occur in shallow lakes during winter, focusing on how various environmental factors (like temperature and water chemistry) influence dissolved oxygen (DO) beneath the ice.
- - Researchers identified three phases of hypoxia using data from high-frequency monitoring: a stable and decay phase, a hypoxic phase, and a recovery phase, with significant changes in environmental variables noted during each phase.
- - The study shows that the decrease in DO is largely driven by factors like electrical conductivity and phytoplankton biomass, while reoxygenation after ice melting is quick but limited by rising temperatures, enhancing understanding of cold, shallow lake ecosystems.