Organic carbon burial in the aral sea of central asia
Feng S. Ma L. Abuduwaili J. Liu W. Saparov G. Issanova G.
1 August 2021MDPI AG
Applied Sciences (Switzerland)
2021#11Issue 15
The burial of organic carbon in lake sediments plays an important role in the terrestrial carbon cycle. Clarifying the current status of carbon burial in the lakes of Central Asia is of great significance for the application of carbon balance assessments. With the analysis of the total organic carbon and nitrogen and the carbon isotope and organic carbon burial rate in the core sediment of the North Aral Sea, the status and influencing factors of organic carbon burial over the past 70 years can be revealed. The results showed that the main source of organic carbon was predominantly from lacustrine aquatic plants. However, the contribution of terrigenous organic carbon increased from the 1950s to the 1960s. The burial rate of organic carbon in North Aral Sea sediments was consistent with the overall change in the regional temperature. The burial rate of organic carbon showed an upward trend as a whole with an average of 28.78 g·m−2·a−1. Since 2010, the burial rate of organic carbon has stood at the highest level in nearly 70 years, with an average of 55.66 g·m−2·a−1. The protection of a lake by human beings can not only significantly improve the lake’s aquatic ecosystem but also help to increase the burial rate of the lake’s organic carbon.
Aral Sea , Climate change , Human activities , Lake sediments , Organic carbon burial , Stable carbon isotope
Text of the article Перейти на текст статьи
State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi, 830011, China
University of Chinese Academy of Sciences, Beijing, 100049, China
Kazakh Research Institute of Soil Science and Agrochemistry Named after U. U. Uspanov, Almaty, 050060, Kazakhstan
Faculty of Geography and Environmental Sciences, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
State Key Laboratory of Desert and Oasis Ecology
Research Center for Ecology and Environment of Central Asia
University of Chinese Academy of Sciences
Kazakh Research Institute of Soil Science and Agrochemistry Named after U. U. Uspanov
Faculty of Geography and Environmental Sciences
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026