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Evaluation of streams and weather contribution on Dongting Lake water budget: a key driving tool for wetland management and protection | OMICS International| Abstract
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
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  • Research Article   
  • JESCC,
  • DOI: 10.4172/2157-7617.1000563

Evaluation of streams and weather contribution on Dongting Lake water budget: a key driving tool for wetland management and protection

Telesphore Habiyakare1,4, Nianqing Zhou2*, Chu-Han Feng1, Vincent Nzabarinda3,5, Fabrice Ndayisenga1, Richard Mind'je3,5 and Auguste Cesar Itangishaka3,6
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing,100049, China
2Department of Hydraulics, Tongji University, Shanghai, 200092, China
3University of Chinese Academy of Sciences, Beijing, 100049, China
4College of Science and Technology, University of Rwanda, Kigali, 1514, Rwanda
5State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
6Key Laboratory of Agricultural Water Resources, Hebei Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang,050021, China
*Corresponding Author : Nianqing Zhou, Department of Hydraulics, Tongji University, Shanghai 200092, China

Received Date: May 05, 2021 / Accepted Date: Jun 05, 2021 / Published Date: Jun 30, 2021

Abstract

With the considerable fluctuation of China's second freshwater lake, Dongting Lake has changed its water budget. Over the last few years, many floods and water level depletion occurred; thus, the research on Dongting Lake flood prevention and control, and understanding the hydrological processes has great importance in the middle Yangtze River. In this study, MIKE FLOOD Modeling coupling one-dimensional and two-dimensional Mike hydrodynamic (1D-2D MHD) is used for simulating hydrodynamic behavior of Dontgting Lake controlled by Yangtze River and its basin. The model was employed to simulate the lake storage capacity and water budget in dry and wet seasons over the period 2011-2014. A large amount of inflow was observed in 2012, whereas in 2011 was less compare to all four years. The findings revealed that runoff from rivers(Xiang, Zi, Yuan, and Li) is dominating the lake water variation. During the dry season, the flow characteristics in the East Lake and South Lake have an obvious counter-clockwise circulation because of the influence of wind and terrain conditions. Besides, lake surface temperature is mainly affected by the air above the lake. This study results provide a comprehensive tool for lake water fluctuation and wetland management.

Keywords: Modeling; Dongting Lake Basin; Storage capacity; Numerical simulation; Water budget; Wetland management

Citation: Habiyakare T, Zhou N, Feng C, Nzabarinda V, Ndayisenga F, et al. (2021) Evaluation of streams and weather contribution on Dongting Lake water budget: a key driving tool for wetland management and protection. J Earth Sci Clim Change 12: 563. Doi: 10.4172/2157-7617.1000563

Copyright: © 2021 Habiyakare T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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