Analysis of wetland construction mode and impact of flood storing and detaining of Pajiang River Flood Storage and Detention Area in the Pearl River Basin
LIU Da, HUANG Bensheng, LIU Zhongfeng, TAN Chao, HONG Chanhong
1. Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510635; 2. Guangdong Key Laboratory of Hydrodynamic Research, Guangzhou 510635; 3. State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, Guangzhou 510635; 4. Guangdong Provincial Science and Technology Collaborative Innovation Center for Water Safety, Guangzhou 510635
Abstract：The Pajiang River Flood Storage and Detention Area(PRSDA) is the only national flood storage and detention area in the Pearl River Basin. It is important to change its single flood control function to a multifunctional wetland with flood regulation and storage, pollutant degradation, and natural tourism in the new historical period. In this paper, a novel wetland construction model summarized as "three cores and one belt" was proposed. This model used the three existing sub-watersheds and two new barrage gates, which can not only realize the construction of different types of wetlands according to local conditions, but also retain the maximum flood storage capacity. In addition, a two-dimensional water flow mathematical model was used to simulate the impact of wetland construction on the flood storage and detention function. The simulation results showed that this newly wetland construction model had little impact on flood storage, which guaranteed the performance of the flood detention function of PRSDA. The results can provide important references for similar research on flood storage and detention areas.
刘达, 黄本胜, 刘中峰, 谭超, 洪昌红. 珠江流域潖江蓄滞洪区湿地化建设模式及对蓄滞洪的影响分析[J]. 中国防汛抗旱, 2023, 33(11): 28-32.
LIU Da, HUANG Bensheng, LIU Zhongfeng, TAN Chao, HONG Chanhong. Analysis of wetland construction mode and impact of flood storing and detaining of Pajiang River Flood Storage and Detention Area in the Pearl River Basin. journal1, 2023, 33(11): 28-32.
2023, Vol. 33 
