The water level of Zengwen Reservoir reached 230.04 meters, a new high for the same period in 8 years. It will enter October at full water level.

The Zengwen Reservoir entered October with a full water level of 230 meters, a new high for the same period in eight years. (Photo by reporter Wu Junfeng)

First published 10-01 00:08

Update time 10-01 07:45

The Mid-Autumn Festival has passed and the flood season is gradually coming to an end. The Zengwen Reservoir, the largest in the country, continues to supply agricultural irrigation. Under the full control of the Southern District Water Resources Branch of the Water Resources Department, it will enter October with a 100% water storage rate of over 230 meters. The water level is a new high for the same period in the past eight years.

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According to the operating specifications of Zengwen Reservoir, the normal full water level is 228 meters from early May to late August, 229 meters from early September to late September, and 229 meters from early October to late April of the following year. 230 meters; and since September 2018, the Zengwen Reservoir has completed the dam's impermeable core improvement project and passed a safety assessment, and the full water level has been adjusted from the original elevation of 227 meters to an elevation of 230 meters.

According to the South Water Management Bureau, as of 11 o'clock in the evening on September 30, the water level of Zengwen Reservoir was 230.04 meters. It will enter October at full water level, a new high for the same period since 2018. However, in 2023 and 2024, it also reached the full water level of 230 meters in October.

The South Water Management Bureau also mentioned that it is currently continuing to supply irrigation for the second phase of rice cultivation in the Jianan area. There has been no significant rainfall in the catchment area recently, and the upstream inflow has dropped significantly. In the future, water resources will be transferred to Wushantou Reservoir, and the water level of Zengwen Reservoir will gradually decrease.

As for the Zengwen Nanhua Unicom Pipeline after September 15, it will be sent from the Nanhua Reservoir to the north for storage in the Wushantou Reservoir. Considering that the current time sequence has gradually entered the dry season, and the rainfall and inflow in the catchment area have slowed down, priority will be given to operating the water by diversion and storage in the Nanhua Reservoir. From October 1, the Nanhua Water Management Bureau will suspend the water transfer operation from the Nanhua Reservoir of the Unicom Pipeline to the Wushantou Reservoir.

At present, the second phase of rice cropping in Zengwen and Wushantou Irrigation Areas is in the Honda stage (referring to the growth period from transplanting to Honda growth to mature harvest), and the irrigation method is "supply 9 and stop 5", but the irrigation schedule will be adjusted according to the actual growth situation of the rice; currently Zengwen The total effective water storage capacity of Wushantou and Wushantou Reservoirs still exceeds 540 million cubic meters. The water storage rate of Nanhua Reservoir, which supplies water for people's livelihood, is also higher than 95%. The water situation is stable. The Nanhua Water Management Bureau still calls on the public to continue to develop good habits of saving water and cherish precious water resources.