SIMULATION OF WATER ELEVATION IN MANGROVE-SHRIMP SYSTEM IN AN MINH DISTRICT, KIEN GIANG PROVINCE  

Tóm tắt

Mangrove-shrimp farming can bring economic and environmental benefits to livelihood and mangrove protection, which water control is a key of success. To aid assessing this farming, this study was conducted in a mangrove-shrimp in Minh Giong hamlet, Van Khanh Dong commune, An Minh district, Kien Giang province. Water elevation and depth were simulated using the Navier-Stokes equation (TELEMAC 3D).  Model assessment for water elevation resulted in NSE= 0.77 – 0.87; RSR= 0.11 – 0.18; PBIAS= -4.6% – 7.22%; R2= 0.81 – 0.99 and S = 0.7 – 0.95, which indicated a good model performance. Results show water level varied spatio-temporally in the range of -0.27 – 0.55 m (water depth of 0.73-1.55 m). The water level in pond increased due to opening water gates allowing water inflow and declined due to water loss. This farming achieved both ecological shrimp farming and mangrove protection in terms of water control.

Từ khóa: TELEMAC 3D, shrimp farming, water of depth, water elevation.

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