Đánh giá khả năng giảm sóng triều của độ dày rừng ngập mặn tại huyện Trần Đề, tỉnh Sóc Trăng

Abstract

The study was to access the tidal wave reduction of coastal mangrove forest at Tran De district, Soc Trang province, along the East Sea of the Vietnam Mekong Delta. The wave properties were measured by the water pressure principle logger version wave height meter (INFINITY-WH AWH-USB). Three treatments corresponding to three forest thicknesses along a profile from the sea toward the inland, included 0 m, 50 m and 100 m and repeated at three sites (Cong 1, Cong 3 and Mo O). The wave properties were measured at two times in a day at high tide and low tide periods. The data of mangrove structures were collected such as tidal flat elevation, tree diameter, stump diameter, tree densiy, tree height, root density, and root height. The results showed that the coastal mangrove forest at Tran De district could reduce the tidal wave during both the high and low tide periods. The denser the forest structure, the greater the ratio of wave reducing and the lower coefficient of wave reducing.