大米草是一种多年生禾本科的湿生植物,具有耐盐、耐淹,适应性广,根系发达,无性繁殖能力强的特点,是改造海滩的先锋植物。现将海滩种植大米草,对促淤保滩、迅速提高海滩土壤肥力,利用大米草滩栽培芦苇的试验调查结果分述如下: 一、大米草的促淤保滩效果 大米草在海滩中潮带种植,生长繁殖速度快,并能起到滞流消浪作用,达到促淤保滩的效果。 1.促淤增高滩面 大米草促淤效果与潮水有密切关系。1978年5月在射阳县双洋港离海堤外100米处,高程为-0.42米的海滩上,栽了密度为1×1米,长1000米、宽50米呈南北向的大米草带,到1979年秋已长成连片的草滩,1980年12月15日测定,在草带靠海堤的一侧滩面高程为0.08米,淤积成15米宽、50厘米高垄起的滩 Rice grass is a perennial gramineous wet plant, with salt tolerance, flooding, wide adaptability, developed root system, asexual reproduction ability is a pioneer in the transformation of the beach. Now the beach planting rice grass, to promote silt conservation beach, quickly improve the beach soil fertility, the use of rice straw beach reed test results are described below: First, the effect of rice grass to promote silting Paulownia grass in the tide of the beach planting, Rapid growth and reproduction, and can play the role of stagnant wave Xiandao, to promote silt Paul beach effect. 1. Promote siltation beach surface straw rice silt effect is closely related with the tide. In May 1978, at Shuangyang Port, Sheyang County, 100 meters away from the embankment and an elevation of -0.42 meters, we planted rice grass of 1 × 1 meter in length, 1000 meters in length and 50 meters in width, Belt, to the fall of 1979 has become a contiguous grassy beach, December 15, 1980 measured in the grass with a levee on one side of the beach surface elevation of 0.08 meters, siltation into 15 meters wide, 50 cm high ridge of the beach