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首页> 外文期刊>Marine ecology >Enhalus acoroides responses to experimental shoot density reductions in Haad Chao Mai National Park, Trang Province, Thailand
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Enhalus acoroides responses to experimental shoot density reductions in Haad Chao Mai National Park, Trang Province, Thailand

机译：在泰国董里省哈德·潮迈国家公园，Enhalus类固醇对实验芽密度降低的响应

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摘要

The effect of self-shading and competition for light in the seagrass Enhalus acoroides were investigated with a density reduction experiment in Haad Chao Mai National Park, Trang Province, Thailand. The study was carried out in a monospecific meadow with a natural density of 141.0±8.7shoots·m−2. The intent was to determine the response of E.acoroides beds to loss of shoots and thinning, which often occur during typhoons and severe storm activity. Permanent quadrats were manipulated by clipping the seagrass shoots to 140, 72, 36 and 16shoots·m−2, to yield natural, 50%, 25% and 10% densities, respectively. Reducing shoot density in E.acoroides increased underwater light intensity below the canopy, generating increased leaf surface area and shoot weight. Seagrass leaf width, growth rate, and number of leaves per shoot also increased with greater light. The extent of flowering varied among treatments with no consistent trend. Our results demonstrate that increasing the available light to E.acoroides produces an increasing leaf size response as self-shading in the bed is reduced.
机译：在泰国董里省哈德·潮迈国家公园，通过密度降低实验研究了海草Enhalus胶体中自遮蔽和竞争光的影响。该研究在自然密度为141.0±8.7shoots·m-2的单特异性草甸上进行。目的是确定大肠埃希氏菌病床对新梢和稀疏现象的响应，这种现象通常在台风和严重的风暴活动中发生。通过将海草芽剪成140、72、36和16shoots·m-2来操纵永久四足动物，分别产生自然密度，50％，25％和10％的密度。降低大肠杆菌的芽密度可增加冠层下的水下光强度，从而增加叶的表面积和芽的重量。随着光照的增加，海草叶的宽度，生长速度和每枝的叶数也增加了。各处理之间的开花程度不同，没有一致的趋势。我们的研究结果表明，随着床上自阴影的减少，增加对大肠杆菌的可用光会增加叶的尺寸响应。

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