| 海南岛新村湾营养负荷对海菖蒲的影响研究 |
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| 引用本文： | 黄道建,黄小平,黄良民.海南岛新村湾营养负荷对海菖蒲的影响研究[J].海洋科学进展,2007,25(2):200-207. |
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| 作者姓名： | 黄道建 黄小平 黄良民 |
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| 作者单位： | 1. 中国科学院,南海海洋研究所热带海洋环境动力学重点实验室,广东,广州,510301;中国科学院,研究生院,北京,100049
2. 中国科学院,南海海洋研究所热带海洋环境动力学重点实验室,广东,广州,510301 |
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| 基金项目： | 联合国环境规划署/全球环境基金(UNEP/GEF)项目
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中国科学院知识创新工程项目 |
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| 摘 要： | 对海南岛新村湾海草床的优势种——海菖蒲(Enhalus acoroides)的茎枝特征、茎枝密度、生物量和不同组织营养素含量进行了研究,并探讨了海水和沉积物间隙水营养负荷对其的影响。结果表明,(1)海菖蒲的茎枝特征(叶长、宽和枝重)、茎枝密度和地上生物量存在显著的空间差异,这些因子与海水和沉积物间隙水DIN含量呈负相关;(2)海菖蒲TN、TP质量分数随着样区的变化而产生显著差异,海菖蒲TN质量分数与其所在样区海水和沉积物间隙水DIN浓度呈显著正相关;(3)随着水体N负荷的增加,海菖蒲叶单位面积附着藻类生物量显著增加。本次研究的结果表明,网箱养殖引起的营养负荷是导致海草衰亡的潜在原因之一,引起了新村湾网箱养殖区海草床的退化。
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| 关 键 词： | 海菖蒲 营养盐负荷 网箱养殖 海南岛 |
| 文章编号： | 1671-6647（2007）02-0200-08 |
| 修稿时间： | 2006-07-07 |
Study on Effects of Nutrient Loading on Enhalus acoroides in the Xincun Bay, Hainan Island |
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| HUANG Dao-jian,HUANG Xiao-ping,HUANG Liang-min.Study on Effects of Nutrient Loading on Enhalus acoroides in the Xincun Bay, Hainan Island[J].Advances in Marine Science,2007,25(2):200-207. |
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| Authors: | HUANG Dao-jian HUANG Xiao-ping HUANG Liang-min |
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| Institution: | 1. South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; 2. Graudate School, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | In this paper,the shoot features,shoot density,biomass and nutrient contents in different tissues of dominant species Enhalus acoroides in the seagrass meadow in the Xincun Bay,Hainan Island are studied,and the effects of nutrient loading of seawater and sediment pore water on Enhalus acoroides are discussed.It is shown from the study results that there are significantly spatial different in three factors including shoot features(leaf length,leaf width and shoot weight),shoot density and above-ground biomass of Enhalus acoroides,and the three factors are negatively correlated with the dissolved inorganic nitrogen(DIN) contents of seawater and sediment pore water;there are significant difference between the total nitrogen(TN) and total phosphorus(TP) contents of Enhalus acoroides at 3 sampling sites,and the TN contents of Enhalus acoroides are positively correlated with the DIN concentrations of seawater and sediment pore water at their respective sites;and the epiphyte biomass on unit area of Enhalus acoroides leaf increased significantly with increasing nitrogen nutrient loading in the water column.It is shown from the study resluts that the cage culture-derived nutrient loading is a potential cause for the seagrass decline and causes the degeneration of seagrass meadow in the cage culture area of the Xincun Bay. |
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| Keywords: | Enhalus acoroides nutrient loading cage culture Hainan Island |
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