| 底栖穴居动物对潮滩沉积物中营养盐早期成岩作用的影响 |
| |
| 引用本文： | 刘敏,侯立军,许世远.底栖穴居动物对潮滩沉积物中营养盐早期成岩作用的影响[J].上海环境科学,2003,22(3):180-184,196. |
| |
| 作者姓名： | 刘敏 侯立军 许世远 |
| |
| 作者单位： | 华东师范大学地理系，华东师范大学地理系，华东师范大学地理系 教育部城市与环境动态过程开放实验室，上海200062，教育部城市与环境动态过程开放实验室，上海200062，教育部城市与环境动态过程开放实验室，上海200062 |
| |
| 基金项目： | 国家自然科学基金资助项目，编号40131020、49801018，上海市重点学科建设资助项目。 |
| |
| 摘 要： | 底栖穴居动物是河口潮滩生态系统的重要组成部分，它在潮滩湿地生态系统内营养盐的循环过程中起着非常重要的作用。以长江河口崇明东滩湿地为研究对象，在实验室内，运用对比实验模拟的方法，定量地研究了底栖穴居型甲壳纲蟹类动物对潮滩生态系统中营养盐早期成岩作用的影响。结果发现。蟹类却物质掘穴作用加剧了潮滩沉积物中形态氮和形态磷的迁移。转化，促进了沉积物中的有机氮向NH4^ -N转化，NH4^ -N的转化；有机磷向铁结合态磷，自生磷灰石和钙结合态磷的转化。
|
| 关 键 词： | 底栖穴居动物 潮滩沉积物 营养盐 早期成岩作用 沉积剖面 长江口 |
Effect of Caving Macrobenthos on Early Diagenesis of Nutrients in Tidal Flat Sediments |
| |
| Liu MinHou LijunXu Shiyuan.Effect of Caving Macrobenthos on Early Diagenesis of Nutrients in Tidal Flat Sediments[J].Shanghai Environmental Science,2003,22(3):180-184,196. |
| |
| Authors: | Liu MinHou LijunXu Shiyuan |
| |
| Abstract: | The caving macrobenthos are an important com-ponent in the estuarine tidal flat ecosystem, whichplay a key role in cycling of nutrient in the ecosystem.With comparative and simulated experiment, it hasbeen quantitatively studied of the effect of crabs onthe early diagenesis of nutrients in the sediments fromthe eastern tidal flat of Chongming island in YangtzeEstuary. The findings showed that the burrowing ofcrabs has an important affect on transformation ofnitrogen and phosphorus in tidal flat sediments, andthat it stimulated transformation of organic nitrogenin sediments into ammonium, and ammonium into ni-trate. In addition, the burrowing of crabs also accel-erated conversion of organic phosphorus into ironbounded phosphorus, autogenesis phosphorus and cal-cium bounded phosphorus. |
| |
| Keywords: | Caving macrobenthosTidal flat sedimentNutrientEarly diagenesisSediment depth profileYangtze estuary |
| 本文献已被 CNKI 维普 等数据库收录！ |
