...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Estuarine Coastal and Shelf Science >Dynamics of biogeochemical properties in temperate coastal areas of freshwater influence: Lessons from the Northern Adriatic Sea (Gulf of Trieste)
【24h】

Dynamics of biogeochemical properties in temperate coastal areas of freshwater influence: Lessons from the Northern Adriatic Sea (Gulf of Trieste)

机译：温带沿海淡水影响地区生物地球化学性质的动力学：北亚得里亚海（的里雅斯特湾）的教训

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High spatial and temporal variabilities of biogeochemical properties are prominent features of regions under freshwater influence as a result of multiple factors. Understanding the ecological functioning of these ecosystems, which provide important services for humans, is challenging since it requires adequate observational strategies and efforts. Multi-years (1999-2006) continuous observations in the northernmost part of the Adriatic Sea (Gulf of Trieste) allowed us to compute a dimatological description of seasonal dynamics of biogeochemical properties for three relevant sites: a coastal area directly influenced by a river, an off-shore area located in the centre of the Gulf and a coastal area located far from potential source of external nutrients. The analysis of the climatologies provides a quantitative corroboration of the conceptual scheme for biogeochemical and ecological seasonal dynamics of temperate coastal areas under freshwater influence already proposed in literature, highlighting the role of river input, lateral transport, stratification regime and interaction with bottom environment as driving factors. While all areas follow a common pattern of succession of ecological processes, spatial variability accounts for a significant decrease of the absolute trophic state, and for a phase delay in biogeochemical dynamics. Results show that spatial heterogeneity is an inherent structural feature of coastal ecosystems, suggesting that the evaluation of the quality status of coastal ecosystems should be made by using different reference terms for different sub-areas.
机译：由于多种因素的影响，生物地球化学特性的高时空变化是受淡水影响的区域的主要特征。理解这些为人类提供重要服务的生态系统的生态功能具有挑战性，因为这需要适当的观察策略和努力。在亚得里亚海最北部（的里雅斯特湾）进行的多年（1999-2006年）连续观测使我们能够对三个相关地点的生物地球化学特征的季节性动态进行双生物学描述：沿海地区受河流直接影响，位于海湾中心的近海区域和远离潜在外部养分来源的沿海地区。气候分析为文献中已经提出的淡水影响下温带沿海地区生物地球化学和生态季节动态的概念方案提供了定量的佐证，突出了河流输入，横向运输，分层制度以及与底层环境的相互作用作为驱动因素的作用。因素。尽管所有地区都遵循一种常见的生态过程演替模式，但空间变异性却导致绝对营养状态显着下降，并导致生物地球化学动力学发生相位延迟。结果表明，空间异质性是沿海生态系统的固有结构特征，表明对沿海生态系统质量状况的评估应针对不同的分区使用不同的参考术语。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号