...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecosystems >The Spatial Heterogeneity of Vegetation, Hydrology and Water Chemistry in a Peatland with Open-Water Pools
【24h】

The Spatial Heterogeneity of Vegetation, Hydrology and Water Chemistry in a Peatland with Open-Water Pools

机译：植被，水性和水化学的空间异质性与开放水池的泥土

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

Ombrotrophic bogs can comprise a mosaic of vegetation patches and open-water pools, with hydrological and biogeochemical connections between pools and the surrounding peat and vegetation. To establish these connections, we studied the spatial heterogeneity of hydrology and water chemistry in two zones of distinct vegetation assemblages in the subboreal Grande plee Bleue peatland, southern Quebec, Canada. We show that seasonal water-level fluctuations are greater and organic C, N and P concentrations are higher in the peat pore water of a forested zone than in a neighboring open-bog zone; that vegetation is responsible for 69% of the spatial variations in hydrology and water chemistry. Vegetation also explains 31% of the temporal variation in water chemistry, with higher increases in C, N and P concentrations over the growing season in the forested peat and pools than in the open-bog zone. We also show that C, N and P concentrations and water-level fluctuations in pools, especially during precipitation events, were lower than in the surrounding peat. Our results suggest the existence of small "watersheds" to the pools with water flowing in during wet and out during dry periods. Localized patterns emerge from the vegetation-hydrology-water chemistry interactions, with pools influencing the persistence of trees in the central part of an ombrotrophic bog.
机译：令人畏缩缺乏博客可以包括植被斑块和开放水池的马赛克，水池与周围泥炭和植被之间的水文和生物地球化学连接。为了建立这些联系，我们研究了加拿大魁北克州南部南部德国普雷雷爆炸泥潭的两个区域水文和水化学的空间异质性。我们表明，季节性水位波动较大，植物孔隙水的植物孔隙水中的有机C，N和P浓度高于邻近的开放凸区;植被负责水文和水化学的69％的空间变化。植被还解释了水化学的时间变化的31％，在森林泥炭和池中的生长季节中，C，N和P浓度较高，而不是在开放沼泽区。我们还表明，池中的C，N和P浓度和水位波动，特别是在降水事件中，低于周围泥炭。我们的结果表明，在干燥时期潮湿和外面的水中流入水池的小“流域”的存在。局部模式从植被水文 - 水化学相互作用中出现，水池影响令人障碍沼泽的中枢部分的树木的持久性。

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