• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Lakes & Reservoirs >Identification of processes regulating the colour and colour change in an oligotrophic, hardwater, groundwater-fed lake, Blue Lake, Mount Gambier, South Australia
【24h】

Identification of processes regulating the colour and colour change in an oligotrophic, hardwater, groundwater-fed lake, Blue Lake, Mount Gambier, South Australia

机译：在南澳大利亚州甘比尔山的蓝湖，贫水，硬水，地下水喂养的湖中确定调节颜色和颜色变化的过程

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

Blue Lake, located in Mount Gambier, South Australia, is the only known global example of a lake that annually changes colour in the blue end of the spectrum. A series of experiments, including Secchi depth readings, in situ spectroradiometric analysis and spectrophotometric analysis of water samples, were designed to identify the factors affecting the colour of Blue Lake and the processes that regulate these factors. Based on the results of these experiments, the processes controlling the colour and colour change in Blue Lake are described and quantified. Blue Lake colour was observed to change between AS 2700 Aqua during winter (April through to October) and Blue Bell during summer (December through to February). The colour change in Blue Lake is measurable and reflects primarily the regulation of the concentration of humic substances in the upper part of the lake by calcite precipitation. The calcite precipitation is driven by degassing of carbon dioxide from the epilimnion of the stratified lake in summer. The humic substances co-precipitate with the calcite. Photodegradation of the humic substances may also occur.
机译：位于南澳大利亚州芒特甘比尔的蓝湖是全球唯一已知的每年都会改变光谱蓝端颜色的湖泊。设计了一系列实验，包括Secchi深度读数，原位光谱分析和水样的分光光度分析，以识别影响蓝湖颜色的因素以及调节这些因素的过程。根据这些实验的结果，描述并量化了控制Blue Lake颜色和颜色变化的过程。在冬季（4月至10月）和夏季（12月至2月）的蓝铃之间，观察到蓝湖的颜色在AS 2700 Aqua之间变化。蓝湖的颜色变化是可测量的，并且主要反映了方解石沉淀对湖上部腐殖质浓度的调节。在夏季，方解石的沉淀是由分层湖的结缘所产生的二氧化碳脱气驱动的。腐殖质与方解石共沉淀。腐殖质也可能发生光降解。

著录项

相似文献

  • 外文文献
  • 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