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首页> 外文期刊>Limnology >Fundamental hydrochemical parameters of the Songkhram River in Northeast Thailand: foundation data for the study of an endangered tropical wetland ecosystem
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Fundamental hydrochemical parameters of the Songkhram River in Northeast Thailand: foundation data for the study of an endangered tropical wetland ecosystem

机译：泰国东北部宋卡兰河的基本水化学参数：濒危热带湿地生态系统研究的基础数据

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摘要

The Songkhram River, the third largest tributary of the Mekong, represents an important area of wetland biodiversity associated with the Mekong River system in tropical Southeast Asia. This area is endangered by human population growth and the associated spread of commerce and industry. Nevertheless, no adequate hydrochemical data are available to act as a baseline for further limnological studies. We carried out measurements of air and water temperatures, pH, conductivity, dissolved oxygen, salinity, total dissolved solids and transparency at six sites along the length of the river from July 2005 to May 2006. The ambient temperature ranged from 24 to 40 °C with an overall average of 29.4 °C, while the average water temperature is 28.2 °C and never exceeds 35.0 °C. The pH value is within the range of 5.3–7.4 (mean 6.11). There is a trend towards increasing pH in the dry season when the water level is low. Conductivity varies spatially and temporally among study sites. There is a trend towards increasing conductivity when the water level decreases, and conversely with increasing water level. Temporal and spatial variations in dissolved oxygen show a trend that suggests an increase as the water level decreases. The total dissolved solids show no variation either temporally or spatially in the wet season but vary considerably in the dry season. These data provide a sound basis for comprehensive future studies on the ecology of the Songkhram River.
机译：湄公河第三大支流宋卡兰河，代表了与热带东南亚湄公河系统有关的湿地生物多样性的重要地区。该地区受到人口增长以及相关的工商业扩散的威胁。然而，没有足够的水化学数据可作为进一步的语言学研究的基准。从2005年7月至2006年5月，我们在沿河长度的6个地点进行了空气和水温，pH，电导率，溶解氧，盐度，总溶解固体和透明度的测量。环境温度范围为24至40°C的平均水温为29.4°C，而平均水温为28.2°C，并且永远不会超过35.0°C。 pH值在5.3-7.4的范围内（平均值6.11）。在水位低的干旱季节，pH值有增加的趋势。电导率在研究地点之间时空变化。当水位降低时，电导率有增加的趋势，反之，水位升高时，电导率有增加的趋势。溶解氧的时空变化趋势表明，随着水位的降低，溶解氧的含量会增加。总溶解固体在雨季在时间或空间上均无变化，但在旱季则有很大变化。这些数据为进一步研究宋卡兰河的生态学提供了良好的基础。

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  • 来源
    《Limnology》 |2009年第1期|7-15|共9页
  • 作者

    Rojchai Satrawaha; Preecha Prathepha; Ross Andrews; Trevor Petney;

  • 作者单位

    Walai Rukhavej Botanical Research Institute Mahasarakham University Khantharavichai Maha Sarakham 44150 Thailand;

    Walai Rukhavej Botanical Research Institute Mahasarakham University Khantharavichai Maha Sarakham 44150 Thailand;

    Pharmacy and Medical Sciences University of South Australia Adelaide Australia;

    Zoology Institute I Department of Ecology and Parasitology University of Karlsruhe Kornblumenstrasse 13 76131 Karlsruhe Germany;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Tropical limnology; Thailand; Songkhram river; Hydrochemical properties; Mekong basin;

    机译：热带林学;泰国;宋卡兰河;水化学性质;湄公河流域;

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