The sediment in lakes is the pools of material and energy, and the composition and content of organic and inorganic carbon in sediments constrain carbon cycling. This paper conducts research of spatial distribution of organic and inorganic carbon contents in sediments of Tai lake in China based on the data of geochemical survey in the early 2000s. Results show that the organic, inorganic carbon contents in surface sediments (0-20 cm) of the lake are 5.76±4.38, 1.42±1.40 g kg-1 and those in deep sediments (160-180 cm) are 2.30±1.39, 2.30±1.39 g kg-1, respectively. The organic carbon content in deep sediments is close to that in surface sediments, but inorganic carbon content is 1.62 times of that in surface sediments. The ranges and coefficients of variation of carbon contents in deep sediments show lower spatial variability due to limited human activity. This work provides valuable information regarding accurate distribution of organic and inorganic carbon in the surface and deep sediments of Tai lake, which may be useful to evaluate intrinsic pollution in the lake.
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机译：湖泊中的沉积物是物质和能量的汇聚地，沉积物中有机碳和无机碳的组成和含量会限制碳循环。本文基于2000年代初的地球化学调查数据，对中国太湖沉积物中有机碳和无机碳含量的空间分布进行了研究。结果表明，该湖表层沉积物（0-20 cm）的有机，无机碳含量为5.76±4.38，1.42±1.40 g kg-1，深层沉积物（160-180 cm）的有机碳含量为2.30±1.39，2.30分别为±1.39 g kg-1。深层沉积物中的有机碳含量接近表层沉积物，而无机碳含量是表层沉积物的1.62倍。由于人类活动有限，深层沉积物中碳含量的范围和变化系数显示出较低的空间变异性。这项工作提供了有关太湖表层和深层沉积物中有机碳和无机碳的准确分布的有价值的信息，这对于评估该湖的内在污染可能是有用的。
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