The Choghakhor Wetland in Chaharmahal and Bakhtiari Province (Iran) has a significant role in maintaining water and sediment quality, because the wetland acts as a sink for contaminants that can pollute the aquatic ecosystem and affect human health. The present study uses a simple geostatistical technique to investigate the spatial variability of Cd and Pb in the Choghakhor Wetland to link the spatial variations of sediments to heavy metal contents in Myriophyllum spicatum. It was hypothesized that the heavy metal contents in the Choghakhor Wetland sediments impacted the concentration values in macrophytes. The value of heavy metals in sediments ranges from 0.54- to 1.84-μg/g dry weight (dw) for Cd, and from 1.32- to 2.46-μg/g dw for Pb, with a mean value of 1.12- and 1.82-μg/g dw, respectively. The mean value of Cd and Pb was 1.14- and 1.67-μg/g dw, respectively, in the aquatic macrophyte Myriophyllum spicatum, with corresponding ranges of 0.9–1.83-μg/g dw and 1.33–1.95-μg/g dw. There was a spatial structure in the Cd and Pb contents in the wetland sediments, with lower contents in the northern zone despite the values quantified in the south. We observed a direct spatial relationship between the Cd content in sediments and the Cd concentration in M. spicatum, and confirmed an effect of plant uptake for Cd. However, there were no significant differences between Pb in sediments and Pb in samples of M. spicatum, which implied that other factors like discharged industrial waste could also affect the accumulation of metals in plants. It can be concluded that spatial patterns indicated differences in the territory of the sediment Cd content at the Choghakhor Wetland localization in association with sediment enrichment. However, it was surprising that Pb did not show this pattern despite anthropic pressure.

中文翻译：

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欧亚水草（Myriophyllum spicatum）中Cd和Pb的生物积累与湿地沉积物中金属含量的作用有关。

Chaharmahal和Bakhtiari省（伊朗）的Choghakhor湿地在维持水和沉积物质量方面起着重要作用，因为湿地充当了可能污染水生生态系统并影响人类健康的污染物的汇入地。本研究中使用了一个简单的地质统计技术来调查镉和铅中的Choghakhor湿空间变异中沉积物的空间变化链接到重金属含量狐尾藻。假设Choghakhor湿地沉积物中的重金属含量会影响大型植物中的浓度值。沉积物中重金属的镉含量为0.54-1.84μg/ g干重（dw），铅为1.32-2.46-μg/ g干重（dw），平均值分别为1.12-和1.82-μg / g dw。水生大型植物Myriophyllum spicatum中Cd和Pb的平均值分别为1.14和1.67-μg/ g dw，对应范围为0.9–1.83-μg / g dw和1.33–1.95-μg / g dw。湿地沉积物中的Cd和Pb含量存在空间结构，尽管南部的含量定量，北部的含量较低。我们观察到沉积物中Cd含量与sp.atum中的Cd浓度之间存在直接的空间关系。，并确认了植物吸收Cd的效果。然而，有Pb之间沉积物和Pb中的样品没有显著差异M.藻，这意味着其他因素，如排出的工业废水也可能影响金属的在植物中的积累。可以得出的结论是，空间格局表明在Choghakhor湿地本地化区沉积物中Cd含量的区域与沉积物富集有关。然而，令人惊讶的是，尽管有人为压力，Pb仍未显示出这种模式。