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首页> 外文期刊>Open Journal of Soil Science >Analysis of Soil Fertility Quality and Heavy Metal Pollution in the Dawen River Basin, China
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Analysis of Soil Fertility Quality and Heavy Metal Pollution in the Dawen River Basin, China

机译：中国Dawen River河流域土壤生育质量和重金属污染分析

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摘要

Understanding the soil fertility status and heavy metal pollution is of great significance for targeted environmental management and governance in a basin. The Dawen River Basin (DRB), a sub-basin in the lower Yellow River area in China, was taken as the study area. A total of 107 surface soil samples were collected in the DRB in October 2019, and the sampling points were mainly located within 10 km of the mainstream of the Dawen River. Based on the measured soil nutrient indicators (organic matter, total nitrogen, total phosphorus, and total potassium) and heavy metal contents (As, Hg, Cd, Cr, and Pb), the status and spatial distribution of soil fertility and heavy metal pollution in the DRB were evaluated by combining the use of the Nemerow index method, the land accumulation index method, and the general Kriging interpolation method. The results showed that the soil fertility in the DRB was generally at a normal level or below, while some areas of Taian City, Xintai City, and Ningyang County had relatively high soil nutrient content. The content of heavy metals in the soil of the DRB was mainly at a safe level, but the single pollution index and geo-accumulation index implied that there was light to moderate pollution of heavy metals in individual samples, and the content of heavy metals in urban and industrial agglomerations is relatively high.
机译：了解土壤肥力地位和重金属污染对盆地的目标环境管理和治理具有重要意义。 Dawen River盆地（DRB）是中国较低的黄河地区的次级盆地，被视为研究区。 2019年10月，DRB中收集了107种表面土壤样品，采样点主要位于Dawen河主流的10公里内。基于测量的土壤养分指示剂（有机物，总氮，总磷和总钾）和重金属含量（如HG，CD，Cr和Pb），土壤肥力和重金属污染的地位和空间分布通过组合使用Nemerow指数方法，土地积累指数方法和一般Kriging插值方法来评估DRB。结果表明，DRB的土壤肥力通常在正常水平或以下，而泰安市和宁阳县的一些地区的土壤营养含量相对较高。 DRB土壤中重金属的含量主要处于安全水平，但单一的污染指数和地地层指数暗示各种样品中的重金属中的中度污染，以及重金属的含量城市和工业集聚相对较高。

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