Study on Soil Ecological Geochemical Characteristics and Ecological Risk Assessment in Huashan River Basin,Pinghe County
This paper focuses on the soil environmental quality of Pinghuashan River Basin,and analyzes the ecogeochemical characteristics of Cd,Hg,As,Pb,Cr,Cu,Ni and Zn in the soil of the study area through sample collection and detection.The soil quality and ecological risk were evaluated by single factor index and Nemero composite index.The results showed that the most abundant elements in the soil were As,Cu and Pb,while the relatively low elements were Hg,Cr,Ni and Cd,and the overall variation characteristics were weak differentiation and strong differentiation.The single factor index showed that Hg,Cr and Ni were all clean,Cd,As,Cu and Zn were mildly-moderately polluted in local areas,and Pb had the lowest cleaning point of all elements.The Nemero composite index shows that the proportion of sites in light pollution or above was 11.87％.The potential ecological risk index showed that the potential ecological risk in the study area was low.
ecological geochemical characteristicsecological risk assessmentelement sourcesHuashan River Basin
NETL
NSTL
万方数据
