山东半岛蓝色经济区土壤中元素的分布与富集研究

（目的]研究山东半岛蓝色经济区土壤中元素的分布与富集。方法]按1km^2采集1件袁层土壤样品，4km^2组合成1件分析样品，4km^2采集1件深层土壤样品，16km^2组合成1件分析样品，测试Ag、As、Au、B、Ba、Be、Bi、Hr、C等54项指标。结果]山东半岛蓝色经济区土壤地球化学调查是研究这些指标在表层、深层土壤中的分布规律，认为表层、深层土壤中除与金及多金属成矿作用有关的Ag、Au、Hg、Mo、S、Sb等元素和Cl、Br、I等卤族元素空间变异性大外，大部分元素分布均匀，且表层、深层土壤元素分布具有相似性。结论]对比区内表层、深层土壤元素地球化学含量值的变化，可以看出大部分指标在表层土壤中的含量继承了土壤母质，后期人类活动对其影响较小；但是，表层土壤中SOC、N、Hg、P、S、Se等指标的富集和pH明显降低，表明表生作用和人类活动等因素已对这些指标的分布分配产生明显影响．

Study of Elements Distribution and Accumulation in Soil of Shandong Peninsula Blue Economic Zone

Objective ] The research aimed to study elements distribution and accumulation in soil of Shandong Peninsula Blue Economic Zone. Method] In soil geochemical survey of Shandong Peninsula Blue Economic Zone, 54 indices of soil samples like Ag, As, Au, B, Ba, Be, Bi, Bi, Br, C, etc. were tested, and the investigation were based on methods such as collecting one surface soil sample per square kilometer, the sample of 4 km2 combined into an analytical sample ; collecting one deep soil sample per 4 km2 , combined 16 km2 of the deep soil samples into an analytical sample. Result] The distribution characteristics of dements in surface and deep soil were analyzed, and the results showed that most of the elements and index were evenly distributed and the distribution in surface and deep soil were similar. However, the spatial variabilit~ 6f Au and multi-metal ore-forming elements like Ag, Au, Hg, Mo, S, Sb, etc. , and halogen element like C1, Br, I, etc. were detected in a big degree. Conclusion] Contrasting the regional data of the surface and deep soil samples, most of the elements and index in surface soil inherited the feature of soil parent materials, indicating that the late effects of human activities was small. Nevertheless, in surface soil, indicators of SOC, N, Hg, P, S, Se, etc. were enriched, ~ld pH obviously decreased, indicating that supergene processes, human activities and other factors had caused a significant impacts on its spatial distribution.