摘要
琼中黎母山-湾岭地区位于海南岛中部,调查发现该地区土壤同时具有富硒、富碘的特征。以研究区表层(0~20 cm)、中层(80~100 cm)、深层(180~200 cm)土壤样品分析结果为基础,探讨了土壤硒、碘的分布特征及其影响因素。结果显示,表层土壤中Se、I质量分数具有高正相关性,并与高程为正相关关系,结合已有研究成果,推断在研究区范围内降雨作用是研究区表层土壤Se、I质量分数空间分布格局的关键影响因素。通过分析表层、中层、深层土壤Se、I质量分数与土壤pH值、总有机碳(TOC)、Al_(2)O_(3)、Fe_(2)O_(3)质量分数的相关关系和变化规律,总结了研究区Se、I在土壤垂向剖面上的赋存、迁移规律。这些结果可为当地优质土地资源的高效利用提供科学依据,也可为土壤Se来源、迁移研究提供新的证据。
Qiongzhong Limushan-Wanling area is located in the middle of Hainan Island,where has an abundance of selenium-rich and iodine-rich soil resources.The distribution characteristics of Se and I contents were analyzed based on the analysis results of soil samples in the topsoil(0-20 cm),middle-layer-soil(80-100 cm),and deep-soil(180-200 cm)of the study area.The correlation characteristics of Se and I in soil and their relationship with elevation potentially indicate that the input of rainfall to soil Se and I is a key factor leading to the enrichment of Se and I.By analyzing the correlation and change law between the contents of Se,I and the contents of pH,soil organic matter,Al _(2)O_(3)and Fe_(2)O_(3)in top,middle and deep layer soil,the enrichment and migration of Se and I in the vertical section of soil in the study area was summarized.These results can provide scientific basis for the efficient use of local high-quality land resources and provide new evidence for the study of soil Se source and migration.
作者
龚晶晶
高健翁
杨剑洲
吴慧
唐世新
马生明
Gong Jingjing;Gao Jianweng;Yang Jianzhou;Wu Hui;Tang Shixin;Ma Shengming(Key Laboratory of Geochemical Exploration,Ministry of Nature Resources,Langfang Hebei 065000,China;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang Hebei 065000,China)
出处
《地质科技通报》
CAS
CSCD
北大核心
2021年第6期255-267,共13页
Bulletin of Geological Science and Technology
基金
中国地质调查局地质调查项目(DD20190305)。
关键词
琼中
土壤
硒
碘
降雨
Qiongzhong area
soil
Se
I
precipitation
