Spatial differentiation characteristics of soil trace elements on the county scale and its relationship with health in Hubei Province
PAN Fangjie1,2，WANG Hongzhi1,2，WANG Luyao1,2，GONG Shengsheng1,2
1.Key Laboratory for Geographical Process Analysis & Simulation， Central China Normal University， Wuhan 430079， China；2.Research Institute of Sustainable Development， Central China Normal University， Wuhan 430079， China
Abstract：Soil trace elements are closely related to human health. Based on the data of soil census and population census， the spatial differentiation of soil available trace elements on the county scale of Hubei Province was analyzed by using spatial analysis of GIS and mathematical statistics of SPSS， and the correlation between trace elements and human health was discussed. The results are as follows.1)There are significant spatial aggregation characteristics of soil trace elements including Zn， B， Mo， Mn， Fe and Cu on the county scale， and there is a difference in the degree of aggregation. The Moran's I value of the B element is the largest and the spatial clustering property is the best， while that of Zn element is the smallest and the spatial aggregation is the worst. The proportion of high value clustering (HH) in the spatial distribution pattern of soil trace elements is the highest， especially the B element. The proportion of hot spots in the distribution of trace elements is higher than that in the negative hotspots， and there are some similarities in the positive and negative hotspots between different trace elements in space. 2)There are significant spatial aggregation characters in the distribution of population health on the county scale of Hubei Province， which are not distributed randomly in the whole area. At the same time， the spatial aggregation characteristic of the longevity index is slightly higher than the mortality rate， indicating that longevity population distribution is relatively concentrated on the county scale of Hubei Province. 3)The correlation of Mo and Cu with the selected population health index on the county scale was significant， indicating that it affected the regional population health to a certain extent. Although Zn and Mn are trace elements that have been demonstrated to be beneficial to human health， the correlation between longevity index and mortality rate is not significant on the county scale in this study. This work is helpful to understand the spatial heterogeneity of soil trace elements and provide reference for further research on soil environment and population health.
潘方杰,王宏志,王璐瑶,龚胜生,. 湖北省土壤微量元素县域分异特征及其与健康相关性[J]. 华中师范大学学报(自然科学版), 2019, 53(1): 137-146.
PAN Fangjie,WANG Hongzhi,WANG Luyao,GONG Shengsheng,. Spatial differentiation characteristics of soil trace elements on the county scale and its relationship with health in Hubei Province. journal1, 2019, 53(1): 137-146.
2019, Vol. 53 
