| Autor: |
ZHAO Jian, SHI Hua-ding, WU Xiao, HAN Xiao-bin, PENG Yu-long, MA Jin, LIU Jing |
| Jazyk: |
čínština |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Journal of Agricultural Resources and Environment, Vol 36, Iss 3, Pp 298-303 (2019) |
| ISSN: |
2095-6819 |
| Popis: |
The study on soil zinc distribution and its influencing factors in Zunyi City is of great significance for mastering the spatial distribution of zinc in the region, soil environmental protection and human health. We collected 701 representive surface soil samples in Zunyi, and analyzed their zinc concentrations. GS+ software was used to build a semi variant function model, and the ordinary kriging method was used to predict the spatial distribution of zinc in the surface soil of Zunyi. In addition, the potential effects of physical and chemical properties of soil on the concentration and distribution of zinc in soil were also discussed. The results showed that the total zinc content of soil in Zunyi was ranged from 40.51 mg·kg-1 to 315.74 mg·kg-1, with the mean value of 107.9 mg·kg-1, The high and low value areas of soil zinc concentration were mainly concentrated in southeastern and southwestern Zunyi. The content of total zinc in soil had no significant correlation with pH, but had a significant positive correlation with soil organic matter and altitude. The study found that zinc in Zunyi area had obvious distribution in high and low value areas by analyzing the distribution of zinc and its influencing factors in Zunyi. The main factors causing this difference were parent material, soil organic matter and altitude. Spatial prediction of soil properties was complicated. In the future, more attention should be paid to the correlation among soil attributes and the influence of environmental factors, so as to obtain more accurate results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
