城市化学灾害属于局域性环境灾害的范畴。
City chemical disaster belongs to the category of local environmental disaster.
土壤元素的缓变型地球化学灾害具有重要危害。
Delayed geochemical hazard (DGH) of soil elements in soil will do serious harm to the environment.
其成果是环境评价、地球化学灾害预测与防治、合理肥施的科学依据。
The research results can be of great significance for environmental study, geochemical hazard forecast and prevention, and suitable fertilization.
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