试论有害微量元素As、Pb、Cd、Hg对生态系统的毒害作用

RESEARCH ON THE TOXICITY OF TRACE ELEMENTS As. Pb. Cd. Hg TO THE ECOSYSTEM

本文论述了有害微量元素Cd、Pb、As、Hg的物理、化学、病理学、生物无机化学及地球化学性质,探讨了这四种元素在生态系统中的变迁,对动植物的毒害作用机理及与人的健康的关系.并提出应当重视微观生态学的研究.

This review inquires into the physical、 chemical、 inorganic biochemical and geochemi-cal properties of trace elements As、Cd、Pb、Hg, and probes into the movements of the four elements in the ecosystem and their toxicity to organisms in particular to humans. In the end of this review, it is suqqested that ecologists should pay more attention to microecolo-gy than to macroecology.