Exchangeable fractions and carbonate bound bring more harmful to humans and the environment; Fe-Mn oxides bound and organic are more stable, but can release when external conditions changed; Residual is known as unavailable state, which is not easily released.
其中可交换态和碳酸盐结合态金属对人类和环境危害较大;铁锰氧化物结合态和有机结合态较为稳定,但在外界条件变化时也可释放出来;残渣态一般称为非有效态,不易释放出来。
参考来源 - 柠檬酸、铁氧化物交互作用对土壤中铜、镉元素形态影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Saline Halos are often formed in the soil containing Fe and Mn oxides and organic material by a concealed sulfide ore body under the action of the ground water.
隐伏硫化物矿体在地下水的作用下，在其覆盖层浅部含铁锰氧化物和有机质的土壤中形成盐晕。
The potential reduction of manganese oxides by PM-NR might promote Mn accumulation in plant tissues.
细胞质膜硝酸还原酶有可能促进氧化锰在根表还原而利于锰在植物中的累积。
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