Can earthworm-secreted calcium carbonate immobilise Zn in contaminated soils?
Can earthworm-secreted calcium carbonate immobilise Zn in contaminated soils?
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DOI：
10.1016/j.soilbio.2014.01.012
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发表时间：
2014-07-01
影响因子：
9.7
通讯作者：
Hodson, Mark E.
中科院分区：
文献类型：
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作者：
Brinza, L.;Schofield, Paul F.;Hodson, Mark E.
研究了土壤锌与蚯蚓分泌的碳酸钙颗粒的相互作用。蚯蚓被饲养在锌浓度高达750 mg kg（-1）的农业土壤中，以及两个前矿区土壤中，锌浓度分别为500和120 mg kg（-1）。21 ~ 42 d后，蚯蚓积累了260 ~ 470 mg Zn kg（-1）。产粒量为0.027 ~ 2.11 mg CaCO3蚯蚓（-1）天（-1），与土壤和土壤溶液pH呈正相关（r分别为0.66和0.85）
We investigated the interaction of soil Zn with calcium carbonate granules secreted by the earthworm Lumbricus terrestris. Earthworms were kept in agricultural soil amended with ZnSO4 to give Zn concentrations up to 750 mg kg(-1) and in two former mine site soils containing 500 and 120 mg Zn kg(-1). After 21-42 days the earthworms accumulated 260-470 mg Zn kg(-1). Granule production was 0.027 -2.11 mg CaCO3 earthworm(-1) day(-1) and was positively correlated with soil and soil solution pH (r = 0.66 and 0.85 respectively, p