An arbuscular mycorrhizal fungus increased the macroaggregate proportion and reduced cadmium leaching from polluted soil
An arbuscular mycorrhizal fungus increased the macroaggregate proportion and reduced cadmium leaching from polluted soil
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丛枝菌根真菌增加了大团聚体比例并减少了污染土壤中镉的浸出
DOI：
10.1080/15226514.2020.1849014
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发表时间：
2020-12
影响因子：
3.7
通讯作者：
Li Tao
中科院分区：
文献类型：
--
作者：
Zhang Jinxiu;Su Lin;Yan Kai;Li Mingrui;He Yongmei;Zu Yanqun;Zhan Fangdong;Li Tao
摘要采用盆栽试验，研究了玉米（Zea mays L.）作为宿主植物生长在镉（Cd）污染的土壤中，接种丛枝菌根真菌（AMF），漏斗状mosseae。研究了AMF对玉米吸收Cd、水稳性团聚体比例、孔隙水Cd浓度和Cd淋溶的影响。结果表明，AMF显著促进了玉米生物量和地上部对Cd的吸收，并提高了0-40 cm土层中与球囊霉素相关的土壤总蛋白和易提取蛋白的含量。AMF使土壤>0.85 mm水稳性团聚体（大团聚体）比例增加47-88%，有效态Cd含量降低20- 24%。在第一次和第二次淋溶过程中，AMF显著降低了土壤孔隙水中Cd的浓度，使土壤Cd淋溶损失量分别减少了12.6%和19.9%。相关性分析表明，大团聚体比例与土壤总蛋白和易提取球囊霉素相关蛋白含量呈正相关，与孔隙水Cd浓度呈负相关，孔隙水Cd浓度与土壤Cd淋失量呈正相关。因此，AMF减少Cd淋溶与土壤大团聚体比例增加密切相关。新奇AMF显著增加了土壤GRSP含量和大团聚体比例，有助于降低土壤孔隙水中Cd的含量和淋失量。
Abstract A pot experiment was conducted using maize (Zea mays L.) as the host plant grown in cadmium (Cd)-polluted soil and inoculated with an arbuscular mycorrhizal fungus (AMF), Funneliformis mosseae. The effects of AMF on Cd uptake by maize, water-stable aggregate proportion, Cd concentration in pore water and Cd leaching were investigated. The results showed that AMF significantly promoted maize biomass and Cd uptake in shoots, and increased the content of total and easily extractable glomalin-related soil protein in the 0–40 cm soil layers. Furthermore, AMF increased the proportion of >0.85 mm water-stable aggregates (macroaggregates) by 47–88% and decreased the available Cd content in soil by 20–24%. During the first and second leaching events, AMF significantly decreased the Cd concentration in pore water, and reduced the Cd leaching loss from soil by 12.6% and 19.9%, respectively. Correlation analysis indicated that the macroaggregate proportion was positively correlated with the total and easily extractable glomalin-related soil protein content and negatively correlated with the Cd concentration in pore water, and the Cd concentration in pore water was positively correlated with the Cd leaching loss from soil. Therefore, the AMF-reduced Cd leaching was closely related to the increased macroaggregate proportion in soil. Novelty statement AMF significantly increased the GRSP content and the macroaggregate proportion in soil, which contributed to reducing the Cd concentration in pore water and its leaching loss from soil.
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影响因子：
--
作者：
Cao Mingqin;Wu Qiangsheng;Zou Yingning
通讯作者：
Cao Mingqin;Wu Qiangsheng;Zou Yingning
影响因子：
13.6
作者：
Wen Fang;Yonghong Wei;Jianguo Liu
通讯作者：
Wen Fang;Yonghong Wei;Jianguo Liu
DOI：
--
发表时间：
1964-02
期刊：
Soviet soil science
影响因子：
--
作者：
V. Bobchenko
通讯作者：
V. Bobchenko
影响因子：
11.6
作者：
Martínez-García LB;De Deyn GB;Pugnaire FI;Kothamasi D;van der Heijden MGA
通讯作者：
van der Heijden MGA
影响因子：
9.7
作者：
Zhipeng Wu;Zhipeng Wu;K. Mcgrouther;Jidong Huang;Pengbao Wu;Wei-dong Wu;Hailong Wang;Hailong Wang-Hailo
通讯作者：
Zhipeng Wu;Zhipeng Wu;K. Mcgrouther;Jidong Huang;Pengbao Wu;Wei-dong Wu;Hailong Wang;Hailong Wang-Hailo