Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry
Developing sericulture industry is a promising model for the utilization of soils heavily contaminated with cadmium (Cd), but the management of polluted silkworm excrement (SE) becomes challenging. This study aimed to evaluate the effects of the SE biochar (SB) with Cd (SB-Cd) and without Cd (SB-Cd...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324015318 |
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| author | Yongbing Jiang Xiyun Yang Shimeng Jiang Hui Cao Ming Wang Zhangbao Li |
| author_facet | Yongbing Jiang Xiyun Yang Shimeng Jiang Hui Cao Ming Wang Zhangbao Li |
| author_sort | Yongbing Jiang |
| collection | DOAJ |
| description | Developing sericulture industry is a promising model for the utilization of soils heavily contaminated with cadmium (Cd), but the management of polluted silkworm excrement (SE) becomes challenging. This study aimed to evaluate the effects of the SE biochar (SB) with Cd (SB-Cd) and without Cd (SB-Cd free) on the chemical properties of paddy soil, the mulberry leaf quality and the accumulation of Cd in mulberry. The soil incubation experiments showed that the two SBs all raised the acidic soil pH (20.24 %∼49.97 %) significantly (P < 0.05) with the increasing SB addition rates. The two SBs increased the soil cation exchange capacity (CEC) and played an essential role in reducing the phytoavailability of Cd. The pot experiment elucidated the two SBs all promoted the growth of mulberry, increased the crude protein content and the chlorophyll content, reduced the total sugar content in leaves. The Cd concentrations in root, stem, leaf were decreased with the increase of SB respectively, but no significant differences were found between the same additions of SB-Cd free and SB-Cd. The use of SB-Cd for remediation of the Cd polluted soils could be a reasonable method to address the Cd polluted SE. |
| format | Article |
| id | doaj-art-3572c111a97b42e6b210e9d1f7753e10 |
| institution | Kabale University |
| issn | 0147-6513 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj-art-3572c111a97b42e6b210e9d1f7753e102025-01-23T05:25:38ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01289117455Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberryYongbing Jiang0Xiyun Yang1Shimeng Jiang2Hui Cao3Ming Wang4Zhangbao Li5School of Metallurgy and Environment, Central South University, Changsha 410083, PR China; The Sericultural Research Institute of Hunan Province, Changsha 410127, PR China; Corresponding author at: School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.School of Metallurgy and Environment, Central South University, Changsha 410083, PR China; Corresponding author.The Sericultural Research Institute of Hunan Province, Changsha 410127, PR ChinaThe Sericultural Research Institute of Hunan Province, Changsha 410127, PR ChinaThe Sericultural Research Institute of Hunan Province, Changsha 410127, PR ChinaThe Sericultural Research Institute of Hunan Province, Changsha 410127, PR ChinaDeveloping sericulture industry is a promising model for the utilization of soils heavily contaminated with cadmium (Cd), but the management of polluted silkworm excrement (SE) becomes challenging. This study aimed to evaluate the effects of the SE biochar (SB) with Cd (SB-Cd) and without Cd (SB-Cd free) on the chemical properties of paddy soil, the mulberry leaf quality and the accumulation of Cd in mulberry. The soil incubation experiments showed that the two SBs all raised the acidic soil pH (20.24 %∼49.97 %) significantly (P < 0.05) with the increasing SB addition rates. The two SBs increased the soil cation exchange capacity (CEC) and played an essential role in reducing the phytoavailability of Cd. The pot experiment elucidated the two SBs all promoted the growth of mulberry, increased the crude protein content and the chlorophyll content, reduced the total sugar content in leaves. The Cd concentrations in root, stem, leaf were decreased with the increase of SB respectively, but no significant differences were found between the same additions of SB-Cd free and SB-Cd. The use of SB-Cd for remediation of the Cd polluted soils could be a reasonable method to address the Cd polluted SE.http://www.sciencedirect.com/science/article/pii/S0147651324015318Silkworm excrementBiocharImmobilizationCadmiumMulberry |
| spellingShingle | Yongbing Jiang Xiyun Yang Shimeng Jiang Hui Cao Ming Wang Zhangbao Li Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry Ecotoxicology and Environmental Safety Silkworm excrement Biochar Immobilization Cadmium Mulberry |
| title | Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry |
| title_full | Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry |
| title_fullStr | Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry |
| title_full_unstemmed | Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry |
| title_short | Influence of biochar derived from Cd polluted silkworm excrement on the phytoavailability of Cd in a paddy soil and its accumulation in mulberry |
| title_sort | influence of biochar derived from cd polluted silkworm excrement on the phytoavailability of cd in a paddy soil and its accumulation in mulberry |
| topic | Silkworm excrement Biochar Immobilization Cadmium Mulberry |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324015318 |
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