| 李买军,马 晗,郭海宁,王小治,封 克,顾洪如.发酵床养猪对土壤重金属含量的影响[J].农业环境科学学报,2014,33(3):520-525. |
| 发酵床养猪对土壤重金属含量的影响 |
| Effect of Bio-bed Pig Raising on Heavy Metal Contents in Soil |
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| DOI：10.11654/jaes.2014.03.018 |
| 中文关键词: 猪发酵床 垫料 土壤 传统养殖 重金属 |
| 英文关键词: bio-bed pig raising bio-bed material soil traditional pig raising heavy metal |
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| 摘要点击次数: 2265 |
| 全文下载次数: 1994 |
| 中文摘要: |
| 重金属已成为影响土壤健康的限制因素，通过对发酵床垫料、垫料下土壤、发酵床外土壤和传统猪场的土壤样品进行连续定点测定，评价发酵床养殖方式对土壤环境中重金属含量的影响。结果表明，5个月的发酵床养殖，Cu、Zn、Cr、Pb在垫料层0~40 cm累积明显，分别增加了41.23、51.73、13.52 mg·kg-1和5.23 mg·kg-1，垫料下方土壤Cr增加14.30 mg·kg-1，累积量较Cu、Zn、Pb显著升高；传统猪场土壤中的Cu、Zn、Cr较发酵床养殖方式累积更明显，主要集中在20 cm以下的土壤中，分别达22.77、41.83、5.50 mg·kg-1；与传统养殖方式相比，发酵床养殖对周边土壤重金属污染较小。 |
| 英文摘要: |
| Pig raising has caused heavy metal contamination in soil. A study was performed to determine the effects of bio-bed pig raising on heavy metal contents in bio-bed materials at different stages, in soil under the bio-bed, and in soil out of bio-bed, using soil from the traditional pig raising in the same location as reference. After 5 months of pig raising, accumulation of heavy metals in bio-bed layer（0~40 cm）was obvious. The increments of Cu, Zn, Cr and Pb contents were 41.23, 51.73, 13.52 mg·kg-1 and 5.23 mg·kg-1, respectively. Soil Cr content was found to increase by 14.30 mg·kg-1 even in 40~80 cm underneath the bio-bed. The accumulation of Cu, Zn and Cr in the soil of traditional pig raising was 22.77, 41.83 mg·kg-1 and 5.50 mg·kg-1, respectively, higher than that in the soil out of the bio-bed. The data in this study indicate that bio-bed pig raising may have lower risk of heavy metal pollution to the surrounding soils than traditional one. |
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