当前位置: 首页 > 文章 > 发酵床养猪对土壤重金属含量的影响 农业环境科学学报 2014,33 (03) 118-123
Position: Home > Articles > Effect of Bio-bed Pig Raising on Heavy Metal Contents in Soil Journal of Agro-Environment Science 2014,33 (03) 118-123

发酵床养猪对土壤重金属含量的影响

作  者:
李买军;马晗;郭海宁;王小治;封克
单  位:
扬州大学环境科学与工程学院;扬州大学水利科学与工程学院;江苏省农业科学院畜牧研究所
关键词:
猪发酵床;垫料;土壤;传统养殖;重金属
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。
译  名:
Effect of Bio-bed Pig Raising on Heavy Metal Contents in Soil
作  者:
LI Mai-jun;MA Han;GUO Hai-ning;WANG Xiao-zhi;FENG Ke;GU Hong-ru;College of Environmental Science and Engineering, Yangzhou University;Institute of Animal Science, Jiangsu Academy of Agricultural Sciences;
关键词:
bio-bed pig raising;;bio-bed material;;soil;;traditional pig raising;;heavy metal
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-1and 5.23 mg·kg-1, respectively. Soil Cr content was found to increase by 14.30 mg·kg-1even 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-1and 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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