[1]XING Rongrong,WU Yonggui,LUO Youfa,et al.Effect of Pioneer Phytoremediation on Indigenous Zinc Smelting Slag Matrix Nutrients and Microbial Properties[J].Research of Soil and Water Conservation,2018,25(05):103-111.
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Effect of Pioneer Phytoremediation on Indigenous Zinc Smelting Slag Matrix Nutrients and Microbial Properties
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 05
Page number:
103-111
Column:
Public date:
2018-09-06
- Title:
- Effect of Pioneer Phytoremediation on Indigenous Zinc Smelting Slag Matrix Nutrients and Microbial Properties
- CLC:
- S154.3;X171.5
- DOI:
- -
- Abstract:
- In order to comprehensively evaluate the effect of ecological restoration of pioneer restoration plant on indigenous zinc smelting slag matrix, in northwest Guizhou. Through field sampling and laboratory analysis, the improvement effect of modified natural colonized plants (Chenopodium ambrosioides, Buddlejia davidii) and pioneer restoration plants (Trifolium repens, Perennial ryegrass) on residue matrix nutrient, enzyme activity and microbial activity was examined. The results showed that four pioneer restoration plants presented an obvious rhizosphere effect compared with the exposed slag without vegetation restoration, performance of rhizosphere slag decreased pH, and significantly increased (p < 0.05) residue matrix nutrients (N, P, K),organic matter, enzyme activities (urease, invertase, phosphatase, catalase), microorganism (bacteria, fungi, actinomycetes, microbial biomass, respiration intensity) of rhizosphere. Correlation analysis showed that residue matrix nutrients, enzyme activities and microbial activity of the four plants rhizosphere were positively correlated in general, the residue matrix available N was significantly correlated with residue matrix invertase and phosphatase, total nitrogen was significantly correlated with bacteria (p < 0.01). Available K had significant correlations with actinomycetes, microbial biomass and fungi, fungi had significant correlations with urease and invertase, microbial biomass was significant correlated with urease, invertase, phosphatase and catalase (p < 0.05). The results of principal component analysis showed that, the fertility of zinc smelting slag matrix repaired by Trifolium repens was the highest, the control was lowest. Obviously, Trifolium repens as to the repair effect of pioneer plant wastes residue matrix was the best in the four pioneer restoration plants. Therefore, in the process of ecological restoration of indigenous zinc smelting slag yard, using Trifolium repens as the characteristics of planting pioneer plants could significantly improve the zinc slag, provides favorable conditions for the rapid introduction of other plants in the waste residue yard.
- References:
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1900-01-01