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The effect of Eulaliopsis binata on the physi-chemical properties, microbial biomass, and enzymatic activities in Cd-Pb polluted soil

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Hui Yu
Hui Yu
Hui Yu
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Yanci Xiang
Yanci Xiang
Yanci Xiang
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Dongsheng Zou
Dongsheng Zou
Dongsheng Zou
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Abstract

Pot culture experiment using mining wasteland soil was carried out to study the effect of Eulaliopsis binata on the heavy-metal polluted soil with the growth of 90, 180, 270, and 360 days. Soil nutritional components, heavy metal, microbial biomass, and enzymatic activities were analyzed in this study, and the control group had no plants. The results showed that heavy metal contents decreased with E. binata growth, extractable Cd and Pb decreased 28 and 15 % after 1 year, but the difference was not significant compared with the control. While soil nutritional components, microbial biomass and enzymatic activities increased significantly as compared with the control. Comparing with pre-experiment, soil organic matter, N, P, K, microbial biomass C, N, P, invertase, urease, acid phosphatase, and catalase increased 0.9, 1.1, 3.0, 1.1, 0.4, 0.3, and 0.5 times, respectively. The indexes of soil nutritional components, microbial biomass, and enzymatic activities are positively correlated to each other, while they are negatively correlated to heavy metal content respectively. E. binata has positive influence on Cd-Pb pollution soil and broad application prospects in remediating heavy-metal polluted soil.
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RESEARCH ARTICLE
The effect of Eulaliopsis binata on the physi-chemical properties,
microbial biomass, and enzymatic activities in Cd-Pb polluted soil
Hui Yu
1,2
&Yanci Xiang
1
&Dongsheng Zou
2
Received: 14 February 2016 /Accepted: 24 May 2016 /Published online: 29 June 2016
#Springer-Verlag Berlin Heidelberg 2016
Abstract Pot culture experiment using mining wasteland soil
was carried out to study the effect of Eulaliopsis binata on the
heavy-metal polluted soil with the growth of 90, 180, 270, and
360 days. Soil nutritional components, heavy metal, microbial
biomass, and enzymatic activities were analyzed in this study,
and the control group had no plants. The results showed that
heavy metal contents decreased with E. binata growth, ex-
tractable Cd and Pb decreased 28 and 15 % after 1 year, but
the difference was not significant compared with the control.
While soil nutritional components, microbial biomass and en-
zymatic activities increased significantly as compared with the
control. Comparing with pre-experiment, soil organic matter,
N, P, K, microbial biomass C, N, P, invertase, urease, acid
phosphatase, and catalase increased 0.9, 1.1, 3.0, 1.1, 0.4,
0.3, and 0.5 times, respectively. The indexes of soil nutritional
components, microbial biomass, and enzymatic activities are
positively correlated to each other, while they are negatively
correlated to heavy metal content respectively. E. binata has
positive influence on Cd-Pb pollution soil and broad applica-
tion prospects in remediating heavy-metal polluted soil.
Keywords Eulaliopsis binata .Heavy metal .Soil .
Remediation
Introduction
With the development of modern industry in China, heavy
metal pollution in soil has become more serious (Wei and
Yang 2010). According to “Soil Pollution Survey
Communique”(http://www.zhb.gov.cn/gkml/hbb/qt/201404/
t20140417_270670.htm), released by China Ministry of
Environmental Protection in April 2014, the overall soil
heavy metals exceeded the standard by 16.1 %, with the
contamination rate of arable land at 19.4 %. To solve the
problem of heavy metal pollution in soil, a lot of researches,
in both China and other countries, have been carried out to
develop techniques for soil remediation. Among the many
restoration techniques, phytoremediation is the most cost-
effective, efficient, and environmental-friendly. Since
Chaney proposed the hyperaccumulator in 1983, the
phytoremediation of heavy metal-contaminated soil has
attracted a lot of attentions (Purakayastha and Chhonkar
2010). However, most hyperaccumulator plants are small
and slow-growing, so it is difficult to achieve remediation goal
within the short period of time (Yadavet al. 2010). In addition,
due to the shortage of land resources in China, large popula-
tion, and the stressful situation of agricultural production, it is
impractical to fallow agricultural soils for remediation.
Therefore, to select a regular plant with economic value is a
better solution for the phytoremediation of contaminated soil
in China.
Eulaliopsis binata, belonging to Eulaliopsis Honda,
Gramineae, is a perennial herb and mainly grows in China,
India, and Southeast Asia. It has a massive root system with
broad covering, making it possible to firm the soil and store
water. Its fibers are superior raw materials for high-grade pa-
per, rayon, artificial silk, and a variety of hand-woven prod-
ucts. In recent years, scholars have found that E. binata had
strong resistance to heavy metal pollution (Tie et al. 2005;Liu
Responsible editor: Zhihong Xu
*Dongsheng Zou
zoudongsheng2@sina.com
1
Key Laboratory of Ecological Remediation and Safe Utilization of
Heavy Metal-Polluted Soils, Hunan University of Science and
Technology, Xiangtan 411201, China
2
College of Agronomy, Hunan Agricultural University,
Changsha 410128, China
Environ Sci Pollut Res (2016) 23:19212–19218
DOI 10.1007/s11356-016-6967-8
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