Phytoremediation of Cadmium Pollution and Enzyme Activity in Soil

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Phytoremediation of Cadmium Pollution and Enzyme Activity in Soil

Journal Article•

Phytoremediation of Cadmium Pollution and Enzyme Activity in Soil

01 Jan 2002-Journal of Hunan University-

TL;DR: In this paper, the effect of phytoremediation on enzyme activity in soil over time by pot-planting method was studied. And the results showed that plants have capacity of absorption, concentration and remediation on cadmium pollution in soil, but the capacity varies with different plant species.

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Abstract: The absorption, concentration and phytoremediation of cadmium in soil, relationship between concentration of cadmium and enzyme activity in soil, and the effect of phytoremediation on enzyme activity in soil over time by pot-planting method were studied. Our results show that ①plants have capacity of absorption, concentration and remediation on cadmium pollution in soil, but the capacity varies with different plant species; ②urease activity in soil decreases with the increase of cadmium concentration in soil;③urease activity in soil is found to be closely correlative with concentration of cadmium in soil by regression analysis so that the urease activity can be used to indicate the degree of cadmium pollution in soil; ④the urease activity in soil polluted by cadmium is recovered by phytoremediation,and the degree of phytoremediation can be judged according to the degree of recovery of the urease activity in the soil.

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Journal Article•DOI•

Effects of multiple heavy metal contamination and repeated phytoextraction by Sedum plumbizincicola on soil microbial properties.

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Jinping Jiang¹, Longhua Wu¹, Na Li¹, Yongming Luo¹, Ling Liu¹, Qiguo Zhao¹, Lei Zhang¹, Peter Christie - Show less +4 more•Institutions (1)

Chinese Academy of Sciences¹

01 Jan 2010-European Journal of Soil Biology

TL;DR: Investigation of the influence of repeated phytoextraction over a two-year period by successive crops of the Zn and Cd hyperaccumulator Sedum plumbizincicola on multiple metal contaminated soils found it had beneficial effects on soil microbial and hydrolase activities, with the metal phytoremediation procedure restoring soil quality.

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124 citations

Cites background from "Phytoremediation of Cadmium Polluti..."

...Several studies have been carried out on soil quality changes in heavy metal polluted soils after repeated phytoextraction [14,20,30], but experimentally contaminated soils have usually been used and this leads to difficulties interpreting the results because of differences from field soils subjected to long-termmetal stress....
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...[30] reported that urease activity recovered in Cd-contaminated soil by phytoremediation....
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Journal Article•DOI•

Accumulation and Remediation of Cadmium-polluted Soil by a Potential Cadmium-hyperaccumulator Chlorophytum comosum

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Y. B. Wang¹, A. Yan¹, T. Wu¹, X. Zhang¹•Institutions (1)

Anhui Normal University¹

21 Jun 2012-Energy Sources Part A-recovery Utilization and Environmental Effects

TL;DR: Chlorophytum comosum was used to remediate the artificially polluted soil in a pot experiment under greenhouse conditions as discussed by the authors, and the results showed that the activity of soil enzyme increased significantly in soil planted with C.comosum compared to soil not planted with c. comosuma, while the concentration of cadmium in the soil reduced.

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Abstract: Chlorophytum comosum was used to remediate the artificially polluted soil in a pot experiment under greenhouse conditions. The results showed that the activity of soil enzyme increased significantly in soil planted with C. comosum compared to soil not planted with C. comosum, while the concentration of cadmium in the soil reduced. The accumulation at 10 mg kg−1 cadmium was above 100 mg kg−1, and up to 1,522 and 856 mg kg−1 in the root and the aboveground part at 200 mg kg−1 cadmium concentration. In conclusion, C. comosum is a potential Cd-hyperaccumulator and of great value in remediation cadmium-contaminated soils.

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7 citations

Cites background from "Phytoremediation of Cadmium Polluti..."

...Comparing the reduction amplitude of Cd of Rosa chinensis, Sabina procumbens, Asparagus cochinchinensis and seven other ornamental plants (Liu et al., 2002), it was 6.378 mg kg 1 for Rosa chinensis, while the values for Sabina procumbens and Asparagus cochinchinensis was only 1.063 mg kg 1....
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...In China, the proportion of soil pollution by Cd has been 13,000 hm2 and 11 agricultural areas have been reported to produce “cadmium rice” due to sewage irrigation (Liu et al., 2002; He et al., 2009)....
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...In China, the proportion of soil pollution by Cd has been 13,000 hm(2) and 11 agricultural areas have been reported to produce “cadmium rice” due to sewage irrigation (Liu et al., 2002; He et al., 2009)....
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...Comparing the reduction amplitude of Cd of Rosa chinensis, Sabina procumbens, Asparagus cochinchinensis and seven other ornamental plants (Liu et al., 2002), it was 6....
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Proceedings Article•DOI•

Notice of Retraction Urease activity changes of sewage river sediment by different phytoremediation methods

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Qing Wu¹, Caiyun Zhao¹, Yue Zhang¹, Yanan Li¹, Huazhi Li¹ - Show less +1 more•Institutions (1)

Tianjin University¹

17 Jul 2010

TL;DR: In this paper, a pot experiment was conducted to study phytoremediation efficiency of maize, ryegrass, Indian mustard and Medico go sativa L for heavy metal-organic contaminated sewage river sediment.

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Abstract: Pot experiment was conducted to study phytoremediation efficiency of maize, ryegrass, Indian mustard and Medico go sativa L for heavy metal-organic contaminated sewage river sediment. Three different treatment levels were designed, and urease activity change in sediment was inspected. Results showed that the method of EDTA-induced phytoremediation can promote the absorption of heavy metal by plant and restoring urease activity evidently. The phytoremediation method of plant-mycorrhizal fungi-native bacteria can alleviate the hazards of heavy metals pollutants on plants, and improve the ability of plants to resist adverse environment. Soil unease activity of four kinds of heavy metal enrichment plants is Ryegrass>maize>Indian mustard>Medico go sativa L. Low temperature influenced urease activity greatly.

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3 citations