Effect of fertilizer amendments on phytoremediation of Cd-contaminated soil by a newly discovered hyperaccumulator Solanum nigrum L.

被引：91
作者：
Wei, Shuhe [1 ]
Li, Yunmeng [1 ,2 ]
Zhou, Qixing [1 ]
Srivastava, Mrittunjai [3 ]
Chiu, Siuwai [4 ]
Zhan, Jie [5 ]
Wu, Zhijie [1 ]
Sun, Tieheng [1 ]
机构：
[1] Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] Univ Florida, N Florida Res & Educ Ctr, Quincy, FL 32351 USA
[4] Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China
[5] Liaoning Univ Tradit Chinese Med, Dept Biotechnol, Shenyang 110101, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 176卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
Cadmium; Fertilizer; Phytoextraction; Phytostability; Solanum nigrum; THLASPI-CAERULESCENS; ASSISTED PHYTOEXTRACTION; CHELATING-AGENTS; HEAVY-METALS; CADMIUM; MANURE; ZINC; EDTA; EDDS; AVAILABILITY;
D O I：
10.1016/j.jhazmat.2009.11.023
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Phytoremediation is a cost-effective, simple and sustainable beneficiary technique to purify the polluted environment. Solanum nigrum L, a newly found cadmium (Cd) hyperaccumulator, has shown the potential to remediate Cd-contaminated soils. Present study investigated the effects of fertilizer amendments on the Cd uptake by S. nigrum. Chicken manure and urea are usual agricultural fertilizers and more environmental friendly. The results showed that Cd concentrations in shoots of S. nigrum were significantly decreased (p < 0.05) by 28.2-34.6%, as compared to that of without the addition of chicken manure, but not the case for urea treatment. However, Cd extraction capacities (mu g pot(-1)) in shoot biomass of S. nigrum were significantly increased (p < 0.05) due to increased shoot biomass. In addition, available Cd concentration in soil significantly decreased due to addition of chicken manure. Thus, urea might be a better fertilizer for strengthening phytoextraction rate of S. nigrum to Cd, and chicken manure may be a better fertilizer for phytostabilization. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：269 / 273
页数：5
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