Potential of four forage grasses in remediation of Cd and Zn contaminated soils
Potential of four forage grasses in remediation of Cd and Zn contaminated soils
复制标题
四种饲草修复镉和锌污染土壤的潜力
DOI：
10.1016/j.biortech.2009.11.065
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发表时间：
2010-03-01
影响因子：
11.4
通讯作者：
Gao, Bo
中科院分区：
文献类型：
--
作者：
Zhang, Xingfeng;Xia, Hanping;Gao, Bo
采用温室盆栽试验研究了4种牧草对土壤Cd、Zn污染的修复能力。高浓度Cd污染显著增加了美洲狼尾草（Pennisetumamericanum（L.）Leeke × Pennisetum purpureum Schumach对串叶松香草没有影响，但显著降低了黑穗雀稗的生物量。热研11号和柱花草Stylosanthes guianensis cv.雷安二世高锌污染显著降低了所有牧草的生物量。地上部Cd提取量为624、179。21和15 μ g/株; guianensis和S.在土壤Cd浓度为8 mg/kg时，在土壤锌浓度为600 mg/kg时，美洲狼尾草的地上部锌提取量为8189 μ g/株，而其它3种牧草均表现为严重中毒。P. americanum x P. purpureum和P. atratum可用于Cd和Zn污染的植物提取; Perfoliatum可以作为Cd污染植物稳定化的候选物种;圭亚那没有补救能力。皇冠版权所有（C）2009由爱思唯尔有限公司出版。保留所有权利。
A pot experiment was conducted in a greenhouse to evaluate the phytoremediation abilities of four forage grasses with respect to soil Cd and Zn Pollution. High Cd pollution significantly increased the biomass of Pennisetum americanum (L.) Leeke x Pennisetum purpureum Schumach, showed no effect on Silphium perfoliatum Linn and significantly decreased biomass of Paspalum atratum cv. Reyan No. 11 and Stylosanthes guianensis cv. Reyan II. High Zn pollution significantly decreased biomass of all grasses. Shoot Cd extraction amounts were 624, 179. 21 and 15 mu g/plant for P. americanum x P. purpureum, P. atratum, S. guianensis and S. perfoliatum respectively at soil Cd concentration of 8 mg/kg. The shoot Zn extraction amount for P. americanum x A purpureum was 8189 mu g/plant while the other three grasses were severely intoxicated at the soil Zn concentration of 600 mg/kg. P. americanum x P. purpureum and P. atratum could be useful for phytoextraction of either or both Cd and Zn pollution; S. perfoliatum could be regarded as a candidate species for phytostabilization of Cd contamination: while S. guianensis had no remediation capability. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.