Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China

Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China

The planting of trees on mine wastelands is an effective, long-term technique for phytoremediation of heavy metal-contaminated wastes. In this study, a pot experiment with seedlings of Koelreuteria paniculata under six treatments of local mine wastes was designed to determine the major constraints o...

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Main Authors: Zhihong Huang, Wenhua Xiang, Yu'e Ma, Pifeng Lei, Dalun Tian, Xiangwen Deng, Wende Yan, Xi Fang
Format: Article
Language:English
Published: MDPI AG 2015-02-01
Series:International Journal of Environmental Research and Public Health
Subjects:
Koelreuteria paniculata
lateral fine root development
seedling biomass
phytoremediation
manganese mine wastes
Online Access:http://www.mdpi.com/1660-4601/12/2/1726
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spelling doaj-41eeb0becb55494284915c1a065e451e2020-11-24T23:49:36ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012015-02-011221726174410.3390/ijerph120201726ijerph120201726Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, ChinaZhihong Huang0Wenhua Xiang1Yu'e Ma2Pifeng Lei3Dalun Tian4Xiangwen Deng5Wende Yan6Xi Fang7National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaFaculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaThe planting of trees on mine wastelands is an effective, long-term technique for phytoremediation of heavy metal-contaminated wastes. In this study, a pot experiment with seedlings of Koelreuteria paniculata under six treatments of local mine wastes was designed to determine the major constraints on tree establishment and to evaluate the feasibility of planting K. paniculata on manganese mine wastelands. Results showed that K. paniculata grew well in mine tailings, and also under a regime of equal amounts of mine tailings and soil provided in adjacent halves of pots. In contrast, mine sludge did not favor survival and growth because its clay texture limited fine root development. The bio-concentration factor and the translocation factor were mostly less than 1, indicating a low phytoextraction potential for K. paniculata. K. paniculata is suited to restore manganese mine sludge by mixing the mine sludge with local mine tailings or soil.http://www.mdpi.com/1660-4601/12/2/1726Koelreuteria paniculatalateral fine root developmentseedling biomassphytoremediationmanganese mine wastes
collection DOAJ
language English
format Article
sources DOAJ
author Zhihong Huang
Wenhua Xiang
Yu'e Ma
Pifeng Lei
Dalun Tian
Xiangwen Deng
Wende Yan
Xi Fang
spellingShingle Zhihong Huang
Wenhua Xiang
Yu'e Ma
Pifeng Lei
Dalun Tian
Xiangwen Deng
Wende Yan
Xi Fang
Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
International Journal of Environmental Research and Public Health
Koelreuteria paniculata
lateral fine root development
seedling biomass
phytoremediation
manganese mine wastes
author_facet Zhihong Huang
Wenhua Xiang
Yu'e Ma
Pifeng Lei
Dalun Tian
Xiangwen Deng
Wende Yan
Xi Fang
author_sort Zhihong Huang
title Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
title_short Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
title_full Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
title_fullStr Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
title_full_unstemmed Growth and Heavy Metal Accumulation of Koelreuteria Paniculata Seedlings and Their Potential for Restoring Manganese Mine Wastelands in Hunan, China
title_sort growth and heavy metal accumulation of koelreuteria paniculata seedlings and their potential for restoring manganese mine wastelands in hunan, china
publisher MDPI AG
series International Journal of Environmental Research and Public Health
issn 1660-4601
publishDate 2015-02-01
description The planting of trees on mine wastelands is an effective, long-term technique for phytoremediation of heavy metal-contaminated wastes. In this study, a pot experiment with seedlings of Koelreuteria paniculata under six treatments of local mine wastes was designed to determine the major constraints on tree establishment and to evaluate the feasibility of planting K. paniculata on manganese mine wastelands. Results showed that K. paniculata grew well in mine tailings, and also under a regime of equal amounts of mine tailings and soil provided in adjacent halves of pots. In contrast, mine sludge did not favor survival and growth because its clay texture limited fine root development. The bio-concentration factor and the translocation factor were mostly less than 1, indicating a low phytoextraction potential for K. paniculata. K. paniculata is suited to restore manganese mine sludge by mixing the mine sludge with local mine tailings or soil.
topic Koelreuteria paniculata
lateral fine root development
seedling biomass
phytoremediation
manganese mine wastes
url http://www.mdpi.com/1660-4601/12/2/1726
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