Arid
DOI10.1007/s11356-015-4875-y
Restoration of rare earth mine areas: organic amendments and phytoremediation
Zhou, Lingyan; Li, Zhaolong; Liu, Wen; Liu, Shenghong; Zhang, Limin; Zhong, Liyan; Luo, Ximei; Liang, Hong
通讯作者Liang, Hong
来源期刊ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
EISSN1614-7499
出版年2015
卷号22期号:21页码:17151-17160
英文摘要

Overexploitation of rare earth mine has caused serious desertification and various environmental issues, and ecological restoration of a mining area is an important concern in China. In this study, experiments involving dry grass landfilling, chicken manure broadcasting, and plant cultivation were carried out to reclaim a rare earth mine area located in Heping County, Guangdong Province, China. The prime focus was to improve soil quality in terms of nutrients, microbial community, enzyme activity, and physicochemical properties so as to reclaim the land. After 2 years of restoration, an increase of organic matter (OM), available potassium (K), available phosphorus (P) levels, and acid phosphatase (ACP) activity and a reduction of the available nitrogen (N) level and urease (URE) activity in soil were achieved compared to the original mined land. The nutrients and enzyme activities in soil with 5 years of restoration were close to or surpass those in the unexploited land as control. The bulk density, total porosity, water holding capacity, pH, and electrical conductivity (EC) of soil were improved, and the number of cultivable microorganisms and the bacterial diversity in soil were greatly increased with time during ecological restoration, especially for surface soil. Furthermore, the artificial vegetation stably grew at the restored mining sites. The results indicated that organic amendments and phytoremediation could ecologically restore the rare earth mining sites and the mined land could finally be planted as farmland.


英文关键词Rare earth mine Phytoremediation Physicochemical properties Microbial community Ecological restoration
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000363964700083
WOS关键词MICROBIAL COMMUNITY STRUCTURE ; METAL ACCUMULATION ; NATIVE PLANTS ; ARID ENVIRONMENTS ; ENZYME-ACTIVITIES ; TRACE-ELEMENT ; MINING AREA ; SOUTH CHINA ; TAILINGS ; SOIL
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187165
作者单位Zhongkai Univ Agr & Engn, Coll Life Sci, Guangzhou 510225, Guangdong, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Lingyan,Li, Zhaolong,Liu, Wen,et al. Restoration of rare earth mine areas: organic amendments and phytoremediation[J],2015,22(21):17151-17160.
APA Zhou, Lingyan.,Li, Zhaolong.,Liu, Wen.,Liu, Shenghong.,Zhang, Limin.,...&Liang, Hong.(2015).Restoration of rare earth mine areas: organic amendments and phytoremediation.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,22(21),17151-17160.
MLA Zhou, Lingyan,et al."Restoration of rare earth mine areas: organic amendments and phytoremediation".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 22.21(2015):17151-17160.
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