Tree species and recovery time drives soil restoration after mining: A chronosequence study
Kim, Songho1,2; Zang, Huadong3; Mortimer, Peter1,4; Shi, Lingling1,3,4; Li, Yunju5; Xu, Jianchu1,4; Ostermann, Anne1,4
2018-06-01
Source PublicationLAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
Volume29Issue:6Pages:1738-1747
AbstractOpen-pit mining activities for metals and minerals have impacted vast areas of the Earth's surface and left behind highly disturbed and degraded landscapes. However, our understanding of tree species and recovery time on the restoration of biotic and abiotic soil properties remains incomplete. Topsoil (0-15cm) was collected from plantations of 4 tree species: alder, acacia, pine, and cypress. A chronosequence of restoration was selected to assess the effect of recovery time: vegetation-free postmining land (unrestored control), 5-10years (young plantation), and 20-25years (old plantation). The soil physicochemical characteristics and phospholipid fatty acids were analysed. After 20years of restoration, the soil organic carbon (SOC) concentration increased, on average, from 1.4% to 4.7% for alder, cypress, and acacia. However, SOC was similar under pine plantations in unrestored control and at the late stage of restoration. The restoration of soil total nitrogen was faster than the SOC pools for all tree species investigated. Compared with that in the unrestored control, the total microbial biomass increased by 74% after 20-25years of restoration. A similar increase was observed for bacterial biomass. The studied sites partly exhibited residues of trace elements that exceeded Chinese environmental quality standards (Cd, As, Cu, and Cr). However, only Cu affected the soil community; arbuscular mycorrhizal biomass decreased with an increase in Cu concentration. In conclusion, the recovery time, rather than the tree species, was the main determinant in the alteration of key soil physicochemical parameters in the restoration of phosphate-mining-degraded landscapes, at least during the first 20-25years.
KeywordHeavy Metals Restoration Age Soil Microbial Community Soil Restoration Trees
DOI10.1002/ldr.2951
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/61371
Collection中国科学院东亚植物多样性与生物地理学重点实验室
资源植物与生物技术所级重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Gottingen, Dept Agr Soil Sci, Busgenweg 2, D-37077 Gottingen, Germany
4.World Agroforestry Ctr, Kunming 650201, Yunnan, Peoples R China
5.Yunnan Phosphate Chem Grp Co Ltd, State Phosphorus Resource Dev & Utilizat Engn Tec, Kunming, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Kim, Songho,Zang, Huadong,Mortimer, Peter,et al. Tree species and recovery time drives soil restoration after mining: A chronosequence study[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(6):1738-1747.
APA Kim, Songho.,Zang, Huadong.,Mortimer, Peter.,Shi, Lingling.,Li, Yunju.,...&Ostermann, Anne.(2018).Tree species and recovery time drives soil restoration after mining: A chronosequence study.LAND DEGRADATION & DEVELOPMENT,29(6),1738-1747.
MLA Kim, Songho,et al."Tree species and recovery time drives soil restoration after mining: A chronosequence study".LAND DEGRADATION & DEVELOPMENT 29.6(2018):1738-1747.
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