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You are here: Home » Past Issues » Volume 11, 2016 - Number 1 » REMEDIATION OF PETROLEUM CONTAMINATED SOIL USING LITTER FROM AFFORESTATION PLANT SPECIES IN NORTHERN SHAANXI, CHINA


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Xiaoxi ZHANG1†, Qi YU2†, Zengwen LIU3,4*, Nhu Trung LUC1,5, Xiaobo LIU2 & Xiao LIANG1
1Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China, e-mail: zhangxiaoxi712100@gmail.com
2College of Forestry, Northwest A&F University, Yangling 712100, China, e-mail: zizibujuan1989@sina.cn
3College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China, e-mail: zengwenliu2003@aliyun.com
4Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China Ministry of Agriculture, Yangling 712100, China, e-mail: zengwenliu2003@aliyun.com
5Department of Agriculture and Rural Development of Lao Cai, Lao Cai City 330100, Vietnam, e-mail:

REMEDIATION OF PETROLEUM CONTAMINATED SOIL USING LITTER FROM AFFORESTATION PLANT SPECIES IN NORTHERN SHAANXI, CHINA

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Abstract:

This study was undertaken to assess the feasibility of using plant litter resources for the remediation of petroleum-contaminated soil. Twenty-one types of litter from plants used for afforestation in Northern Shaanxi (a main petroleum producing area in China) were collected and mixed with petroleum-contaminated soil to conduct an incubation experiment over 120 days. The improvements of soil chemical and biological properties were detected and analyzed using integrated principal component analysis. Results indicated that litter from Platycladus orientalis and Trifolium repens resulted in the best integrated remediation effects on contaminated soil, followed by litter from Caragana korshinskii, Medicago sativa, Coronilla varia, Artemisia argyi, and Populus simonii. These types of litter could be used in the remediation of contaminated soil. In contrast, Larix principis-rupprechtii, Amorpha fruticosa, Pinus tabulaeformis, Hippophae rhamnoides, Quercus liaotungensis, Pyrus betulifolia, Zanthoxylum bungeanum and Robinia pseudoacacia litter resulted in serious deterioration effects, followed by Ulmus pumila, Armeniaca sibirica and Bothriochloa ischaemum litter. These types of litter should be avoided in the remediation of contaminated soil.


Keyword: Litter, petroleum, contaminated soil, remediation, biological and chemical properties


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