Water regulating effect on Jatropha curcas repair cadmium-contaminated soil
YANG Ying1, YANG Qiliang1*, WU Zhenzhong2, WANG Huanchang1
1.College of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 2.College of Resource and Environment, Lanzhou University, Lanzhou, Gansu 730050, China
Abstract The growth status of Jatropha curcas saplings at different irrigation treatments(W1:30%FC,W2:50%FC,W3:70%FC,W4:90%FC)and cadmium mass ratio(Cd0:0 mg/kg,Cd1:50 mg/kg,Cd2:100 mg/kg,Cd3:200 mg/kg), irrigation water use efficiency(WUE)and the characteristics of cadmium enrichment of Jatropha curcas were studied through the greenhouse pot experiment.The results show that cadmium content increases with the increase of cadmium mass ratio(P <0.01), while with the increase of cadmium mass ratio, soil cadmium transfer coefficient(TF), bioaccumulation coefficient(BF)and WUE decrease(P <0.05).The content of cadmium, TF and BF in Jatropha curcas increases first, then decreases with the increase of irrigation amount, and the ability of its organs to enrich cadmium in sequence from high to low is root,stem,leaf. Under the conditions of this study, the optimum combination of irrigation and cadmium mass ratio is beneficial to W3Cd1.
YANG Ying-,YANG Qi-Liang-*,WU Zhen-Zhong- et al. Water regulating effect on Jatropha curcas repair cadmium-contaminated soil[J]. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(8): 656-661.
AGBOGIDI O M, MARIERE A E, OHWO O A. Metal concentration in plant tissues of Jatropha curcas L grown in crude oil contaminated soil[J]. Journal of sustainable forestry, 2013, 32(4): 404-411.
BOLAN N, KUNHIKRISHNAN A, THANGARAJAN R, et al. Remediation of heavy metal(loid)s contaminated soils—to mobilize or immobilize[J]. Journal of hazar-dous materials, 2013, 266(4): 141-166.
GARBISU C, HERNÁNDEZALLICA J, BARRUTIA O, et al. Phytoremediation: a technology using green plants to remove contaminants from polluted areas[J]. Reviews on environmental health, 2002, 17(3):173-88.
YANG Q, LI F, ZHANG F, et al. Interactive effects of irrigation frequency and nitrogen addition on growth and water use of Jatropha curcas[J]. Biomass & bioenergy, 2013, 59(1):234-242.
TORDOFF G M, BAKER A J M, WILLIS A J. Current approaches to the revegetation and reclamation of metalliferous mine wastes[J]. Chemosphere, 2000, 41(1/2):219-228.
LIANG Jian, LIU Xiaowen, TANG Lin, et al. Biological characteristics of the edge cells of Jatropha curcas L. and effects of cadmium on its biological activity[J]. Chinese journal of ecology, 2011, 30(7): 1423-1428.(in Chinese)
WEI Shuhe, YANG Chuanjie, ZHOU Qixing et al. Characterization of heavy metals in seven common weed plants of the compositae, such as bidens pilosa, etc. [J]. Environmental science, 2008, 29(10): 2912-2918.(in Chinese)
MANGKOEDIHARDJO S. Jatropha curcas L. for phytoremediation of lead and cadmium polluted soil[J]. World applied sciences journal, 2008,4(4):519-522.
RANIERI A, CASTAGNA A, SCEBBA F, et al. Oxidative stress and phytochelatin characterisation in bread wheat exposed to cadmium excess[J]. Plant physiology & biochemistry, 2005, 43(43):45-54.
CHANG F C, KO C H, TSAI M J, et al. Phytoreme-diation of heavy metal contaminated soil by Jatropha curcas[J]. Ecotoxicology, 2014, 23(10):1969-1978.