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《Journal of Guangxi Normal University(Natural Science Edition)》 2018-04
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Tolerance Evaluation and Physiological Responses of the Clonal Plant Alchornea trewioides in Karst Rocky Mountains

ZHANG Yajun;MA Jiangming;SU Jing;QIN Jiashuang;MO Yanhua;Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection,Ministry of Education;University Key Laboratory of Karst Ecology and Environmental Change of Guangxi Province(Guangxi Normal University);  
Compared with the undisturbed treatment,the effects of human disturbance(burning disturbance and cutting disturbance)on the physiological indices of the clonal plant Alchornea trewioides naturally growing in karst rocky mountains were investigated.Measurements included contents of chlorophyll,malonaldehyde(MDA)and osmoregulation substance in the plant leaves.The results indicated that among the three disturbance treatments,the highest chlorophyll content was found in the cutting disturbance treatment,the cell membrane has a relatively high degree of damage in the undisturbed treatment,and the best osmoregulation ability was found in the burning disturbancetreatment.According to a comprehensive evaluation based on subordinate function of fuzzy mathematics,A.trewioides with burning disturbance had the best tolerance among the three disturbances,with a lower tolerance in cutting disturbance,and the lowest tolerance in undisturbed,so intermediate disturbance was beneficial to the propagation of A.trewioides.
【Fund】: 珍稀濒危动植物生态与环境保护教育部重点实验室主任基金(ERESEP2018Z04);; 国家自然科学基金(31660197)
【CateGory Index】: Q945
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