应用生态学报 ›› 1996, Vol. 7 ›› Issue (4): 429-434.
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何耀武, 孙铁珩, 区自清
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国家自然科学基金;中国科学院陆地生态系统痕量物质生态过程开放试验室基金资助项目
He Yaowu, Sun Tieheng, Ou Ziqing
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摘要: 在好氧和厌氧两种条件下研究了1,2,4-三氯苯的降解,结果表明,1,2,4-三氯苯的好氧降解和厌氧降解均遵循一级反应动力学在同样水分、温度及初始浓度条件下,1,2,4-三氯苯的好氧降解比厌氧降解迅速,其半衰期分别为1.89~5.86和5.07~19.08d土壤中1,2,4-三氯苯的初始浓度对于其降解也有显着影响,在0~100μg·g-1的范围内,浓度增高时,其降解加快,说明污染物浓度对降解的影响;在10~30℃范围内,温度增高导致降解过程加快,归因于温度升高对微生物酶活性的激活作用.
关键词: 1, 2, 4-三氯苯, 氯苯, 降解, 半衰期, 冠层反射率, 敏感性分析, 亚热带森林, PROSPECT5模型, 4SAIL模型
Abstract: Degradation of 1,2,4-TCB in soil was studied under both aerobic and anaerobic conditions. The results show that both aerobic and anaelxibic degradation of 1,2,4-TCB obeys the first order dynamics. Under same water content, temperature and initial concentration, the aerobic degradation is rapider than anaerobic one with half-lives of 1.89~5.86 and 5.07~19.08 days respectively. Initial concentration of 1,2,4-TCB significantly affected the degradation rate, with initial concentration ranging from 0 to 100μg·g-1,higher concentration promotes the degradation. Higher temperature within the range of 10~30℃ accelerates the degradation due to the activation of microbial enzyme at high temperature.
Key words: 1,2,4-trichlorobenzene, Chlorobenzenes, Degradation, Half-life, subtropical forest, canopy reflectance, 4SAIL model, sensitivity analysis, PROSPECT5 model
何耀武, 孙铁珩, 区自清. 1,2,4-三氯苯在土壤中的降解[J]. 应用生态学报, 1996, 7(4): 429-434.
He Yaowu, Sun Tieheng, Ou Ziqing. Degradation of 1,2,4-trichlorobenzene (1,2,4-TCB) in soil[J]. Chinese Journal of Applied Ecology, 1996, 7(4): 429-434.
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https://www.cjae.net/CN/Y1996/V7/I4/429