| 可控光降解聚乙烯薄膜的微生物降解 |
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| 引用本文： | 李凤珍,郑鸿元,刘增柱,张淑贤,卢耀波,刘瑞君.可控光降解聚乙烯薄膜的微生物降解[J].环境科学,1990,11(1):6-11. |
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| 作者姓名： | 李凤珍 郑鸿元 刘增柱 张淑贤 卢耀波 刘瑞君 |
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| 作者单位： | 中国科学院沈阳应用生态研究所
(李凤珍，郑鸿元，刘增柱，张淑贤，卢耀波)，中国科学院沈阳应用生态研究所(刘瑞君) |
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| 摘 要： | 本文通过微生物接种试验及土壤埋膜试验,证明高分子量的聚乙烯薄膜抗微生物降解;聚乙烯光解膜经光降解后,分子量低于4000～4500时,残膜碎片能被土壤微生物降解,不同土壤具有不同降解能力,聚乙烯薄膜的光降解残膜不抑制土壤氧化代谢能力和土壤酶活性。
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| 关 键 词： | 聚乙烯薄膜 光降解 微生物降解 |
| 收稿时间： | 1988/12/12 0:00:00 |
Microbial Degradation of Polyethylene Farming-mulch-film after Its Photodegradation |
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| Li Fengzhen.Microbial Degradation of Polyethylene Farming-mulch-film after Its Photodegradation[J].Chinese Journal of Environmental Science,1990,11(1):6-11. |
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| Authors: | Li Fengzhen |
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| Institution: | Institute of Applied Ecology, Academia Sinica, Shenyang;Institute of Applied Ecology, Academia Sinica, Shenyang;Institute of Applied Ecology, Academia Sinica, Shenyang;Institute of Applied Ecology, Academia Sinica, Shenyang;Institute of Applied Ecology, Academia Sinica, Shenyang;Institute of Applied Ecology, Academia Sinica, Shenyang |
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| Abstract: | This paper reports the conditions of degradable polyethylene farming-mulch-film by microorganism inoculation tests and soil-buried tests. The results obtained are as follows: 1. It is very difficult for polyethylene film of high molecular weight to be microbial degradation; 2. When the film molecular weight caused by photodeg-radation is below 4500-5000, the film fragments are susceptible to micribial attack by microorganisms commonly found in soil, and different microorganism has different degradability; 3. It is also demonstrated that photodegra-ded raoled fragments of polyethylene film with not inhibit soils oxidation metabolism and soil enxymatic activities. |
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