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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (23): 166-170.doi: 10.11924/j.issn.1000-6850.2014-1021

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

氧化-生物双降解地膜降解性能及增温、保墒效果研究

袁海涛 王丽红 董灵艳 周经纶 张东楼 王 寒   

  • 收稿日期:2014-04-09 修回日期:2014-05-15 出版日期:2014-08-15 发布日期:2014-08-15
  • 基金资助:
    国家863计划课题子课题“高产多抗常规棉新品种培育及材料创新”(2012AA101108-02-14)；农业部黄淮海流域棉区农业科学观测实验站项目。

Degradation Performance and the Effects on Warming and Moisture ConservationOxo-biodegradable Mulching Film

  • Received:2014-04-09 Revised:2014-05-15 Online:2014-08-15 Published:2014-08-15

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摘要： 为了降低普通地膜对土壤环境和作物生长发育造成的损害，使用氧化-生物双降解地膜进行田间覆盖试验，研究了几种氧化-生物双降解地膜的降解效果和增温、保墒性能。结果表明：各降解膜的降解速度和降解程度均不同，顺序为：A＞B1＞B2＞C＞CK。A降解最快，失重率最高，达73.71%，暴露部分降解完全；地膜降解前，在提高地温方面均与普通地膜相同，崩解期后保温作用下降甚至消失；由于试验期间高温、多雨，地膜保墒作用不明确。说明氧化-生物双降解地膜降解的彻底性和降解时间的可控性，为今后应用于作物生产提供参考。

关键词: 生物质炭, 生物质炭, 铅, BCR, 水稻土, 修复

Abstract: In order to reduce the damage of common plastic mulching film on soil and crop, field comparison tests were carried by covered with different oxo-biodegradable mulching films and their degradation effects, and the heat and moisture preservation were studied. The results showed that: the degradation rate and degree of the double degradable film were different and the order was A＞B1＞B2＞C＞CK. Degradation rate of A was the fastest and its degradation degree was the highest, up to 73.71% , the exposed part was completely degraded; degradable films could improve the same soil temperature as common plastic film before degradation and their effect of the heat preservation decreased even disappeared after disintegration period. Effect of moisture preservation of plastic film was not clear because of high temperature and rainy weather during the test. This experiment indicated the controllability and the thoroughness of the oxo- biodegradable mulching film which would make a good foundation for crop production in the future.