选用巴斯夫、金发和鑫富3种不同生物降解地膜进行埋设试验，以探讨生物降解膜降解产物对土壤质量的影响。结果表明，埋设233 d后，巴斯夫膜降解速度最快，3种膜的降解产物均未引起土壤养分含量降低、生物活性下降和重金属污染，参与不同生物降解膜降解的微生物种类不同。在观测期内，3种降解膜均未对土壤质量造成负面影响。

In this paper， 3 kinds of different biodegradable film of BASF， Kingfa and Xinfu were used in embedding experiments to investigate the effect of degradation products of biodegradable films on soil quality. The results showed that after 233 days of embedment， degradation of BASF film was the fastest， the degradation products of all three kinds of films did not decrease the soil nutrient content or soil bioactivity nor cause the heavy metal accumulated， and the functional microorganisms were different in involving the degradation of different biodegradable films. The three kinds of degradation films selected did not have negative effects on soil quality during the observation period.

TQ323.8

国家重点研发计划项目(2016YFB0302402)；国家现代玉米产业技术体系(CARS-02-66)；国家科技支撑计划项目(2015BAD22B02-02)；公益性行业(农业)科研专项(201503124)；甘肃省农业生物技术研究与应用开发项目(GNSW-2016-14)。