黑土地保护中不容忽视的一个问题:地膜残留及其污染

"黑土地保护"作为一项国家战略,已经写进我国"十四五"规划和"2035年远景目标纲要",中国科学院与东北三省政府签署了"黑土粮仓"科技会战框架协议,全力开展"黑土地保护"科技会战.当前"黑土地保护"科技攻关主要关注提升土壤有机质、降低土壤侵蚀、减少化肥和农药面源污染、推广保护性耕作等热点问题,而黑土地地膜残留与污染已经...

An Overlooked Issue in Black Soil Protection:Plastic Film Accumulation and Pollution

“Black Soil Protection”, as a national strategy, was listed into China's the 14th Five-Year Plan and the Long-Range Objectives through 2035. Chinese Academy of Sciences signed a framework agreement of "Black Soil Granary" with the governments of Liaoning, Jilin and Heilongjiang provinces in Northeast China, to fight for black soil protection. At present, “Black Soil Protection” mainly focuses on soil organic matter, soil erosion, non-point source pollution, and conservation tillage. However, plastic film accumulation and pollution is becoming increasingly serious in black soils, which needs to be highly concerned. This paper summarized the current situation of plastic film application and pollution in Northeast China, influencing factors of plastic film pollution, effects of plastic film residues on agriculture in black soils. The future research directions for plastic film accumulation and pollution are: 1) to estimate the amount and distribution of plastic film residue accumulation in Northeast China; 2) to explicit the negative effect of plastic film residue on crop and vegetable safety; 3) to evaluate the effects of long-term plastic film application on soil heath. Current national "Black Soil Protection" should not overlook plastic film accumulation and pollution.