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厚厚的聚乙烯薄膜减少了污染足迹,同时突出了环境价值和干旱地区的玉米产量

Xiao-Bin Xiong¹, Peng-Yang Wang¹, Ze-Ying Zhao¹

¹State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.

Journal of environmental management

|June 27, 2025

概括

更厚的塑料薄膜覆盖 (PFM) 显著减少了塑料污染,并提高了干旱地区的作物产量. 使用0.015毫米的PFM可以最大限度地减少酸的释放,改善土壤健康,为干旱地区的农业提供可持续的解决方案.

科学领域:

农业科学农业科学
环境科学环境科学
土壤科学土壤科学

背景情况:

塑料薄膜覆盖 (PFM) 对于干旱地区的作物产量至关重要,但也会造成二次污染.
酸乙 (PAE) 是塑料薄膜降解的主要污染物.
在保持作物生产率的同时,减少PFM污染对于可持续农业至关重要.

研究的目的:

为了研究不同厚度的塑料薄膜对PAE释放和干地玉米的土壤健康的影响.
确定最佳的PFM厚度,以最大限度地减少环境污染并最大限度地提高作物产量.
评估PFM对干旱环境中的土壤特性和农业生产力的长期影响.

主要方法:

实地实验是在一个干旱的中国绿洲中使用旱地玉米进行的.
测试了四种塑料薄膜厚度 (0.015,0.010,0.008,0.006毫米) 和一个无合控制.
测量包括PAE释放率,薄膜表面完整性,土壤中的塑料残留物,土壤水热状态,土壤有机碳分数,微生物生物质和谷物产量.

主要成果:

随着薄膜厚度的增加,PAE释放率显著降低,最低为0.015毫米 (19.7%).
较厚的薄膜 (特别是0.015毫米) 显示出更好的表面完整性,更少的土壤塑料残留物,以及改善的土壤热水条件.
0.015毫米的PFM显著增强了土壤微生物生物质的碳和,容易氧化的有机碳和溶解的有机碳.
用0.015毫米的PFM (18,091公斤/公) 的谷物产量最高,优于其他处理方法.

结论:

更厚的塑料薄膜,特别是0.015毫米,有效地减少了干旱地区PFM的二次污染.
增加PFM厚度可以提高土壤健康,微生物活动和作物生产率.
厚厚的PFM为干旱地区的可持续农业提供了一个有希望的战略,平衡环境保护和粮食生产.

关键词:

干旱的灌地点是干旱的灌地点.环境优点环境优点玉米的生产率玉米的生产率甲酸 (PAE) 是一种甲酸.剩余的电影剩余的电影厚聚乙烯薄膜覆盖 (TPFM) 是一种方法.

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