Authors

Abstract

Agricultural plastic mulch films have significantly increased crop yields but have also caused severe residual film pollution. This review summarizes the research progress in residual film recovery machinery, intelligent monitoring systems, film–impurity separation technologies, and resource utilization methods, while analyzing the advantages, limitations, and development trends of different technologies. Post-harvest recovery equipment has been widely applied due to its strong adaptability and broad application range, whereas seedling-stage and pre-sowing recovery technologies still require improvements in automation and environmental adaptability. Intelligent monitoring technologies can enhance the evaluation of recovery processes, but their application is restricted by complex field environments. Vibrating, pneumatic, and water-washing separation technologies exhibit advantages in processing capacity, film purity, and impurity removal, respectively. Recycled pelletizing and wood–plastic composites are important resource utilization pathways, but they still face challenges related to cost and performance. In the future, residual film management will develop toward intelligent, efficient, and high-value utilization.

Abstract in Chinese

农业塑料覆盖膜提高了作物产量，但也造成严重的残膜污染。本综述总结了残膜回收机械、智能监测系统、膜杂分离技术及资源利用方法的研究进展，并分析了不同技术的优势、局限性和发展趋势。收获后回收设备因适应性强、应用范围广而得到广泛应用，而苗期和播前回收技术仍需提升自动化和环境适应能力。智能监测技术可提高回收过程评价水平，但复杂田间环境限制其应用。振动、气力和水洗分离技术分别在处理能力、膜纯度和杂质去除方面具有优势。再生造粒和木塑复合材料是重要资源化途径，但仍面临成本和性能挑战。未来残膜治理将向智能化、高效化和高值化方向发展。