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本文采用大田原位降解和实验室土埋降解等实验，探明废旧天然纤维基非织造可降解地膜（Waste natural fiber Nonwoven Degradable Mulch, WNDM）的降解过程、降解行为及其降解影响因素和机理，构建降解周期预测模型．WNDM降解至180 d时，失重率达83.6%，机械损失率达85.2%，厚度损失率达67.6%，且外观表现出显著降解特征．影响WNDM样品降解的主要因素有土壤湿度、土壤pH和环境温度，且随时间的延长降解显著．WNDM降解效果最佳土壤湿度和土壤pH条件分别为40%和8.6．采用最小二乘法拟合曲线对WNDM的降解周期进行拟合，预测WNDM在416d内可实现完全降解．
Abstract：To evaluate and analyze the degradability of the waste natural fiber nonwoven degradable mulch(WNDM), the degradation process, degradation behavior, infiuencing factors and mechanism of WNDM are investigated by in-situ degradation experiments in field and buried soil in laboratory, and the degradation cycle prediction model is established. The weight loss rate, mechanical loss rate and thickness loss rate reach 83.6%,85.2% and 67.6%, and the appearance show significant degradation characteristics when the WNDM is degraded to 180 days. The main factors affecting the degradation of WNDM samples are soil moisture, soil pH and ambient temperature, and the degradation is significant with the extension of time. The optimum soil moisture and soil pH for WNDM degradation are 40% and 8.6, respectively. The degradation period of WNDM is fitted by the least square method, and it is predicted that WNDM could achieve complete degradation in 416 days.
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基本信息:
DOI：10.13568/j.cnki.651094.651316.2025.08.30.0003
中图分类号:TS176.5
引用信息:
[1]王志远,刘娴,邱迅,等.废旧天然纤维可降解非织造地膜降解性能研究[J].新疆大学学报(自然科学版中英文),2025,42(06):735-744.DOI:10.13568/j.cnki.651094.651316.2025.08.30.0003.
基金信息:
新疆维吾尔自治区自然科学基金“废旧天然纤维基非织造生态地膜的关键技术研究”（2022D01C31）; 新疆维吾尔自治区重点研发计划“罗布麻纤维产品研发关键技术及集成示范”（2023B02045-3）
2025-11-15
2025-11-15