A Biodegradable Ramie Fiber-Based Nonwoven Film Used for Increasing Oxygen Supply to Cultivated Soil
A Biodegradable Ramie Fiber-Based Nonwoven Film Used for Increasing Oxygen Supply to Cultivated Soil
复制标题
用于增加耕地供氧的可生物降解苎麻纤维非织造薄膜
DOI：
10.3390/app8101813
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发表时间：
2018-10
影响因子：
2.7
通讯作者：
Wang Hongying
中科院分区：
文献类型：
--
作者：
Zhou Wanlai;Niu Yanbin;Wang Chaoyun;Yang Yuanru;Tan Zhijian;Yi Yongjian;Yu Wang;Wang Hongying
塑料农用非织造布薄膜是传统的覆盖材料，由于其生物降解性差，容易引起各种生态问题。本文制备了苎麻纤维/淀粉非织造膜，并将其作为垫层材料，覆盖于耕作土壤上，分析了其生物降解性和孔隙率特性，研究了其对土壤供氧的影响。结果表明，所制备的膜具有良好的生物降解性（72 d后降解率为65.6%），膜具有疏松多孔的结构，主要孔径在250-300 μm之间。当土壤含水量降至44%左右后，与垫在平板底面的薄膜紧密接触的土壤中的氧气浓度急剧上升，然后稳定在20.1%，而与平板直接接触的土壤中的氧气浓度仍然处于极度缺氧状态（0.2%）。结果表明，使用制备的膜增加了与其接触的土壤的氧气供应，这充分补偿了土壤微生物活动引起的氧气消耗。因此，所制备的膜非常适合于在经常发生缺氧的容器内的短期植物栽培。
Plastic agricultural nonwoven films are traditionally used as covering materials, and are prone to cause various ecological problems due to their poor biodegradability. In this paper, a ramie fiber/starch nonwoven film was prepared, and was used as bedding material, that was covered by cultivated soil as opposed to covering it. The biodegradability and porosity characteristics of the film were analyzed, and its effect on oxygen supply to soil was investigated. Results showed that the prepared film had good biodegradability (65.6% after 72 days), and had a loose and porous structure, with the main pore size being in the range of 250–300 μm. After the soil moisture content was reduced to about 44%, the oxygen concentration in the soil that was in close contact with the film, which padded the bottom surface of the plate, rose sharply and then kept stable at 20.1%, whereas soil directly in contact with the plate remained extremely anoxic (0.2%). It was concluded that use of the prepared film increased the oxygen supply to the soil in contact with it, which sufficiently compensated for the oxygen consumption caused by soil microbial activities. Thus, the prepared film is very suitable in short-term plant cultivation within containers where anoxia often occurs.
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影响因子：
5.3
作者：
Dharmalingam, Sathiskumar;Hayes, Douglas G.;Wszelaki, Annette L.
通讯作者：
Wszelaki, Annette L.
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
W. Yin
通讯作者：
W. Yin
影响因子：
1.8
作者：
P. Siwek
通讯作者：
P. Siwek
影响因子：
5.3
作者：
Hablot, Elodie;Dharmalingam, Sathiskumar;Narayan, Ramani
通讯作者：
Narayan, Ramani
DOI：
--
发表时间：
2013
期刊：
Plant Fiber Sciences in China
影响因子：
--
作者：
Wang Hong-ying
通讯作者：
Wang Hong-ying