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| Status and trends in application of technology to prevent plastic film residual pollution |
| Received:March 07, 2017 |
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| KeyWord:plastic film residual pollution;pollution prevention technology;development trends |
| Author Name | Affiliation | E-mail | | XUE Ying-hao | Rural Energy & Environment Agency, Ministry of Agriculture, Beijing 100125, China | | | CAO Si-lin | Machinery Research Institute, Xinjiang Academy of Land Reclamation Sciences, Shihezi 832000, China | | | XU Zhi-yu | Rural Energy & Environment Agency, Ministry of Agriculture, Beijing 100125, China | | | JIN Tuo | Rural Energy & Environment Agency, Ministry of Agriculture, Beijing 100125, China | | | JIA Tao | Rural Energy & Environment Agency, Ministry of Agriculture, Beijing 100125, China | | | YAN Chang-rong | The Institute of Environment and Sustainable Development in Agriculture, CAAS/Key Laboratory for Prvention and Control of Residual Pollution in Agricultural Film, MOA, Beijing 100081, China | yanchangrong@caas.cn |
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| Abstract: |
| Plastic film has been recognized as a valuable material within agricultural production in China in recent years. Consequently, plastic film mulching technology has markedly improved grain crop yields and water use efficiency by conserving water, maintaining soil moisture, suppressing weeds, increasing soil temperature, and improving cold tolerance in China's Northern drylands, semiarid regions, high altitude regions, and Southern cold regions. Plastic film coverage in China now covers an area of 18.3 million hectares, and the amount of plastic film used reached 1.45 million tons in 2015. Hence, plastic film mulching has played an important role in Chinese agricultural production. Despite the benefits of plastic film mulching technology, its widespread use has generated large amounts of plastic film mulching residue, which has led to unsustainable farmland use, thereby affecting the agricultural environment. In this paper, we summarized the current state of key technologies to prevent residual pollution by plastic film, including alternative biodegradable film technologies, the multipurpose plastic film technique, and film machine recycling technologies. We also propose strategies to deal with plastic film pollution, which may provide a scientific basis for the rational application of plastic mulching technology and the corresponding prevention of residual film pollution. |
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