| 临沂市农用地膜残留系数研究与影响因素分析 |
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| 引用本文： | 滕世辉,李晓霞,房晓燕,张相松,杨化恩.临沂市农用地膜残留系数研究与影响因素分析[J].农学学报,2018,8(7). |
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| 作者姓名： | 滕世辉 李晓霞 房晓燕 张相松 杨化恩 |
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| 作者单位： | 山东省临沂市河东区农业局 山东 河东区,山东省临沂市河东区农业局 山东 河东区,山东省临沂市农业环境保护站 山东 临沂,山东省临沂市农业环境保护站 山东 临沂,山东省临沂市河东区农业局 山东 河东区 |
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| 基金项目： | 临沂市科技发展计划项目(20131016)。 |
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| 摘 要： | 农业地膜作为农业增产的重要手段,在带来显著经济效益的同时,残膜污染越来越引起重视,本研究采用实地调查和定位点采样,对主要覆膜作物及典型覆膜农区进行了实地调查,对3种主要覆膜作物、不同土壤类型设立定位监测点进行采样分析,初步摸清了影响地膜残留的主要因素和变化规律。从本次研究发现,所有监测地块农田土壤中地膜残留量均低于20世纪90年代农业部在全国17个省(市)调查的平均残留60 kg/hm2的水平,也没有超过GB/T 25413-2010《农田地膜残留量限值及测室》中地膜污染的一级标准;同种种植制度不同年限当季地膜残留系数差异不明显,而年均地膜残留量呈上升趋势;种植制度、覆膜年限、土壤类型、回收习惯和地膜质量对地膜残留影响较大。
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| 关 键 词： | 覆膜方式 覆膜方式 饲用玉米 产量 水分利用效率 |
| 收稿时间： | 2017/8/18 0:00:00 |
| 修稿时间： | 2017/9/8 0:00:00 |
Residue Coefficient of Agricultural Mulch Film and Its Influencing Factors in Linyi |
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| Abstract: | Mulch film, as an important means of increasing agricultural production, has brought remarkable economic benefits, but more and more attention has been paid to plastic film pollution, The authors used field surveys and spot sampling, conducted a field survey of the main crop and the typical agricultural mulching film, on different types of soil covered 3 main crops, set up monitoring sites the sampling analysis, find out the main factors affecting the initial and variation of residual plastic film. Findings from this study, all monitoring plots in farmland soil mulch residues were lower than that in 1990s the Ministry of agriculture in 17 provinces (city) the average residue level of 60 kg/hm2 survey, did not exceed GB/T 25413-2010 "farmland mulch residue limit in film pollution value and test room" of a standard; the same cropping system when the season in different years of plastic film residue coefficient difference is not obvious, and the annual mulch residues increased; cropping system, soil type, age, film and plastic film recycling habits have great influence on the quality of plastic film residue. |
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| Keywords: | Plastic Film Residue Influencing Factor |
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