文献类型： 外文期刊

作者： Zhang Dan ¹ ; Liu Hong-bin ¹ ; Hu Wan-li ² ; Qin Xiao-hui ³ ; Ma Xing-wang ⁴ ; Yan Chang-rong ⁵ ; Wang Hong-yuan ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Nonpoint Source Pollut Control, Minist Agr, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

2.Yunnan Acad Agr Sci, Inst Agr Environm & Resources, Kunming 650205, Yunnan, Peoples R China

3.Xinjiang Agr Dept, Protect Stn Agr Resources & Environm, Urumqi 830001, Peoples R China

4.Xinjiang Acad Agr Sci, Inst Soil Fertilizer & Water Saving, Urumqi 830091, Peoples R China

5.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China

关键词： Xinjiang;residual mulching film;influential factor;agricultural resources;agricultural pollution

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2016 年 15 卷 11 期

页码：

收录情况： SCI

摘要： Pollution of residual plastic film in arable lands is a severe problem in China. In this study, the status of residual film and influential factors were investigated using the methods of farm survey in combination with questionnaires and quadrat sampling at a large number of field sites in Xinjiang Uygur Autonomous Region, China. The results showed that the amount of film utilization increased largely and reached to 1.8x10(5) t in 2013. Similarly, the mulching area also substantially increased in recent decades, and reached to 2.7x10(5) ha in the same year. According to the current survey, 60.7% of the sites presented a greater mulch residue than the national film residue standard (75 kg ha(-1)), and the maximum residual amount reached 502.2 kg ha(-1) in Turpan, Xinjiang. The film thickness, the mulching time and the crop type all influenced mulch residue. The thickness of the film had significantly negative correlation with the amount of residual film (P<0.05), while the mulching years had significantly positive correlation with it (P<0.05). The total amount of residual film in Xinjiang was 3.43x10(5) t in 2011, which accounted for 15.3% of the cumulative dosage of mulching. Among all the crops, the cotton fields had the largest residual amount of mulch film (158.4 kg ha(-1)), and also the largest contribution (2.6x10(5) tons) to the total amount of residual film in Xinjiang.