新疆阿克苏地区棉田残膜污染现状分析

Analysis of the Current Situations of Plastic Films Residue Pollution of Cotton Field in Xinjiang Aksu Area

南疆地区残膜污染严重,对残膜污染的现状不清晰,残膜在土壤中的分布特点等情况有待进一步的调查,对南疆阿克苏地区各县市以及兵团各团场种植用地进行了田间取样调研.通过分析,结果表明,南疆地区的残膜污染问题仍较严重,阿克苏地区县市残膜残留量均值为244.32kg/hm^2,残膜残留量最大为352.46 kg/hm^2,采样地点为柯坪县.与新疆地方农田比较,兵团各团场农田残膜残留量普遍较低,采样测量数据显示,各团场残膜残留量均值为198.77 kg/hm^2,其中残膜残留量最小值为166.66 kg/hm^2.在残膜的分布上,土壤表层残膜残留量约占总残膜残留量的6.41%,0~30cm土壤层残膜残留量分布较为均匀,占残膜残留量总量的93.52%,30~50 cm土壤层残膜残留量分布较少,采样数据表明可采样残膜较少.研究对于了解南疆地区残膜污染的实际情况有较大帮助.

Currently, the southern region of plastic film pollution, the status quo is not clear contaminated plas- tic film, plastic film and other distribution in the soil in the case pending further investigation. In this paper, as well as city and county of Aksu in southern Xinjiang Corps mission field planting land survey conducted field sampling. Through analysis, the results showed that the plastic film pollution southern region still serious, Aksu Prefecture counties plastic film residual volume is 244.32 kg/hm2, maximum residual amount of plastic film is 352.46 kg/hm2, sampling location for Keping county. Compared with the Xinjiang local farmland, agricultural plastic film residues in the Corps mission field is generally low, sampling measurement data, mission field of plastic film residue volume is 198.77 kg/hm2, the smallest plastic film residual value of 166.66 kg/hm2. In the distribution of plastic film, plastic film residual soil surface is about 6.41 percent of the total residual amount of plastic film, 0-30 cm layer of plastic film residues in soil are more evenly distributed, accounting for 93.52% of the total residual amount of plastic film, 30-50 cm soil layer plastic film remaining amount distributed less sampling data indicate that the sample may be less plastic film. It is helpful for research on the southern border region to understand the actual situation of pollu- tion in plastic film to provide reference data.