新疆农田地膜残留的影响因素分析

Influence Factors of Residual Film's Distribution in Xinjiang

[目的]研究新疆农田地膜残留的影响因素,探讨农田地膜的残留规律。[方法]选择新疆31个地膜使用重点县市的棉田、玉米田和加工番茄田作为研究对象,分析覆膜年限、离村庄距离和作物种植种类对地膜残留规律的影响。[结果]农田覆膜年限、离村庄距离和作物种植种类对新疆农田地膜残留都有影响,其中农田覆膜年限和作物种植种类对地膜残留的影响较大。随着覆膜年数的增加,农田残膜密度会增加;离村庄距离<1 km的农田地膜密度相对较小;不同作物农田地膜残留规律不一致,同等条件下,加工番茄田残膜密度最小。[结论]该研究为新疆农田地膜污染的防治提供了理论依据。

[ Objective] The study aims to analyze the influence factors of residual film＇ s distribution and the distribution characteristics of mulch residues in Xinjiang field. [ Method] Cotton field, corn field and tomato field were choose from 31 cities in Xinjing as research objects, and the influence of different mulching years, distance from the village and crop fields on distribution characteristics of mulch residues was analyzed. [ Result] Mulching years, distance from the village and crop types all have influence on mulch residues. Mulching years and distance from the village have greater impact on mulch residues. The density of film residue has a trend of increase with the increase of film residue. Fields at a distance of less than 1 km from the village have smaller density of mulch residues. Residual film＇ s distribution in different crop fields is not consistent, and tomato field has the smallest density of mulch residues under the same condition. [ Conclusion ] The research could provide theoretical references for the control of field pollution from residual film in Xinjiang.