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政策解读:《农业农村污染治理攻坚战行动计划》

2018-11-29 16:44:49 来源:中国农机网原创 作者:四夕 阅读量:54178 评论

导读:日前,生态环境部、农业农村部联合印发了《农业农村污染治理攻坚战行动计划》(以下简称《行动计划》),并正式对外公布。这意味着为期三年的农业农村污染治理攻坚战正式打响,各项任务将进入实施阶段。

  【中国农机网 政策导读】日前,生态环境部、农业农村部联合印发了《农业农村污染治理攻坚战行动计划》(以下简称《行动计划》),并正式对外公布。这意味着为期三年的农业农村污染治理攻坚战正式打响,各项任务将进入实施阶段。
 
  生态环境部土壤生态环境司司长苏克敬曾表示,近年来,农业农村生态环保工作虽取得积极进展,但总体形势依然严峻,“脏乱差”问题在一些地区仍较突出,已成为全面建成小康社会的突出短板。《行动计划》实施就是要补齐农业农村生态环保突出短板,增强农民的获得感和幸福感。
 
  目标:2020年实现“一保两治三减四提升”
 
  《行动计划》提出到2020年,实现“一保两治三减四提升”。具体内容为:“一保”,即保护农村饮用水水源,农村饮水安全更有保障;“两治”,即治理农村生活垃圾和污水,实现村庄环境干净整洁有序;“三减”,即减少化肥、农药使用量和农业用水总量;“四提升”,即提升主要由农业面源污染造成的超标水体水质、农业废弃物综合利用率、环境监管能力和农村居民参与度。
 
  为此,《行动计划》主要明确了五项主要任务,即:加强农村饮用水水源保护、加快推进农村生活垃圾污水治理、着力解决养殖业污染、有效防控种植业污染、提升农业农村环境监管能力
 
  在行动过程中要求坚持四项基本原则:保护优先、源头减量,优化种植和养殖生产布局、规模和结构,从源头减少农业面源污染;问题导向、系统施治,系统推进农业投入品减量化、生产清洁化、废弃物资源化、产业模式生态化;因地制宜、实事求是,采用适用的治理技术和模式,注重实效,不搞一刀切,不搞形式主义;落实责任、形成合力,建立上下联动、部门协作、责权清晰、监管有效的工作推进机制。
 
  亮点:农膜“谁生产、谁回收”,三年内回收率要超80%
 
  值得注意的是,《行动计划》提出了到2020年,全国农膜回收率达到80%以上河北、辽宁、山东、河南、甘肃、新疆等农膜使用量较高省份力争实现废弃农膜全面回收利用。在重点用膜地区,整县推进农膜回收利用,推广地膜减量增效技术,做好100个地膜回收利用示范县建设。《行动计划》同时要求试点“谁生产、谁回收”的地膜生产者责任延伸制度,实现地膜生产企业统一供膜、统一回收
 
  农膜覆盖技术作为继种子、农药、化肥之后的第四大农业生产资料,因其保温增墒、抗旱节水的特点为农业生产方式的改变提供了可能,早在20世纪90年代我国农作物覆膜栽培面积就曾多达6000多万亩,被誉为山区脱贫致富的“温饱工程”。
 
  随着技术的进步,我国覆膜栽培从冷凉地区发展到城郊平原,从果蔬作物扩大到粮棉作物。但是在提质增效的同时,废弃的农膜塑料却也带来了不容忽视的环境资源问题。地膜降解产生有害物质,降低了土壤含水量,削弱抗旱能力,引起次生盐渍化,造成土壤板结且肥力下降并直接影响土壤供应作物水分、养分能力。而残膜的随意堆放更是造成了严重的“白色污染”。
 
  《行动计划》的印发意味着废旧地膜将走出一条提升质量标准、提高回收率和资源化利用的新路子:以加厚地膜应用、机械化捡拾、专业化回收、资源化利用为主攻方向。
 
  行动:农膜回收行动不断推进,现有问题亟待解决
 
  农业农村部消息,自启动农膜回收行动以来,构建了国家、省、县三级工作推进组,创建了100个地膜回收示范县、4个地膜生产者责任延伸试点县,培育壮大了地膜回收第三方主体,加大了降解地膜试验示范和残膜机械回收研发力度、对接了产业技术体系,完善了地膜残留监测网络,强化了地膜回收监督考核,有力推动了农膜回收工作。
 
  目前,内蒙古、新疆、甘肃3省(区)100个地膜回收示范县面积已达5500多万亩。2017年甘肃省回收废旧地膜13.6万吨,回收利用率达80.1%,从事废旧农膜回收加工的各类企业已达224家;新疆40个覆膜大县已接近80%,建成86个废旧地膜回收加工厂、475个废旧农膜回收站。
 
  “敢叫旧貌换新颜”,农膜回收行动的全面推进,使得很多农村地区“白色污染”得到有效防控,但目前依然存在不少问题亟待解决。一般来说,残膜含杂率50%以下才有回收价值,只有使用厚膜,残膜的机械化回收和工厂化加工才能更好实现。但是现状却是在同等覆盖面积下,地膜越薄,亩均使用成本越低,因此易碎的超薄地膜更加受欢迎。而超薄地膜的使用会导致一系统环境问题,因其易破碎的特点,人工捡拾清理难度大,现有残膜回收机械又难以满足回收要求。此外,残膜回收治理的标准和政策方面的相对缺失也为残膜回收的进一步发展提高了难度。
 
  在此基础上,未来还需要以加厚地膜应用、机械化捡拾、专业化回收、资源化利用为主攻方向,加快可降解地膜等新型产品的引进试验,推进新型地膜产品由试验研究走向示范推广;在生产端或销售端给予生产厂商或农民补贴,提高推广使用可降解地膜的积极性;加大自主创新力度,研发生产更加适用实效的残膜回收机械,为残膜回收机械化解决后顾之忧。
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