秸秆还田技术在土壤修复领域应用研究进展

Research Progress on Application of Straw Returning Technology in the Field of Soil Remediation

秸秆是良好的生物资源之一,废弃或焚烧不仅浪费资源,而且带来环境污染问题。近年来,我国对秸秆焚烧的管控愈发严格,国家鼓励发展秸秆综合利用技术。黑土地的土壤退化是全球性的危机,主要原因是连年耕作对土壤养分的过量吸收,养分无法得到有效补充,同时,农民过量施用化肥,也造成土壤环境污染。秸秆资源化利用,是延缓我国粮食主产区黑土土壤退化进程的有效措施之一。对近年来国内外秸秆还田技术现状进行了综述,并对秸秆还田技术在土壤修复领域的应用前景及发展方向进行了展望。

Straw is one of the best biological resources.Abandonment or incineration of straw not only waste resources,but also bring environmental pollution problems.In recent years,the control of straw incineration have been becoming increas-ingly strict in our country,proposing the comprehensive utilization technology of straw.Black soil degradation is a global crisis mainly due to the excessive absorption of soil nutrients by continuous cultivation,which caused nutrients cannot be effectively replenished.Meanwhile,the excessive application of chemical fertilizers by farmers caused soil environmental pollution.The utilization of straw resources is one of the most effective measures to delay the degradation process of black soil in China's main grain-producing areas.This paper reviewed the current situation of domestic and foreign straw returning technology in recent years,and provided an outlook of straw returning technology in the field of soil remediation.