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华北平原是我国的重要粮食产地,有着丰富的秸秆资源和较高的秸秆还田率。合理的秸秆还田可以有效改善土壤质量、促进作物生长以及提高土壤固碳减排能力,但也会带来出苗率下降、病虫草害发生几率加大等风险,从而引起作物产量降低的负面效应。如何通过调整秸秆还田量、还田方式以及配合农艺措施等缓解秸秆还田带来的不利影响是亟待解决的问题。关于华北平原秸秆还田生态效应的研究应重点关注华北平原秸秆还田的负面效应产生原因及相应的解决措施、秸秆还田对农田系统增温潜势的影响,以及秸秆还田的长期效应与可持续性等方面。
North China Plain is an important grain producing area in China, with rich straw resources and high straw returning rate. Reasonable straw returning can effectively improve soil quality, promote crop growth and increase soil carbon sequestration abatement capacity, but it also brings the risk of decreased emergence rate and increased risk of pests and weeds, thus causing the negative effect of crop yield reduction . How to alleviate the adverse effects of straw returning by adjusting the amount of straw returning to the field, returning to the field and cooperating with agronomic measures are problems to be solved urgently. The research on the ecological effects of straw returning to the North China Plain should focus on the causes of the negative effects of straw returning to the North China Plain and the corresponding solutions. The effects of straw return on the warming potential of farmland systems and the long-term effects of straw returning Sustainability and so on.