中国生态农业学报（中英文）2026，Vol.34Issue(1)：12-20,9.DOI:10.12357/cjea.20250409
秸秆改土产能时空一体化处理的意义及局限性
Significance and application limitation of the space-time Integration of Soil improvement and Energy production by using Straw(ISES)
摘要
Abstract
China produces a substantial amount of crop straw annually.Improper disposal,management,and burning pose significant threats to water and atmospheric quality.Straw return to the field is currently the primary method used to address the environmental risks posed by crop straw.Based on its purpose,straw return can be categorized into two types:direct in-situ return,aimed at on-site straw disposal,and crop growth barrier-eliminating relocated return,designed to mitigate crop growth constraints.However,neither of these approaches utilizes the bioenergy potential of straw.Although they may enhance soil organic matter content to some extent,their effects are limited and lack significant cumulative benefits over time.The bioenergy of straw is utilized when it is converted in-to biogas through anaerobic fermentation in a biogas digester;however,its implementation is challenging because of factors such as unstable gas production and difficulties in treating the residue and liquid byproducts.This study proposed a novel straw management method,termed the"space-time Integration of Soil improvement and Energy production by using Straw"(ISES),which simultan-eously achieves soil improvement and energy production within the same time and spatial framework.Specifically,ISES involves ap-plying crop straw collected from the surrounding area to the soils requiring remediation at a rate exceeding 5％of the soil weight of plow layer,thoroughly mixing it with the soil,and conducting sealed anaerobic fermentation under flooded conditions.The biogas generated from this process can be collected for using as a household fuel or in other applications.The ISES method can significantly enhance soil organic matter across fertility gradients.Its gas production and methane concentration are comparable to those of tradi-tional biogas fermentation,without the need to handle biogas residues or slurry.It has multiple objectives,including soil improve-ment,bioenergy production,and carbon sequestration.Thus,further research is needed to 1)investigate carbon transformation and methane production processes in the ISES system,2)examine factors influencing gas yield and methane concentration,and 3)assess the environmental effects during and after ISES treatment.Such studies are essential for optimizing the treatment process,identifying suitable soil types and treatment timings for ISES,mitigating environmental impacts,establishing safety measures,and evaluating economic feasibility of ISES.关键词
作物秸秆/秸秆还田/土壤改良/秸秆生物能利用/时空一体化处理Key words
crop straw/straw return to field/soil improvement/straw bioenergy utilization/space-time integrated management分类
农业科技引用本文复制引用
蔡祖聪,黄新琦,温腾..秸秆改土产能时空一体化处理的意义及局限性[J].中国生态农业学报（中英文）,2026,34(1):12-20,9.基金项目
国家自然科学基金重点项目(42430701)资助 The study was supported by the National Natural Science Foundation of China(42430701). （42430701）
