本研究聚焦中国北方干旱半干旱地区,阐述土壤有机质对土壤质量的重要性及该地区植被恢复对其含量影响效果的差异。通过选取相关文献进行综合分析,研究植被建设对土壤有机质含量的影响状况。结果显示:乔木栽植对该区域内土壤有机质含量有不显著的增加作用,灌木栽植则有明显增加作用,不同降雨量地区乔木栽植对土壤有机质含量增加作用均不显著,且400 mm以下地区增加量大于400 mm以上地区。随着降雨量增加,灌木恢复后土壤有机质含量逐渐降低。综上,干旱半干旱区植被栽植能改善土壤质量、增加有机质含量,在北方干旱半干旱地区矿区开展复垦及生态修复时,应选适宜当地环境条件的树种,优先选择灌木栽植很有必要。This study focuses on the arid and semi-arid areas of northern China, elucidating the importance of soil organic matter on soil quality and the differences in the effects of vegetation restoration on its content in the area. By selecting relevant literature for comprehensive analysis, the impact of vegetation construction on soil organic matter content was studied. The results show that: tree planting has an insignificant effect on increasing soil organic matter content in the area, while shrub planting has a significant increasing effect. In areas with different rainfall areas, tree planting has an insignificant effect on increasing soil organic matter content, and areas below 400 mm have an increase in soil organic matter content. The area is larger than 400 mm. As rainfall increased, soil organic matter content gradually decreased after shrub restoration. In summary, vegetation planting in arid and semi-arid areas can improve soil quality and increase organic matter content. When carrying out reclamation and ecological restoration in mining areas in northern arid and semi-arid areas, tree species that are suitable for local environmental conditions should be selected, and it is necessary to give pri
