生态区电网建设工程迹地土壤理化特性分析及改良研究

打开文本图片集

中图分类号：Q94：TQ452 文献标志码：A文章编号：1001-5922（2026）1-0274-06

Abstract：Aimingatthe problems of soil degradationand vegetation restoration inthedisturbed landof power grid projects in the ecologically sensitive and fragile areas of northern shaanxi，the physical and chemical properties of soil inthe disturbed areas were analyzed through field soil surveys and sampling.soil improvement experiments were designedand carriedoutto explore theeffectsof differentapplicationratesof water-retaining materials，as well as the improvement of carbon-source organic fertilizers combined with microbial agents，on soil water retention capacity，organic mater content，available nutrients，and vegetation survival rate.theresults show that water-retaining materials can significantly increase soil water content and vegetation survival rate，with the application rates of 2O g per potand 3O g per pot achieving beter effcts；the combined application of carbon-source organic fertlizers and microbialagents can efectively increase soil organic matterandavailable nutrientcontentsand improve soil ph value. this study provides practical basis and technical support for the ecological restoration of disturbed land caused by power grid projects in this region.

Key words ：ecologicall sensitive area ;power grid project;soil improvement ;vegetation restoration

生态敏感区，又称环境敏感区（environmentallysensitiveareas）[1-3]，是指对人类生产、生活活动具有特殊敏感性或具有潜在自然灾害影响，极易受到人为的不当开发活动影响而产生生态负面效应的地区，常用生态敏感度来评价[14]。（剩余8466字）