中国农业科技导报2026，Vol.28Issue(6)：216-226,11.DOI:10.13304/j.nykjdb.2024.0967
经果林复垦对矿区排土场土壤理化性质和酶活性的影响
Effect of Economic Fruit Forest Teclamation on Soil Physical and Chemical Properties and Enzyme Activity in Dump of Mining Area
摘要
Abstract
To investigated the effects of fruit forest reclamation on soil physicochemical properties and enzyme activities in degraded mining soils at the dump site,the 1300 reclamation area of Manlailiang coal mine in Ordos city,Inner Mongolia was selected as the research site,with reclaimed woodlands of Hippophae rhamnoides,Prunus humilis and Xanthoceras sorbifolium serving as experimental plots,while Caragana korshinskii and abandoned land were used as controls.Soil samples were collected from 2 depth layers(0 to 20 and 20 to 40 cm)to analyze differences in soil properties and enzyme activities.The results showed that Hippophae rhamnoides significantly reduced soil bulk density in 20 to 40 cm soil layer by 9%and 11%compared to Xanthoceras sorbifolium and abandoned land,respectively,while increasing total porosity by 12%and 20%.The clay and silt content in the 2 soil layers of Prunus humilis and Xanthoceras sorbifolium were significantly higher than those of Caragana korshinskii.The pH in 0 to 20 cm soil layer of Hippophae rhamnoides was 7%and 15%lower than that of Xanthoceras sorbifolium and abandoned land,respectively,with total and surface-available nutrients in the 2 soil layers significantly higher than these in abandoned land.Rapidly available phosphorus of Hippophae rhamnoides and Xanthoceras sorbifolium increased by 167%and 166%in 0 to 20 cm soil layer and by 241%and 261%in 20 to 40 cm soil layer,respectively,compared to abandoned land.Surface rapidly available potassium of Hippophae rhamnoides and Xanthoceras sorbifolium increased by 21%and 16%in 0 to 20 cm soil layer,while in 20 to 40 cm soil layer increased by 26%and 27%compared to abandoned land.The soil urease activity of Hippophae rhamnoides in 20 to 40 cm soil layer increased significantly by 32%and 21%,respectively,the catalase activity increased significantly by 22%and 51%,respectively,and the catalase activity in 0 to 20 cm soil layer increased significantly by 23%and 21%,respectively.The soil sucrase activities of Hippophae rhamnoides and Xanthoceras sorbifolium in 0 to 20 cm soil layer were significantly increased by 411%and 577%,respectively,and the alkaline phosphatase activities were significantly increased by 103%and 124%,respectively,compared to Prunus humilis.Above results provided critical insights into the ecological benefits and economic value of fruit forest reclamation in semi-arid coal mine dump areas,offering a scientific basis for future restoration strategies.关键词
经果林/排土场复垦/理化性质/土壤酶活性Key words
fruit forest/reclamation of dumps/physicochemical properties/soil enzyme activity分类
农业科技引用本文复制引用
李昊儒,左合君,郝瑞,陈士超,陈雪,闫敏..经果林复垦对矿区排土场土壤理化性质和酶活性的影响[J].中国农业科技导报,2026,28(6):216-226,11.基金项目
鄂尔多斯市科技重大专项(2022EEDSKJZDZX012) （2022EEDSKJZDZX012）
荒漠化防治与沙区资源保护利用创新团队项目(BR241301) （BR241301）
沙漠沙地生态保护与治理技术创新团队项目(NMGIRT2408). （NMGIRT2408）
