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| 基金项目：江西省自然资源项目“江西省上栗县长平乡富硒土壤资源地球化学调查”（20230006） |
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| 摘要： |
| 以江西上栗长平乡为研究区，基于1∶5万和1∶1万土地质量地球化学调查，运用GIS空间分析、相关性统计及多指标综合评价法，系统评估土壤Se含量、土壤环境质量与土地质量地球化学等级，揭示富硒土壤资源特征与开发潜力。结果表明：区内土壤Se平均含量为0.59 mg/kg，显著高于全国背景值（0.29 mg/kg）；富硒土壤面积占农业用地面积的91.56%，其中绿色食品适宜区面积为16.27 km2；土壤环境质量优良，优先保护类与安全利用类土壤占97.53%，土地质量以三等（中等）为主；土壤硒富集的基本机制在于二叠纪富硒母岩风化、竹林植被富集与陡坡地貌聚硒等协调作用，构建“地质+生态+地貌”三位一体的富硒土壤评价框架。研究成果可为区域富硒产业规划、资源合理利用及乡村振兴战略实施提供参考。 |
| 关键词：富硒土壤 综合评价 开发潜力 江西长平 |
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| Abstract: |
| Taking Changping Township, Shangli County, Jiangxi Province as the research area, based on 1∶50,000 and 1∶10,000 land quality geochemical surveys, GIS spatial analysis, correlation statistics and multi-index comprehensive evaluation methods were adopted to systematically assess soil selenium content, environmental quality and land quality geochemical grade, revealing the characteristics and development potential of selenium rich soil resources. The results show that the average content of selenium in the soil of the study area is 0.59 mg/kg, which is significantly higher than the national background value (0.29 mg/kg). The area of selenium-rich soil accounts for 91.56% of agricultural land, among which the area suitable for green food is 16.27 km2. The soil environmental quality is excellent. The priority protection and safe utilization types of soil account for 97.53%, and the land quality is mainly grade three (medium). The fundamental mechanism of soil selenium enrichment lies in the coordinated effects of weathering of selenium-rich parent rocks in the Permian period, enrichment of bamboo forest vegetation and selenium accumulation in steep slope landforms, etc. A three-in-one evaluation framework of″ geology + ecology + geomorphology ″for selenium-rich soil is constructed. The research results can provide references for the planning of regional selenium-rich industries, the rational utilization of resources and the implementation of the rural revitalization strategy. |
| Keywords:selenium-rich soil comprehensive evaluation exploitation potential Changping Township in Jiangxi Province |
| 曹员兵，孙 超.江西上栗长平乡富硒土壤资源综合评价[J].地质学刊,2026,50(2):198-206 |
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