岩矿测试2024，Vol.43Issue(4)：592-602,11.DOI:10.15898/j.ykcs.202310070155
基于生态位理论与AHP-TOPSIS模型的福建长汀县富硒土地资源综合评价
Comprehensive Evaluation of Selenium-Enriched Land Resources in Changting County,Fujian Province Based on Niche Theory and AHP-TOPSIS Model
摘要
Abstract
Changting County in Fujian Province possesses abundant selenium-enriched land resources,and a comprehensive evaluation of them,based on local conditions is significant for the effective and structured utilization of these resources.Due to the absence of a well-established theoretical framework in existing evaluation systems,the evaluation results are difficult to effectively guide the development of resources.This article is based on the niche theory and comprehensively considers the dominant factors,geographical factors,and limiting factors of selenium-enriched land resource development in Changting County to formulate an evaluation index system.The analytic hierarchy process(AHP)is used to calculate the weight of indicators,and the technique for order preference by similarity to an ideal solution(TOPSIS)method is applied to determine the weighted comprehensive index for comprehensive grading.The evaluation results show that the average selenium content in the soil of Changting County is 0.46mg/kg,and the selenium-enriched soil area reaches 2215.4km2,accounting for 71.36％of the total county area,which is mainly distributed in the eastern and western mountainous areas of Changting County.Applying the AHP-TOPSIS model,the selenium-enriched land resources in Changting County are classified into suitable areas,relatively suitable areas,generally suitable areas,and unsuitable areas,with areas of 271.35km2,1116.96km2,1062.07km2,and 654.13km2,respectively.The suitable areas,relatively suitable areas,and generally suitable areas are approximately consistent with the selenium-enriched areas designated in previous specifications,reflecting the dominant role of soil selenium content in the evaluation index system.The refined zoning results of the original selenium-enriched areas reflect the constraining effect of geographical and limiting factors on the development of selenium-enriched land resources.In the AHP-TOPSIS model based on niche theory,an evaluation index system is constructed with the aim of identifying the optimal niche for the development of selenium-enriched land resources.The evaluation method takes into account the differences in the impact of indicators on the evaluation results and the resource endowment conditions of the evaluation area.The evaluation results reflect the development potential of selenium-enriched land resources in Changting County,effectively improving the science of the evaluation compared to previous standards.关键词
层次分析法(AHP)/优劣解距离法(TOPSIS)/生态位/长汀县/富硒土地Key words
AHP/TOPSIS/niche/Changting County/selenium-enriched land分类
资源环境引用本文复制引用
唐志敏,湛龙,张晓东,陈国光,周墨,田福金,刘红樱,张洁,张明..基于生态位理论与AHP-TOPSIS模型的福建长汀县富硒土地资源综合评价[J].岩矿测试,2024,43(4):592-602,11.基金项目
中国地质调查局地质调查项目"华东地区自然资源动态监测与风险评估"(DD20230103) （DD20230103）
中国地质调查局地质调查项目"华东地区国土空间用途管制技术支撑与应用服务"(DD20230495) （DD20230495）
江苏省科技计划"一带一路"创新合作项目"黑土地土壤退化诊断评价与动态监测技术合作研发"(BZ2023003) （BZ2023003）
