中国地质2024，Vol.51Issue(2)：676-688,13.DOI:10.12029/gc20230813003
富硒土地开发利用评价体系的建立及应用
Establishment and application of evaluation system for development and utilization of selenium-rich land:A case study in Lintong District,Xi'an
摘要
Abstract
This paper is the result of agricultural geological survey engineering. [Objective]Selenium(Se)intake in the human body primarily originates from the food chain,mostly derived from soil.The research aims to establish a scientific and rational evaluation system for the development and utilization of selenium-rich land due to the limited and valuable selenium-enriched soil resources in China.[Methods]This study focuses on the Guanzhong region,particularly Lintong District,integrating geophysical survey findings with assessment criteria reflecting agricultural land's natural conditions and infrastructure levels.The developed evaluation system encompasses five major categories and twelve indicators,including site conditions,soil selenium content,physicochemical properties,soil quality,and land management.Moreover,suitability assessment for selenium-rich land development and utilization was conducted in Lintong District as a case study.[Results]The land in Lintong District was categorized into five levels:highly suitable,suitable,moderately unsuitable,unsuitable,and highly unsuitable.The highly suitable and suitable development areas covered 248.35 km2,mainly distributed in the northern areas of Lintong District,as Xinshi Town,Liyang Town,Xuyang Town,Xiangqiao Town,and the central-eastern parts of Hezhai Town.Analysis of wheat Se content and Se enrichment ratios within different suitability evaluation zones revealed a strong correlation between the suitability of selenium-rich land and the degree of selenium enrichment in wheat.[Conclusions]The developed evaluation system demonstrates significant scientific guidance and exemplary significance for the utilization of selenium-rich land resources.It underscores the need for a systematic approach to efficiently develop and utilize these resources,emphasizing the critical link between soil suitability and the selenium enrichment of agricultural produce.关键词
富硒土地/开发利用/评价体系/农业地质调查工程/临潼区/关中地区Key words
selenium-rich land/development and utilization/evaluation system/agricultural geological survey engineering/Lintong District/Guanzhong region分类
管理科学引用本文复制引用
任蕊,杜少喜,晁旭,张立君,支倩,徐翠玲,凌丹丹,马宇梅,陈继平,乔新星..富硒土地开发利用评价体系的建立及应用[J].中国地质,2024,51(2):676-688,13.基金项目
陕西省公益性地质调查项目(202201、20180307)联合资助. Supported by Shaanxi Province Public Welfare Geological Survey Projects(No.202201,No.20180307). （202201、20180307）
