贵州省花溪区耕地土壤硒元素分布特征及富硒资源评价

Distribution Characteristics of Soil Selenium and Evaluation of Selenium-rich Resources of Huaxi District,Guizhou Province

通过贵州省花溪区耕地质量地球化学调查评价项目成果数据进行整理,广泛收集花溪区地质、自然地理、土壤类型、土地利用类型等资料,对该区硒元素分布特征进行了综合分析,运用地球化学指标评价全区硒元素地球化学等级。结果表明:区内硒元素含量平均值较高,为0.71 mg/kg;全区硒元素的分布与地层、土地利用类型、土壤类型密切相关;富硒耕地面积41.0466万亩,占全区耕地土壤面积86.65%,富硒耕地资源丰富。研究结果能为富硒特色耕地开发提供重要资料,应用于区内农业产业结构优化和农产品品质提升,带动当地经济发展,助力区内脱贫攻坚和乡村振兴战略的实施。

By study the results of the cultivated land quality geochemical investigation and evaluation project in Huaxi district of Guizhou province,extensive collection of geology,physical geography,soil types,land use types and other data in Huaxi area,the distribution characteristics of selenium in this area were com-prehensively analyzed,the geochemical grade of selenium in the whole region was evaluated by geochemical indexes.The results show that:The average content of selenium was 0.71 mg/kg,the distribution of selenium is closely related to stratum,land use type and soil type,the cultivated land area rich in selenium is 410466 mu,accounting for 86.65%of the cultivated land area in Tibet,Cultivated land rich in selenium is rich in resources.The research results can provide important data for the development of characteristic cultivated land rich in selenium,it is applied to the optimization of the agricultural industry structure and the improvement of the quality of agricultural products in the region,to drive local economic development,we will help implement the poverty alleviation and rural revitalization strategies in the region.