山东国土资源2026，Vol.42Issue(3)：32-40,9.DOI:10.12128/j.issn.1672-6979.2026.03.005
安徽凤阳沿淮乡镇土壤养分地球化学特征研究及综合评价
Study on Geochemical Characteristics and Comprehensive Evaluation of Soil Nutrients in Townships along Huaihe River in Fengyang County in Anhui Province
摘要
Abstract
Based on geochemical survey data of land quality with the scale of 1∶500000,taking the surface soil of towns along Huaihe river in Fengyang county as the research object,the content characteristics of nutrient indicators,such as nitrogen,phosphorus,potassium and organic matter in the study area have been systematically analyzed,and geochemical distribution and allocation rules have been summarized.Based on this,comprehensive geochemical grade of soil nutrients has been divided.It is showed that there are significant differences in spatial distribution of soil nutrients in Huaihe river area,with a relatively uni-form distribution of the content of K2O.The coefficient of variation of P,N,organic matter and available nutrients is greater than 0.3 with an uneven distribution.Due to the flooding environment of Huaihe river and the influence of river and lake sediments,the soil in the study area shows a characteristic of insuffi-cient total nutrient elements but strong ability to transform available forms.As showed by comprehensive evaluation of soil nutrient geochemistry,soil nutrients in this region are mainly moderate to relatively defi-cient,and account for as much as 85.03%.The research results can provide references for land resource planning and sustainable agricultural development in Huaihe river region.关键词
地球化学评价/养分元素/表层土壤/沿淮地区/安徽凤阳Key words
Geochemical evaluation/nutrient elements/surface soil/regions along Huaihe river/Fengyang county in Anhui province分类
资源环境引用本文复制引用
敬海霞,黄金山,汪晶,施云龙,吴新泉,葛旭..安徽凤阳沿淮乡镇土壤养分地球化学特征研究及综合评价[J].山东国土资源,2026,42(3):32-40,9.基金项目
安徽省自然资源厅、安徽省财政厅:安徽省公益性地质工作项目"凤阳县土地质量地球化学调查评价"(项目编号:2023-g-1-16) （项目编号:2023-g-1-16）
