石睿,张锡贵.贵州省沿河县耕地土壤元素地球化学特征及其特色耕地利用建议[J].贵州地质,2020,37(3):266-272
贵州省沿河县耕地土壤元素地球化学特征及其特色耕地利用建议
Geochemical Characteristics of Cultivated Soil Elements and Utilization Suggestions of Its Special Cultivated Land of Yanhe County,Guizhou Province
投稿时间:2020-04-26  
DOI:
中文关键词:  土壤  地球化学特征  因子分析  特色耕地  贵州沿河
英文关键词:Cultivated land  Soil  Geochemical characteristics  Factor analysis  Special cultivated land  Yanhe Guizhou
基金项目:
作者单位
石睿 贵州省地矿局101地质大队凯里556000 
张锡贵 贵州省地矿局101地质大队凯里556000 
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中文摘要:
      本文基于沿河土家族自治县耕地质量地球化学调查评价项目野外调查数据资料,分析了耕地土壤元素在不同成土母岩及不同土壤类型的地球化学特征。在摸清耕地土壤地球化学特征的基础上,利用SPSS统计分析软件,对全县表层土壤样品22个元素(指标)进行因子分析,得到有代表性的7个因子成分,分析不同元素组合的区域分布基于何种因素,并对各主因子进行了地质解释:F1主因子代表的变量与地质背景密切相关;F2主因子代表的变量与土壤中的As、Mo、Se与有机质易形成络合物有关;F3主因子代表的变量与区域上常形成与矿产有关的地球化学异常有关;F4主因子代表的变量可能与人工施肥及植被有关;F5主因子代表的变量与铜矿床有关;F6主因子代表的变量与分布的地层岩性有关;F7主因子代表的变量与萤石矿有关。根据全县富硒、富锗特色耕地分布特征及农产品优势,建议优先开发塘坝镇、新景镇等4个区域,为沿河县调整农业种植结构、发展现代山地特色优质农产品提供地球化学依据。
英文摘要:
      In this paper, according to the field investment information of the cultivated land quality geochemical survey and assessment project in Yanhe, the geochemical characteristics of cultivated soil element in different ore forming rock and different soil type are analyzed. For the geochemical characteristics of cultivated soil are known, the factor analysis is done for the 22 element associations in the surface soil samples of the county, 7 typical factors achieved. The reason of distribution area for different element association is analyzed, the geological interpretation is finished for each major factor. The representative variate of F1 has deep relation with the geological background, the representative variate of F2 has relation with As,Mo, Se in the soil and the organic matter easy to form complex compounds, the representative variate of F3 has relation with geochemical anomaly of mineral regionally, the representative variate of F4 has relation with artificial fertilization and vegetation, the representative variate of F5 has relation with copper deposit, the representative variate of F6 has relation with stratum lithlogy, the representative variate of F7 has relation with fluorite. According to the special Se-rich, Ge-rich cultivated land and distribution characteristics of cultivated land security type of the county, it’s suggested to develop Tangbazhen, Xinjingzhen and other 2 area. It will afford geochemical accordance for crop structure adjustment and modern mountain high quality agricultural product development.
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