三明市耕地土壤交换性镁含量空间分布特征及影响因素分析  

Spatial Distribution Characteristics and Influencing Factors of Exchangeable Magnesium Content in Cultivated Land of Sanming City

作　　者：范铭丰 Fan Mingfeng(Soil and Fertilizer Technology Station of Sanming City,Sanming Fujian 365000;Fujian University Engineering Research Center of Cleaner Production Technology in Sanming University,Sanming FuJian 365000)

机构地区：[1]三明市土肥站,福建三明365000 [2]三明学院清洁生产技术福建省高校工程研究中心,福建三明365000

出　　处：《中国农学通报》2021年第29期71-77,共7页Chinese Agricultural Science Bulletin

基　　金：清洁生产技术福建省高校工程研究中心2017年开放课题“基于GIS的水稻高产化肥精量施用技术的研究”(B170008—10);国家测土配方施肥补贴项目“测土配方施肥推广和示范”(农办财[2006]11号),“测土配方施肥推广和示范”(农办财[2014]40号);福建省中青年教师教育科研项目“区域融合视野下虚拟仿真优质实践资源共享路径研究”(JAT190700/B201913)。

摘　　要：为了解三明市耕地土壤交换性镁含量空间分布特征及影响因素,利用三明市4833个土壤样品化验结果和相关数据,应用统计学和地理统计学方法对三明市耕地土壤交换性镁含量空间分布特征及其影响因素进行了分析。结果表明:三明市耕地土壤样品交换性镁平均含量处于中等水平,平均值为62.7 mg/kg。各县(市、区)土壤样品交换性镁含量差异达到显著水平。土壤交换性镁含量缺乏样品所占比例和缺乏的耕地面积所占比例分别达到44.15%和40.72%。除土壤类型分组的交换性镁含量差异不显著外,其他影响因素分组的土壤交换性镁含量差异均显著。因此施用有机肥、调节土壤pH、客土改良砂土类质地土壤、补充镁肥等可以作为调控三明市土壤交换性镁含量的主要措施。To find out the spatial distribution characteristics and influencing factors of exchangeable magnesium content in cultivated soil in Sanming City, based on the test results and related data of 4833 soil samples, the spatial distribution characteristics and influencing factors of exchangeable magnesium content in cultivated land soil in Sanming City were analyzed by statistical and geographical statistical methods. The results showed that the exchangeable magnesium average content of cultivated land soil samples in Sanming City was at medium level, and the average value was 62.7 mg/kg. The difference of exchangeable magnesium average content in soil samples from different counties(cities or districts) reached significant level. The proportion of samples with deficiency exchangeable magnesium content and arable land with deficiency exchangeable magnesium content accounted for 44.15% and 40.72%, respectively. Except that the difference of exchangeable magnesium content by soil type grouping was not significant, the differences of the soil exchangeable magnesium content by the other influencing factors grouping were significant. Therefore,applying organic fertilizer, adjusting soil pH, improving sandy soil texture and supplementing magnesium fertilizer could be the main measures to control soil exchangeable magnesium content in Sanming City.

关 键 词：三明市 耕地土壤 土壤交换性镁 空间分布 影响因素 

分 类 号：S572[农业科学—烟草工业] S159[农业科学—作物学]