福建省烟区土壤交换性镁的空间分布与酸化现状研究  

Research on spatial distribution characteristics of soil exchangeable magnesium and pH in the major tobacco-planting areas of Fujian province

作　　者：谢榕榕 雷仁清 邹珊瑚 曾文龙[3] 王雪仁[4] 徐辰生[5] 郑朝元 唐莉娜 李文卿 XIE Rong-rong;LEI Ren-qing;ZOU Shan-hu;ZENG Wen-long;WANG Xue-ren;XU Chen-sheng;ZHENG Chao-yuan;TANG Li-na;LI Wen-qing(College of Resources and Environmental Sciences/International Magnesium Institute,Fujian Agriculture and Forestry University,Fuzhou Fujian 350002;Tobacco Science Institute,Fujian Tobacco Monopoly Bureau,Fuzhou Fujian 350013;Longyan Tobacco Company of Fujian Province Tobacco Company,Longyan Fujian 364000;Sanming Tobacco Company of Fujian Province Tobacco Company,Sanming Fujian 365000;Nanping Tobacco Company of Fujian Province Tobacco Company,Nanping Fujian 353000)

机构地区：[1]福建农林大学资源与环境学院,国际镁营养研究所,福建福州350002 [2]福建省烟草专卖局烟草科学研究所,福建福州350013 [3]福建省烟草公司龙岩市公司,福建龙岩364000 [4]福建省烟草公司三明市公司,福建三明365000 [5]福建省烟草公司南平市公司,福建南平353000

出　　处：《中国土壤与肥料》2023年第2期25-32,共8页Soil and Fertilizer Sciences in China

基　　金：中国烟草总公司科技项目(110201902002);福建省烟草专卖局项目(20193500002400009)。

摘　　要：明确土壤交换性镁空间分布和土壤酸化现状,对福建省烤烟种植管理、精准施肥和可持续发展具有重要意义。基于2018年在福建省烟区水稻收割后采集的1199个表层土壤样本,综合采用全局Moran’s I指数、冷热点分析和Kriging插值等多种地统计学方法,从不同角度揭示福建省烟区土壤交换性镁空间分布和土壤酸化现状。结果表明:福建省烟区土壤交换性镁平均含量为70.10 mg/kg,84.66%土壤处于缺乏或极缺状态,空间分布上呈由南平-龙岩-三明递减的趋势,空间上主要呈现连片和斑块状镶嵌并存分布,南平市烟区土壤交换性镁含量最高,达81.06 mg/kg;福建省烟区土壤p H平均值为5.19,83.24%的土壤pH处于低或极低水平(pH<5.5),连片现象明显,三明烟区土壤酸化现状最为突出,pH为5.08;土壤交换性镁和pH在空间分布上呈聚集分布,空间自相关性显著;福建省烟区土壤酸化与缺镁现象仍较为突出。It has great significance to clarify the spatial distribution of soil exchangeable magnesium and soil acidification status which can serve as a basis of management,precision fertilization and sustainable development in flue-cured tobacco cultivation of Fujian province.Based on 1199 surface tobacco-planting soil samples collected at 2018 in Fujian province,the spatial distribution of exchangeable magnesium and soil acidification in Fujian province were revealed from different perspectives by using global Moran’s I index,cold and hot spot analysis and Kriging interpolation.The results showed that the average content of exchangeable magnesium in Fujian tobacco-planting soil was 70.10 mg/kg and among them 84.66%of the tobacco-planting soil was magnesium deficient or extremely deficient.The spatial distribution of exchangeable magnesium showed contiguous and patchy.Its value trend was Nanping>Longyan>Sanming and the highest content was 81.06 mg/kg in Nanping.The average pH value was 5.19 in the tobacco-planting soil of Fujian province and about 83.24%of the soils area the pH was at low or very low level(pH<5.5).The phenomenon of acid soil contiguous distribution was obvious.The soil acidification was most prominent in Sanming tobacco-planting soil area with 5.08 pH.The spatial distribution of exchangeable magnesium and pH was aggregated and the spatial auto-correlation was significant.Soil acidification and magnesium deficiency were still prominent in tobacco-cultivated areas of Fujian province.

关 键 词：烟区土壤 交换性镁 酸化 空间分布 

分 类 号：S572[农业科学—烟草工业] S153[农业科学—作物学]