【作者】 刘朝科； 汤术开； 李志伟； 曲平治； 徐文姗； 杜倩； 张倩； 王昌全；

【Author】 Liu Chaoke~1,Tang Shu-kai~1,Li Zhi-wei~1,Qu Ping-zhi~1,Xu Wen-shan~1, Du Qian~2,Zhang Qian~3,Wang Chang-quan~3 (1.Material Supply Center of China Tobacco Chuanyu Industrial CO.,LTD,Chengdu 610017,Sichuan,China; 2.Technology Research and Development Center of China Tobacco Chuanyu Industrial CO.,LTD,Chengdu 610066,Sichuan,China; 3.College of Resources and Environment,Sichuan Agricultural University,Chengdu,Sichuan 611130)

【机构】 川渝中烟工业有限责任公司物资供应中心； 川渝中烟工业有限责任公司技术研发中心； 四川农业大学资源环境学院；

【摘要】 采用地统计学和GIS技术相结合的方法,研究了凉攀植烟土壤有效态Fe、Mn的空间变异规律。结果表明:研究区植烟土壤有效态Fe、Mn含量较高,平均含量分别高达95.57mg/kg和49.30mg/kg。不同土类间有效态Fe、Mn含量差异较大,水稻土有效Fe含量最高,而黄壤有效Mn高于其他土壤类型。中海拔区域有效Fe、Mn高于低海拔和高海拔区。半方差分析表明,有效Fe、Mn具有中等强度空间相关性,受结构性和随机性因素的共同影响。克里格插值显示,有效Fe含量在冕宁、西昌、德昌一带较高;有效Mn则由北向南呈递增趋势。更多还原

【Abstract】 This study was conducted to investigate the spatial variability of available Fe and Mn content in Liangshan and Panzhihua tobacco growing areas using geostatistics and GIS.Results showed that the mean contents of soil available Fe and Mn are 95.57 and 49.30 mg/kg respectively,which are much higher man many other areas.Available Fe content of paddy soil was higher than all other soil types,while the yellow soil had the largest available Mn content among all soil types.Both available Fe and Mn contents in middle elevation area are higher than that in low and high elevation areas.Semivariogram analysis showed mat soil available Fe and Mn showed moderate spatial autocorrelations,which were caused by both structural factors and random factors.Kriging interpolation map indicated that the content of available Fe was higher in Mianning,Xichang and Dechang,while available Mn showed an increasing trend from north to south.更多还原