GIS支持下的马龙县植烟土壤有效态微量元素评价  

GIS-based evaluation of available microelements in tobacco soil in Malong County

作　　者：李强[1] 周冀衡[1] 杨荣生 张拯研 解燕[1,2] 黄夸克 刘加红 张一扬[1] 

机构地区：[1]湖南农业大学烟草科学与健康重点实验室,长沙410128 [2]云南省曲靖市烟草公司,曲靖655000

出　　处：《中国烟草学报》2011年第4期56-61,共6页Acta Tabacaria Sinica

基　　金：国家烟草专卖局项目[曲靖市"天香"特色优质烟叶研究与开发(2009037)];湖南省研究生创新项目(CX2010B309);烟草工商研共建原料与品牌协同发展机制(ESTB)项目(曲靖市烟草公司)(110200801036)

摘　　要：采用GPS定位技术,对马龙县基本烟田进行大规模的土壤取样,研究了区域植烟土壤养分状况的总体特征、空间变异特征,并采用普通Kriging插值法绘制了微量元素空间分布图。结果表明:马龙县植烟土壤微量元素均表现为各向异性分布,7种有效态微量元素的空间变异均是由结构性因素和随机性因素共同作用的结果;土壤微量元素空间分布图显示,马龙县植烟土壤有效硼普遍极度缺乏,有效锌含量中等,有效铜、有效铁和有效锰含量十分丰富,土壤有效钼区域差异较大,占研究区28.02%的区域有效钼缺乏,土壤水溶性氯含量超过临界值(30mg·kg^(-1))的面积占研究区13.88%。144 tobacco soil samples were collected in Malong county. Descriptive analysis characteristics and spatial variation characteristics were studied, and spatial distribution maps of available microelements in soil were made with ordinary Kriging interpolation method. Results indicated that anisotropic structure of available microelements in tobacco soil varied and the spa- tial variability of 7 available microelements were caused by structural factors and random factors. Spatial distribution maps showed that available B was widely deficient in tobacco soil of Malong county, while available Cu, Fe, and Mn were extremely high in the whole extension, available Mo was deficient in part of the region with a percent of 28.02%, and water soluble C1 was higher than the critical value （30 mg·kg^-1） with a percentage of 13.88 % of the region

关 键 词：植烟土壤 有效态微量元素 GIS 地统计学 评价 

分 类 号：S572[农业科学—烟草工业]