基于AcrGIS中协同克里金插值的米槁品质适宜性分析及评价

为了解影响西南地区特色苗药米槁(Cinnamomum migao)果实品质形成的生态因素,为米槁选址栽培、野生种群抚育提供一定技术支持和理论依据.本文通过不同产地的22份米槁果实的总黄酮、粗脂肪、总糖、还原糖、多糖、粗多糖、可溶性多糖含量的测定结果,结合12个气候因子和11个土壤因子借助AcrGIS空间插值功能中的协同克里金法对米槁进行品质区划.结合12个气候因子和11个土壤因子借助AcrGIS空间插值功能中的协同克里金法对米槁进行品质区划.结果表明5个土壤因子和8个气候因子对米槁果实品质具有较大影响,适宜米槁果实化学物质积累的地域主要在广西壮族自治区境内百色、柳州、贺州以及广东省的云浮、梅州等地.综合考虑土壤、气候、药材质量与产量等因素,建议米槁在人工栽培选址时应当选择在气候相对适宜且土地肥沃区域的黔桂交界处的红水河河谷地带为宜.

Analysis and evaluation of quality suitability of Cinnamomum migao based on collocated Cokriging in AcrGIS

This study was conducted to explore the ecological factors that affect the fruit quality of Cinnamomum migao, a special seedling medicine in Southwest China, and to provide certain technical support, the theoretical basis for the site selection, cultivation and wild population tending. The results of total flavonoids, crude fat, total sugar, reducing sugar, polysaccharide, crude polysaccharide and soluble polysaccharide from 22 samples of C. migao fruits from different habitats were combined with 12 climatic factors and 11 soil factors to carried out the quality division of Migao by the collaborative Kriging method in the spatial interpolation function of AcrGIS. The results showed that 5 soil factors and 8 climatic factors had a significant effect on the quality of C. migao fruit. The areas suitable for chemical accumulation of Migao fruit are Baise, Liuzhou, Hezhou in Guangxi Zhuang Autonomous Region, Yunfu and Meizhou in Guangdong Province, etc. Comprehensively considering the factors, such as soil, climate, quality and yield of medicinal materials, it is suggested that the Hongshui River Valley zone at the junction of Guizhou and Guangxi with suitable climate and fertile land should be selected as the site for artificial cultivation.