北华大学学报（自然科学版）2016，Vol.17Issue(3)：308-314,7.DOI:10.11713/j.issn.1009-4822.2016.03.006
早春类短命植物生物量研究（Ⅳ）--荷青花生物量及其模型构建
On Spring Ephemeral Plants Biomass(Ⅳ)---Biomass and Its Model Building of Hylomecon japonica
摘要
Abstract
Based on the value of Hylomecon japonica in the medicine,ornamental and nutrient cycling of forest ecological system, the research obtained its biomass, distribution characteristics, and constructed the single-element and multiple regression model for its total biomass with the growth indexes as the independent variable, by taking the whole plant harvest sampling method after sorting,drying,weighing and data statistics. The results showed that its growth indexes and biomass allocation varied remarkably from individuals,but its average height and root-shoot ratio changed smaller, when Hylomecon japonica association came to the withholding vegetative growth period. There was a certain supply constraint in crown width,the individual number and number of flowers and fruit of cluster supported by underground part, which had a significant positive correlation with the underground biomass. Although growth indexes of Hylomecon japonica were different with various degrees,but its root-shoot ratio difference was insignificant, confirming the Hylomecon japonica had the ability of resource allocation in weighing limited photosynthetic. It was relatively better to build the multiple linear regressions than singe-element regression;however,considering too many independent variables could cause some system errors, we selected a better fitting equation with individual number and number of flowers and fruit of cluster as independent variables.关键词
早春类短命植物/荷青花/生物量/分配比例/模型构建Key words
spring ephemeral plants/Hylomecon japonica/biomass/distribution proportion/model building分类
农业科技引用本文复制引用
范春楠,程岩,郑金萍,刘彬,赵哲..早春类短命植物生物量研究（Ⅳ）--荷青花生物量及其模型构建[J].北华大学学报（自然科学版）,2016,17(3):308-314,7.基金项目
国家自然科学基金项目(31400387) （31400387）
