杨树烂皮病空间格局及抽样技术的研究

Spatial Pattern and Sampling Technique of Poplar Cytospora Canker

用Taylor幂法则和Iwao回归研究了杨树烂皮病的空间格局,认为其格局是以感病杨树个体群为基本分布成份的均匀分布,并从感病株数、病情指数两个水平给出了最适抽样、数据代换、序贯分析的模型群。

Describes the spatial pattern of Cytospora chryansperma by Taylor power rule and I-wao regression. The pattern was well distributed based on canker tree groups as basic distributial element. Relative mathematical models of best sampling ,data transformation and order relative analyzing were drown out on the level of incidence and disease index.