摘要
本研究运用Logistic回归统计方法在地理信息系统技术支持下来确定影响牛蒡子分布各生态因子,建立牛蒡子的Logistic模型,预测了牛蒡子资源在我国分布情况。结果表明:(1)Logistic回归建立的模型满足统计学检验,能够有效对牛蒡子的资源分布进行有效预测。(2)预测结果为牛蒡子资源分布沿西南-东北方向呈现条带状分布,主要分布在东北、华北和西南地区。(3)部分区域与药典记载不一致,其原因可能为人为干扰和气候变化。
This article analyzed the ecological effect factors of burdock based on logistic regression approach and GIS,built logistic regression model,predicted the burdock resources distribution in China. The results showed that （1） The logistic model passed the statistic test. The model can predict the burdock resources distribution effectively. （2） The predicted results showed that burdock resources distribute from southwest to northeast. Northeast,north and southwest are main distribution areas. （3） The predicted results are different with harmacopoeia in some areas. The reason may be the human disturbance and climate change.
出处
《辽宁中医药大学学报》
CAS
2010年第2期15-18,共4页
Journal of Liaoning University of Traditional Chinese Medicine
基金
国家科技支撑项目(2006BAI09B02-6)
国家自然科学基金项目(40801069)
