长白山区人参栽培气候生态适应性及其分布的研究

本文分析了人参高产栽培的气候指标,确立了鉴定长白山区人参栽培气候生态适应性的隶属函数和描述人参综合气候适宜度空间分布的数学模型,并分析了人参适宜栽培海拔高度的地域变化。采用地理细网格场分析方法,计算、分析了人参栽培气候适宜性的地域性差异。结果表明,长白山区人参栽培的气候生态适应性有很大差异。

A STUDY ON THE CLIMATIC-ECOLOGICAL RESOURCES SUITABILITY OF THE PANAX GINSENG CULTURE AND ITS GEOGRAPHIC DISTRIBUTION IN THE CHANGBAI MOUNTAINS AREA

In this paper, the climatic-ecological factors and their optimum indices having an effect on Panax ginseng yield are studied. The factors are annual mean temperature, annual mean rainfall, the mean temperature of the hotest month, annual mean air relative humidity, and the length of the frostless season. Their optimum indices are 2.6℃, 778.7mm, 19.6℃, 70.6%, and equal to or more than 145 days respectively. The dependent functions μ(x_i)] of the factors to the optimum indices are decided, and the regression model to describe the geographic distribution of the integrated climatic-ecological suitability is established. The geographicdistribution of the μ of various parts of the Changbai mountions area and the optimum culture elevation of Panax ginseng are analyzed according to the model and the geographic network method. And then five climatic-ecological area for the Panax ginseng culture are demarcated in the Changbai mountains area of eastern Jilin Province. They are the optimum area, the suitable area, the comparatively suitable area, the comparatively unsuitable area and the unsuitable area.