关键词: 水杨酸, 水杨酸, 高温, 低温, 根系活力, 根系形态指标

Abstract: Chuxiong is a typical low-latitude plateau semi-arid subtropical monsoon climate zone in central Yunnan. It has strong climate tridimensional character, rich light and heat resources, obvious wet and dry seasons, moderate rainfall during the rainy season, and provides high quality habitat for wild edible fungi. In order to reveal the climate difference between Chuxiong and other wild edible fungi zones of Yunnan Province and the country, the author selected air temperature, ground temperature, precipitation, sunshine, humidity (from May to October) and altitude from 125 counties in Yunnan and some wild edible fungi zones of the country, and conducted the principal component analysis of multiple-factor influence, calculation of the dryness and single factor analysis, then made an interpolation with ArcGIS. The results showed that during the initial transition stage of wild edible fungi mycelium to a fruiting body, Chuxiong had enough light and heat and an obvious dry-wet conversion. The harvest stage of fruiting body had a moderate heat and rainfall with a small amplitude of variation, large temperature difference between day and night, a counterchange of sunny and rainy and a moderate light and humidity (during May, June, July to September, the average temperature were 20, 21, 20℃, the precipitation were 80, 150, 480 mm, the relative humidity were 67%, 77%, 83% and the sunshine duration were 220, 160, 380 h). There was a good corresponding relationship between the habitat and the high richness and yield in Yunnan wild edible fungi zone. The results also verified the reliability and practicability of using principal component analysis to analyze the climate and habitat in low-latitude plateau with air temperature, ground temperature, precipitation, sunshine, relative humidity and altitude as influencing factors.