Habitat Investigation and Morphological Study of Helvella lacunosa in Shanxi Province
In order to clarify the relationship between the occurrence of Helvella lacunosa and the ecological environment and soil environ-ment,and then provide some reference for the domestication and cultivation of Helvella lacunosa,this study investigated the ecological environ-ment and climate environment where Helvella lacunosa occurred in Kelan,Shanxi Province,and determined the soil nutrient content,and car-ried out morphological analysis of Helvella lacunosa.The results showed that in Shanxi,Helvella lacunosa occurred in coniferous forests and sec-ondary forests after rainfall in late summer and early autumn.The temperature was between 10 and 27℃,and the soil pH was neutral and alka-line,and there was no significant difference between the rhizosphere soil and non-rhizosphere soil pH.At the same time,the contents of organ-ic matter,alkali-hydrolyzed nitrogen,available phosphorus and available potassium in rhizosphere soil were significantly higher than those in non-rhizosphere soil.Therefore,Helvella lacunosa was more likely to occur in neutral alkaline soil with high contents of organic matter,alkali-hydrolyzed nitrogen,available phosphorus and available potassium.