Ecological Factors Influencing the Occurrence of Macrofungi from Eastern Mountainous Areas to the Central Plains of Jilin Province, China

Summary

This research examined how different environmental factors affect mushroom growth and distribution across various landscapes in China’s Jilin Province. The study helps us understand how mushrooms adapt to different environments and what conditions they need to thrive. Impacts on everyday life: – Helps identify optimal conditions for mushroom cultivation and foraging – Provides insights for forest conservation and management practices – Improves understanding of ecosystem health indicators – Contributes to sustainable harvesting of wild mushrooms – Aids in predicting how climate change might affect mushroom populations

Background

Macrofungi play essential roles in forest ecological functioning through mycorrhizal symbioses with host plants and decomposition of organic matter. Their distribution and diversity are impacted by vegetation, topography, and environmental factors like precipitation and temperature. However, the composition and topographical changes of macrofungi between the eastern mountainous area and central plains of Jilin Province were previously unknown.

Objective

This study aimed to assess macrofungal diversity across six investigation sites representing three different topographical regions in Jilin Province, and analyze the relationships between macrofungi occurrence and environmental factors. The research also sought to understand the species composition transitions from eastern to central regions caused by changes in topography, vegetation, precipitation and temperature.

Results

A total of 691 species were identified, with Agarics being most common (60.23%) and Cantharelloid fungi least common (0.91%). Most shared genera were saprophytic. Alpha diversity analysis showed species diversity and richness were highest in Longwan National Forest Park at the genus level. The mycorrhizal macrofungi proportion revealed Quanshuidong Forest Farm had the healthiest ecosystem. Species composition similarity decreased in the transition from mountainous to hilly plains areas. Air humidity, precipitation, and wind velocity significantly impacted macrofungi occurrence.

Conclusion

The study found that vegetation type most strongly influenced macrofungi occurrence, while air humidity, precipitation and wind velocity were also significant environmental factors. The mycorrhizal to saprophytic ratios and species similarity decreased in the transition from mountainous areas to plains. These findings help elucidate macrofungi composition and their relationships with environmental factors and topography in Jilin Province, which is crucial for sustainable utilization and conservation.
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