Abstract:According to The Third National General Survey and Collection Action of Crop Germplasm Resources in Fujian Province, the species, distribution and diversity of crop germplasm resources in the province were sorted out. A total of 6235 pieces of data on crop germplasm resources of local varieties and wild relatives were collected in the province. 1517 pieces of vegetables, grains, fruit trees, cash crop, forage and green manure accounted for 33.57%, 25.91%, 24.35%, 14.59% and 1.57% respectively; All resources belong to 83 families, 228 genera, and 314 species, with oligogenus families accounting for 55.42% of the total number of individuals, accounting for 74.06% of the total number of individuals in this level. The leguminous germplasm resources have the highest variety, accounting for 16.04% of the total. The diversity of crop germplasm resources is driven by different regions and altitudes, and the overall number of crop resources shows a decreasing trend with increasing altitude, with the highest number of resources distributed within the range of 0~200 meters above sea level. There are 24 families of crops distributed in all 6 altitude gradients, and the number of crops in the Saponiaceae, Camelliaceae, and Rutaceae families is greatly affected by altitude. The Shannon Wiener diversity index in Sanming and Longyan regions shows a significant positive correlation, while the Brillouin richness index in Sanming and Longyan, Zhangzhou and Putian regions shows a significant positive correlation; The diversity and richness of germplasm resources in Sanming and Longyan are relatively high. The Pielou evenness index in Putian and Longyan regions shows a significant negative correlation, while the Simpson dominance index and Pielou evenness index in Quanzhou and Fuzhou show a significant positive correlation. The diversity of crop germplasm resources in coastal and mountainous areas is influenced by environmental and regional factors, presenting different response strategies.