Study on Flora of National Key Preserved Agricultural Wild Plants in North China Region
[Objective]This article aims to analyze the elements of national key preserved agricultural wild plants in North China region, and to provide reference for protection and sustainable utilization of plant resources.[Method]On the basis of the geographical distribution of modern pteridophytes in China, the areal-types of seed plants and D. Szymkiewicz’s similarity coefficient in genera were analyzed.[Result]There are 44 species of national key preserved agricultural wild plants in North China, belonging to 39 genera and 24 families. They are mainly temperate in nature. At the generic level, various temperate genera, tropical genera and endemic genera to China contributed 72.22%, 13.89%and 13.89%of the total (excluding cosmopolitan genera). At the species level, various temperate elements, tropical elements and endemic to China contributed 54.76%, 2.38% and 42.86% of the total species. Compared with the flora of two neighboring areas, the flora is much more closely allied to northeast China than to northwest China.[Conclusion]There are 7 areal-types and 2 subtypes of families, 12 areal-types and 6 subtypes of genera and 6 areal-types and 3 subtypes of species in the geographical distribution.
North China regionnational key preserved agricultural wild plantsfloraprotection and utilization
国家科技期刊平台
NSTL
万方数据
维普
