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云南德宏州林草种质资源分布特征研究

The Current Status and Protection Utilization of Forest and Grass Germplasm Resources in Dehong Prefecture, Yunnan Province

  • 摘要: 为掌握云南省德宏傣族景颇族自治州林草种质资源分布情况,基于全州林草种质资源普查结果,依托全国林草种质资源普查系统汇总全州物种信息,从林草种质资源状况、物种组成、空间分布等方面进行了分析。结果表明:共记录维管束植物3766种,隶属于230科1301属;调查登记古树名木398株、古树群21片;调查收集保存圃14个,收集保存种质资源550种723份。从科属组成看,豆科、兰科和蔷薇科物种数量居多。基于样线调查统计表明,平均每条样线记录物种94.3种,平均每千米样线记录物种26.31种。物种海拔集中分布于210~2000 m范围内;珍稀濒危物种以瑞丽市、盈江县、芒市分布较多。

     

    Abstract: To grasp the current status of forestry and grassland germplasm resources in Dehong Prefecture, Yunnan Province, this article analyzes the situation from various aspects such as the status of forestry and grassland germplasm resources, species composition, spatial distribution, and conservation and utilization strategies. This analysis is based on the results of the prefecture-wide forestry and grassland germplasm resources survey and relies on the national forestry and grassland germplasm resources survey system to summarize species information across the prefecture Analysis is conducted from the perspectives of forestry and grassland germplasm resource status, species composition, spatial distribution, and protection and utilization strategies. The results show that a total of 3,766 species of vascular plants belonging to 230 families and 1,301 genera were recorded in this survey; 398 ancient and famous trees and 21 ancient tree groups were registered; 14 collection and conservation gardens were surveyed, collecting and preserving 550 species and 723 accessions of germplasm resources. In terms of family composition, the number of species in the leguminous family (Leguminosae), orchid family (Orchidaceae), and the rose family (Rosaceae) is predominant. Statistics based on transect surveys indicate that, an average of 94.3 species were recorded per transect, and an average of 26.31 species were recorded per kilometer of transect. Species are concentrated at altitudes ranging from 210 to 2,000 meters; rare and endangered species are mainly distributed in Ruili City, Yingjiang County, and Mangshi City. Through systematic analysis, this article has grasped the distribution, protection, and utilization directions of forest and grass germplasm resources across the entire prefecture, providing a reference for comprehensively understanding the current status, scientific protection, and rational utilization of regional forest and grass germplasm resources.

     

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