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| Investigation and analysis of wild oil plant resources in Qiandongnan Prefecture, Guizhou Province |
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| KeyWord:Qiandongnan Prefecture oil plant resource survey characteristics analysis |
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| Abstract: |
| In order to provide basic data for the development and utilization of wild oil plant resources in Qiandongnan Prefecture, Guizhou Province, the wild oil plant resources in Qiandongnan Prefecture were investigated and its characteristics was analyzed by using the method of seasonal multiple line survey, key area sample survey and villagers interview. The results showed that the diversity of wild oil plant resources in Qiandongnan Prefecture was rich, and there were 297 species in 157 genera and 71 families, accounting for 65.74%, 39.55% and 36.49% of oil plant families, genera and species in China, respectively. The largest number of wild oil plants were single family and single genare in Qiandongnan Prefecture. In terms of life type, there were 157 species of arbor, accounting for 52.86% of the total species, which was dominant.The distribution characteristics of wild oil plant genera in Qiandongnan Prefecture was slightly dominated by temperate zone distribution, which was characterized by the transition from tropical zone to subtropical zone to temperate zone. In Qiandongnan Prefecture, wild oil plants mainly concentrated in the altitude of 400-1 000 m, and few species distributed above 1 000 m. The β diversity Cody index results showed that the Cody index of 600-800 m was the highest； and the wild oil plant biodiversity was obviously affected by altitude. There were more wild oil plants with high oil content in Qiandongnan Prefecture, and 64 species with oil content above 40%, accounting for 21.55% of the total species. It is recommended to do a good job in the cultivation and domestication of oil plants in Qiandongnan Prefecture, Guizhou Province, such as Sapium sebifera, Litsea pungens Hemsl, Pistacia chinensis, Gleditsia sinensis, Idesia polycarpa, Symplocos paniculata and other oil plants, and strengthen the protection of wild oil plant germplasm resources. |
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