Recovery and Preservation Methods of Small Wild Population of Zingiber officinalis in Zhoushan

Abstract

The invention discloses a method for recovering and preserving a wild small population of neolitsea sericea serving as a rare plant. The method comprises the steps: selecting a neolitsea sericea community remained on a coastal mountainous region in the east of Zhejiang to survey each wood on a typical sample plot; calculating importance values and age structures of species by using a statistical sampling method and a population statistical method; creating an optimal adaptable rehabilitation environment according to the dynamic adaption characteristic of the neolitsea sericea on different landsite types and at community development stages for the environment; optimizing the age structure, space distribution, species composition and land site condition of a popularization by using technical means such as mature tree rejuvenation, young seedling transplanting and updating, interfering wood thinning for tending and forest stand management so as to remarkably promote the survival and growth of small population of the neolitsea sericea, restore the structure of the small population to the maximum extent on the premise of finitely protecting plants and meet a production demand. By usingthe method, the growth vitality and stability of the small population of the rare plant are improved; and the method has a wide application prospect in preservation and ecological rehabilitation of the small population of the rare plant.

Description

technical field [0001] The invention relates to a method for restoring and preserving a small wild population of rare plants, in particular to a method for restoring and preserving a small wild population of Zhoushan xinmujiangzi. Background technique [0002] Small wild populations of rare and endangered plants are a precious heritage of natural history evolution and an important part of national nature protection. Restoring and preserving small populations of rare wild plants is of great scientific, cultural and economic significance. Zhoushan Xinmu Jiangzi (Neolitsea sericea) is an evergreen tree of Lauraceae, which was designated as a national second-level key protected wild plant in the "National Key Protected Wild Plant List (First Batch)" approved by the State Council in 1999. Because the young leaves, twigs and buds of the tree have golden silk-like soft hairs, they are golden in the sun, like the light of Buddha, and the green leaves in severe winter are full of red...

AI Technical Summary

Problems solved by technology

The content of this traditional management method is single, and the natural growth and decline dynamics of the target small population and the protection potential of newer offspring are often not considered in the restoration and preservation of the small plant population, let alone the succession and development of the entire forest community, different tree species, site habitats and soils. Nutritional and other environmental adaptability differences and other issues

This pursuit of long-term ban and natural recovery has led to problems such as low preservation rate of rare plant populations, slow growth, difficult regeneration, serious pests and diseases, and barren forests in the later stage of the protected area.