Forest germplasm refers to the total genetic material of forest trees, which can also be called genetic resources. It is the basis for tree breeding and improvement. For forest development, the richer the forest germplasm resources, the easier it is to obtain good varieties through selection, thus maintaining the diversity of forest trees. Therefore, the protection of forest germplasm resources is the foundation for the protection of the diversity of forest trees, as well as the guarantee of sustainable human development and the important content of national rejuvenation and development. The forest germplasm resource conservation library is an ideal facility for the protection of forest germplasm resources and facilities. The use of this facility can provide technical guarantee for the long-term safe preservation of forest germplasm resources.
In general, the conservation of forest germplasm resources can be mainly divided into three aspects. The first is in situ conservation, that is, direct protection of these forest germplasm resources in natural sites, forest parks and wetlands and other places, but this Protection methods are easily affected by natural disasters, human disturbances, and economic development. Therefore, it is difficult to avoid the destruction and loss of species in protected areas. The second is the protection of different places. This method saves forest germplasm resources in this area. The places outside the original ecological growth areas of the species are usually conserved through the resources collected in the germplasm conservation garden, the genetic resources of the elite breeding base, the botanical gardens, the arboretum, etc., as a backup to preserve some of the possible natural resources. Or in the human-dominated ecosystem, the third is the protection of facilities, and the ideal facility to be used is the conservation of forest germplasm resources, which is a way to control the environment to eliminate external environmental pressure and damage. Effective preservation of germplasm resources in the library. Forest germplasm resource conservation libraries are often used to protect the endangered, endemic and significant socio-economic value of forest species, and have played an important role in practical work.
Forest germplasm resources are the carriers of genetic diversity. They are the products of long-term natural selection and have a wide range of genetic variation. They are the basis for genetic improvement of forest trees. The use of forest germplasm resource conservation repositories in combination with the other two conservation methods to preserve these rich tree germplasm resources and achieve long-term use and development will certainly create greater value for China's agricultural and forestry development and realize The economy and the environment develop simultaneously, and a harmonious society of resource conservation and environment-friendly is built in an all-round way.
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