1. ForestryIt is one of the important components of China's national economy. Forestry refers to the cultivation and protection of forests, the development of ecological construction, the improvement of the ecological environment, and at the same time to obtain timber and other forest products, the use of the natural characteristics of forests, in order to play a protective role in the social production sector. It includes afforestation, silviculture, forest protection, forest harvesting and regeneration, collection and processing of timber and other forest products, etc. It includes two major sectors: forestry and forest industry. Its main task is to green the existing barren mountains and wastelands in a planned way and expand forest resourcesScientifically manage the existing natural forests and planted forests and rationally develop and utilize themWe should increase China's forest coverage rate and increase the production of timber and other forest by-products to meet the needs of industrial and agricultural production, national defense construction, and the people's livelihood. At the same time, we should give full play to the functions of forests in regulating climate, maintaining water and soil, conserving water sources, preventing wind and fixing sand, protecting farmland and protecting the environment, so as to ensure high and stable agricultural yields. Forestry and agriculture and animal husbandry are interdependent and equally important, and they are indispensable, and they are also one of the fundamental problems of the national economy. 
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2. Forest:Forest is a kind of plant group, which is a general term for the biota of trees, shrubs and plants, animals, and microorganisms that interact with them, as well as soil and climate. Forests not only provide timber and other forest products and forest by-products, but also have the functions of conserving water and soil, regulating climate, protecting farmland, health care, and consolidating national defense. Trees are the main body, including shrubs, herbaceous plants and other organisms, occupy a considerable space, grow densely, and can significantly affect the surrounding environment. 3. Forest stand:Characteristics of the internal structure of a forest tree. That is, there are forest lands with the same main investigation factors such as tree species composition, forest layer or forest facies, sparse density, age, origin, status level, etc., and are obviously different from the surrounding areas. It also usually refers to any specific area with trees. 4. Forests:A general term for all the trees in the forest. It is the main body that makes up the forest. It determines the appearance and internal basic characteristics of the forest, as well as the economic significance of the forest and the role of the forest in influencing the environment, and is the main object of work in forest management and management. According to the economic value and management significance, it is divided into main forest trees, that is, those composed of major tree species, and secondary forest trees, that is, those composed of secondary tree species. Forest trees also refer to trees that grow in the forest, as opposed to solitary trees. Forest trees also refer to trees that grow in a forest, as opposed to isolated trees. The trunks of forest trees are relatively straight and tall, and they can produce logs with good completeness. 5. Isolated wood:Trees growing alone in an open field. 6. Fusaki:It is a tree or shrub that accelerates the growth of the main forest trees, improves the development of dry shape, and improves the value of wood technology. 7. Seedlings:A general term for annual trees in forests. Slow-growing species that are 2-3 years old are also included. 8. Young trees:Trees that are not very old and grow relatively low. Generally, it is counted from 2-3 years old. 9, under the wood:A general term for shrubs in forests and tree species that do not grow up to the arbor layer under local conditions. It is one of the plant components that make up the forest. 10. Living ground cover:A general term for mosses, lichens, herbaceous plants, semi-shrubs, and small shrubs on woodland. As opposed to dead ground cover. It is one of the plant components that make up the forest. 11. Forestry land:Land dedicated to forestry production. These include woodland, shrubland, and sparse forest land, as well as wooded land and non-forested land that is not yet wooded. 12. There is forest landLand with forests (natural forests or plantations), bamboo forests and special economic forests (trees or shrubs) of different natures. Forested land is a major part of the forest resource area. 13. Sparse woodland:A category of forestry land. It is composed of tree species with canopy density of 010 － 0.19 of the woodlands. 14. Suitable woodland:A category of forestry land. All felled land, burned land, open land in the forest, and all barren mountains and wastelands that cannot be planted with crops but are suitable for forest growth are collectively referred to as suitable forest land. 15. Shrubland:Woodland consisting of shrub species, with the goal of cultivating shrubs or distributed outside the range of the tree, and for conservation purposes, with a coverage of 30% or more. There are two types of artificial shrublands and natural shrublands. 
Forestry survey, planning and design qualifications16. Logging sites:A category of suitable forest land. It refers to the traces of retained timber that do not meet the standard of sparse forest land and are not more than 5 years old after harvesting. 17. No forest landA category of suitable forest land. Land that is left open due to logging or other reasons and where no forest has grown. 18. Unforested afforestation land:The number of trees preserved after afforestation is greater than or equal to 85% of the designed number of afforestation plants, and the new afforestation land that has not yet closed but has the hope of becoming a forest (generally refers to the afforestation land less than 3 5 years after afforestation or less than 5 7 years after aerial seeding).