Forest health Forest health mainly includes

(1) Modern forest not only has environmental and resource attributes, but also is the infrastructure of modern society. It should be considered as a structure, that is, the evaluation object (forest) should be concrete, and the space-time scale and functional connotation of the evaluated "forest" cannot be changed at will. (2) The connotation of forest health has the meaning of "restoration". (3) The modern concept of health takes into account the characteristics of forest ontology and social function, and emphasizes the limitation of forest function. (4) Consider both present performance (state) and internal potential (ability). (5) Emphasize the specificity of forest health value orientation, that is, under the condition of meeting the needs of nature and society for forest functions, the forest should be in a good state. This also determines that modern forest management has a great degree of particularity.