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抚育间伐的调查设计,是认真落实“以营林为基础,采育结合,造管并举”方针的重要措施。是保证抚育质量的关键性一环。林业不断发展,生产要革命,技术要革新。几年来,我们在调查设计上,采用如下几点做法:一、林木分级:划分林木等级,是为了具体了解林木的生育情况,落实“四次四留”的原则,这在调查设计中是很重要的。我们根据次生林具有相嵌性、从生性、异令性和树种多样性,采取“树群林木分级法”来划分林木等级的。
Investigation and design of tending and thinning is an important measure to conscientiously implement the guideline of “Combining production and cultivation, combining management with production” based on the management of forests. Is to ensure the quality of tending a key link. The continuous development of forestry, production to revolution, technology innovation. In recent years, we investigated and designed the following practices: 1. Grading of forest trees: Grading of forest grading is to understand the tree-planting situation in detail and to implement the principle of “four four-stay”, which is very important in the survey and design important. According to the secondary nature of the secondary forest, we adopted the “Tree Classification Method” to divide the tree species according to the nature, diversity and tree species diversity.