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杉木以其生长快、材质好、干形直、尖削度小、经济效益高等特性而深受人们的欢迎,是当前我市速生丰产用材林的主要造林树种之一。我市杉木面积占全市有林地28.21％,蓄积量占全市总蓄积的47.03％。在当前,大力提倡营造速生丰产用材林,建立商品材基地的形势下,如何根据价值规律和市场调节作用,最大限度地利用资金、土地、人力资源来确定杉木人工林的轮伐和间伐期,是林业生产中迫切需要解决的一个问题。本文结合长沙地区的实际情况,运用数学优化方法,综合考虑资金、贴现率、土地多代利用、不同的立地条件类型、成本、市场价格等多
Cunninghamia lanceolata is widely welcomed by people because of its rapid growth, good material, dry stem, small taper, and high economic efficiency. It is one of the main afforestation species in our country. The area of cedar in our city accounts for 28.21% of the total forest area in the city, accounting for 47.03% of the total volume of the city. At present, vigorously promote the creation of fast-growing high-yield timber, the establishment of commodity timber base situation, how to use the law of value and market regulation, to maximize the use of funds, land, human resources to determine the Chinese fir plantation rotation and thinning period is An issue urgently needed to be solved in forestry production. Combining with the actual situation in Changsha area, using mathematical optimization method, taking into account the capital, discount rate, multi-generation land use, different types of site conditions, costs, market prices and more