以１９９２ 年建立的宝应航运林场杨树纸浆试验林为基础，探讨了杨树无性系生物量生产的三维模拟模型。结果表明，至６ 年生时，３ 个无性系和４ 种密度间林分的生物量生产存在显著差异（α＝ ０ ．０５） ，除ＮＬ８０３５１ 外，最大的林分生物量生产均出现在密度为１ １１１ 株／ｈｍ２ 的林分中。通过对多种函数比较后得到，单株生物量生产可由渐近的ＢａｕｌｅＭｉｔｓｃｈｅｒｌｉｃｈ 函数描述；ＣｈａｍｐｍａｎＲｉｃｈａｒｄｓ 函数可用于计算ＢａｕｌｅＭｉｔｓｃｈｅｒｌｉｃｈ 函数中的渐近值。据此建立了由２ 个独立变量构成的三维函数模型，以估测ＮＬ８０３５１ 和Ｉ６９ 杨单株生物量生产，为林分生物量生产的模拟提供了一条新思路。 Based on the poplar pulp test forest in Baoying Shipping Forest Farm established in 1992, the three-dimensional simulation model of poplar clones biomass production was discussed. The results showed that there was a significant difference (α = 0 .05) in biomass production between the three clones and the four inter-density stands up to 6-year-old. The maximum stands biomass production except NL80351 was The density is 1 111 plants / hm2 in the stands. By comparing a variety of functions, the biomass per plant can be described by the asymptotic BauleMitscherlich function. The ChampmanRichardds function can be used to calculate the asymptotic values ​​in the BauleMitscherlich function. Based on this, a three-dimensional function model composed of two independent variables was established to estimate the biomass production of NL80351 and I69 poplars, which provided a new idea for the simulation of stand biomass production.