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对14年生人工刺槐林的生物量生产力测定结果为:23、17与11地位指数级的现存量分别为179.91吨/公顷,100.80吨/公顷和81.35吨/公顷,其相同地位级指数的平均生产力为12.85吨/公顷·年,7.20吨/公顷·年和5.80吨/公顷·年,就豫东沙地来讲,生产力是比较高的。
Biomass productivity of 14-year-old artificial Robinia pseudoacacia forest was determined as follows: the existing stocks at the indices of status of 23, 17 and 11 were 179.91 tons / hectare, 100.80 tons / hectare and 81.35 tons / hectare, respectively. The average productivity of the same status grade index For 12.85 tons / ha · year, 7.20 tons / ha · year and 5.80 tons / ha · year, in terms of Yudong Sandy Land, the productivity is relatively high.