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研究了江苏沿海滩涂较具代表性的银杏采叶园 (A)、银杏果 -叶 -农复合园 (B)、银杏材 -农复合园 (C)的生物生产力。结果表明 :各模式内不同作物个体生长存在极显著差异 ,银杏个体生长情况可用W =aXb 数学模型描述。植物器官生物量和生产力均以茎 (干 )最大。同一模式内 ,农作物生物量和生物生产力高于银杏 ,但收获指数低于银杏。三大模式中 ,模式C具有较高的生物量和生物生产力 ,但与B相差不显著。模式B、C有较大的生物生产力可归因于其较大的叶面积指数和适宜而稳定的小气候特征
The bioavailability of the representative ginkgo biloba (A), ginkgo biloba-leaf-agroforestry (B), ginkgo-agroforestry (C) in Jiangsu coastal beach was studied. The results showed that there were extremely significant differences in the growth of different crops within each pattern. The individual growth of Ginkgo biloba was described by W = aXb mathematical model. Plant organs have the largest amount of stem and stem biomass and productivity. Within the same model, crop biomass and bio-productivity were higher than those of ginkgo but the harvest index was lower than that of ginkgo. Among the three models, model C has higher biomass and biological productivity, but not significantly different from B. Modes B and C have greater bio-productivity due to their larger LAIs and suitable and stable microclimate characteristics