A provisional growth model with a size–density relationship for a plantation of Paraserianthes falcataria derived from measurements taken over 2 years in Pare, Indonesia
A provisional growth model with a size–density relationship for a plantation of Paraserianthes falcataria derived from measurements taken over 2 years in Pare, Indonesia
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根据印度尼西亚 Pare 两年多的测量结果，建立了一个具有尺寸与密度关系的 Paraserianthes falcataria 种植园的临时生长模型
DOI：
10.1007/s10310-007-0007-y
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发表时间：
2007
影响因子：
1.5
通讯作者：
O. Chigira
中科院分区：
文献类型：
--
作者：
S. Kurinobu;Daryono Prehatin;Naiem Mohanmad;K. Matsune;O. Chigira
镰状寄生蜂种植园的生长模型是根据对印度尼西亚帕雷 2 年时间里 32 个永久地块的测量而临时得出的。该模型首先使用多态位点指数方程预测身高增长。然后计算与密度相关的生长和死亡率，即直径和林分密度，以满足倒数方程和自疏伐方程的数学关系，这两个方程都基于本研究中确定的斜率为-1.759的最大尺寸-密度线。对直径和林分密度的累积预测，从种植后 3、4 和 5 年的三个年龄组中的每一个开始，一直持续到接下来的 2 年，与年龄组平均值的观察结果非常吻合。 7 年树龄的看台是个例外，虽然处于边缘状态，但最接近 8 年的轮换年龄。该模型很好地描述了三个年龄组之间的高度/直径关系对比，并且发现预测的基础生长面积与观察结果相当吻合。这些结果表明，这里提出的生长模型对于应用 P 人工林的尺寸-密度控制具有良好的潜力。镰刀菌。然而，可能需要额外几年的测量才能得出更准确地预测自转年龄时直径大小的模型。
A growth model for a plantation ofParaserianthes falcatariawas provisionally derived from measurements of 32 permanent plots taken over a period of 2 years in Pare, Indonesia. This model first predicts height growth with the polymorphic site index equation. Then density-related growth and mortality, that is, diameter and stand density, are calculated to satisfy the mathematical relationship for the reciprocal and self-thinning equations, both of which were based on the maximum size–density line with the slope of −1.759 identified in this study. Cumulative predictions on diameter and stand density, starting with each of three age classes, 3, 4, and 5 years after planting, and continuing for the next 2 years, agreed well with the observations of age-class mean. An exception was for stands that were 7 years old, which were marginal, but closest to the rotation age of 8 years. Contrasting height/diameter relationships among the three age classes were described reasonably well with this model, and the predicted basal growth area was found to agree fairly well with observations. These results suggest that the growth model presented here has good potential for applying size–density control for plantations ofP. falcataria. However, measurements for an additional few years might be necessary to derive a model that will more accurately predict diameter size at the rotation age.