Growth and yield modelling of Acacia mangium in Colombia
Growth and yield modelling of Acacia mangium in Colombia
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哥伦比亚马占相思的生长和产量模型
DOI：
10.1007/s11056-007-9056-5
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发表时间：
2007
期刊：
影响因子：
2.2
通讯作者：
Jorge Ignacio Valle
中科院分区：
文献类型：
--
作者：
Danny Alexander Torres Vélez;Jorge Ignacio Valle
为了研究哥伦比亚加勒比海地区马占相思的生长和产量，对总蓄积量和地上粗根生物量与树高直径的异速生长方程进行了拟合。利用von Bertalanffy的生长模型和59，0.1公顷样地(0.55-9.55年生)，建立了6年基龄的立地指数(SI)曲线。然后，利用状态空间法建立了林分断面积、蓄积量和生物量的生长和收获模型。结果表明，芒果是一种非常有希望用于木材生产、大气碳去除和土壤修复的树种，因为即使在采矿退化的土壤中，它也生长得非常快。平均而言，它的高度在3年内达到15米。然而，早期和反复的间伐，加上牲畜入侵非常年轻的贫瘠种植园的初始死亡，导致产量相对较低。
To study the growth and yield ofAcacia mangiumin the Caribbean region of Colombia, allometric equations of total volume and aboveground plus coarse roots biomass were fitted as a function of the tree’s diameter at breast height (dbh). The von Bertalanffy’s growth model and 59, 0.1 ha plots (0.55–9.55 years old) were used to develop site index (SI) curves at 6 years base age. Then, using the state-space approach, stand growth and yield models were developed for basal area, volume and biomass. The results show thatA. mangiumis a very promising species for timber production, atmospheric carbon removal and soil restoration because it grows very fast even in mining degraded soils. On average sites it reaches 15 m in height in 3 years. However, early and reiterated thinning coupled with initial mortality by cattle invasion of the very young understocked plantations are producing relatively low yields.