| 变时相生长模型技术及其在小班数据更新中的应用 |
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| 引用本文： | 项小强,王金治,查印水. 变时相生长模型技术及其在小班数据更新中的应用[J]. 浙江林学院学报, 1999, 16(3): 279-282 |
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| 作者姓名： | 项小强 王金治 查印水 |
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| 作者单位： | [1]国家林业局华东林业调查规划设计院 [2]福建省永安市林业委员会 |
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| 基金项目： | “九五” 浙江省科学技术委员会重点资助 |
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| 摘 要： | 小班数据更新是地方森林资源监测和资源档案管理的需要,实现它的必要条件是建立小班动态数据库和建立小班数据更新模型。本文着重对后者的现实林分建模中每年变化的大量的部分,采伐的问题处理,根据微变化调整原理,提出变时相生长模型技术,从而消除了误差逐年积累和放大的问题,提高了小班数据更新的可靠性。
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| 关 键 词： | 小班 数据更新 动态数据库 变时相生长模型 |
Phase varied growth model technique and its applications in subcompartment data updating |
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| XIANG Xiao qiang ,WANG Jin zhi ,ZHA Yin shui ,LI Yue qing. Phase varied growth model technique and its applications in subcompartment data updating[J]. Journal of Zhejiang Forestry College, 1999, 16(3): 279-282 |
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| Authors: | XIANG Xiao qiang WANG Jin zhi ZHA Yin shui LI Yue qing |
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| Affiliation: | XIANG Xiao qiang 1,WANG Jin zhi 1,ZHA Yin shui 1,LI Yue qing 2 |
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| Abstract: | Subcompartment data updating is required in local forest resource monitoring,and the prerequisits of its realization are to build up both dynamic database and data updating models for the subcompartments.This paper stresses on the latter in which the modelling of real forest stands is dealt with and a great amount of partial cutting took place among them.Based on little variation adjustment,a phase varied growth model technique is presented.And through its use,annually accumulated and magnified errors is removed and the reliability of subcomparment data updating is improved. |
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| Keywords: | sublot data updating dynamic database forest stand standing crop mathematical models phase varied growth models modelling data source |
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