[1]张志伟,亢新刚,杨华,等.长白山3个主要针叶树种材积方程的研究[J].西北林学院学报,2010,25(04):144-150.
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长白山3个主要针叶树种材积方程的研究
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第25卷
期数:
2010年04期
页码:
144-150
栏目:
OA
出版日期:
2010-07-31

文章信息/Info

作者:
张志伟;亢新刚;杨华;冯启祥;姚景春;
北京林业大学省部共建森林培育与保护教育部重点实验室;吉林省汪清林业局;
关键词:
胸径树高精度解析木
摘要:
基于长白山区933株云杉、冷杉和红松数解析木的胸径、树高、各区分段断面积和长度等数据,建立3个树种的最优材积公式。使用7个一元材积方程、19个二元材积方程,以及由二元推导一元的材积方程,分别模拟了每株树的材积,与采用中央断面求积法计算的每株解析木实际材积进行对比。再综合对比各方程的残差、MD和均方根差RMSE,确定3个树种的最优材积方程。得到其最优一元材积方程,适用于中国东北部的长白山地区;二元材积方程适用于更大地域范围,适合在胸径和树高数据都有的情况下使用;由二元推导的一元材积公式,适用于区域内无一元材积方程且没有树高数据的地区。

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备注/Memo

备注/Memo:
林业公益性行业项目(200804027);
更新日期/Last Update: 2010-08-20