[1]杨 洋,尤龙辉,叶功富,等.沙质海岸基干林木麻黄幼林模拟抚育预测[J].福建农林大学学报(自然科学版),2021,50(02):206-215.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.02.009]
 YANG Yang,YOU Longhui,YE Gongfu,et al.Study on simulation tending and predicting of young Casuarina equisetifolia forest in backbone forest belt of sandy seashore[J].,2021,50(02):206-215.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.02.009]
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沙质海岸基干林木麻黄幼林模拟抚育预测()
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福建农林大学学报(自然科学版)[ISSN:1671-5470/CN:35-1255/S]

卷:
50卷
期数:
2021年02期
页码:
206-215
栏目:
林业科学
出版日期:
2021-02-15

文章信息/Info

Title:
Study on simulation tending and predicting of young Casuarina equisetifolia forest in backbone forest belt of sandy seashore
文章编号:
1671-5470(2021)02-0206-10
作者:
杨 洋12 尤龙辉23 叶功富2 聂 森2 程分生12 余锦林12
1.福建农林大学林学院,福建 福州 350002; 2.福建省林业科学研究院,福建 福州 350012; 3.福州市林业局自然保护地规划发展中心,福建 福州 350007
Author(s):
YANG Yang12 YOU Longhui23 YE Gongfu2 NIE Sen2 CHENG Fensheng12 YU Jinlin12
1.College of Forestry, Fujian Agriculture and Forestry University, Fuzhou Fujian 350002, China; 2.Fujian Academy of Forestry Sciences, Fuzhou Fujian 350012, China; 3.Planning and Development Center of Nature Reserves, Fuzhou Forestry Bureau, Fuzhou Fujian 350007, China
关键词:
木麻黄 冠幅胸径关系模型 胸径生长模型 郁闭度 间伐 预测
Keywords:
Casuarina equisetifolia crown diameter-DBH relation model DBH growth model canopy density thinning prediction
分类号:
S718.5
DOI:
10.13323/j.cnki.j.fafu(nat.sci.).2021.02.009
文献标志码:
A
摘要:
以平潭岛幸福洋6 a生木麻黄基干林为研究对象,选用6种典型的冠幅—胸径关系模型,采用决定系数(R2)、平均绝对误差(MAE)、剩余均方根误差(RMSE)和变异系数(CV)等检验指标,筛选最优模型,并利用Matlab GUI回调函数对模型进行程序设计,模拟预测基干林冠幅和胸径生长动态.结果表明:(1)木麻黄基干林最优冠幅—胸径关系模型为CW=-2.558+2.037 ln DBH;(2)经过计算机模拟抚育预测,林分株数密度分别为>3 000株·hm-2、2 000~3 000株·hm-2和<2 000株·hm-2的6 a生木麻黄基干林,最有利于木麻黄径向生长的模拟抚育间伐年限分别为6 a、4 a和5 a,平均胸径分别可以增加16.73%、24.03%和19.08%,平均冠幅可增长31.65%、11.89%和13.95%.
Abstract:
In order to explore the visual simulation of Casuarina equisetifolia trunk forest crown width-DBH growth dynamics, determine the best thinning years, promote the radial growth of C.equisetifolia, and improve the wind resistance performance of the basic trunk forest. Six typical models of crown width diameter-DBH were selected for 6 years old C.equisetifolia basal forest in Xingfuyang, Pingtan Island. The optimal models were selected by using determination coefficient(R2), mean absolute error(MAE), residual root mean square error(RMSE)and coefficient of variation(CV), the Matlab GUI callback function was used to design the model to simulate and predict the growth dynamics of crown width and DBH. The results show as below:(1)The optimal crown width-DBH relationship model of C.equisetifolia trunk forest was CW=-2.558+2.037 ln DBH;(2)According to computer simulation and tending prediction, the 6-year-old C.equisetifolia base forest with a density of 3 000 trees·hm-2 or more, 2 000~3 000 trees·hm-2 and 2 000 trees·hm-2 respectively, is the most beneficial for wood. The simulated tending and thinning years for radial growth of C.equisetifolia are 6 years, 4 years and 5 years, the average diameter at breast height can increase by 16.73%, 24.03% and 19.08%, and the average crown width can increase by 31.65%, 11.89% and 13.95%.

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备注/Memo

备注/Memo:
收稿日期:2020-08-27 修回日期:2020-10-27
基金项目:福建省科技重大专项(2018NZ0001-1); 福建省林木种苗科技攻关六期项目资助; 福建省森林培育与林产品加工利用重点实验室、福建省木麻黄工程技术研究中心资助.
作者简介:杨洋(1996-),男.研究方向:海岸带生态系统恢复.Email:1223755255@qq.com.通信作者尤龙辉(1987-),男,工程师.研究方向:沿海防护林及森林生态.Email:m378384996@126.com.
更新日期/Last Update: 2021-02-15