Xinjiang Agricultural Sciences ›› 2023, Vol. 60 ›› Issue (4): 958-964.DOI: 10.6048/j.issn.1001-4330.2023.04.021
• Horticultural Special Local Products·Forestry·Facility Agriculture • Previous Articles Next Articles
QU Yanbin(), WANG Zhenxi(
), HU Tianqi, DONG Wei, CHEN Zhe
Received:
2022-09-05
Online:
2023-04-20
Published:
2023-05-06
Correspondence author:
WANG Zhenxi(1977-),male, native place: Xinjiang, professor, Research field: Forest ecosystem management, (E-mail)Supported by:
通讯作者:
王振锡(1977-),男,新疆喀什人,副教授,博士,硕士生导师,研究方向为林业3S技术及应用,(E-mail)作者简介:
曲延斌(1995-),男,新疆巴州人,硕士研究生,研究方向为林业3S技术及应用,(E-mail)947965614@qq.com
基金资助:
CLC Number:
QU Yanbin, WANG Zhenxi, HU Tianqi, DONG Wei, CHEN Zhe. Extraction of the height of Picea schrenkiana var. tianshanica and inversion of accumulation volume based on airborne lidar images[J]. Xinjiang Agricultural Sciences, 2023, 60(4): 958-964.
曲延斌, 王振锡, 胡天祺, 董巍, 陈哲. 基于机载激光雷达影像的天山云杉林树高提取及蓄积量反演[J]. 新疆农业科学, 2023, 60(4): 958-964.
模型 Model | 平方和 Sum of squares | df | 均方 Mean square | F | Sig. | R2 |
---|---|---|---|---|---|---|
回归 Return | 2 334.187 | 1 | 2 334.187 | 1 150.511 | 0.000 | 0.886 |
残差 Residual | 300.266 | 148 | 2.029 |
Tab.1 Variance test of tree height extracted from image and measured tree height
模型 Model | 平方和 Sum of squares | df | 均方 Mean square | F | Sig. | R2 |
---|---|---|---|---|---|---|
回归 Return | 2 334.187 | 1 | 2 334.187 | 1 150.511 | 0.000 | 0.886 |
残差 Residual | 300.266 | 148 | 2.029 |
方程Model | R2 | F | df1 | df2 | Sig. |
---|---|---|---|---|---|
线性 Linear function(D=1.191×H-0.437) | 0.901 | 891.645 | 1 | 98 | 0.000 |
对数 Logarithmic function(D=-40.431+21.547log(H)) | 0.878 | 702.104 | 1 | 98 | 0.000 |
倒数 Reciprocal function(D=41.808-341.66/H) | 0.79 | 368.721 | 1 | 98 | 0.000 |
二次 Quadratic function(D=-1.969+1.358×H-0.004×H2) | 0.902 | 446.552 | 2 | 97 | 0.000 |
三次 Cubic function(D=-1.913+1.348×H-0.004×H2-0.0009×H3) | 0.905 | 306.307 | 3 | 96 | 0.000 |
复合 Function of function(D=7.337×1.058H) | 0.884 | 743.861 | 1 | 98 | 0.000 |
幂 Power function(D=(H×1.282)0.872) | 0.908 | 972.173 | 1 | 98 | 0.000 |
S曲线 S-curve(D=exp(4.030-17.037/H)) | 0.867 | 640.363 | 1 | 98 | 0.000 |
增长 Increasing function(D=exp(1.993+0.056×H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
指数 Exponential function(D=7.337×exp(0.056×H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
Logistic (D=1/(0.136×0.946H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
Tab.2 DBH tree height model and parameter statistics
方程Model | R2 | F | df1 | df2 | Sig. |
---|---|---|---|---|---|
线性 Linear function(D=1.191×H-0.437) | 0.901 | 891.645 | 1 | 98 | 0.000 |
对数 Logarithmic function(D=-40.431+21.547log(H)) | 0.878 | 702.104 | 1 | 98 | 0.000 |
倒数 Reciprocal function(D=41.808-341.66/H) | 0.79 | 368.721 | 1 | 98 | 0.000 |
二次 Quadratic function(D=-1.969+1.358×H-0.004×H2) | 0.902 | 446.552 | 2 | 97 | 0.000 |
三次 Cubic function(D=-1.913+1.348×H-0.004×H2-0.0009×H3) | 0.905 | 306.307 | 3 | 96 | 0.000 |
复合 Function of function(D=7.337×1.058H) | 0.884 | 743.861 | 1 | 98 | 0.000 |
幂 Power function(D=(H×1.282)0.872) | 0.908 | 972.173 | 1 | 98 | 0.000 |
S曲线 S-curve(D=exp(4.030-17.037/H)) | 0.867 | 640.363 | 1 | 98 | 0.000 |
增长 Increasing function(D=exp(1.993+0.056×H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
指数 Exponential function(D=7.337×exp(0.056×H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
Logistic (D=1/(0.136×0.946H)) | 0.884 | 743.861 | 1 | 98 | 0.000 |
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