Volume-Biomass Conversation Model of Moso Bamboo Shoots Based on Point Cloud Data

Zheng Yanglong; Xu Wenbing

doi:10.3788/LOP57.212803

Journals >Laser & Optoelectronics Progress >Volume 57 >Issue 21 >Page 212803 > Article

Laser & Optoelectronics Progress
Vol. 57, Issue 21, 212803 (2020)

Volume-Biomass Conversation Model of Moso Bamboo Shoots Based on Point Cloud Data

Zheng Yanglong¹ and Xu Wenbing^{1、2、3、*}

Author Affiliations

¹浙江农林大学省部共建亚热带森林培育国家重点实验室, 浙江杭州 311300

²同济大学测绘与地理信息学院, 上海 200092

³浙江同创空间技术有限公司, 浙江杭州 311300

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DOI: 10.3788/LOP57.212803 Cite this Article Set citation alerts

Zheng Yanglong, Xu Wenbing. Volume-Biomass Conversation Model of Moso Bamboo Shoots Based on Point Cloud Data[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212803 Copy Citation Text

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Fig. 1. Partial scanning areas. (a) Area 1; (b) area 2

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Fig. 2. Point cloud of moso bamboo shoot

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Fig. 3. Three-dimensional model of moso bamboo shoot

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Fig. 4. Correlation analysis of two calculative methods for volume of moso bamboo shoot

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Fig. 5. Changes of fresh weight and biomass

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No.	Volume /m³	Biomass /kg	No.	Volume / m³	Biomass /kg	No.	Volume / m³	Biomass /kg
1	0.007785	0.636	13	0.003627	0.237	25	0.018204	0.962
2	0.020480	1.723	14	0.021090	1.837	26	0.040821	3.753
3	0.003893	0.233	15	0.003555	0.254	27	0.015629	0.857
4	0.003797	0.234	16	0.001173	0.095	28	0.024701	1.239
5	0.024154	1.287	17	0.046217	2.250	29	0.017993	1.632
6	0.003001	0.217	18	0.010551	0.638	30	0.002474	0.183
7	0.000693	0.061	19	0.010565	0.596	31	0.030389	2.333
8	0.000724	0.058	20	0.001154	0.083	32	0.007548	0.456
9	0.000706	0.061	21	0.022276	1.211	33	0.007102	0.381
10	0.001409	0.100	22	0.015084	1.272	34	0.016068	0.913
11	0.002324	0.163	23	0.049856	3.838	35	0.072932	3.950
12	0.005206	0.375	24	0.003010	0.179

Table 1. Volume and biomass of moso bamboo shoot sample

Model formula	a	b	c	d	R²
W₁=aV₁	69.104				0.90
W₂=a+bV₂	-0.0091	69.438			0.90
W₃=c $V_{3}^{d}$			55.058	0.9549	0.98

Table 2. Parameters of volume-biomass conversion model and corresponding coefficients

Model	No.	Volume /m³	Biomass /kg	Calculatedvalue /kg	Absoluteerror /kg	Relativeerror /%
	1	0.007102	0.381	0.491	0.110	28.74
	2	0.007548	0.456	0.522	0.066	14.46
W₁=69.104V₁	3	0.016068	0.913	1.110	0.198	21.66
	4	0.030389	2.333	2.100	0.233	9.98
	5	0.072932	3.950	5.040	1.090	27.60
	1	0.007102	0.381	0.484	0.103	26.98
	2	0.007548	0.456	0.515	0.059	13.02
W₂=69.438V₂-0.0091	3	0.016068	0.913	1.107	0.194	21.25
	4	0.030389	2.333	2.101	0.232	9.93
	5	0.072932	3.950	5.055	1.105	27.99
	1	0.007102	0.381	0.489	0.108	28.22
	2	0.007548	0.456	0.518	0.062	13.68
W₃=55.058 $V_{3}^{0.9549}$	3	0.016068	0.913	1.066	0.153	16.78
	4	0.030389	2.333	1.959	0.374	16.03
	5	0.072932	3.950	4.519	0.569	14.41

Table 3. Calculated and measured values of biomass of moso bamboo shoot

Zheng Yanglong, Xu Wenbing. Volume-Biomass Conversation Model of Moso Bamboo Shoots Based on Point Cloud Data[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212803

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