Analysis of comprehensive benefits and influencing factors based on the combined economic value of carbon sequestration and timber benefits

doi:10.12302/j.issn.1000-2006.202009015

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (2): 205-212.doi: 10.12302/j.issn.1000-2006.202009015

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Analysis of comprehensive benefits and influencing factors based on the combined economic value of carbon sequestration and timber benefits

XUE Beibei(), TIAN Guoshuang^*()

College of Economics and Management, Northeast Forestry University, Harbin 150040, China

Received:2020-09-06 Accepted:2020-10-21 Online:2021-03-30 Published:2021-04-09
Contact: TIAN Guoshuang E-mail:njxue7938@163.com;13936161122@163.com

Abstract

Abstract:

【Objective】This study aimed to explore the optimal forest management for combined carbon sequestration benefits and timber values and provide a theoretical basis for improving the comprehensive benefits of forests.【Method】Based on the forest management cost data and harvest carbon model of Chinese fir and eucalyptus in the Shunchang County State-owned Forest Farm of Fujian Province, a modified Faustmann-Hartman model was used to predict the effects of forest management costs, carbon sequestration benefits, timber value, and interest rate fluctuation on optimal forest economic value.【Result】Under the existing conditions of constant forest management cost and management intensity, multiple-benefit management involving carbon sequestration may improve the optimal forest economic value, suggesting that the carbon market has certain investment benefits. If the silvicultural cost fluctuates from -40% to 40%, the comprehensive benefits of Chinese fir and eucalyptus will decrease from 40 402.33 to 5 599.02 yuan/hm² and 51 521.61 to 15 530.34 yuan/hm², respectively, and the rotation period of the two tree species will extend for two years. When the timber price increases from null to 500 yuan/hm², the comprehensive benefits of Chinese fir and eucalyptus will increase from 21 423.52 to 34 209.48 yuan/hm² and 25 845.13 to 92 644.11 yuan/hm², respectively. The optimal rotation period of Chinese fir will remain at 20 years; however, that of eucalyptus will decrease from 8 years to 6 years, being associated with rising timber prices. When the interest rate increases from 1% to 7%, the comprehensive benefit of Chinese fir will decrease from 383 745.32 to 890.14 yuan/hm², and its optimal rotation period will be shortened by 6 years. With the same interest rate change, the comprehensive benefits of eucalyptus will decrease from 254 648.72 to 16 728.99 yuan/hm², and its optimal rotation period will be shortened by one year. 【Conclusion】Carbon sequestration benefits and timber prices positively affect the comprehensive benefits of Chinese fir and eucalyptus, whereas interest rate and silvicultural cost have a negative impact. The sensitivity and order of the comprehensive benefits of Chinese fir and eucalyptus to the various economic factors differ; in terms of forest comprehensive benefits, eucalyptus is better than Chinese fir; however, the reverse is true in response to climate change.

Key words: carbon sequestration benefits, timber benefits, Faustmann-Hartman model, comprehensive benefits of forest land, Chinese fir, eucalyptus

CLC Number:

F326.24

XUE Beibei, TIAN Guoshuang. Analysis of comprehensive benefits and influencing factors based on the combined economic value of carbon sequestration and timber benefits[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(2): 205-212.

Figures/Tables 7

Table 1

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Fig.2

References 35

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树种 tree species	B_EF	W_D	C_F	R
杉木Chinese fir	1.53	0.31	0.50	0.24
桉树eucalyptus	1.48	0.58	0.47	0.20

树种 tree species	营林成本/(元·hm^-2) afforestation cost					采伐运输成本/ (元·m^-3) cutting and transportation cost
树种 tree species	第1年 the first year	第2年 the second year	第3年 the third year	第4年 the fourth year	小计 subtotal	采伐运输成本/ (元·m^-3) cutting and transportation cost
杉木Chinese fir	16 465.35	4 537.45	4 475.70	3 215.45	28 693.95	351.25
桉树eucalyptus	7 537.50	3 485.29	2 985.50	—	14 008.29	226.17

林龄/a tree age	碳储量/(t·hm^-2) carbon storage		木材效益/(元·hm^-2) timber benefits		碳汇效益/(元·hm^-2) carbon squestration benefits		综合效益/(元·hm^-2) comprehensive benefits
林龄/a tree age	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus
6	4.32	56.72	-79 860.39	23 797.75	524.62	6 889.64	-79 335.77	30 687.39
7	6.53	63.87	-59 815.51	25 633.53	662.15	6 477.74	-59 153.36	32 111.27
8	9.17	70.17	-43 439.99	25 845.13	792.20	6 064.28	-42 647.79	31 909.41
9	12.17	75.70	-29 860.90	25 100.59	910.39	5 661.29	-28 950.51	30 761.88
10	15.48	80.53	-18 557.21	23 796.21	1 014.04	5 275.54	-17 543.17	29 071.75
11	19.01	84.72	-9 178.28	22 176.33	1 101.80	4 910.65	-8 076.48	27 086.98
12	22.70	88.37	-1 461.07	20 395.24	1 173.36	4 568.26	-287.71	24 963.50
13	26.48	91.53	4 808.86	18 551.62	1 229.14	4 248.75	6 038.00	22 800.37
14	30.29	94.26	9 816.04	16 708.68	1 270.06	3 951.73	11 086.00	20 660.41
15	34.10	96.62	13 723.94	14 906.47	1 297.33	3 676.35	15 021.27	18 582.82
16	37.84	98.66	16 679.34	13 169.75	1 312.36	3 421.48	17 991.70	16 591.23
17	41.50	100.42	18 814.41	11 512.99	1 316.58	3 185.87	20 130.99	14 698.86
18	45.04	101.94	20 247.94	9 943.81	1 311.46	2 968.21	21 559.40	12 912.02
19	48.44	103.25	21 086.16	8 465.20	1 298.37	2 767.18	22 384.53	11 232.38
20	51.69	104.37	21 423.52	7 077.09	1 278.59	2 581.52	22 702.11	9 658.61
21	54.78	105.34	21 343.41	5 777.41	1 253.34	2 410.01	22 596.75	8 187.42
22	57.70	106.17	20 919.00	4 562.82	1 223.67	2 251.50	22 142.67	6 814.32

碳价格/(元·t^-1) carbon price	木材效益/(元·hm^-2) timber benefits		碳汇效益/(元·hm^-2) carbon sequestration benefits		综合效益/(元·hm^-2) comprehensive benefits		最优轮伐期/a optimal rotation age
碳价格/(元·t^-1) carbon price	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus
0	21 423.52	25 845.13	0	0	21 423.52	25 845.13	20	8
50	21 423.52	25 633.53	1 278.60	6 477.74	22 702.11	32 111.27	20	7
100	21 423.52	25 633.53	2 557.19	12 955.48	23 980.71	38 589.01	20	7
200	21 423.52	25 633.53	5 114.38	25 910.96	26 537.90	51 544.49	20	7
300	21 423.52	23 797.75	7 671.58	41 337.82	29 095.10	65 135.57	20	6
400	21 423.52	23 797.75	10 228.77	55 117.09	31 652.29	78 914.84	20	6
500	21 423.52	23 797.75	12 785.96	68 846.36	34 209.48	92 644.11	20	6

木材价格/ (元·m^-3) timber price	木材效益/(元·hm^-2) timber benefits		碳汇效益/(元·hm^-2) carbon squestration benefits		综合效益/(元·hm^-2) comprehensive benefit		最优轮伐期/a optimal rotation age
木材价格/ (元·m^-3) timber price	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus	杉木 Chinese fir	桉树 eucalyptus
20	39 838.54	49 580.50	1 278.60	6 889.64	41 117.14	56 470.14	20	6
10	30 631.03	37 754.19	1 278.60	6 477.74	31 909.63	44 231.93	20	7
0	21 423.52	25 845.13	1 278.60	6 477.74	22 702.11	32 111.27	20	7
-10	12 317.75	14 498.09	1 253.34	6 064.29	13 571.09	20 562.37	21	8
-20	3 292.09	3 914.64	1 253.34	5 661.29	4 545.44	9 575.92	21	9

Analysis of comprehensive benefits and influencing factors based on the combined economic value of carbon sequestration and timber benefits

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