Service Function Value Assessment of Carbon Sequestration and Oxygen Release of Forest Vegetation in the State-Owned Forest Farms of Zhejiang Province

doi:10.13466/j.cnki.lyzygl.2022.S0.010

Abstract

Abstract:

Taking the state-owned forest farms in Zhejiang Province as the research object,the values of forest carbon sequestration and oxygen release service were evaluated by using the forest resource data and the measured data of the sample plots,with the biomass models and the carbon tax method.The results showed:The carbon storage of broad-leaved forest,coniferous and broad-leaved mixed forest,pine forest,Cunninghamia lanceolata forest and others in Zhejiang state-owned forest farms were 110.45 t/hm²,92.31 t/hm²,74.66 t/hm²,56.95 t/hm² and 44.69 t/hm² respectively.Those were significantly higher than the average carbon storage of Zhejiang forest vegetation (44.47 t/hm²).The state-owned forest farms,accounting for 3.69% of the total forest area in Zhejiang,contributed 5.01% amounts of CO₂ absorbed and O₂ released by forests in Zhejiang.The average amounts of CO₂ absorbed and O₂ released by forest vegetation of the state-owned forest farms of Zhejiang Province were 14.89 t/(hm²·a) and 10.87 t/(hm²·a) respectively.The value of carbon fixation and oxygen release was 67.81×10⁸ yuan/a.The value of carbon sequestration was 42.16×10⁸ yuan/a,and the value of oxygen release value was 25.65×10⁸ yuan/a.The order of the amounts and values of carbon sequestration and oxygen release was the broad-leaved forest>coniferous and broad-leaved mixed forest>pine forest>Cunninghamia lanceolata forest>others.

Key words: biomass, carbon storage, carbon sequestration and oxygen release, assessment, the state-owned forest farms in Zhejiang Province

CLC Number:

S718.5

JIANG Jingjian, LI Zirui, NIU Mingyue, HU Weijiang, ZHANG Yong. Service Function Value Assessment of Carbon Sequestration and Oxygen Release of Forest Vegetation in the State-Owned Forest Farms of Zhejiang Province[J]. FOREST RESOURCES WANAGEMENT, 2022, (zk1): 66-71.

Figures/Tables 5

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层次		松林	杉木林	阔叶林	针阔混交林	其它
乔木层	叶	10.35	9.56	14.78	12.57	8.80
	枝	14.37	14.45	33.14	23.75	15.85
	干	82.35	49.37	91.51	86.93	36.84
	根	24.91	27.41	63.79	44.35	16.92
	小计	131.98	100.79	203.22	167.60	78.41
灌木层		4.93	2.18	5.74	4.55	3.27
草本层		0.59	0.25	0.78	0.65	0.36
凋落物层		12.40	10.48	9.27	11.52	8.29
合计		149.90	113.70	219.01	184.32	90.33

层次		松林		杉木林		阔叶林		针阔混交林		其它
层次		碳储量/ ( t/hm²)	含碳率/ %	碳储量/ ( t/hm²)	含碳率/ %	碳储量/ ( t/hm²)	含碳率/ %	碳储量/ ( t/hm²)	含碳率/ %	碳储量/ ( t/hm²)	含碳率/ %
乔木层	叶	5.02	0.485	4.59	0.481	7.23	0.489	6.12	0.487	4.22	0.480
	枝	7.13	0.496	7.23	0.500	16.65	0.502	11.87	0.500	7.85	0.495
	干	42.20	0.512	25.46	0.516	47.41	0.518	44.72	0.514	18.74	0.509
	根	12.39	0.479	13.83	0.505	31.92	0.500	22.21	0.501	8.41	0.497
	小计	66.74		51.11		103.21		84.92		39.22
灌木层		2.20	0.446	0.98	0.448	2.60	0.452	2.11	0.464	1.54	0.471
草本层		0.27	0.451	0.11	0.442	0.35	0.448	0.30	0.455	0.16	0.458
凋落物层		5.45	0.440	4.75	0.453	4.29	0.463	5.28	0.458	3.77	0.454
合计		74.66		56.95		110.45		92.31		44.69

层次		松林	杉木林	阔叶林	针阔混交林	其它
乔木层	叶	1.67	1.53	2.41	2.04	1.41
	枝	0.19	0.36	0.40	0.30	0.31
	干	1.11	1.27	1.13	1.15	0.75
	根	0.33	0.69	0.76	0.57	0.34
	小计	3.30	3.85	4.70	4.06	2.81
灌木层		0.06	0.05	0.06	0.05	0.06
草本层		0.13	0.06	0.17	0.15	0.08
合计		3.49	3.96	4.93	4.26	2.95

植被类型	面积/hm²	吸收二氧化碳		释放氧气
植被类型	面积/hm²	实物量/(t/a)	价值量/(万元/a)	实物量/(t/a)	价值量/(万元/a)
松林	52805.10	675537.07	81064.45	493200.75	49320.08
杉木林	38605.10	560829.45	67299.53	409454.22	40945.42
阔叶林	65868.00	1191306.57	142956.79	869757.30	86975.73
针阔混交林	48604.90	759637.05	91156.45	554601.04	55460.10
其它	30161.70	326377.74	39165.33	238284.11	23828.41
合计	236044.80	3513687.87	421642.54	2565297.42	256529.74