Research on carbon storage of tea trees and carbon footprint of tea products in Lishui City, Zhejiang Province, China

doi:10.3969/j.issn.1004-1524.20250206

Acta Agriculturae Zhejiangensis ›› 2026, Vol. 38 ›› Issue (2): 339-350.DOI: 10.3969/j.issn.1004-1524.20250206

• Environmental Science • Previous Articles Next Articles

Research on carbon storage of tea trees and carbon footprint of tea products in Lishui City, Zhejiang Province, China

DONG Ruili¹(), GU Lei², ZHANG Meng¹, ZHOU Guomo¹^,^*()

1. College of Environment and Resources, College of Carbon Neutrality, Zhejiang A&F University, Hangzhou 311300, China
2. College of Economics and Management, Zhejiang A&F University, Hangzhou 311300, China

Received:2025-03-20 Online:2026-02-25 Published:2026-03-24

Abstract

Abstract:

Scientifically and reasonably assessing the carbon footprint of tea products helps to promote environmental protection and drive the sustainable development of the tea industry. This study aimed to evaluate the life cycle carbon footprint of tea products from “cradle to gate” in Lishui City by establishing a tea plant biomass estimation model to calculate carbon sequestration during the cultivation stage, combined with carbon emissions from processing and distribution. The results showed that: The R² values for above-ground, below-ground, and total biomass models all exceed 0.80; The average annual carbon storage benefit of tea plants was 10.57 kg·kg^-1(CO₂-eq); The average carbon footprint of tea products was 0.49 kg·kg^-1(CO₂-eq); From 2015 to 2023, the average annual carbon emissions from tea production in Lishui reached 2 133 t (CO₂-eq), with an average emission intensity of 0.41 t·hm^-2. The study revealed that the annual carbon storage effect of tea plants exceeds cultivation-stage emissions, playing a significant role in tea product carbon footprint assessment. Moreover, tea product carbon emissions in Lishui showed an increasing trend from 2015 to 2023, with Songyang and Suichang counties exhibiting the highest emission intensity. This research provided methodological insights for related studies and theoretical support for low-carbon tea production.

Key words: tea product, biomass model, carbon stock, carbon footprint

CLC Number:

S571.1

DONG Ruili, GU Lei, ZHANG Meng, ZHOU Guomo. Research on carbon storage of tea trees and carbon footprint of tea products in Lishui City, Zhejiang Province, China[J]. Acta Agriculturae Zhejiangensis, 2026, 38(2): 339-350.

Figures/Tables 11

References 26

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样地编号 Plot number	茶树类型 Tree type	株数 Number of trees	平均地径/mm Average ground diameter/mm
样地1	小Small	6	32.78
Plot 1	中Middle
	大Big
样地2	小Small	6	44.02
Plot 2	中Middle
	大Big
样地3	小Small	6	40.82
Plot 3	中Middle
	大Big
样地4	小Small	6	41.85
Plot 4	中Middle
	大Big

样地编号 Plot number	茶树类型 Tree type	株数 Number of trees	平均地径/mm Average ground diameter/mm
样地1	小Small	6	32.78
Plot 1	中Middle
	大Big
样地2	小Small	6	44.02
Plot 2	中Middle
	大Big
样地3	小Small	6	40.82
Plot 3	中Middle
	大Big
样地4	小Small	6	41.85
Plot 4	中Middle
	大Big

样本编号 Sample number	TPMP	PPS	PDS	CFP(CTPCS)	CFP(NCTPCS)
1	0.34	0.28	0.17	0.45	0.79
2	3.64	0.18	0.12	0.30	3.94
3	3.52	0.47	0.13	0.60	4.12
4	0.44	0.34	0.13	0.47	0.92
5	1.65	0.34	0.10	0.44	2.10
6	10.84	0.40	0.12	0.52	11.36
平均Average	3.40	0.34	0.13	0.46	3.87
7	0.34	0.34	0.17	0.51	0.85
8	0.11	0.42	0.31	0.73	0.84
9	1.81	0.37	0.16	0.53	2.34
10	1.65	0.23	0.10	0.33	1.98
平均Average	0.98	0.34	0.19	0.53	1.50

样本编号 Sample number	TPMP	PPS	PDS	CFP(CTPCS)	CFP(NCTPCS)
1	0.34	0.28	0.17	0.45	0.79
2	3.64	0.18	0.12	0.30	3.94
3	3.52	0.47	0.13	0.60	4.12
4	0.44	0.34	0.13	0.47	0.92
5	1.65	0.34	0.10	0.44	2.10
6	10.84	0.40	0.12	0.52	11.36
平均Average	3.40	0.34	0.13	0.46	3.87
7	0.34	0.34	0.17	0.51	0.85
8	0.11	0.42	0.31	0.73	0.84
9	1.81	0.37	0.16	0.53	2.34
10	1.65	0.23	0.10	0.33	1.98
平均Average	0.98	0.34	0.19	0.53	1.50

年份 Year	莲都 Liandu	青田 Qingtian	缙云 Jinyun	遂昌 Suichang	松阳 Songyang	云和 Yunhe	庆元 Qingyuan	景宁 Jingning	平均 Average
2015	5 075	546	6 339	27 766	33 072	2 546	1 515	7 014	10 483
2016	5 367	569	6 351	29 057	34 786	2 648	1 521	6 497	10 848
2017	5 653	736	6 506	32 012	36 319	3 314	1 565	7 119	11 651
2018	5 481	896	6 716	34 436	38 018	3 492	1 551	6 363	12 118
2019	5 279	1 013	6 865	35 817	38 033	3 475	1 618	6 085	12 273
2020	5 306	1 025	7 341	37 177	38 859	3 519	1 679	6 351	12 655
2021	6 401	926	7 846	41 788	41 344	3 513	1 659	6 529	13 750
2022	7 008	911	8 375	46 335	43 453	3 565	1 837	6 877	14 793
2023	7 405	899	8 588	50 531	45 824	3 758	1 924	7 592	15 815
平均Average	5 884	835	7 212	37 212	38 856	3 314	1 650	6 713	12 711

Research on carbon storage of tea trees and carbon footprint of tea products in Lishui City, Zhejiang Province, China

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年份 Year	莲都 Liandu	青田 Qingtian	缙云 Jinyun	遂昌 Suichang	松阳 Songyang	云和 Yunhe	庆元 Qingyuan	景宁 Jingning	平均 Average
2015	852	92	1 064	4 659	5 550	427	254	1 177	1 759
2016	901	96	1 066	4 876	5 837	444	255	1 090	1 820
2017	949	123	1 092	5 372	6 095	556	263	1 195	1 955
2018	920	150	1 127	5 779	6 380	586	260	1 068	2 034
2019	886	170	1 152	6 010	6 382	583	271	1 021	2 059
2020	890	172	1 232	6 239	6 521	590	282	1 066	2 124
2021	1 074	155	1 317	7 012	6 938	589	278	1 096	2 307
2022	1 176	153	1 405	7 775	7 292	598	308	1 154	2 482
2023	1 243	151	1 441	8 479	7 690	631	323	1 274	2 654
平均Average	987	140	1 210	6 245	6 520	556	277	1 127	2 133

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