基于光合法和生物量法分析塔里木沙漠公路防护林带碳汇估算差异性

doi:10.6048/j.issn.1001-4330.2024.08.022

新疆农业科学 ›› 2024, Vol. 61 ›› Issue (8): 2014-2022.DOI: 10.6048/j.issn.1001-4330.2024.08.022

• 园艺特产·农产品加工工程·林业 • 上一篇下一篇

基于光合法和生物量法分析塔里木沙漠公路防护林带碳汇估算差异性

李汝勇¹(), 任久明¹, 雷霆¹, 王克林¹(), 刘鹏程¹, 李江涛²

1.中国石油天然气股份有限公司塔里木油田分公司,新疆库尔勒 841000
2.新疆红杉科技服务有限公司,乌鲁木齐 830000

收稿日期:2024-01-15 出版日期:2024-08-20 发布日期:2024-09-19
通信作者: 王克林(1989-),男,贵州松桃人,高级工程师,研究方向为新能源,(E-mail)wangkl-tlm@petrochina.com.cn
作者简介:李汝勇(1966-),男,河北南皮人,教授级高级工程师,研究方向为新能源,(E-mail)liry-tlm@petrochina.com.cn
基金资助:
塔里木油田碳核算模型及指南研究(2023650001000073)

Differences in carbon sink estimation between photosynthetic and biomass methods in the Tarim Desert Highway shelterbelt

LI Ruyong¹(), REN Jiuming¹, LEI Ting¹, WANG Kelin¹(), LIU Pengcheng¹, LI Jiangtao²

1. Tarim Oilfield Company, Korla Xinjiang 841000, China
2. Xinjiang Hongshan Technology Service Co., Ltd., Urumqi 830000, China

Received:2024-01-15 Published:2024-08-20 Online:2024-09-19
Correspondence author: WANG Kelin (1989-), male, from Songtao, Guizhou, senior engineer, research direction: organic chemistry and ecological restoration, (E-mail) wangkl-tlm@petrochina.com.cn
Supported by:
Study on Carbon Accounting Model and Guidelines for Tarim Oilfield(2023650001000073)

摘要/Abstract

摘要：

【目的】研究基于光合法和生物量法分析塔里木沙漠公路防护林带碳汇估算差异性,为干旱荒漠区人工林管护和碳储量的评估提供科学依据。【方法】以新疆塔克拉玛干沙漠公路沿线人工防护林为研究对象,对比光合速率模型和生物量模型,估算防护林带3种主要建林植物各自光合速率及筛选最优生物量模型,进而估算其固碳能力及碳储量。【结果】3种植物在光合固碳模型中,单位叶面积固碳量差异显著,表现为梭梭 > 沙拐枣 > 柽柳;3种植物生物量最优模型均为幂函数,预测值与实测值回归决定系数在90%以上。光合固碳法估算得到的沙漠公路防护林带总固碳量为567 431.68 t,生物量法估算的值为565 083.75 t,2种方法估算得到的固碳量相当。【结论】3种植物固氮量差异显著(梭梭 > 沙拐枣 > 柽柳),模型效果精确可靠。

关键词: 光合固碳法; 生物量固碳法; 碳汇估算; 预测模型

Abstract:

【Objective】 Desert highway shelterbelts play a major role in wind prevention and sand fixation, as well as oxygen release and carbon fixation. By investigating vegetation along the Tarim Desert Highway and obtaining corresponding measured data, this study aims to further reveal the ecological and environmental effects and artificial ecosystem service functions of desert highway shelterbelts, providing a scientific basis for artificial forest management and carbon storage assessment in arid desert areas. 【Methods】 In this study, we compared the photosynthetic rate model with the biomass model to estimate the photosynthetic rate and the optimal biomass model of each of the three main forest-building plants in the shelterbelt, and then estimated their carbon sinksink capacity and carbon storage, taking the planted shelterbelt along the highway in the Tarim Desert as an object of study. 【Results】 There were significant differences in carbon fixation per unit leaf area among the three plants in the photosynthetic carbon fixation model, which were in the order of Haloxylon ammodendron > Calligonum mongolicum > Tamarix ramosissima. The optimal biomass models of the three plants were all power functions. The validation results showed that the regression determination coefficients between the predicted and measured values exceeded 90%, indicating high precision and reliability of the models. The total carbon sfixation of the desert highway shelterbelt estimated by the photosynthetic method was 567,431.68 tons, and the value estimated by the biomass method was 565,083.75 tons, indicating that the carbon sink estimated by the two methods was comparable. 【Conclusion】 There were significant differences in nitrogen fixation among the 3 species(Haloxylon ammodendron > Calligonum mongolicum > Tamarix ramosissima),indicating high precision and reliability of the models.

Key words: carbon sink estimation; photosynthetic sink method; biomass method; prediction models

中图分类号:

S718

李汝勇, 任久明, 雷霆, 王克林, 刘鹏程, 李江涛. 基于光合法和生物量法分析塔里木沙漠公路防护林带碳汇估算差异性[J]. 新疆农业科学, 2024, 61(8): 2014-2022.

LI Ruyong, REN Jiuming, LEI Ting, WANG Kelin, LIU Pengcheng, LI Jiangtao. Differences in carbon sink estimation between photosynthetic and biomass methods in the Tarim Desert Highway shelterbelt[J]. Xinjiang Agricultural Sciences, 2024, 61(8): 2014-2022.

图/表 8

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样方编号 Sample number	植被频度 Vegetation frequency(%)			平均株高 Average plant height (m)	平均冠幅 Average crown width (m)		平均胸径 Average breast diameter (cm)	坐标 Coordinate		海拔 Altitude (m)
样方编号 Sample number	梭梭 Haloxylon ammod- endron	沙拐枣 Calligonum mongolicum	柽柳 Tamarix chinensis	平均株高 Average plant height (m)	东西 East and West	南北 South and North	平均胸径 Average breast diameter (cm)	经度 E Longitude	纬度 N Latitude	海拔 Altitude (m)
S₁	54.85	10.30	34.85	1.47	2.01	1.96	4.29	84°18'2.41″	40°45'15.64″	932
S₂	60.54	37.90	1.56	1.93	2.04	2.05	5.77	84°20'11.11″	40°10'40.40″	951
S₃	78.66	19.00	2.34	1.84	2.31	1.94	3.28	83°59'58.32″	39°35'13.45″	1 020
S₄	76.56	13.68	9.76	1.79	1.89	1.96	2.74	83°43'55.20″	39°14'27.94″	1 066
S₅	62.43	35.50	2.07	2.04	2.05	1.88	3.23	83°35'29.07″	39°0'41.45″	1 096
S₆	75.65	18.81	5.54	1.15	1.78	1.56	1.92	83°26'41.32″	38°47'27.80″	1 142
S₇	70.60	22.00	7.40	1.19	1.35	1.54	2.56	83°16'35.85″	38°32'41.31″	1 164
S₈	67.85	30.95	1.20	1.67	2.02	1.84	2.77	83°8'27.49″	38°10'50.59″	1 217
S₉	72.50	24.22	3.28	1.16	1.24	1.30	1.82	83°1'20.77″	37°49'52.84″	1 269
S₁₀	72.68	14.50	12.82	1.99	2.05	1.70	4.31	82°54'17.15″	37°39'24.41″	1 314

样方编号 Sample number	植被频度 Vegetation frequency(%)			平均株高 Average plant height (m)	平均冠幅 Average crown width (m)		平均胸径 Average breast diameter (cm)	坐标 Coordinate		海拔 Altitude (m)
样方编号 Sample number	梭梭 Haloxylon ammod- endron	沙拐枣 Calligonum mongolicum	柽柳 Tamarix chinensis	平均株高 Average plant height (m)	东西 East and West	南北 South and North	平均胸径 Average breast diameter (cm)	经度 E Longitude	纬度 N Latitude	海拔 Altitude (m)
S₁	54.85	10.30	34.85	1.47	2.01	1.96	4.29	84°18'2.41″	40°45'15.64″	932
S₂	60.54	37.90	1.56	1.93	2.04	2.05	5.77	84°20'11.11″	40°10'40.40″	951
S₃	78.66	19.00	2.34	1.84	2.31	1.94	3.28	83°59'58.32″	39°35'13.45″	1 020
S₄	76.56	13.68	9.76	1.79	1.89	1.96	2.74	83°43'55.20″	39°14'27.94″	1 066
S₅	62.43	35.50	2.07	2.04	2.05	1.88	3.23	83°35'29.07″	39°0'41.45″	1 096
S₆	75.65	18.81	5.54	1.15	1.78	1.56	1.92	83°26'41.32″	38°47'27.80″	1 142
S₇	70.60	22.00	7.40	1.19	1.35	1.54	2.56	83°16'35.85″	38°32'41.31″	1 164
S₈	67.85	30.95	1.20	1.67	2.02	1.84	2.77	83°8'27.49″	38°10'50.59″	1 217
S₉	72.50	24.22	3.28	1.16	1.24	1.30	1.82	83°1'20.77″	37°49'52.84″	1 269
S₁₀	72.68	14.50	12.82	1.99	2.05	1.70	4.31	82°54'17.15″	37°39'24.41″	1 314

模型 Model	树种 Tree species	自变量 Independent variable	R²	SEE	P
一次函数 W=a+bX	柽柳	LH	0.934	0.270	<0.001
	梭梭		0.617	2.543	<0.001
	沙拐枣		0.912	0.333	0.036
	柽柳	V	0.937	0.170	<0.001
	梭梭		0.925	0.225	<0.001
	沙拐枣		0.875	0.273	0.002
指数函数 W=ae^bX	柽柳	LH	0.661	3.753	0.002
	梭梭		0.610	2.732	0.1518
	沙拐枣		0.861	1.200	<0.001
	柽柳	V	0.902	1.155	<0.001
	梭梭		0.880	2.719	0.003
	沙拐枣		0.899	2.231	0.011
幂函数 W=aX^b	柽柳	LH	0.931	0.862	<0.001
	梭梭		0.898	0.833	<0.001
	沙拐枣		0.956	0.742	<0.001
	柽柳	V	0.941	0.634	<0.001
	梭梭		0.965	0.929	<0.001
	沙拐枣		0.799	0.923	<0.001

模型 Model	树种 Tree species	自变量 Independent variable	R²	SEE	P
一次函数 W=a+bX	柽柳	LH	0.934	0.270	<0.001
	梭梭		0.617	2.543	<0.001
	沙拐枣		0.912	0.333	0.036
	柽柳	V	0.937	0.170	<0.001
	梭梭		0.925	0.225	<0.001
	沙拐枣		0.875	0.273	0.002
指数函数 W=ae^bX	柽柳	LH	0.661	3.753	0.002
	梭梭		0.610	2.732	0.1518
	沙拐枣		0.861	1.200	<0.001
	柽柳	V	0.902	1.155	<0.001
	梭梭		0.880	2.719	0.003
	沙拐枣		0.899	2.231	0.011
幂函数 W=aX^b	柽柳	LH	0.931	0.862	<0.001
	梭梭		0.898	0.833	<0.001
	沙拐枣		0.956	0.742	<0.001
	柽柳	V	0.941	0.634	<0.001
	梭梭		0.965	0.929	<0.001
	沙拐枣		0.799	0.923	<0.001

树种 Tree species	单位叶面积年固碳量 Carbon sequestration per unit area per year ( kg/(m²·a))	植被覆盖面积 The area covered by vegetation (hm²)	种植时长 Planting duration (a)	年均固碳量 Average annual carbon sequestration ( t/a)	总固碳量 Total carbon sequestration (t)
柽柳Tamarix chinensis	2.20	166.06	16	3 653.32	58 453.12
梭梭Haloxylon ammodendron	1.95	1291.36	16	25 181.52	402 904.32
沙拐枣Calligonum mongolicum	2.02	328.20	16	6 629.64	106 074.24
合计Total				35 464.48	567 431.68

基于光合法和生物量法分析塔里木沙漠公路防护林带碳汇估算差异性

Differences in carbon sink estimation between photosynthetic and biomass methods in the Tarim Desert Highway shelterbelt

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Metrics

树种 Tree species	生物量 Biomass (kg/株)	株数 Number of plants (10⁴株)	总生物量 Total biomass (t)	碳含量 Carbon content (kg/kg)	CO₂/C (g/mol)	碳储量 Carbon storage (t)	总固碳量 Total carbon sequestration (t)
柽柳Tamarix chinensis	8.72	147	12 818.4	0.5	3.667	6 409.2	23 500.4
梭梭Haloxylon ammodendron	19.62	1260	247 212	0.5	3.667	123 606	453 222
沙拐枣Calligonum mongolicum	11.67	413	48 197.1	0.5	3.667	24 098.55	88 361.35
合计Total						154 113.75	565 083.75

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