Carbon Sink of Forest Land and Other Biomass in the Beijing-Tianjin-Hebei Region in 2020

doi:10.13466/j.cnki.lyzygl.2022.05.006

Abstract

Abstract:

Based on the data of carbon measurement and monitoring system of China's forestry addressing climate change,carbon storage and carbon sink of forest land and other biomass in the Beijing-Tianjin-Hebei Region in 2020 andthe contribution of the key ecological projects and the key strategic implementation area to the carbon sinks in the Beijing-Tianjin-Hebei Region were estimated by using the carbon measurement model and parameters established by the specific survey of forest carbon pools,also combining the previous national forest inventory data.The results showed that:1)In 2020,the carbon sink of forest land in the Beijing-Tianjin-Hebei Region was 23.918 Tg CO₂/a,and the carbon sink of other biomass such as scattered trees and four-side trees was 0.467Tg CO₂/a.The arbor forestland accounted for the largest proportion of the total carbon sink of forest land and other biomass.Among all 3 provinces/cities in the Beijing-Tianjin-Hebei Region,the carbon sink of forest land and other biomass of Hebei Province took the 1st place,while Tianjin was the last.The biomass contributed the most(92.13%)to the carbon sinks of forest land and other biomass.‘Land that has always been forest land’ contributed the most to the carbon sinks of forest land and other biomass(87.67%),of which the carbon sink generated by the land that has always been arbor forest accounted for 79.78%.2)The contribution of three key ecological programs(namely,the Beijing-Tianjin Sandstorm-Control Program,the Three-North Shelterbelt Program and the Taihang Mountain Afforestation Program)and one key strategic implementation area(namely,the Beijing-Tianjin-Hebei Coordinated Development Zone)to the carbon sinks of forest land in the Beijing-Tianjin-Hebei Region was measured and analyzed.Among the three key ecological programs and one key strategic implementation area,the Beijing-Tianjin-Hebei Coordinated Development Zone made the largest contribution(65.13%),followed by the Beijing-Tianjin Sandstorm-Control Program and the Taihang Mountain Afforestation Program(37.55% and 34.16%,respectively),while the Three-North Shelterbelt Program had less impact.

Key words: Beijing-Tianjin-Hebei Region, carbon pool, carbon storage, carbon sink, carbon neutrality

CLC Number:

S718.56

HOU Ruiping, CHEN Jian, XIA Chaozong, SONG Jiageng, HUANG Xiang, ZHENG Qianhui, AN Tianyu, HAO Yuelan. Carbon Sink of Forest Land and Other Biomass in the Beijing-Tianjin-Hebei Region in 2020[J]. FOREST RESOURCES WANAGEMENT, 2022, (5): 42-52.

Figures/Tables 10

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省 (市)	优势树种	BEF	D/ (t/m³)	R	CF/ (tC/td.m.)	省 (市)	优势树种	BEF	D/ (t/m³)	R	CF/ (tC/td.m.)
北京	油松	2.4850	0.4157	0.2259	0.5184	天津	其它硬阔类	1.2838	0.6062	0.2237	0.4795
	柏木	3.6810	0.4722	0.2278	0.5088		杨树	2.2995	0.3644	0.2088	0.4502
	栎类	2.1057	0.6119	0.2642	0.4798		柳树	2.5977	0.4409	0.2023	0.4803
	榆树	1.6011	0.4868	0.2170	0.4803		其它软阔类	2.1953	0.4222	0.2096	0.4519
	刺槐	1.4823	0.6720	0.2182	0.4750		其它松类	2.1030	0.4440	0.2288	0.5184
	其它硬阔类	1.7769	0.6062	0.2212	0.4813	河北	落叶松	1.9065	0.5053	0.3132	0.5137
	椴树	2.3974	0.4177	0.2597	0.4392		油松	1.8713	0.4157	0.2252	0.5184
	杨树	2.1759	0.3644	0.2303	0.4502		栎类	1.9828	0.6119	0.2879	0.4798
	其它软阔类	2.1213	0.4222	0.2285	0.4508		白桦	1.5523	0.4969	0.3201	0.5055
	阔叶混	1.8814	0.5222	0.2351	0.4657		枫桦	1.4108	0.5770	0.2509	0.4803
	其它松类	2.7802	0.4415	0.2499	0.5177		其它硬阔类	1.6280	0.6062	0.2253	0.4885
天津	油松	1.8988	0.4157	0.2255	0.5184		杨树	2.5588	0.3644	0.2110	0.4502
	柏木	2.3072	0.4722	0.2320	0.5088		其它软阔类	2.1200	0.4222	0.2121	0.4504
	栎类	2.0636	0.6119	0.2654	0.4798		阔叶混	1.8045	0.5222	0.2351	0.4728
	榆树	1.7864	0.4868	0.2143	0.4803		针阔混	2.0037	0.4754	0.2218	0.4866
	刺槐	1.4978	0.6720	0.2182	0.4750

气候带	树种	起源	模型方程	R²	气候带	树种	起源	模型方程	R²
温带大陆气候	云杉	天然林	B=3.89V^-0^.²⁴	0.81	温带季风气候	落叶松	人工林	B=1.02V⁰^.⁰⁶	0.71
	油松	人工林	B=0.67V^-0^.⁴²	0.86			天然林	B=113.45V⁰^.⁸⁰	0.81
		天然林	B=0.67V⁰^.¹⁵	0.69		其它松类	人工林	B=2.08V^-0^.¹⁰	0.76
	柏木	天然林	B=0.16V⁰^.⁵¹	0.70			天然林	B=108.05V^-1^.⁰¹	0.83
	落叶松	天然林	0.006			柏木	人工林	B=1.23V⁰^.⁰⁶	0.78
	其它针叶	人工林	B=6.68V^-0^.⁴³	0.78			天然林	B=44.08V^-0^.⁸⁷	0.72
		天然林	B=1.36V^-0^.⁰³	0.72		针叶混交	天然林	B=0.0098V	0.54
	栎类	天然林	B=3.52V^-1^.²³	0.82		栎类	天然林	B=2.47V^-0^.¹³	0.70
	桦森	天然林	B=9.51V^-1^.⁴⁷	0.81		刺槐	人工林	B=0.59V⁰^.²⁶	0.77
	杨树	人工林	B=0.01V¹^.⁵²	0.61		桦木	天然林	B=2.70V⁰^.⁰³	0.75
		天然林	0.071			杨树	人工林	0.009
	其它软阔类	天然林	B=2.64V^-0^.⁰⁹	0.87		椴树	天然林	B=2.10V⁰^.²⁷	0.88
	其它阔叶	人工林	B=0.95V⁰^.³³	0.67		软阔类	天然林	B=0.23V⁰^.⁵¹	0.70
		天然林	B=3.73V^-0^.¹⁸	0.82		硬阔类	天然林	B=7.07V^-0^.³⁴	0.79
	阔叶混	天然林	B=0.0180V	0.68		其它阔叶	人工林	B=0.69V⁰^.¹⁵	0.71
	针阔混交	人工林	B=0.0226V	0.71			天然林	0.037
		天然林	B=0.0298V	0.64		阔叶混交	天然林	B=0.16V^-0^.⁸²	0.74
温带季风气候	云冷杉	天然林	B=53.01V^-0^.⁶⁸	0.81		针阔混	人工林	B=5.76V^-0^.¹⁸	0.86
	油松	人工林	B=0.006V⁰^.⁴⁸	0.61			天然林	B=1.10V⁰^.¹¹	0.72
		天然林	B=0.71V⁰^.²⁹	0.72

气候带	森林类型	模型	R²
温带大陆气候	人工林/天然林	B=0.07176 V-4.46139P-9.31450	0.89
温带季风气候	人工林(B)	B=0.003777V	0.73
	天然林(A)	B=0.01015V	0.60

气候带	树种	起源	模型方程	R²	气候带	树种	起源	模型方程	R²
温带大陆气候	云杉	天然林	B=11.08V^-0^.³⁷	0.81	温带季风气候	其它松类	人工林	B=5.26V⁰^.⁰⁹	0.76
	油松	人工林	B=2.34V^-0^.⁰⁸	0.81			天然林	B=11.66V^-0^.¹²	0.82
		天然林	B=2.07V⁰^.¹⁶	0.78		柏木	人工林	0.1
	落叶松	天然林	B=96.54V^-0^.⁸⁰	0.87			天然林	B=0.41V⁰^.⁴⁴	0.71
	柏木	天然林	B=1.34V⁰^.⁰⁶	0.76		针叶混交	天然林	B=9.14V^-0^.¹⁶	0.83
	其它针叶	人工林	0.12			栎类	天然林	B=1.93V⁰^.²⁰	0.71
		天然林	B=2.20V^-0^.⁰⁴	0.74		刺槐	人工林	B=0.84V⁰^.³⁷	0.75
	栎类	天然林	0.13			桦木	天然林	B=10.64V^-0^.⁰⁷	0.82
	桦木	天然林	0.07			杨树	人工林	B=0.35V⁰^.³⁰	0.72
	杨树	人工林	0.06				天然林	0.09
		天然林	B=1.51V^-0^.⁰¹	0.84		椴树	天然林	B=1.75V⁰^.²⁰	0.66
	其它软阔	天然林	B=0.45V⁰^.⁴⁹	0.94		其它软阔	人工林	B=0.44V⁰^.³²	0.75
	阔叶混	天然林	B=19.71V^-0^.²⁴	0.92			天然林	B=19.72V^-0^.²⁹	0.88
	针阔混交	人工林	B=1.37V⁰^.⁴⁵	0.71		其它硬阔	天然林	B=2.97V⁰^.⁰⁵	0.79
		天然林	0.16			其它阔叶	人工林	B=0.78V⁰^.⁴⁴	0.76
温带季风气候	云冷杉	天然林	B=0.43V⁰^.³⁷	0.64			天然林	B=2.98V⁰^.¹²	0.64
	油松	人工林	B=4.82V⁰^.⁰³	0.72		阔叶混	天然林	B=11.26V^-0^.¹⁸	0.75
		天然林	0.11			针阔混交	人工林	B=1.99V⁰^.²⁶	0.79
	落叶松	人工林	B=1.95V⁰^.³²	0.72			天然林	B=1.31V⁰^.²⁸	0.87
		天然林	B=2.85V⁰^.²⁶	0.73

土纲	土壤类型	样点数/ 个	容重/(g/cm³)			有机质含量/(g/kg)			碳密度/(Mg C/hm²)
土纲	土壤类型	样点数/ 个	均值	标准差		均值	标准差		均值	标准差
淋溶土	棕壤	119	1.09	0.24		29.96	27.10		185.9	155.0
半淋溶土	褐土	70	1.20	0.28		20.14	13.95		130.8	77.2
钙层土	栗钙土	24	1.31	0.20		20.82	14.95		134.6	94.5
水成土	沼泽土	24	0.88	0.33		127.69	159.75		395.5	449.1
	水稻土	21	1.30	0.14		19.01	12.87		156.9	106.7
半水成土	水稻土	21	1.30	0.14		19.01	12.87		156.9	106.7
	潮土	24	1.32	0.26		9.04	5.87		99.8	55.6
	草甸土	20	1.11	0.25		27.38	21.41		224.6	181.5
	岩成土	风沙土	38	1.51	0.12		6.50	4.14		85.5	48.8
高山土	山地草甸土	3	1.02	0.28		41.80	23.92		267.5	135.3