The impact of economic growth on forest fragmentation: a case study of Beijing-Tianjin-Hebei Region in China

doi:10.12302/j.issn.1000-2006.202204051

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (1): 227-236.doi: 10.12302/j.issn.1000-2006.202204051

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The impact of economic growth on forest fragmentation: a case study of Beijing-Tianjin-Hebei Region in China

LUO Yiyi(), LI Lingchao, CHENG Baodong()

School of Economics and Management, Beijing Forestry University, Beijing 100083,China

Received:2022-04-21 Revised:2022-06-28 Online:2024-01-30 Published:2024-01-24
Contact: CHENG Baodong E-mail:luoyiyi0127@bjfu.edu.cn;baodongcheng@163.com

Abstract

Abstract:

【Objective】The degree of forest fragmentation in 38 sample counties in the Beijing-Tianjin-Hebei Region was measured through satellite image data from 2000 to 2018. The impact of regional economic growth on forest resources was studied, and its internal impact mechanism was explored. The results provide a reference for the Beijing-Tianjin-Hebei Region to further realize a coordinated plan for sustainable development and environmental protection. 【Method】A model of the intermediary effects among economic growth, transportation infrastructure construction, and forest fragmentation was established through forest transformation theory, land use change theory, and growth axis theory, and the model was empirically tested. 【Result】In the relationship between the level of economic growth and degree of forest fragmentation in the Beijing-Tianjin-Hebei Region, every 1% increase in economic growth resulted in a 3% increase in forest fragmentation during the same period. In the relationship between economic growth and transportation infrastructure construction, every 1% increase in economic growth resulted in over 0.1% increase in highway density. In the relationship between traffic infrastructure construction and forest fragmentation, every 1-unit increase in highway density increased the number of forest patches in the region by more than 4. The mechanism test showed that in terms of economic growth affecting forest fragmentation, transportation infrastructure construction had a significant intermediary effect, with an intermediary degree of 23.255%. 【Conclusion】 The rise in economic growth significantly promotes forest fragmentation in the Beijing-Tianjin-Hebei Region. Improvement in economic growth can effectively promote the construction of transportation infrastructure and improve the distribution density of roads. The construction of transportation infrastructure significantly exacerbated regional forest fragmentation during the study period. In the process of economic growth, transport infrastructure construction correlated with an increase in forest fragmentation.

Key words: economic growth, forest fragmentation, transport infrastructure, intermediary effect, Beijing-Tianjin-Hebei Region in China

CLC Number:

S757
F326

LUO Yiyi, LI Lingchao, CHENG Baodong. The impact of economic growth on forest fragmentation: a case study of Beijing-Tianjin-Hebei Region in China[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2024, 48(1): 227-236.

Figures/Tables 5

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年份 year	P_AM	G	W/ (km·km^-2)	S/%	D	K	O/ (万人·km^-2)	N/ (kW·人^-1)
总体total	5.604±5.376	9.573±0.888	0.666±0.381	80.0±40.1	5.624±0.970	9.259±1.112	0.197±0.014	2.922±3.991
2000	3.434±2.559	8.386±0.364	0.329±0.190	0	4.782±0.687	8.098±0.371	0.019±0.013	3.656±6.445
2005	3.186±2.369	9.073±0.563	0.620±0.339	100	5.374±0.910	8.690±0.426	0.019±0.014	2.879±3.467
2010	3.450±2.613	9.875±0.553	0.709±0.343	100	5.838±0.945	9.477±0.412	0.020±0.014	2.782±3.301
2015	7.708±6.291	10.236±0.491	0.834±0.392	100	6.049±0.907	9.572±1.505	0.021±0.015	2.593±2.890
2018	10.240±6.843	10.334±0.432	0.847±0.372	100	6.101±0.724	10.525±0.276	0.020±0.014	2.703±2.809

验证方法 verification method		W	G	S	D	O	N	系数 coefficient	观测值 observations	R²
基准回归 benchmark regression	P_AM(1)	—	3.496^***	-2.828^***	0.341	-100.862^***	-0.059	-25.373^***	186	0.267
			(0.621)	(0.688)	(0.385)	(20.577)	(0.093)	(4.365)
	W(2)	—	0.179^***	0.172^***	-0.013	15.472^***	0.009	-1.444^***	186	0.668
			(0.033)	(0.055)	(0.025)	(1.717)	(0.006)	(0.236)
	P_AM(3)	4.536^**	2.683^***	-3.608^***	0.402	-171.043^***	-0.097	-18.825^***	186	0.301
		(1.813)	(0.611)	(0.795)	(0.393)	(36.921)	(0.078)	(4.15)
双向固定效应 fixed-effect regression	P_AM(1)	—	4.024^***	-3.687^***	-0.048	221.283	0.072	-34.316^***	186	0.356
			(0.663)	(0.62)	(-0.443)	(232.204)	(0.09)	(5.858)
	W(2)	—	0.125^***	0.176^***	0.013	45.832^***	0.013	-1.698^***	186	0.623
			(0.034)	(0.056)	(0.035)	(14.893)	(0.009)	(0.333)
	P_AM(3)	4.120^**	3.507^***	-4.412^***	-0.104	32.451	0.017	-27.319^***	186	0.385
		(1.593)	(0.722)	(1.05)	(0.708)	(228.758)	(0.085)	(5.745)

统计量 statistic	Sobel检验Sobel test					Bootstrap检验Bootstrap test
统计量 statistic	系数a coef a	系数b coef b	中介效应 mediation effect	直接效应 direct effect	总效应 total effect	间接效应 indirect effect	直接效应 direct effect
统计值statistic value	0.179	4.536	0.813	2.683	3.496	0.813	2.683
标准差SD	0.032	1.525	0.310	0.710	0.669	0.393	0.633
Z统计量Z statistic	4.268	2.813	2.627	2.430	3.384	2.070	4.240
P	<0.001	0.003	0.009	<0.001	<0.001	0.039	<0.001

变量 variable	W	K	控制变量 control variable	时间效应 time effect	个体效应 individual effect	系数 coefficient	观测值 observations	R²	样本量 sample
P_AM(1)	—	1.534 8±0.254 3^***	控制	固定	固定	-22.966 0±4.650 8^***	186	0.302 0	38
W(2)	—	0.039 2±0.017 9^**	控制	固定	固定	-1.319 1±0.235 5^***	186	0.604 8	38
P_AM(3)	5.162 5±1.600 0^***	1.332 4±0.348 8^***	控制	固定	固定	-16.156 0±4.974 8^***	186	0.349 7	38

The impact of economic growth on forest fragmentation: a case study of Beijing-Tianjin-Hebei Region in China

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