安徽省近15年土地要素对经济贡献及Logistic 曲线拐点探析

doi:10.13249/j.cnki.sgs.2014.01.40

摘要/Abstract

摘要：

运用C-D生产函数,利用统计年鉴数据,采用最小二乘回归方法,对安徽省1997~2011年建设用地对经济贡献率进行了定量测度,并对其Logistic 曲线进行了探索,结果表明：① 研究时段,资本、劳动力、建设用地投入要素对二、三产业产值的弹性系数分别为0.469、0.801、0.369;② 资本、劳动力、建设用地、科技进步投入要素对经济贡献率分别为52.31%、22.9%、20.74%、4.05%; ③ 建设用地扩展与经济增长契合Logistic 曲线,拐点位于二、三产业产值为2 744亿元时（2002年）,1997~2002年,建设用地对经济贡献随经济增长呈加速上升态势,2002~2011年,建设用地对经济贡献上升速度减缓,并最终趋于平稳;④ 科技进步对经济贡献呈递增态势,但科技对经济贡献率偏低。从转换土地经济发展理念、控制建设用地规模、实现经济由资源依赖性向创新驱动型转变等方面提出了相应对策。

关键词: C-D生产函数, Logistic 曲线, 建设用地扩展, 经济贡献率, 安徽省

Abstract:

China is undergoing rapid advance of industrialization and urbanization. A large number of input in new construction land provide a strong support for the sustained rapid growth of investment in the whole society, and the continuous growth of investment has become an important driving force to spur economic growth. The moderate input in land factor is the basis to guarantee urbanization and economic development. The over-reliance on land for development will inevitably lead to a decline in the amount of arable land, not only endangering food security and the achievement of guard-line objectives for 1.2×10³ km² of arable land, but also having a major impact on the terrestrial carbon cycle and ecological system changes, which involves compensation, resettlement of landless peasants and other social issues. Accordingly, the accurate control on the contribution of construction land expansion to economic growth can help the management understand the land value in a scientific way as well as correct and abandon the wrong ideas to exaggerate economic value of the land. Based on the statistical data and C-D production function, the economic contribution rate of construction land of Anhui Province from 1997 to 2011 was quantitatively measured with the method of least squares regression, and its Logistic curve was explored. The results showed the findings in the following. 1) In the study period, the elastic coefficients of input factors, i.e., capital, labor and construction land, against the total output value of secondary and tertiary industries were 0.469,0.801 and 0.369 respectively. 2) The economic contribution rates of input factors, i.e., capital, labor, construction land and scientific progress, were 52.31%,22.9%,20.74% and 4.05% respectively. 3) The Logistic curve of construction land expansion fitted with economic growth occurs when the total output value of secondary and tertiary industries was 274.4 billion yuan(RMB) in 2002. From 1997 to 2002, the economic contribution rate of construction land increased rapidly. From 2002 to 2011, the rising speed of economic contribution rate of construction land slowed down and tended to be steady. 4) The economic contribution rate of scientific progress tended to increase steadily but in a relatively low value. These results can not only provide a reference for the directional transition of economic development in Anhui Province from land and other factors to technological innovation as well as similar researches at the provincial scale, but also lay a scientific basis for the development of differentiated adjusted land policy and the protection of arable land resources in different stages.

Key words: C-D production function, Logistic curve, construction land expansion, economic contribution rate, Anhui Province

中图分类号:

F301.2

张乐勤, 陈素平, 陈保平. 安徽省近15年土地要素对经济贡献及Logistic 曲线拐点探析[J]. 地理科学, 2014, 34(1): 40-46.

Le-qin ZHANG, Su-ping CHEN, Bao-ping CHEN. The Contribution of Land to The Economic Growth and Inflection Point of Its Logistic Curve in Anhui Province in Recent 15 Years[J]. SCIENTIA GEOGRAPHICA SINICA, 2014, 34(1): 40-46.

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变量		LnY	LnK	LnL	LnS
LnY	Pearson 相关性	1	0.988^**	0.991^**	0.918^**
LnY	显著性（双侧）		0.000	0.000	0.000
LnK	Pearson 相关性	0.988^**	1	0.977^**	0.857^**
LnK	显著性（双侧）	0.000		0.000	0.000
LnL	Pearson 相关性	0.991^**	0.977^**	1	0.904^**
LnL	显著性（双侧）	0.000	0.000		0.000
LnS	Pearson 相关性	0.918^**	0.857^**	0.904^**	1
LnS	显著性（双侧）	0.000	0.000	0.000

	未标准化系数		Beta	t	Sig.
	B		Beta	t	标准误差
（常数）	-4.611	1.017		-4.532	0.001
LnK	0.469	0.058	0.549	8.139	0.000
LnL	0.801	0.234	0.278	3.423	0.006
LnS	0.369	0.064	0.196	5.781	0.000

年份	第二、三产业产值(y)	资本投入（k）	第二、三产业从业人数（l）	建设用地扩展（s）	技术进步速度（a）
1997~2002	11.12	6.87	2.96	15.05	-0.02
2002~2011	19.00	24.64	5.54	5.87	0.84
平均增速（%）	16.121	17.979	4.609	9.060	0.654

年份	资本投入贡献率（%）	劳动力投入贡献率（%）	建设用地投入贡献率（%）	技术进步贡献率（%）
1997~2002	28.98	21.31	49.94	-0.23
2002~2011	60.82	23.36	11.4	4.42
平均增速（%）	52.31	22.9	20.74	4.05

M	b	c	拟合优度R²	F值
1668	0.9997	0.001391	0.915	140.648
1673	0.9997	0.001366	0.916	141.228
1674	0.9997	0.001361	0.916	141.230
1675	0.9997	0.001357	0.916	141.198