Study On Contribution Rate Of Cultivated Land Conversion To Economic Growth

Land as the basic input element to support economic activity is the foundation of economic growth. With the further development of economy and society, as well as industrialization and urbanization, human demand for construction land is sharp increase, the number of cultivated land conversion is increasing, people and land contradictions have become increasingly prominent, and so how to deal with the relationship between economic development and cultivated land conversion is the key issue for the society sustainable development. This paper selects Shandong Province as the study object, using panel data of each prefecture-level city from1996to2006in Shandong Province to study based on the C-D production function to study the contribution of cultivated land conversion to economic growth and the factors affecting the regional differences, study conclusions is of some significant to the coordination relationship between Shandong Province’s economic growth and cultivated land conversion.Paper mainly includes three parts, the first is the introduction of relevant theories, including theory of inter-sector allocation of land and theory of the interaction relationship between cultivated land conversion and economic growth and theory of C-D production function, in order to lay the foundation for empirical analysis; the second part is process analysis of Shandong Province economic development and cultivated land conversion, mainly analyzing the economic development in Shandong Province, the general situation of cultivated land conversion, regional differences of land conversion in each prefecture-level city, and the correlation between economic growth and cultivated land conversion; the third part is the core of the paper, through the variable selection, model built to analyze the lagged effects of cultivated land conversion contribution to economic growth, calculate the cumulative cultivated land conversion from1996to2006contribution rates to economic growth and per capita land conversion contribute to GDP in secondary and tertiary industries, on this basis to analyze the factors which impact on the difference of the contribution.The results show that:(1) After the cultivated land is occupied as a factor into production, its role in economic growth over a period of time to be apparent, its cost-effective to play with a time lag effect, the study found cultivated land in Shandong Province to play a significant role in economic growth is the third year after it’s occupied, this study obtains a conclusion that the land’s contribution to economic growth has a lag effect.(2) According to the outcome of production function model, the study found that from1996to2006capital investment has played a significant role in economic growth in Shandong Province, its contribution to economic growth up to62.6%, technological progress and labor force play a small contribution to economic growth; to17prefecture-level cities in Shandong Province, basically are more than2%, and some even up to13%, so in the economic growth process cultivated land conversion’s contribution to economic growth can not be underestimated.(3) Cultivated land’s contribution to economic growth is basically consistent with the level of each region’s economic development, but not entirely, because a region’s economic development is also affected by resource endowments, location, capital, technological progress, policies and other factors.(4) From spatial distribution of cultivated land conversion’s contribution rate to economic growth, every region of cultivated land conversion’s contribution rate and contribution amount of per capita land conversion to GDP in secondary and tertiary industries have differences, on the whole, Lu Dong region is larger, western region is smaller, eastern、central and western show clear regional differences. Theoretical and empirical analysis shows that economic development level, urbanization level, industrial level, consumption level and other factors are the main reasons leading to regional differences of cultivated land conversion’s contribution to economic growth.