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Analysis on the Change of Arable Land Area and Its Driving Force in Hefei

机译：合肥市耕地面积变化及其驱动力分析

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In recent years, the decrease of total arable land area and the area per capita of available arable land resource are serious problems in China. These problems will become more serious with the development of economy. In this paper, based on the statistical data of cultivated land in Hefei from 1998 to 2009, their driving forces of the cultivated land change were analyzed by means of principal component analysis. The results showed the changing trends. The total and per capita of cultivated land were declining, but the speed of change was not the same. The sharp decrease was occurred in the period of 2002-2005. Nine affecting factors influenced on cultivated land change were analyzed by principal component analysis. The results showed that population growth, economic development and efficiency of agricultural production were main driving forces affecting cultivated land change in Hefei.
机译：近年来，中国耕地总面积的减少和可用耕地资源的人均面积已成为严重的问题。随着经济的发展，这些问题将变得更加严重。本文基于合肥市1998-2009年耕地统计数据，通过主成分分析法分析了其对耕地变化的驱动力。结果表明变化趋势。耕地的总数和人均在下降，但变化速度并不相同。急剧下降发生在2002-2005年期间。通过主成分分析法分析了影响耕地变化的九个影响因素。结果表明，人口增长，经济发展和农业生产效率是影响合肥耕地变化的主要动力。

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