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Correlative comparison of pedodiversity and land use diversity between case areas from the developed east and less developed central China

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Journal of Geographical Sciences 2012年第6期22卷 1101-1116页

作者：段金龙张学雷 Institute of Natural Resources and Eco-environment Zhengzhou University

Two typical provincial capitals （Nanjing and Zhengzhou） and two counties （Rugao and Yuanyang） in east （Jiangsu Province） and central （Henan Province） China were chosen respectively as the developed and less developed comparative cases for pedodiversity and land use diversity correlative analysis by borrowing the recently better developed pedodiversity methodology. Land use classification was worked out using remote sensing images in three different periods （1986-1988, 2000-2001 and 2004-2006） for these studied case areas before the calculation of the constituent diversity index and spatial distribution diversity index modified after Shannon entropy in 2 kmx2 km grid scale of the soil and land use pattern were conducted and then a connection index was proposed to evaluate the relationship between soil and land use diversity. Results show that during the years from 1986 to 2006, the composition and spatial distribution of regional land use pattern had changed greatly. The agricultural land area of all the studied case areas decreased obviously in which Nanjing has the highest decrement of 895.98 km2 mainly into urban use while the other land use type area changes show the same trend. The connection index of four typical soil family types and typical urban land use types, i.e., urban construction land, transportation land and industrial and mining area all increased in this period. In the studied case areas, there is the highest soil constituent diversity in Zhengzhou at 0.779 while the simplest soil constituent diversity in Rugao at 0.582. Meanwhile we have higher land use diversity in the more urbanized Jiangsu Province than Henan Province, Nanjing is ranking the first that has been getting higher and higher in the three periods at 0.366 in 1986-1988, 0.483 in 2000-2001 and 0.545 in 2004-2006. Finally, the connection index figures to evaluate the relationship between soil and land use diversity of the studied areas were compared to show the similar phenomenon that th

关键词： pedodiversity land use diversity Shannon entropy connection index Henan Province Jiangsu Province

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