RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (09): 1521-1527.doi: 10.11870/cjlyzyyhj201509012

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Analysis of cropland resource changes and driving factors in yangtze river delta from 1990 to 2012

CHEN Xiao-fei1,2, YAO Shi-mou1, ZHANG Luo-cheng1   

  1. 1. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008;
    2. University of Chinese Academy of Sciences, Beijing 100049
  • Received:2014-11-24 Revised:2015-01-19 Online:2015-09-20
  • Contact: 张落成,E-mail:lczhang@niglas.ac.cn E-mail:lczhang@niglas.ac.cn

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Abstract: The Yangtze Delta is not only the most developed region of China, also one of the most urbanized regions in China. Although the quality of cultivated land is better than that of other regions, cultivated land problem is very serious in the context of the high speed economic development. In this paper, we took 16 cities in the Yangtze Delta as the research objects. The quantitative changes of cultivated land resources, land use intensity and land use pressure of cultivated lands were analyzed by using the data from 1990 to 2012. The results showed that: (1) During the period from the 1990s to the 2012s, the total and per capita cultivated area presented cyclical declines, represented as a " fast-slow-fast-slow-slow" mode in the Yangtze Delta. (2) The land use intensity indexes of cultivated land presented "high in the North and low in the South" pattern. With the increase of cultivated land's use intensity indexes in Zhejiang Province later, the original "high-high" and "low-low" structure was broken and space spots began to appear on the mosaic pattern; (3) As for the Yangtze Delia, population, the proportion of tertiary industry and urbanization played a significant role in arable land changes, elasticity coefficients were -0.216, -0.194, and -0.203, respectively. GDP per capita had no significant correlation with arable land area.

Key words: using intensity index, spatial autocorrelation model, STIRPAT, Yangtze River Delta

CLC Number: 

  • S28
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