Spatial-temporal Changes of Cultivated Land Area by County Scale in Hernan Province
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    Abstract:

    With the use of geographic concentration index, imbalance index and other statistical index, and the help of software ArcGIS 9.0, this paper explored spatial distributions of county territory cultivated land scale and cultivated land per capita of Hernan province in 1994, 1999 and 2004. The paper also explored the change quantity and change speed and spatial variation characteristics of county territory cultivated land scale and cultivated land scale per capita. The main conclusions are as follows. Firstly, the spatial distributions are that the cultivated land scale of southeast part is bigger than that of northwest part in Hetnan Province. Sec-ondly, in the former research period(from 1994 to 1999), the county-level regions where the cultivated land scales were increased are centralized in the space and quantity~ those where the cultivated land scales were re-duced are scattered in the space and quantity. But in the latter research period(from 1999 to 2004), Hetnan Province had the opposite development momentum. Thirdly, the cultivated land scale changes by county ter-ritory are related to those of the terrain and landform. Fourthly, the regions where cultivated land scale per capita is relatively more mainly concentrated in regions along the Beijing-Guangzhou railway, the part re-gions of Sanmenxia City and Nanyang City. Fifthly, change quantities of cultivated land scale show the spa-tial distrihution of "more in the south。fewer in the north" in He'nan Province. Finally, higher change rate of cultivated land scale per capita mainly distributed in the southwest He'nan Province and those of the part regions of Sanmenxia City and North He'nan Province are relatively low.

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范辉,马佳.河南省县域耕地面积的时空演变[J].水土保持通报英文版,2012,(4):281-287

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History
  • Received:August 29,2011
  • Revised:
  • Adopted:
  • Online: November 25,2014
  • Published: