关中—天水地区土地承载力空间自相关研究

Spatial Autocorrelation of Land Carrying Capacity in the Guanzhong—Tianshui Areas

应用1978~2008年关中—天水的农业经济数据,运用空间自相关模型对关中—天水经济区的LCCI进行分析.结果表现出：关中—天水经济区耕地面积迅速下降,人口迅速膨胀,LCCI的空间分布格局为＂城市高,农村低,西高东低＂;空间分布呈现出高度的正的全局空间自相关;局部空间自相关分布特征为城市辖区和天水地区是显著的高值集聚区,关中—天水地区的中部是显著的低值集聚区,并对各个区域检验其显著性.

The Economic Area LCCI of Guanzhong—Tianshui areas is analyzed by the related spatial autocorrelation model of the Guanzhong—Tianshui agricultural economic data from 1978 to 2008.The results showed：The area of cultivated land in the economic rapidly declines,but the population expands.The LCCI spatial distribution pattern is ＂city high,east higher and west lower＂.The spatial distribution showed a high degree of positive global spatial autocorrelation.The distribution characteristics of local spatial autocorrelation： the city area and Tianshui area is significantly high value of the gathering area,the middle of Guanzhong—Tianshui areas is a significant lower concentration zone,which tests their various regions significantly.