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Abstract
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Article Information:
Temporal-spatial Pattern of the Proportion of Grain-crop Sown Area in Henan in China from 1980 to 2012
Liu Yu, 1Ren Yanmin and Liu Qiaoqin
Corresponding Author: Liu Qiaoqin
Submitted: September 29, 2014
Accepted: February 5, 2015
Published: July 10, 2015 |
Abstract:
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In order to provide a scientific basis for the establishment of grain production policy, the temporal-spatial pattern of the proportion of grain-crop sown area at county level in Henan province is analyzed by the Kernel density method, ESDA method and spatial variogram method, using the softwares-such as GS+, ArcGIS and GeoDa. The following results are drawn based on the 126 county-scale data in 1980, 2004 and 2012. (1) The proportion of grain-crop sown area is decreased from 0.812 to 0.700 and the total disparities of the proportion of grain-crop sown area at county level in Henan province have enlarged. The distribution shapes of the proportion of grain-crop sown area typical “single peak” shape in 3 years, transforming from “spike peak” in 1980 to “broad peak” in 2004 and 2012. (2) The proportion of grain-crop sown area at county level shows a significantly trend of positive spatial correlation and similar areas cluster in space. And, the spatial continuity and constitutive property of the proportion of grain-crop sown area, as well as the mechanism of structural difference caused by spatial autocorrelation become more and more obvious and remarkable.
Key words: Henan, kernel density method, proportion of grain-crop sown area, temporal-spatial pattern, variogram, ,
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Cite this Reference:
Liu Yu, 1Ren Yanmin and Liu Qiaoqin, . Temporal-spatial Pattern of the Proportion of Grain-crop Sown Area in Henan in China from 1980 to 2012. Advance Journal of Food Science and Technology, (10): 693-703.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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