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西北地区农业技术扩散环境的空间分异——以陕、甘、宁县域为例

DOI: 10.11820/dlkxjz.2013.04.014, PP. 618-626

Keywords: 空间自相关,扩散环境,农业技术,陕甘宁地区

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Abstract:

农业技术扩散环境量化与评价可为农业技术的时空扩散提供有益的参考。本文以陕甘宁3省(区)169个县(区)为研究对象,选取衡量农业技术扩散环境的12个指标,运用主成分分析法计算县域分值并分析其差异,同时运用GeoDa软件提供的Moran'sI指数和LISA地图等方法描述其空间特征。分析结果表明①影响三省(区)县域农业技术扩散环境的主因子为农业产出效率及文化环境、农业资源禀赋条件和农业投入水平;②三省(区)县域农业技术扩散环境水平存在显著差异,地理空间上存在集聚性;③“热点”县域集中分布在关中地区、河西走廊和宁夏北部引黄灌溉区,“冷点”县域分布在甘肃中南部地区;④西北地区农业技术扩散环境空间分异主要是由于自然条件与社会经济文化的空间差异所致。

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