山西吕梁连片特困区农业经济发展评价及其时空分布特征

以山西吕梁连片特困区所辖13个国家级贫困县作为研究对象，获取研究片区2007—2014年共8年的农业经济发展状况数据，以农业经济贫困为切入点，采用主成分分析法对片区的农业经济发展状况进行评价，同时探讨片区农业经济发展的时空分布特征。结果表明：农业机械和农业化肥的过度使用，造成土壤环境恶化，导致山区贫困加重；吕梁山区农业经济发展状况在空间上呈先增后减的变化趋势，山区东北部和东南部出现低值，中部出现高值，表明山区中部的农业经济发展状况较好。研究结果希望对山西省贫困地区未来生态环境质量变化、农业经济发展的研究提供参考。

Evaluation of Agricultural Economic Development and Its Spatial-temporal Distribution in Contiguous Dire Poverty-stricken Areas of Lvliang District in Shanxi

In this research, based on the survey data from thirteen national-level poverty-stricken counties of Lvliang City, for the agricultural economy poverty as the point of penetration, we use the principal component analysis to evaluate the status of agricultural economy development from 2007 to 2014. We also discussed the characteristics of spatial and temporal distribution of agricultural economy development. The results showed that: in Lvliang District, agricultural machineries and chemical fertilizer were overused. This induced environmental degradation in the soil. Then the poverty in this District was aggravated. The development of agricultural economy showed a trend of increment first and then decrement at the spatial scale in this District. The small values were in the northeast and southeast of this District. The great values were in the central of this District. The status of agricultural economy development was better in the middle parts of this district. These results are wished to be referred by studies on changes of future environment quality and on development of agricultural economy at poor areas in Shanxi Province.