地块质量与农户行为的空间相关特征分析

Analysis on the Characteristic of Spatial Correlation between Land Quality and Household Behavior on the Patch Scale

采用超越对数随机前沿生产函数核算地块农户生产效率,并进一步分析农户生产效率与土地质量的空间分布规律。研究表明:资本和劳动力投入对地块质量提高均有正向影响,调研地块经营规模与生产技术效率的关系表现出近似"倒U"的规律;研究区地块质量以二等地和三等地为主;采用空间自相关分析研究,发现各乡镇农户生产效率在地域空间分布上具有较强的空间正相关关系,其中区域北部和南部乡镇农户生产效率空间聚集状态相似;土地质量分布空间异质性相对较弱,在全局中呈现高度正相关的区域主要位于中部。

Household＇s production technology efficiency was analyzed by using a Trans-log stochastic frontier production function, and the spatial distribution pattern of land quality and household＇s efficiency was dis- cussed. The results showed that the investment of capital and labor had a positive correlation with improve- ment of land quality, and land size and farmer households＇ production technical efficiency display an inverted ＂U＂ tendency. The second and third grades were primary land quality grades in this area. The household＇s production technology efficiency had remarkable positive correlation. High high aggregation area in space, and northern and southern towns had similar spatial aggregation character. Spatial heterogeneity of land quality was weak, and the remarkable positive correlation area concentrated in the middle of study region.