农业土地利用动态的空间高分辨率模型

A spatial high‐resolution model of the dynamics of agricultural land use

Agricultural Economics · 2008
被引 7
人大 A-

中文导读

基于广义线性混合模型,提出一个空间显式且动态的农业土地利用模型,允许农户行为异质性,并用西班牙下瓜达尔基维尔地区数据验证,发现忽略异质性和时空自相关会导致结果偏差。

Abstract

Abstract An area model is presented for agricultural land use, based on a generalized linear mixed model. This model is spatially explicit and dynamic and, although it uses aggregated data, allows for heterogeneity of behavior among individual farmers. The parameters of the fixed component of the model are obtained using an estimation equations approach, and the structure of spatiotemporal correlation is assessed using empirical semivariograms. The model is illustrated using as an example the dynamics of agricultural land use in the Lower Guadalquivir area in Spain. A simulation study indicates that the model gives poor results if the heterogeneity of individual behavior and spatiotemporal autocorrelation are ignored.

农业土地利用空间高分辨率模型广义线性混合模型异质性