基于结构方程模型的农户经营非木质林产品行为的影响因素分析——以四川省雅安市农户为例

Analyses of Factors Influencing the Households' Behavior in Non-Timber Forest Products Management with Structural Equation Modeling(SEM):A Case Study in Ya'an City of Sichuan Province

以四川省雅安市3县的246户农户为样本,采用结构方程模型分析影响农户经营非木质林产品行为的主要因素。结果表明:外部环境特征对农户经营非木质林产品行为的影响最大,其次是林地禀赋特征,农户家庭特征的影响最小;外部环境特征的测量变量中,农户对政府扶持林业经济发展政策的了解程度、外部培训、农户间的影响、经营林地的机会成本对农户经营非木质林产品的行为均有显著影响;林地禀赋特征的测量变量中,林地的细碎化程度、肥沃程度、离家距离影响显著;林业收入占农户家庭总收入的比例是农户家庭特征测量变量中最显著的影响因素。

In this study, 246 households in three counties in Ya＇an city of Sichuan Province were surveyed regarding their non-timber forest products management, and factors influencing their behavior in the non-timber forest products management were analyzed based on structural equation modeling （SEM）. The resuhs showed that the external environment of households management forestland had the most impact on the households＇ behavior in the non-timber forest products management, followed by the forestland endowment, and then the family characteristics. The measurable variables of external environment, including the households＇ understanding of government policies of forestry economics, training, mutual influence between households and opportunity cost of household management forestland, all exerted significant impact on the households＇ behavior in non-timber forest products management. The measurable variables of forestland endowment, including the forestland fragmentation, the productivity of soil and the distance from home to forestland, had some effect on the households＇ behavior in non-timber forest products management. The ratio of forestry income to total revenue had the most significant influence in the households＇ family characteristics.