The key ecological function area plays an important role in providing ecosystem service. As the main players of economic activities in this area, the excessive dependence of local farmers on environmental resource will seriously influence ecological environment quality, and thus impair the ecosystem service. At present, it is urgent to explore the dependence of farmers' livelihoods on environmental resource and its influencing factors in key ecological function areas, which would provide reference for the formulation of environmental friendly regional development policies. We selected the Gannan Plateau as study area. Based on 581 survey data, we analyzed the dependence of farmers' livelihood on environmental resource, and used the ordinal multi-class Logistic regression model to identify its key impact factors. The results showed that local farmers were highly dependent on environmental resource in Gannan Plateau, which was mainly reflected in three aspects of food self-sufficiency, daily energy consumption and income source, with the dependence of 57.3%, 56.9% and 37.4%, respectively. There were significant differences in the dependence of different types of farmers' livelihoods on environmental resource, in that farmers with higher levels of education and higher non-agricultural levels had lower dependence and the farmers with high dependency ratio were more dependent on environmental resources. The factors including family dependency ratio, labor education level, proportion of migrant workers in labor force, family member leadership, ecological policy, and altitude had significant impact on farmers' environmental resource dependence. Among them, family dependency ratio and altitude had positive impact on it, while the proportion of migrant workers in labor force, labor education level, family member leadership, ecological policy had negative impact.
重点生态功能区承担着重要的生态系统服务供给功能,农户作为该区主要的经济活动主体,其对环境资源过度依赖会严重影响该区的生态环境质量,从而使生态系统服务功能受损。当前亟需深入探索重点生态功能区农户生计对环境资源的依赖性及其影响因素,为制定环境友好型区域发展政策提供借鉴。本研究以甘南高原为例,基于581份农户调查数据,分析了农户生计对环境资源的依赖度,并利用有序多分类Logistic回归模型识别了影响农户环境资源依赖度的因素。结果表明: 甘南高原农户生计对环境资源的依赖度较高,其主要体现在食物自给、生活用能、收入来源3个方面,依赖度分别为57.3%、56.9%和37.4%;不同类型农户生计对环境资源的依赖性存在显著差异,劳动力受教育水平较高及非农化水平较高的农户,对环境资源的依赖度较低,而抚养比系数较高的农户对环境资源的依赖度较高;家庭抚养比、劳动力受教育水平、家庭成员领导能力、外出打工人数占劳动力比重、生态政策、海拔等因素均对农户的环境资源依赖度有显著影响。其中,家庭抚养比、海拔对其具有正向影响,而外出打工人数占劳动力比重、劳动力受教育水平、家庭成员领导能力、生态政策等因素对其表现为负向影响。.
Keywords: Gannan Plateau; dependence; environmental resource; farmer; key ecological function area; livelihood.