生态系统具有商品和服务的属性,人类的生产和生活依赖于这些商品和服务。生态系统提供的商品和服务所体现的价值是人类从系统中获取的环境收入。农村家庭从公共共享资源中以不同途径获得的环境收入,用于家庭成员消费和商品交换。公共资源支撑力的衰退,迫使人们加强生态系统支撑能力建设。 Ecosystems have the attributes of goods and services that depend on these goods and services. The value embodied in goods and services provided by ecosystems is the environmental income that human beings derive from the system. The environmental income obtained by rural families from public shared resources by different means is used for the consumption of family members and the exchange of goods. The decline of public resources support forces people to strengthen the capacity of ecosystem support.