River system is an open system integrating various elements such as economy, society and entironment, in which substance and energy have direct or indirect exchanges through the activities concerned with water and thus there is evolution in different ways
River system is an open system integrating various elements such as economy, society and entironment, in which substance and energy have direct or indirect exchanges through the activities concerned with water and thus there is evolution in different ways
摘要河流系统是一个经济社会、自然资源、生态环境相互耦合的开放系统，它通过水事活动直接或间接地与外界进行物质与能量交换，促使系统形成不同时空演化格局。