Starting from the basic concepts and structures of aquatic ecosystems, this book explains in a simple and easy-to-understand way the rules of action and processes between its elements and their connections with the basic functions and service functions embodied by the aquatic ecosystem as a whole, allowing readers to deeply understand the connotation of aquatic ecology from different scales. Refining the ideas and methods of water ecological restoration and listing classic cases can deepen understanding and improve operability. The first chapter systematically describes the components and interrelationships of aquatic ecology, expounds the functions of aquatic ecosystems, and analyzes the existing problems of aquatic ecology and the necessity of restoration; the second chapter focuses on the open characteristics of aquatic ecosystems, describes the impact of the basin scale on the functions and structures of aquatic ecosystems, discusses the importance of space, time and interval scales on aquatic ecological functions, and the guiding significance for the management and restoration of aquatic ecosystems; the third chapter expounds the relevant theories of moving water bodies and still water bodies represented by rivers and lakes, and summarizes them in depth The relationships, rules of action, and external manifestations between the various elements of the water ecosystem; Chapters 4 to 6 respectively elaborate on the distribution rules, influencing factors, and ecological significance of hydrology, material migration and transformation, and biological structures; Chapter 7 summarizes the purpose, rules, procedures, methods, and technologies of water ecological restoration for the practical operation of water ecological restoration; Chapter 8 analyzes the water ecosystem management mechanism based on the river and lake chief system and my country's existing water ecological problems; Chapter 9 lists classic cases of water ecological restoration at home and abroad, and analyzes their experience and inspiration.
