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What part of the structural hierarchy of living systems does a lake belong to?

Lake concept: A lake is composed of a lake basin, lake water and the substances contained in the water (minerals, dissolved matter, organic matter, aquatic organisms, etc.).

Lakes refer to low-lying areas on land that store large amounts of water that are not directly connected to the ocean, and participate in the water cycle of nature.

Therefore, any poorly drained depression on the ground can store water and develop into a lake.

Classification of lakes: According to lake water discharge conditions, they are divided into outflow lakes and inland lakes; according to the formation of lake basins, they are divided into structural lakes, crater lakes and glacial lakes, barrier lakes, karst lakes, glacial lakes, river trace lakes, wind erosion lakes, artificial lakes, etc.; according to lake basin formation

Thermal conditions are divided into tropical lakes, temperate lakes, and frigid lakes; according to the nutrients in the lake water, it is divided into eutrophic lakes, mesotrophic lakes and oligotrophic lakes; according to the salinity contained in the lake water, it is divided into freshwater lakes, micro (semi-) saline lakes,

Salt lake, salt lake, dry salt lake, sand lake.

Distribution of Domestic Lakes Our country has a vast territory, rich and diverse geographical forms, large numbers and diverse types. The total number of lakes is 110,000, including more than 24,000 natural lakes and more than 86,000 artificial lakes.

According to geographical location, domestic lakes can be divided into the five major lake areas, including the Qinghai-Tibet Plateau Lake Area, the Eastern Plain Lake Area, the Mongolia-Xinjiang Plateau Lake Area, the Northeast Plain Lake Area, and the Yunnan-Guizhou Plateau Lake Area. The middle and lower reaches of the Yangtze River Plain in the east and the Qinghai-Tibet Plateau in the west are the most densely populated, forming the eastern

There are two dense lake areas in the west and west.

The five famous freshwater lakes in China - Yueyang Lake, Dongting Lake, Taihu Lake, Hongze Lake and Chaohu Lake, are located in the eastern plain lake area, the middle and lower reaches of the Yangtze River and the delta area. They are intertwined with river networks and dotted with lakes.

2. Lake tourism. Definition of lake tourism. From the perspective of tourism enterprises. From the perspective of tourists, we use the changing hydrological forms, vivid natural landscapes, good ecological environment, rich cultural heritage and related recreational equipment and facilities of lakes to provide tourists with a full range of services.

service product.

Tourism experience with the purpose of experiencing the special landscape environment of the lake and carrying out various activities based on the lake. Lake tourism classification type. Location characteristics. Development means. Sightseeing tour type. Most are located in areas far away from the city. To change the way and angle of sightseeing, create

Three-dimensional, multi-level high-end tourism products for leisure and recreation are generally located in areas close to market sources such as cities or suburbs, around water and lake shores, and are built around sports and leisure and other entertainment and leisure activities (such as specialty dining, shopping, etc.)

The main health resorts are generally distributed in mountainous and forested areas far away from the city, using the lake environment and surrounding environmental landscape as the carrier. Without affecting the overall landscape beauty and destroying the ecological environment, they are combined with waterfront real estate projects to create a holiday tourism atmosphere.

Comprehensive development generally spans two or more administrative regions, with relatively ideal towns nearby as reception support, good transportation conditions, and strong accessibility. Relying on the water, lake shore and lake surroundings, in-depth development is carried out in an all-round way around food, housing, transportation, entertainment, and entertainment.

, to create a comprehensive tourist destination integrating sightseeing, leisure, vacation, recuperation, sports, adventure and other functions. Characteristics of lake tourism development. Lake resources are richer in the northwest than in the southeast. Sightseeing, leisure and vacation forms coexist. Development history of lake tourism in China

Development shows phased characteristics with the shift of the focus of tourism functions. Currently, lake tourism is in a period of vigorous development. It is a stage of transformation and upgrading based on sightseeing lakes. The core of lake tourism is transforming towards leisure and vacation. The lake space development model (1) The core of the center diffusion model

Layer - Lake tourism is a tourism activity carried out on the core waters of the lake, including sightseeing and vacation activities on the islands in the lake, health and sports activities on the water, and agricultural tourism on the water.

Main layer - Lakeside sightseeing and leisure. Sightseeing, entertainment, leisure and vacation activities in the lakeside water area, including migratory bird watching, aquarium, lakeside bathing beach, lakeside accommodation experience, etc. Expansion layer - Lakeside sightseeing and leisure including relying on the lake.

And there are all areas for sightseeing, leisure, recuperation, and conference outdoor inspection activities within a wider range (2) City-lake linkage model. Development model of lake tourism that combines urban areas and lake areas. (1) Sightseeing tourism is driven by the beautiful lake scenery.

The core features are to create a "lake tourism + cultural town + leisure +" model.

Typical cases: Lake Hallstatt in Austria, Lake Bomen in South Korea, Lake Champlain in the United States, and the Lake District in England (2) The health and vacation drive relies on the excellent ecological environment of the lake area to create a "health and wellness + lake sightseeing + cultural experience +"

model.