1. Point like geographical things: such as the spatial distribution of cities, the distribution of mineral resources, etc
(1) Description of distribution
Point shaped geographical objects generally have smaller scales. When describing, one should consider a wide range: the size of the point represents the meaning and reflects geographical principles.
【 Description angle 】 The density of points, along which lines (surfaces) they are dense, and along which lines (surfaces) they are sparse; The shape formed by points reflects the density pattern.
(2) Description of changes
Pay attention to changes in the number, location, and direction of points, and sometimes also to whether the size of points has changed.
[Description angle] Changes in quantity, position, level (size), etc
2. Linear geographical objects: such as annual precipitation lines, isotherms, rivers, transportation lines, mountains, etc
(1) Description of distribution
Pay attention to the starting and ending points of things, the changes along the way, and the direction of things when reading pictures; Pay attention to the connections between different geographical knowledge in the same space, understand the internal connections between different things, and form a structural system of spatial location and mutual influence of geographical things.
(2) Description of changes
The development and changes of linear geographical things can mostly be classified into several categories, with the common being that a certain geographical element develops and changes over time or distance.
[Description angle] The description angle of the development and changes of linear geographical things: trend, segmentation (stage), and speed of change (speed).
