At the turn of the four rivers, the city is inclined and scattered into thousands of streams all over the house.
Plant water chestnut in the depths, rice in the depths and lotus in the depths.
The first two sentences describe the fractal characteristics of water system. "Communication" and "inclination" more or less reveal the author's observation and feelings about the irregularity and complexity of water system, which is a transcendence of plastic geometry. The second sentence is a typical depiction of water system fractal, which is accurate, vivid and full of charm. "Random work" is often called branching operation in fractal geometry (which can be accurately described by the so-called L system). Looking back from the four rivers around Wuxing City, the author sees that thousands of streams and streams are constantly diverging, forming a bifurcated fractal diagram as a whole. The fractal of water system creates the fractal of residential distribution. The water system in nature was originally formed by the gradual convergence of thousands of streams and streams, and villages were formed by people choosing water to live in, all of which are fractal structures. The author uses the personification technique used by poets, as if he first obtained the fractal distribution of residential areas, and then the river began to disperse into thousands of streams and streams, so as to approach thousands of households outside Xing Wu. Water system is the fractal of natural geographical system, and residential distribution is the fractal of human system. The two fractal images are inextricably intertwined, which not only shows the unique aesthetic charm, but also reflects the kindness of Mother Earth.
Geographical fractal creates the fractal characteristics of meteorology, and geographical fractal and meteorological fractal jointly create the fractal characteristics of ecological environment, which leads to the diversity, difference, correlation and complexity of animals and plants and forms the fractal characteristics of plant ecosystem. The last two sentences of the poem show that the author has realized this ecological fractal to some extent. Through the image description of crop intercropping, the ecological diversity brought by river fractal is reflected, which further enriches the connotation of fractal description of water system in the poem.