Phenology is a science that relates climate or meteorological changes in different periods with other phenomena in nature, but in fact it is concerned with biological phenomena. For example, according to the investigation of germination, flowering, leaf spreading, red leaves and fallen leaves of plants in different places, we can compare the climates in different places.

2. Match the height difference with the height of the plant.

The external morphological characteristics of plant community are determined by the height of community, skyline, forest edge line and seasonal changes. Da Qiao can build a tall plant community, which is composed of vegetation, flowers and small trees in parallel, with colorful forest edge lines. Pay attention to the appearance of the community, and the design should be open, dense and relaxed, full of seasonal and tonal changes.

3. Use the theme to highlight the characteristics of the landscape

The theme here is usually divided into two parts: hard landscape and soft landscape.

Hard landscape usually includes four parts: walking environment (including ground pavement, steps, ramps, retaining walls, fences, railings, fences and guardrails), landscape facilities (including lighting, seats, garbage bins, sculptures, telephone booths, information signs, bollards, planting containers and bicycle parking lots), activity places (playgrounds, leisure squares and sports fields) and vehicle environment. Among them, there are two parts that can be used for theme landscape:

(1) Decorate hard landscape

Decorative hard landscapes are mainly street sketches, which are divided into two categories: sculpture sketches and gardening sketches. Modern sculpture works have a wide range of types, materials and themes, and gradually become an important part of landscape design. Gardening sketches include rockeries, landscape walls, flower stands, flower pots and so on. This kind of landscape is mainly set for decoration, which has the characteristics of beautifying the environment and pleasing to the eye, and embodies the beautification function of hard landscape.

(2) Comprehensive functional hard landscape

Some hard landscapes are both practical and decorative. Such as lamps, sinks, stools, pavilions, etc. In the facilities sketch, there are both functions of use and beautification and decoration; Rockery, flower stand, fountain, etc. Decorative sketches are not only the objects to watch beautiful scenery, but also a good place for people to rest and play. This comprehensive hard landscape design embodies the coordination and unity of form and function, and is widely used in modern landscape design.