Application of phenology knowledge in expository writing

1, apricot blossoms are in bloom, just like nature is telling us to cultivate the land quickly; The peach blossom is in bloom ... what does it sing: "Grandpa and Grandma, cut the wheat and insert the grain." (for example)

Function: It shows that the working people attach importance to the relationship between natural phenomena such as the rise and fall of vegetation and the coming and going of migratory birds and the climate, and arrange farming accordingly.

2. These natural phenomena were called phenology by working people in ancient China. (definition)

Function: However, we accurately understand the concept of phenology.

3. Using phenology knowledge to study agricultural production has developed into a science, namely phenology. (definition)

Function: However, we accurately understand the concept of phenology.

4. Phenological observation uses "living instruments" and living organisms. (symbolically)

Function: Compare living things to "living instruments". The importance of "living instrument" to phenological observation is vividly written.

5. 196 1 The flowering period of peach, apricot blossom, apple, elm leaf plum, Xifu begonia, clove and Robinia pseudoacacia is about ten days later than 19 1 and five or six days later than 1962. (example, comparison)

Function: Explain the importance of phenology to agriculture from the opposite side.

6. Peach blossoms in Nanjing bloom 20 days earlier than in Beijing ... only 10 days earlier than in Beijing. (for comparison)

Function: Latitude is an important factor affecting the coming of phenological phenomena.

7. At the turn of autumn and winter, Wan Li is clear, and the temperature is inversely proportional to a certain height. This is called inversion layer. (definition)

Because cold air is heavy, it flows to lower places on windless nights. This phenomenon is very obvious in autumn and winter in mountainous areas, especially in the morning of these two seasons. It is often found that there is frost at the foot of the mountain and frost at the mountainside. (Interpretation)

Function: Use the following definitions and explanations to make us more clear, and let us understand that the third factor affecting phenology is the difference between high and low.

8. According to the long-term phenological records in southern England, the average early spring oil green and flowering dates of seven trees in 174 1 750 were compared with those in 192 1 to 1930. (For example, for comparison)

Function: Explain that there is a difference between ancient times and modern times in the morning and evening of phenology.