What is phenological phenomenon 15 and what is phenological phenomenon

Phenological phenomena are very extensive, and those natural phenomena in nature that are affected by the environment (climate, hydrology, soil) and occur in an annual cycle belong to phenological phenomena. There are three aspects:

1) Plant phenology, also known as crop phenology, such as various plant germination, leaf development, flowering, leaf discoloration, defoliation and other phenomena, phenological phenomena in the growth period of crops. (2) Animal phenology, such as migratory birds, insects and other animal migration, initial song, final song, hibernation and other phenomena.

3) Various hydrological and meteorological phenomena, such as first frost, final frost, freezing, ablation, first snow, final snow and other natural phenomena.

Lidong broad beans and small snow wheat, a lifetime of catching up"; "Planting oil in October is not enough for my wife to rub her head" is a summary of the lessons of failure, reminding people to seize the season and not miss the agricultural time.

The agricultural proverb that sesame seeds have two petals on the head, but they are afraid of being deep and not afraid of shallow" vividly illustrates the different requirements of monocots (such as millet) and dicots (such as sesame) for sowing depth.

When the seedlings get up, they need a snack", using "dim sum" as a metaphor for the role and amount of fertilizer, which is just right. Growing wheat in winter without ash fertilizer is a big problem, and the agricultural proverb uses "no ash no wheat, no wine and no treats" to emphasize the importance of ash fertilizer. Rice lacks nitrogen fertilizer, leaves are yellow, and more fertilizer is urgently needed, and the agricultural proverb uses "rice is yellow, and the owner owes it money for soybean cakes".

After the corn is topped, it can promote the growth of the plant strongly, and the cob is thick, and the agricultural proverb uses "the corn goes to the head, and the strength is as big as the cow" to metaphorize, and others such as "sweet potatoes are not shy, and they are planted until autumn", "planting grass and river mud, and the children's sugar stalk water chestnut", "show the rice yellow, eat a piece of sugar; Show rice black, no food" and so on are lively and profound good agricultural proverbs.

Cutting off the wheat roots, cutting off the grinding heart", that is, the wheat needs to be cultivated diligently, and the yield can be increased after cultivation, but he does not need to increase the yield and other explicit words, but when he says wheat processing, grinding a large amount of wheat flour, the grinding heart may be broken, so as to encourage people to do a good job in the field.

Phenology refers to the natural phenomena that occur in an annual cycle due to the influence of the environment (climate, hydrology, soil), such as the germination, leaf development, flowering, leaf discoloration and deciduous foci of trees and flowers. southward flight, northward migration, beginning song, final song, first sight, extinct sight, etc. of migratory birds (swallows, cuckoos, geese, etc.) and insects (cicadas, crickets, etc.); Some hydrometeorological phenomena, such as the freezing, flow and (complete) melting of lakes and rivers, as well as the first snow, the last snow, the first frost, the date of the final frost, etc. The weather can be a more intuitive indication of the changes of the natural seasons. Nowadays, it is more popular to divide the seasons according to phenological indicators, for example, Beijing uses the date of the blue of wild grass (sheep's beard grass) and the melting of the North Sea as the indicators of the beginning of spring, and the blooming of Robinia pseudoacacia as the beginning date of summer.

The advantages of using phenological indicators to divide and indicate the seasons are: phenological indicators are living indicators, which can reflect the early and late, long and interannual changes of climate and growing seasons, and can better reflect the differences between regions in climate and agricultural climate, and the indicators are intuitive, simple, reasonable and easy to remember.

1. Organisms adapt to the periodic changes of temperature conditions for a long time and form a corresponding growth and development rhythm, which is called phenological phenomenon.

2. It mainly refers to the growth, development, nucleus, activity law and abiotic changes of animals and plants to the response of coarse digging syndrome. For example, winter bud germination, leaf pulling, flowering, fruiting, and defoliation of plants; The dormancy, recovery, initiation, mating, simple breeding, moulting, and migration of animals are all closely related to the festival. Abiotic phenomena, such as the first frost, first snow, freezing, thawing, etc., are also called phenological phenomena.

Nature has always been shrouded in a veil of mystery that can be daunting and beneficial. Phenological phenomena are a peculiar natural phenomenon, phenological phenomena refer to those natural phenomena in nature that occur under the influence of climate, hydrology, soil, etc., with an annual cycle, and are also the earliest natural phenomena used by people to judge the seasons.

The phenological phenomena of nature are wonderful and mysterious, the ancient working people of our country in the absence of modern high-tech satellites to observe the climate, is to judge the climate according to the changing characteristics of phenological phenomena, so as to make plans for their own production and life, and there are poets according to the phenological phenomenon Lu Lu to compose poems, such as the early blue land tour of "Tianshan August frost and dry grass, Yanggu three watch day bathing waves".

1. Phenological phenomena refer to those natural phenomena in nature that are affected by climate, hydrology, soil, etc., and are also the earliest natural phenomena used by people to judge the seasons.

2. For example, plant phenology, also known as crop phenology, such as the phenomenon of germination, leaf development, flowering, leaf discoloration, and defoliation of various plants, and the phenomenon of material infiltration in the growth period of crops; animal phenology, such as migratory birds, insects and other animal migration, initial song, return to final song, hibernation and other phenomena; Various hydrological and meteorological phenomena, such as first frost, final frost, freezing, ablation, first snow, final snow and other natural phenomena.

1. Phenological phenomena refer to those natural phenomena in nature that are affected by climate, hydrology, soil, etc., and take the year as the cycle.

2. For example, sensitive nucleus, plant phenology, also known as crop phenology, such as the germination, leaf development, flowering, discoloration of tall leaves, defoliation, etc., and phenological phenomena in the growth period of crops; Animal phenology, such as migratory birds, insects and other animal migration, initial song, final song, hibernation and other phenomena; Various hydrological and meteorological phenomena, such as first frost, final frost, freezing, ablation, first snow, final snow and other natural phenomena.

Phenological phenomena refer to the regular changes in trees during the year with seasonal changes in climate, such as budding, branching, leaf development, flowering, fruiting, defoliation, and dormancy.

Phenological phenomena are very extensive, and those natural phenomena in nature that are affected by the environment (climate, hydrology, soil) and are known as annual cycles belong to phenological phenomena.

Nature has always been shrouded in a veil of mystery, which is daunting but also beneficial. Phenological phenomena are a peculiar natural phenomenon, phenological phenomena refer to those natural phenomena in nature that are affected by climate, hydrology, soil, etc., with an annual cycle, and are also the earliest natural phenomena used by people to judge the seasons.

The phenological phenomena in nature are wonderful and mysterious, and the working people of ancient China judged the climate according to the changing characteristics of phenological phenomena under the condition that there were no modern high-tech satellites to observe the climate, so as to make plans and arrangements for their own production and life.

Historical records of plant phenological periods

The earliest phenological records in China can be found in the Book of Songs, the Hidden Wind, and the Seventh Month before 1,000 B.C., and the subsequent Xia Xiaozheng, Lü's Spring and Autumn Period, the Twelfth Chronicle, Huainanzi, Shi Zexun, and Notes on the Moon Order, etc., have recorded the phenological calendar of the whole year on a monthly basis. The "Yi Zhou Shu Shi Xun Interpretation" divides the whole year into 72 phases, and records the phenology of each five days, which has become a more complete phenological calendar, which was attached to the almanac in the Northern Wei Dynasty.

In the Western Han Dynasty, the famous agricultural work "The Book of Bisheng" has a record of using phenology as an indicator to determine the cultivation period, such as "Xingshi Huarong, ploughing light soil and weak soil; Look at the apricot blossoms and resume farming. At the end of the Southern Dynasty, Lu Zuqian, a native of Jinhua (Wuzhou) in Zhejiang, recorded the phenology of Jinhua in the seventh and eighth years of Chunxi in the Southern Song Dynasty, with 24 kinds of plants such as plum, peach, plum, plum, apricot, bauhinia, begonia, orchid, bamboo, bean knotweed, hibiscus, lotus, chrysanthemum, hollyhock and daylily, and the time when the spring warbler first arrived and the first song of the autumn insects.

Which solar term reflects phenological phenomena.

Among the 24 solar terms, the solar terms that reflect the seasons with phenology are: Xiaoman, Mango, and Stinging.

1.Sting, indicating that insects hibernate, animals and so on have woken up, indicating that spring is coming.

2.Xiaoman, which means that the grains of summer crops are beginning to fill full, but they are not yet ripe.

3.Miscanthus means ripe crops.

The solar terms that reflect the seasons in terms of climate conditions are: small heat, big heat, summer heat, small cold, big cold, rain, valley rain, light snow, heavy snow, white dew, cold dew, and frost.

What is phenology and phenology?

Phenology is mainly a science that studies the interrelationship between the periodic changes of plants (including crops), animals and environmental conditions (climatic, hydrological, and soil conditions) in nature, and its purpose is to understand the laws of natural seasonal phenomena in order to serve agricultural production and scientific research.

Phenology is to talk about the process of the moon, dew, wind, clouds, flowers, and birds in a year. Phenology is the accumulation of weather over many years, and the two are subordinate.