It's very hot
The weather is very hot.
Weather refers to the specific state of the atmosphere near the surface in a certain area in a short time. The weather phenomenon refers to various natural phenomena in the atmosphere, that is, the comprehensive expression of the spatial distribution of various meteorological elements in the atmosphere (such as temperature, pressure, humidity, wind, clouds, fog, rain, flash, snow, frost, thunder, hail, haze, etc.) in an instant.
the weather process is the change process of weather phenomena in a certain area with time. All kinds of weather systems have certain spatial and temporal scales, and they are intertwined and interact with each other.
the combination of many weather systems constitutes a large-scale weather situation, and constitutes the atmospheric circulation in the hemisphere and even the whole world. The weather system is always in the process of constant rebirth, development and extinction, and has its corresponding weather phenomenon distribution in different development stages.
wind is one of the environmental factors of agricultural production. Moderate wind speed plays an important role in improving farmland environmental conditions. The heat exchange in the surface layer, evapotranspiration in farmland and the transportation of carbon dioxide and oxygen in the air are accelerated or strengthened with the increase of wind speed.
Wind can spread pollen and seeds of plants and help them pollinate and reproduce. Wind energy is widely distributed and inexhaustible. Monsoon prevails in China, which is beneficial to crop growth. There are abundant wind energy resources in Inner Mongolia Plateau, Northeast Plain, Southeast Coast and inland mountains, which can be used as energy resources.
wind can also have negative effects on agriculture. It can spread pathogens and spread plant diseases. High-altitude wind is a meteorological condition for the long-distance migration of pests such as armyworm, rice planthopper, rice leaf roller and locust. Strong wind causes mechanical abrasion of leaves, lodging of crops, broken trees and falling flowers and fruits, which affects the yield. Strong winds also cause soil erosion and sand dunes to move, and destroy farmland.
If land is reclaimed blindly in arid areas, wind will lead to land desertification. Strong winds and snowstorms in pastoral areas can disperse herds and aggravate freezing damage. Some special properties of local winds often cause wind damage.
Tidal winds with high salinity, high-temperature and low-temperature foehn winds and dry-hot winds blowing from the sea have seriously affected the flowering, fruit setting and grain filling of fruit trees. To defend against wind damage, wind-resistant varieties with dwarfing, lodging resistance and friction resistance are often cultivated. Building windbreaks and setting up wind barriers are more effective windbreaks.