What plants grow in temperate zones?

Temperate zone, the concept of climatology, refers to the climate zone between subtropical zone and polar zone. Temperate zone has broad sense and narrow sense. Broadly speaking, all areas except the frigid zone and tropical zone belong to temperate zone, so subtropical zone and sub-frigid zone belong to the category of generalized temperate zone. Temperate zone in a narrow sense does not include subtropical zone and sub-frigid zone. Temperate climate, large temperature difference between winter and summer. The change of temperature in four seasons is the most remarkable feature of temperate climate.

Temperate climate is the most widely distributed climate type in the world. Due to the wide geographical distribution and complex types of temperate climate, it has created a good climate environment for the biological world and formed a colorful world of animals and plants. In terms of plant species, there are summer green broad-leaved forest, coniferous forest and mixed coniferous and broad-leaved forest, and there are also grasslands, semi-deserts and deserts in the mainland. Animals that are good at running and flying live in grassland areas; Large carnivores live in the broad-leaved forest; There are some hardy animals living in coniferous forests.

The extratropical cyclone is an elliptical air vortex that appears in the middle and high latitudes and the central pressure is lower than the surrounding area. It is one of the important weather systems that affect large-scale weather changes. The average diameter of extratropical cyclones is 1000 km, ranging from several hundred km to over 3,000 km. The cyclone moves eastward with the airflow to the west of the upper air, with a warm front before and a cold front after, and the south side of the fluctuation at the junction of the two is a warm area.

The whole life cycle of extratropical cyclones from generation, development to extinction is generally 2-6 days. Sometimes 2-5 extratropical cyclones will be formed one after another on the same front, and they will advance from west to east in turn, which is called "cyclone family". Temperate cyclones have an important influence on the weather changes in middle and high latitudes. Rainy weather, sometimes accompanied by heavy rain or strong convective weather, sometimes the maximum wind force near the ground can reach more than 10.