Characteristics and phenology of solar terms in beginning of winter —— A brief introduction of beginning of winter

1. Climate characteristics of beginning of winter: the transition from dry and little rain to rainy and cold.

2. The beginning of winter solar phenology: water begins to freeze; Ground freezing; When the pheasant enters the flood, it becomes a stork. The ancients in China divided beginning of winter into three stages: "Water waits for ice; The second waiting place began to freeze; Waiting for the flood is a cockroach. " At this point, water can already form ice; The land also began to freeze; The pheasant in the flood is a pheasant, which means a big bird like a pheasant. The pheasant is a big clam. After beginning of winter, big birds like pheasants were rare, but you can see big clams with similar lines and colors at the seaside. Therefore, the ancients thought that pheasants would become big clams in early winter.