一九七五年冬,我省普遍出现二十多年来未有的低温霜冻天气。处于盆地的成都市,气温陡降到零度以下,极端低温达摄氏(以下同)零下五点几度,比一九五五年一月五日的极端低温还低一点三度。出现时间比平常年份提早二十多天。十二月十二日至二十三日连续十二天和二十六日至三十日连续五天,日最低温度都在零度以下,并持续出现霜冻现象。由于低温出现得早,时间拖得较长,致使许多树木和苗木遭受不同程度的霜冻危害,土生土长的樟、楠和慈竹等被 In the winter of 1975, low-temperature frost weather occurred in our province for more than 20 years. In the basin of Chengdu, the temperature plummeted below zero and the extreme low temperature reached Celsius (below), a little below zero, a little lower than the extreme low temperature of January 5, 1955. Appear more than twenty days earlier than usual. December 12 to 23 consecutive days and 26 to 30 for five consecutive days, the daily minimum temperature below zero, and the continued emergence of frost. Due to the low temperature appeared earlier, the time dragged a long time, resulting in many trees and seedlings suffered varying degrees of frost damage, native of Zhang, Nan and Ci bamboo was