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刚竹原产中国中部和东南部。两千年以来,先后引入日本、朝鲜、美国和苏联等国栽培。本世纪六十年代,世界各地的刚竹发生了一次普遍性的周期性开花现象。国外刚竹的开花,最早出现于日本,始于1959年,由北部向南部逐渐连增,止于七十年代初期。苏联、朝鲜和美国的刚竹亦于1961-1974年普遍性开花。开花的持续期达20余年之久。我国中部和西北部刚竹开花始于1963年,七十年代初为开花盛期,直至1979年开花仍未停止。全国刚竹开花有由西北部经中部向东南部逐渐蔓延的趋势。刚竹花后,秆枝枯死,但幼令竹鞭和幼竹秆基仍然保持有再生能力,可以进行无性复壮更新。开花竹林经过再生竹产生阶段、新生竹形成阶段和新生竹正常生长阶段,可以逐渐恢复到开花前的竹林相。刚竹开花后更新复壮过程是较缓慢的,采用人工促进更新措施,改善竹林生长条件,需10年左右可以恢复到开花前的生产水平。
Just bamboo origin in central and southeast China. Two thousand years, has introduced Japan, North Korea, the United States and the Soviet Union and other countries cultivation. In the 1960s, a period of universal cyclical blooming occurred in the world. Foreign bamboo flowering, first appeared in Japan, began in 1959, gradually increasing from the north to the south, ending in the early 1970s. The bamboo blossoms of the Soviet Union, North Korea and the United States also prevailed in 1961-1974. Flowering duration of more than 20 years. The flowering of just bamboo in central and northwestern China began in 1963 and flourished in the early 1970s. Flowering did not stop in 1979. The flowering of the country’s bamboo has a tendency of gradually spreading from the northwest to the southeast through the central part. Just after the bamboo flower, culm branches wither, but young bamboo whip and young bamboo stems still maintain a regenerative capacity, can be asexual rejuvenation. Flowering bamboo forest after regeneration bamboo generation stage, newborn bamboo formation stage and normal growth stage of newborn bamboo, can gradually return to the pre-flowering bamboo forest phase. Just after the flowering and rejuvenation of bamboo is relatively slow, the use of artificial promotion of new measures to improve bamboo growth conditions, take about 10 years to return to pre-flowering production level.