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本文是大面积开花苦竹Pleioblastus spp.复壮技术试验的总结。经过1984—1988年5年的试验,取得了明显的效果,试验结果表明:1.削草松土加施尿素是苦竹复壮最有效措施,试验第五年(即1988年)的新竹,木苦竹(PL.amarus(Keng)Keng t.)每亩立竹量达3196株,平均地径2.09厘米,平均高度445.8厘米,蓄积达2237.2公斤,与封山育竹12年的竹林比较,立竹量增长4.74倍,蓄积量增长7.48倍;同期,青苦竹(PL.amarus var PendulifoliusS.Y.Chen)立竹量每亩比封山12年的竹林增长2.462倍,蓄积量增长2.13倍。2.削山松土是苦竹提前复壮的基本措施。采取这一方法,5年就可使竹林恢复正常生长,其88年木苦竹每亩立竹量达到1908株,平均地径1.77厘米,平均高度395.7厘米,蓄积达954公斤,比封山12年的竹林每亩立竹量增长2.831倍,蓄积量增长4.04倍;同期,青苦竹立竹量比封山12年的竹林每亩增长1.657倍,蓄积量增长1.289倍,复壮时间可比封山提前5—6年。
This article is a summary of a large area Pleioblastus spp. After 1984-588 years of five years of tests, and achieved significant results, the test results show that: 1. Cut grass tillage with urea is the most effective measures to rejuvenate Pleurotus, the fifth year of testing (1988) Hsinchu, wood bitter bamboo (PL.amarus (Keng) Keng t.) The number of bamboo stands per acre reached 3196, with an average diameter of 2.09 cm and an average height of 445.8 cm, accumulating up to 2237.2 kg. An increase of 4.74 times and an increase of 7.48 times in volume. In the same period, P. bambus var. Pendulifolius S.Y.Chen rose 2.462 times and accumulated 2.13 times more than that of the bamboo forest closed in 12 years. 2 cut loose soil is the basic measures to rejuvenate bitter bamboo in advance. Take this method, 5 years can make the bamboo forest return to normal growth, its 88 years of bamboos per mu of bamboo reached 1908, an average diameter of 1.77 cm, an average height of 395.7 cm, accumulation of 954 kg, 12 years than the closure Of the bamboo forest per mu of bamboo increased 2.831 times, volume increased 4.04 times; the same period, green bitter bamboo than closed mountain 12 years of bamboo increased 1.657 times per mu, stock volume increased 1.289 times, rejuvenation time than closing hill 5 -6 years.