摘要
采用Logistic曲线经验式拟合橄榄竹的出笋规律，并对不同时期、立竹年龄、土层的出笋、退笋、成竹情况进行调查分析。研究结果表明：出笋量日进程符合Logistic曲线的“慢一快一慢”规律。由此其出笋期可划分为3个时期。研究结果也表明：不同时期、不同立竹年龄、不同土层的出笋、退笋、成竹存在明显差异。橄榄竹适宜留笋的时期为出笋中期。适宜留笋养竹的立竹年龄以1、2年生为好。橄榄竹不同竹龄发笋能力，与毛竹差别甚大。橄榄竹发笋早，1年生竹连着的鞭可孕笋成竹，竹寿命较短。这就要求在经营管理上要有别于毛竹。橄榄竹适宜留笋养竹的土层深度16～30cm。本研究为橄榄竹制定留笋养竹保育技术提供了可借鉴的理论依据。
The empirical formula of Logistic curve was usedto fit the shoot emergence law of Acidosasa gigantea through the investigation of the culm age, shoot emergence and degradation and culm growth in this paper. The results showed that the diurnal production of bamboo shoot was in accordance with Logistic curve of ＂Slow-Fast-Slow＂ and could be divided into three periods. There were significant differences in the shoot emergence and degradation and culm growth between the culm ages and the soil layers. The shoots in the middle period and from one or two-year-old culms were fit for keeping as culm. There was a great difference in shoot emergence between the ages of Acidosasa gigantea and very different from the Phyllostachys edulis, The former was earlier than the later in shoot emergence, while the life expectancy was shorter than the later. The proper soil layer for keeping bamboo shoot was about 16 -30 cm.
出处
《林业科技开发》
2010年第1期98-100,共3页
China Forestry Science and Technology
关键词
橄榄竹
出笋规律
保育技术
Olive bamboo
Regularity of producing bamboo shoot
Nursing technology
