不同经营措施对毛竹材用林竹材生物量的影响

Effect of Different Management Measures on the Growth of Phyllostachys pubescens Stands for Culm

开展毛竹材用林不同抚育垦复措施、施肥水平和竹林密度对其生物量的影响分析研究,结果表明:经过集约经营的毛竹材用林的株高和胸径分别为16.5m、12.0cm,优于一般经营的竹林;以深翻松土加施复合肥的新竹胸径、新竹数分别比对照增加38.8%、130.4%;施肥量以施复合肥750kg/hm2为宜;在密度为4050株/hm2左右的新竹株数最多,是一个较适宜的密度;喷灌、覆盖、深翻和施复合肥是值得今后大面积推广的集约经营措施。

The thesis studies how different measures of raising and reclaiming,different levels of fertilizting and different density of Phyllostachys pubescens grove influence biological yield of P.pubescens wood.The result shows that the growth of height and diameter of planted P.pubescens wood through intensive management is 16.5m、12.0㎝,what is better than that through the general management.The ratio of height to diameter and the number of new P.pubescens which are managed by loosening the soil by harrow and compound fertilizing is respectively higher by 38.8% and 130.4% than one through general management.The amount of compound fertilizing of 750kg/hm2 is the best of all.The P.pubescens ramet density（4050 plants of per hectare） in which the plant of new Phyllostachys is the most is fitting.The measures of intensive management such as sprinkler irrigating、covering、subsoiling and compound fertilizing are worth popularizing extensively.