|
|||||
|
|
| 不同劈草时间毛竹林的生长特征 | |
| 引用本文： | 范少辉,刘广路,官凤英,蒋俊明,郑宏.不同劈草时间毛竹林的生长特征[J].四川农业大学学报,2011,29(3):322-326. |
| 作者姓名： | 范少辉 刘广路 官凤英 蒋俊明 郑宏 |
| 作者单位： | 1. 国际竹藤网络中心竹藤科学与技术重点实验室,北京,100102 2. 四川省林业科学研究院,成都,610081 3. 福建省洋口国有林场,福州,366000 |
| 摘 要： | 林分结构是林分各项功能正常发挥的保证,探索经营时间梯度上的竹林结构特征,可以为制定合理的结构调整技术提供理论支持.本文对不同劈草时间毛竹林的生长特征及其影响因子进行了调查研究.结果表明,胸径、树高和新生竹株数与经营时间显著或极显著相关.随着经营时间的延长,毛竹林胸径、树高呈先上升后下降的趋势,新生竹株数呈下降趋势.经营... |
| 关 键 词： | 毛竹林 生长特征 影响因子 |
The Growth Characteristics of Phyllostachys pubescens Forest at Different Operation Time |
|
| FAN Shao-hui,LIU Guang-lu,GUAN Feng-ying,JIANG Jun-ming,ZHENG Hong.The Growth Characteristics of Phyllostachys pubescens Forest at Different Operation Time[J].Journal of Sichuan Agricultural University,2011,29(3):322-326. | |
| Authors: | FAN Shao-hui LIU Guang-lu GUAN Feng-ying JIANG Jun-ming ZHENG Hong |
| Abstract: | The function of forest stand is based on the structure of forest.To explore the bamboo structure at operating time can provide theoretical support for the reasonable structure-adjustment technology.The growth characteristics and influence factors were investigated in bamboo forest.The results showed that there was extremely significant correlation between the operation time and the DBH,height of bamboo as well as the number of new bamboo.The DBH and height of bamboo increased in the first ten years,and then decreased with the operation time.The number of new bamboo decreased with the operation time.The DBH reached the maximum 11.24 cm,and the height of bamboo reached the maximum 14.79 cm within ten years.Afterwards,both the DBH and the height of bamboo decreased gradually.30 years later,the DBH decreased by 13.61% and the height of bamboo decreased by 7.71%.The results can be evidence for the argument of productivity degradation of bamboo forest with operation time.The path analysis showed that both direct path coefficient and indirect path coefficient of operation time to DBH and height of bamboo were largest.Therefore,the index of DBH and height of bamboo can reflect the productivity degradation of bamboo with operation time. |
| Keywords: | bamboo forest growth characteristics influence factors |
| 本文献已被 万方数据 等数据库收录！ | |