| 小陇山林区抚育间伐对华山松人工林生长的影响 |
| |
| 引用本文： | 胥富强,王齐,吕寻,刘文桢.小陇山林区抚育间伐对华山松人工林生长的影响[J].西北林学院学报,2014,29(6):176-179. |
| |
| 作者姓名： | 胥富强 王齐 吕寻 刘文桢 |
| |
| 作者单位： | （1.甘肃省小陇山林业调查规划院，甘肃 天水 741020；2.云南林业职业技术学院, 云南 昆明 650224；3. 甘肃省小陇山林业科学研究所，甘肃 天水 741020） |
| |
| 摘 要： | 通过样地设置调查和复测，分析了抚育间伐对小陇山林区华山松林木胸径、树高的生长和材积的影响，探讨了华山松人工林的间伐强度，间伐开始期、间隔期等间伐技术。结果表明，抚育间伐强度对华山松的平均胸径生长有极显著影响，但并不能促进华山松树高的生长；对该林分首次间伐基本是适宜的林龄为20 a。第2次抚育间伐选择林分林龄为30 a比较合适。间伐间隔期为10 a；首次间伐时，林分保留密度为2 700株·hm-2，由此推算，并考虑林分的尽快郁闭和山区更新的实际情况，华山松人工造林初植适宜密度应为4 500株·hm-2。
|
| 关 键 词： | 华山松 人工林 抚育间伐 小陇山 |
Effects of Tending Thinning on the Growth of Pinus armandii Plantations in Xiaolongshan Forest Region |
| |
| XU Fu-qiang,WANG Qi,LYU Xun,LIU Wen-zhen. Effects of Tending Thinning on the Growth of Pinus armandii Plantations in Xiaolongshan Forest Region[J].Journal of Northwest Forestry University,2014,29(6):176-179. |
| |
| Authors: | XU Fu-qiang WANG Qi LYU Xun LIU Wen-zhen |
| |
| Institution: | (1. Xiaolongshan Forest Researching & Designing Institute, Tianshui, Gansu 741020, China; 2. Yunnan Forestry Technological College, Kunming, Yunnan 650224, China; 3. Research Institute of Xiaolongshan Forest Science and Technology, Tianshui, Gansu 741020，China) |
| |
| Abstract: | Effects of tending thinning on the growth of the diameter at the breast height (DBH), tree height, and volume were investigated by establishing sampling plots in Pinus armandii plantations to examine appropriate thinning intensity, time of commence, duration, etc. The results showed that the intensity of thinning had significant influence on the average DBH growth, but it could not promote the height growth. The suitable time of the first thinning would be when the stand was 20 years old, and 30-year-old for the second time of thinning, 10 years of interval. The stand reserving density was 2 700 per hectare after the first time of thinning. Additionally, considering the actual situations such as the demand of quick canopy closing and updating, the planting density of P. armandii should be 4 500 plants per hectare. |
| |
| Keywords: | Pinus armandii artificial forest tending thinning Xiaolongshan forest region |
|
| 点击此处可从《西北林学院学报》浏览原始摘要信息 |
| 点击此处可从《西北林学院学报》下载免费的PDF全文 |
|
