| 小兴安岭天然次生林伐区伐根高度统计分析 |
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| 引用本文： | 邸向辉,鲍震宇,侯捷建,刘泽旭,刘德州,王立海.小兴安岭天然次生林伐区伐根高度统计分析[J].森林工程,2013(6):1-3. |
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| 作者姓名： | 邸向辉 鲍震宇 侯捷建 刘泽旭 刘德州 王立海 |
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| 作者单位： | 东北林业大学森林持续经营与环境微生物黑龙江省重点实验室,哈尔滨150040 |
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| 基金项目： | 国家林业行业公益性科研专项重大项目资助（201104007） |
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| 摘 要： | 对小兴安岭某林区在寒冷冰雪作业环境下的云杉、枫桦和冷杉伐根高度、作业坡度和伐根直径等进行调查,利用Excel和SPSS统计软件对测量后的数据进行线性分析.结果表明：采伐后云杉、枫桦和冷杉伐根高度高出规定高度的一倍之多;伐根高度与伐根截面直径的拟合度较其与作业坡度和直径变化率的拟合度低,并且伐根高度与伐根直径变化率存在负相关、与作业坡度存在正相关,说明树木径级不是影响伐根高度的主要因素,反而作业坡度越大,伐根高度越大,直径变化率越大,伐根高度越小.
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| 关 键 词： | 伐根高度 直径变化率 作业坡度 |
Analysis on Cutting Root Height in a Natural Secondary Forest Cutting Area of Xiaoxing＇an Mountains |
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| Institution: | Xianghui, Bao Zhenyu, Hou Jiejian, Liu Zexu, Liu Dezhou, Wang ( Key Laboratory of Sustainable Forest Management ＆ Environmental Microbiology in Heilongjiang Province, Northeast Forestry University, Harbin 150040) |
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| Abstract: | This paper studied the cutting root height and diameter of Picea, Betul, costata and Abies fabric, and the operating slope under the cold and snow forest operations environment in a natural secondary forest cutting area of the Xiaoxing＇anling Mountains. Microsoft Excel and SPSS statistical software were used to analyze the measurement data. The results showed that the height of the cut- ting root was more than twice than forestry standards, and the fitting degree between the cutting root height and diameter of the cutting section was lower compared to that between height and operating slope, or between height and diameter change rate. The cutting root height was negatively correlated with diameter change rate and was positively correlated with operating slope, which indicated that the trees diameter class was not the major factor affecting cutting root height, but with the increase of operating slope, that height in- creased, and with the increase of change rate of diameter, the cutting height decreased. |
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| Keywords: | cutting root height rate of diameter change operating slope |
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