十年间2004-2014蒙古栎蓄积生长变化情况研究
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摘要
本文对蛟河市辖区天南林场蒙古栎纯林进行设置样地调查,结果为:0.06hm~2样地内三期同时存活的样木共123株,其中包括122株蒙古栎。十年间样木年平均蓄积生长量为■,三期调查结果中林木蓄积量呈递增趋势,生长最快的区分段在14cm区分段,各调查期蓄积量分布数据均符合正态分布曲线,从5cm～20cm阶段林木生长蓄积增长量呈不规则变化,从林木胸径大于20cm以后的林木蓄积增长量规律非常明显,呈递增趋势。
This paper investigates the plots of the Quercus mongolica pure forest in the Tiannan forest farm in the jurisdiction of Jiaohe City. The results are as follows: 123 strains of viable wood in the third phase of 0.06 hm~2 plot, including 122 strains of Mongolian alfalfa. In the past ten years, the average annual growth of the sample wood was =0.0193 m~3. The results of the third-phase survey showed an increasing trend of forest stocks, and the fastest growing segment was segmented in the 14 cm area. The distribution data of the survey periods all conformed to the normal distribution curve. From the 5 cm to 20 cm stage, the growth of forest growth and accumulation showed irregular changes. The growth of forest growth after the DBH of the forest was greater than 20 cm, which showed an increasing trend.
This paper investigates the plots of the Quercus mongolica pure forest in the Tiannan forest farm in the jurisdiction of Jiaohe City. The results are as follows: 123 strains of viable wood in the third phase of 0.06 hm~2 plot, including 122 strains of Mongolian alfalfa. In the past ten years, the average annual growth of the sample wood was =0.0193 m~3. The results of the third-phase survey showed an increasing trend of forest stocks, and the fastest growing segment was segmented in the 14 cm area. The distribution data of the survey periods all conformed to the normal distribution curve. From the 5 cm to 20 cm stage, the growth of forest growth and accumulation showed irregular changes. The growth of forest growth after the DBH of the forest was greater than 20 cm, which showed an increasing trend.
引文
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[4]王雨茜.吉林蛟河老龄林群落特征及其与地形关系[D].北京:北京林业大学,2013.
[5]郭彦林,魏来等.蒙古栎纯林胸径分布规律的研究[J].黑龙江:林业勘察数据,2016,(1):83-84.
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[2]刘彦春,张远东等.川西亚高山次生桦木林恢复过程中的生物量、生产力与材积变化[J].生态学报,2010,30(3):594-601.
[3]吴鹏,丁访军.中国西南地区森林生物量及生产力研究综述[J].湖北农业科学,2012,8(51):1513-1527.
[4]王雨茜.吉林蛟河老龄林群落特征及其与地形关系[D].北京:北京林业大学,2013.
[5]郭彦林,魏来等.蒙古栎纯林胸径分布规律的研究[J].黑龙江:林业勘察数据,2016,(1):83-84.
[6]吉林省林业厅.吉林省立木材积、出材率表[M] .吉林:内部使用,2016.