基于地径形高法的被盗材积复原技术——以刺槐、麻栎为例
|
摘要
准确估测盗伐木材积对评估森林盗伐后的损失具有重要作用。本文针对树木被盗后现场只留伐桩的情况,提出了一种基于地径形高法的被盗木材积复原技术,即:首先测算出被盗木周边与其生长状况相近树木的地径形高,然后用平均地径形高结合被盗木地径值求算出被盗材积。试验采用刺槐、麻栎两树种各24块样地,每样地各取10株样木对该方法进行了材积复原效果研究,结果表明:用来测算平均地径形高的样木株数越多,材积复原效果越好,当样木株数从1株增加到4株时,材积复原误差即可有效控制在10%以内。由此认为,该方法是一种复原误差可控、实用性良好的盗伐材积复原技术。
It is important to estimate the volume of stolen trees accurately for the assessment of economic losses. Due to the fact that only tree stump was left after the tree was stolen, this study proposed a technique for calculating the stolen tree volume based on ground diameter form height. Firstly, to measure the ground diameter form height of trees around the stolen one which were similar to the stolen trees. Then to calculate the volume of stolen tree using the average ground diameter form height combined with the stolen tree's ground diameter. In this experiment, 24 plots of Robinia pseudoacacia and Quercus acutissima were investigated, and in each of the plots, 10 individuals trees were measured respectively. The data from the investigation were used to recover the volume of stolen trees. The results showed that the more sample trees used to measure the average ground diameter form height, the better the recovered results will be. When the number of sample trees increased from 1 to 4, the error of recovery volume can be controlled under 10%. Therefore, it is considered that this method is a practically useful technique for recovering the volume of stolen trees and its recovery error is controllable.
It is important to estimate the volume of stolen trees accurately for the assessment of economic losses. Due to the fact that only tree stump was left after the tree was stolen, this study proposed a technique for calculating the stolen tree volume based on ground diameter form height. Firstly, to measure the ground diameter form height of trees around the stolen one which were similar to the stolen trees. Then to calculate the volume of stolen tree using the average ground diameter form height combined with the stolen tree's ground diameter. In this experiment, 24 plots of Robinia pseudoacacia and Quercus acutissima were investigated, and in each of the plots, 10 individuals trees were measured respectively. The data from the investigation were used to recover the volume of stolen trees. The results showed that the more sample trees used to measure the average ground diameter form height, the better the recovered results will be. When the number of sample trees increased from 1 to 4, the error of recovery volume can be controlled under 10%. Therefore, it is considered that this method is a practically useful technique for recovering the volume of stolen trees and its recovery error is controllable.
引文
[1]黄小菊,唐初明.应用回归技术创建荔浦县伐区杉木地径材积表[J].林业勘查设计,2010(3):34-36
[2]苏杰南,黎良财.杉木人工林地径材积表编制方法研究[J].湖北农业科学,2011,50(16):3342-3345
[3]张金全.建瓯市杉木与马尾松及阔叶树地径材积表的编制[J].现代农业科技,2012(19):155-157
[4]张宜香,唐初明.以简化回归技术创建荔浦县伐区马尾松地径材积表[J].林业勘查设计,2011(3):45-48
[5]罗彬,王慎.西充县柏木人工林一元地径材积表的编制[J].四川林勘设计,2014(2):43-45
[6]孟宪宇.测树学[M].北京:中国林业出版社,1997
[7]邓白罗.厚朴生长与立地因子关系的调查研究[J].经济林研究,1994(1):41-46
[8] Johnson PS, Weigel DR. Models for estimating DBH from stump diameter for southern Indiana oaks[J]. Northern Journal of Applied Forestry, 1990,7(7):79-81
[9]杨晓毅,赵浩彦.马尾松地径与胸径相关关系研究[J].湖南林业科技,2014(5):40-42
[10]曹宁.山东省主要树种的含碳量方程构建[D].泰安:山东农业大学,2015
[11] Ito E, Furuya N, Tith B, et al. Estimating diameter at breast height from measurements of illegally logged stumps in Cambodian lowland dry evergreen forest[J]. Japan Agricultural Research Quarterly Jarq, 2010,44(4):435-446
[12]粟万军.云南省马关县金城林场人工杉木材积对根径的回归方程分析[J].北京农业,2012(12):188-190
[13]伍静,吴英,龙楚云,等.尾叶桉地径与胸径、树高、材积相关性分析[J].南方农业学报,2013,44(6):979-983
[14]吴剑钊.湿地松人工林地径与胸径树高模型的研究[J].亚热带水土保持,2009,21(1):22-23
[15]顾丽,王新杰,龚直文,等.落叶松人工林根径材积表和合理经营密度研究[J].西北林学院学报,2009,24(5):180-185
[2]苏杰南,黎良财.杉木人工林地径材积表编制方法研究[J].湖北农业科学,2011,50(16):3342-3345
[3]张金全.建瓯市杉木与马尾松及阔叶树地径材积表的编制[J].现代农业科技,2012(19):155-157
[4]张宜香,唐初明.以简化回归技术创建荔浦县伐区马尾松地径材积表[J].林业勘查设计,2011(3):45-48
[5]罗彬,王慎.西充县柏木人工林一元地径材积表的编制[J].四川林勘设计,2014(2):43-45
[6]孟宪宇.测树学[M].北京:中国林业出版社,1997
[7]邓白罗.厚朴生长与立地因子关系的调查研究[J].经济林研究,1994(1):41-46
[8] Johnson PS, Weigel DR. Models for estimating DBH from stump diameter for southern Indiana oaks[J]. Northern Journal of Applied Forestry, 1990,7(7):79-81
[9]杨晓毅,赵浩彦.马尾松地径与胸径相关关系研究[J].湖南林业科技,2014(5):40-42
[10]曹宁.山东省主要树种的含碳量方程构建[D].泰安:山东农业大学,2015
[11] Ito E, Furuya N, Tith B, et al. Estimating diameter at breast height from measurements of illegally logged stumps in Cambodian lowland dry evergreen forest[J]. Japan Agricultural Research Quarterly Jarq, 2010,44(4):435-446
[12]粟万军.云南省马关县金城林场人工杉木材积对根径的回归方程分析[J].北京农业,2012(12):188-190
[13]伍静,吴英,龙楚云,等.尾叶桉地径与胸径、树高、材积相关性分析[J].南方农业学报,2013,44(6):979-983
[14]吴剑钊.湿地松人工林地径与胸径树高模型的研究[J].亚热带水土保持,2009,21(1):22-23
[15]顾丽,王新杰,龚直文,等.落叶松人工林根径材积表和合理经营密度研究[J].西北林学院学报,2009,24(5):180-185