顺昌县不同径阶阔叶树保留木资源调查与分析  

Resources of Residual Trees for Broadleaved-Trees at Different Diameter Grades in Shunchang County

作　　者：张平 

机构地区：[1]南平市顺昌县林业局,福建南平353200

出　　处：《防护林科技》2016年第8期8-11,共4页Protection Forest Science and Technology

摘　　要：通过2012—2013年顺昌县大历镇阔叶树保留木资源调查分析,结果表明:不同径阶阔叶树保留木的株数分布整体上呈"L"形,每个径阶阔叶树保留木达200株以上的主要分布于径阶为6~14cm之间,共有1 499株,占总数的73.37%;径阶16cm以上保留的株数仅占总数的26.63%。阔叶树保留木中间层中径木,共有1 978株,占总数的96.82%;上层大树仅65株,仅占总数的3.18%。不同径阶的阔叶树保留木蓄积量分布基本上呈正态分布,径阶5~14cm阔叶树保留木蓄积量为63.82m^3,占总保留木阔叶树蓄积量187.29m^3的34.08%;径阶16cm以上的阔叶树保留木蓄积量为123.47m^3,占总保留木阔叶树蓄积量的65.92%,是径阶5~14cm阔叶树保留木蓄积量1.93倍。阔叶树中间层中径木蓄积量为146.08m^3,占总蓄积量的78%;上层大树蓄积量为41.21m^3,蓄积量占总数的22%。阔叶树保留木胸径5~14.9cm共需补偿3 191元,胸径15cm以上需补偿12 347.00元,大历镇阔叶树保留木共需补偿15 538.00元。阔叶树保留株数平均值为138.6株?hm^(-2),阔叶树蓄积量保留平均值为12.75m^3?hm^(-2),阔叶树保留木不炼山造林成本从造林至郁闭前需投资27 000元?hm^(-2)。Resources of residual trees for broadleaved-trees at different diameter grades in Dali Town of Shunchang County were analyzed from 2012 to 2013.Result shows that：distribution for number of trees of residual trees for broadleaved-trees at different diameter grades appears an＂L＂type.Residual trees（above 200trees）of broadleavedtrees at each diameter class mainly distributed 6-14 cm,a total of 1 499 trees,constitute 73.37% of the total;the number of reserved trees only constitute 26.63% of the total above 16cm;middle diameter wood in middle layer of broadleaved-trees,there are 1 978 trees,constitute 96.82% of the total;there are only 65 trees in the upper layer which constitute 3.18%.Distribution of stock volume of residual trees for broadleaved-trees at different diameter grade is substantially normal,the growing stock of residual trees for broadleaved-trees is 63.82m^3 with the diameter grade being 5-14,which constitute 34.08% of the growing stock（187.29 m^3）;the growing stock of residual trees for broadleaved-trees are 123.47m^3 with the diameter grade being above 16 cm,which constitute 65.92% of growing stock for broadleaved trees for residual trees,which is 1.93 times as large as growing stock for broadleavedtrees.Growing stock of middle diameter in the middle layer for broadleaved-trees is 146.08m^3,constitute 78% of the total stock volume;the growing stock of upper trees are 41.21m^3,which constitute 22% of the total accumulation accounts.DBH of the residual trees for broadleaved-trees is 5-14.9cm,compensation totaling 3 191 Yuan;DBH（more than 15cm）of the residual trees for broadleaved-trees required to compensate 12 347.00Yuan;broadleaved-trees in Dali Town will compensate totaling 15,538.00 Yuan.The mean value of reserved number of trees for broadleaved-trees are 138.6trees hm^-2;the reserved mean value of broadleaved-trees is 12.75m^3 hm^-2,the cost of non-slash burning afforestation for broadleaved-trees from afforestation to canopy needs an investment of 27 000 Yuan hm^-2.

关 键 词：阔叶树 保留木 径阶 资源调查 顺昌县 

分 类 号：S718.54[农业科学—林学]