我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

基于密度效应模型尾叶桉人工林最优密度的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年05期
Page:
43-46
Column:
研究论文
publishdate:
2010-10-08

Article Info:/Info

Title:
Optimum density of Eucalyptus urophylla plantation using improved density effect model
Author(s):
YE Shaoming YANG Mei HUANG Baoling LAN Jinxuan HUANG Xiaolu
Forestry College of Guangxi University, Nanning, 530004, China
Keywords:
density effect model productive elasticity marginal product Eucalyptus urophylla
Classification number :
S757
DOI:
10.3969/j.jssn.1000-2006.2010.05.009
Document Code:
A
Abstract:
Dominant height data was collected from Eucalyptus urophylla plantations growing under 7 density treatments. The variable factor dominant height was used to improve the parabolic type density effect model. The elastic analysis showed an increase of 0.452 0 % in average individual volume following 1 % decrease in density. Based on the marginal product analysis, the average individual tree volume decreased by 0.000 032 m3 following the addition of one tree per 006 hm2 and decreased by 0.001 006 m3 with 1.0 m increase in dominant height. The optimal density for different sites was calculated based on the modified density effect model (with height variable in it). When the stands were at their reference age (at the age of 6), the optimum density for E.urophylla plantation was 1 237, 1 492, 1 779, 2 100, 2 458, 2 853 trees per hectare under the site indexes 15, 16, 17, 18, 19 and 20, respectively.

References

[1]尹泰龙,韩福庆,迟金城,等. 林分密度控制图的编制与应用[J]. 中国林业科学,1978(3):1-11. [2]刘景芳. 编制林分密度管理图研究报告[J]. 林业科学,1980,16(4):241-251. [3]尹泰龙. 林分密度控制图[M]. 北京:中国林业出版社,1984. [4]Yoda. Serfthinning in overcrowded pure stands under cultivated and nature conditions[J]. J Biol Osaya City Univercity, 1963, 14: 107-129. [5]陈 辉,何忠明,洪伟. 杉木人工林密度效应模型研究[J]. 福建林学院学报,1992,12(3):277-282. [6]孟宪宇. 测树学[M]. 北京:中国林业出版社,1995. [7]Drew T J, FleWeUing J W. Some recent Japanese theories of yield density relationships and their application to Montery pine plantations[J]. Forestry Sector, 1977, 23( 4): 517-534. [8]程煜,洪伟,吴承祯,等. 闽北马尾松人工林密度效应蓄积量改进模型[J]. 河南农业大学学报,2002,36(2):147-150. [9]江希钿,黄娘增,江传阳,等. 柳杉人工林密度效应新模型[J]. 福建林学院学报,2005,25(3):193-196. [10]叶秀妹,刘钦,龚龙振. 天然黄山松林密度效应规律[J]. 福建农林大学学报:自然科学版,2004,33(3):352-354. [11]叶绍明,郑小贤,杨梅,等. 尾叶桉与马占相思人工复层林生物量及生产力研究[J]. 北京林业大学学报:自然科学版,2008,30(3):37-43. [12]张惠光. 巨尾桉人工林密度效应模型的研究[J]. 林业勘察设计,2006(2):4-7. [13]陈华豪,丁思统,蔡贤如. 林业应用数理统计[M]. 大连:大连海运学院出版社,1988. [14]洪伟. 林业试验设计技术与方法[M]. 北京:科学技术出版社,1993. [15]洪伟. 马尾松人工林经营模式及其应用[M]. 北京:中国林业出版社,1999. [16]贾庆文. 林业技术经济学[M]. 北京:中国林业出版社,1990. [17]周元满,谢正生,刘新田. 尾叶桉U6无性系林分密度效应研究[J]. 广东林业科技,2004,20(4):39-42. [18]黄宝灵,吕成群,蒙钰钗,等. 不同造林密度对尾叶桉生长、产量及材性影响的研究[J]. 林业科学,2000,36(1):81-90.

Last Update: 2010-10-08