Relationship between coefficient of variation of diameter and height and competition index of main coniferous trees in Changbai Mountains

Zhao Jun-hui; Kang Xin-gang; Zhang Hui-dong; Liu Yan
August 2009
Yingyong Shengtai Xuebao;Aug2009, Vol. 20 Issue 8, p1832
Academic Journal
A total of 1139 trees from 8 clear-cut stands dominated by fir, spruce, and pine in the Changbai Mountains were selected to study the relationships between the coefficient of variation of diameter and height and the competition index of the three main coniferous tree species in the Mountains. For the test tree species, the variation of height vs. diameter class was relatively small, while the variations of diameter and height vs. age class were larger, with the largest coefficient of variation of diameter vs. age class. The traditional height-diameter models could better reflect the real growth of trees, whereas the diameter-age or height-age models were not good enough. Competition was the main factor inducing the variations of tree diameter and height, suggesting that incorporating the competition index to the traditional models of tree growth and height could improve the model accuracy significantly.


Related Articles

  • Silvicultural alternatives in an uneven-sized forest dominated by Picea abies. Lähde, Erkki; Laiho, Olavi; Lin, C. Julian // Journal of Forest Research;Feb2010, Vol. 15 Issue 1, p14 

    In this article, we report on the increments in basal area and tree diameter as well as the structural development observed in variously thinned plots that underwent either uneven- or even-sized treatment. The experimental forest was originally an uneven-sized mixed stand dominated by Picea...

  • Analysis and Determination of Forest Types in Respect to Aspect in Iran. Hashemi, Seyed Armin // Advances in Environmental Biology;Jul2011, Vol. 5 Issue 8, p2492 

    On the bases of IVI (Importance Value Index) a total of two forests types, Quercus libani Oliv on north, north west and north east and Quercus brantii Lindl. On south, south east, south west and west, aspects. Spatial patterns of species distribution were characterized by clumped (contagious)...

  • Relationship between tree growth and physical dimensions of Fagus sylvatica crowns assessed from terrestrial laser scanning. Seidel, Dominik; Schall, Peter; Gille, Malte; Ammer, Christian // iForest - Biogeosciences & Forestry;2015, Vol. 8 Issue 6, p735 

    Measurements of physical tree crown dimensions were of subjective character in the past, even though they can be considered important for the management of many silvicultural operations, such as timing of thinning operations. In our study we investigated if and how measures of physical crown...

  • Structure of mixed ombrophyllous forests with Araucaria angustifolia (Araucariaceae) under external stress in Southern Brazil. Vibrans, Alexander C.; Sevegnani, Lúcia; Uhlmann, Alexandre; Schorn, Lauri A.; Sobral, Marcos G.; de Gasper, André L.; Lingner, Débora V.; Brogni, Eduardo; Klemz, Guilherme; Godoy, Marcela B.; Verdi, Marcio // Revista de Biología Tropical;sep2011, Vol. 59 Issue 3, p1371 

    This study is part of the Floristic and Forest inventory of Santa Catarina, conceived to evaluate forest resources, species composition and structure of forest remnants, providing information to update forest conservation and land use policy in Southern Brazilian State of Santa Catarina (95...

  • Site conditions and definition of compositional proportion modify mixture effects in Picea abies - Abies alba stands. Huber, Markus O.; Sterba, Hubert; Bernhard, Luzi // Canadian Journal of Forest Research;Oct2014, Vol. 44 Issue 10, p1281 

    For most forest types in the European Alps, little is known about mixture effects on stand productivity. The comparability of studies on mixture effects often suffers from the open methodological question of whether the results depend on the definition of compositional proportion. In this study,...

  • Spatial structure of Quercus mongolica forest in Beijing Songshan Mountain Nature Reserve. Yue Yong-jie; Yu Xin-xiao; Li Gang-tie; Fan Deng-xing; Ye Jun-Dao // Yingyong Shengtai Xuebao;Aug2009, Vol. 20 Issue 8, p1811 

    Based on the survey data of a 0.6 hm2 plot in Songshan Mountain Nature Reserve, and by using the uniform angle index, neighborhood comparison and mingling degree, this paper analyzed the spatial structural characteristics of Quercus mongolica forest in the Reserve. There were 10 populations in...

  • Effects of life history strategies and tree competition on species coexistence in a sub-boreal coniferous forest of Japan. Nishimura, Naoyuki; Kato, Kyoko; Sumida, Akihiro; Ono, Kiyomi; Tanouchi, Hiroyuki; Iida, Shigeo; Hoshino, Daisuke; Yamamoto, Shin-Ichi; Hara, Toshihiko // Plant Ecology;Jan2010, Vol. 206 Issue 1, p29 

    We examined the effects of different life history strategies and tree competition on species coexistence in a northern coniferous forest. We investigated the growth and demography of trees with stems ≥1 cm dbh in a 2-ha study plot in the Taisetsu Mountains of northern Japan. Three species,...

  • SOME CURRENT SUBSAMPLING TECHNIQUES IN FORESTRY. KIM ILES // Mathematical & Computational Forestry & Natural Resource Science;9/30/2012, Vol. 4 Issue 2, p77 

    Because different tree parameters are of differing importance, and have different variability, efficiency in sampling would suggest that some of the principle variables be subsampled. One convenient way to do this is to sample different numbers of items at the same sample locations. This paper...

  • Simulated transformation of even-aged Norway spruce stands to multi-layered forests: an experiment to explore the potential of tree size differentiation. Drössler, Lars; Nilsson, Urban; Lundqvist, Lars // Forestry: An International Journal of Forest Research;Apr2014, Vol. 87 Issue 2, p239 

    The study investigated the possibility to transform normal young Norway spruce (Picea abies (L.) Karst) forests to develop more heterogeneous stand structures, aiming for multi-layered forest in the long run. On three sites in central and south Sweden, 60 per cent of stand basal area was removed...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics