Growth and survival of tall tree seedlings 6∼8 years after soil scarification in hokkaido

被引：3

作者：

Harada, A. ^{[1
]}

Yoshida, T. ^{[2
]}

De Dios, V. Resco ^{[3
]}

Noguchi, M. ^{[4
]}

Kawahara, T. ^{[5
]}

机构：

[1] Graduate School of Environmental Science, Hokkaido University, Noyoro 096-0071

[2] Uryu Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Moshiri, Hokkaido 074-0741, Horokanai, Uryu-gun

[3] Department of Renewable Resources, University of Wyoming, Laramie, WY 82071

[4] Sikoku Research Center, Forestry and Forest Products Research Institute, Kochi 780-8077

[5] Fuji Research Institute of Forest Management Technology, Fujinomiya 418-0109

来源：

Nihon Ringakkai Shi/Journal of the Japanese Forestry Society | 2008年 / 90卷 / 06期

关键词：

Competition; Facilitation; Height growth; Scarification; Survival;

D O I：

10.4005/jjfs.90.397

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Scarification is widely conducted in northern Hokkaido to remove understory dwarf bamboos in degraded forests, and to replace it with tree species. We investigated height growth and survival during 6∼8 years after the treatment for nine major tree species naturally established in a site, and examined their contributing factors (competition or facilitation).The height growth and survival rate were higher in Phellodendron amurense and Sorbus commixta, besides lower in Picea glehnii. The results of generalized linear model or generalized linear mixed model suggested that facilitation effects of surrounding broadleaved trees or understory vegetation were dominant for growth of many tree species. Regarding Betula platyphylla, however, the facilitation effect, which had been found in the former period (3∼5 years after scarification) ,was changed into competition effect. For seedling survival, although negative effects of surrounding conifers were found, effects of broadleaved trees and understory vegetation were unclear. We concluded that weeding and cleaning treatments were ineffective for enhancing species richness in the site in this stage of stand development.

引用

页码：397 / 403

页数：6

共 3 条

[1]

Gomez-Aparicio L., Gomez Jose M., Zamora R., Boettinger Janis L., Canopy vs.soil effects of shrubs facilitating tree seedlings in Mediterranean montane ecosystems, J. Veg. Sci., 16, pp. 191-198, (2005)

[2]

De Dios R.V., Yoshida T., Iga Y., Effects of topsoil removal by soil-scarification on regeneration dynamics of mixed for ests in Hokkaido Northern Japan, For. Ecol. Manage., 215, pp. 138-148, (2005)

[3]

Yoshida T., Iga Y., Ozawa M., Noguchi M., Shibata H., Factors influencing early vegetation establishment following soil scarification in a mixed forest in northen Japan, Can. J. For. Res., 35, pp. 175-188, (2005)

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