The effects of Sasa and canopy gap formation on tree regeneration in an old beech forest

Abe, Miki; Izaki, J.; Miguchi, Hideo; Masaki, Takashi; Makita, Akifumi; Nakashizuka, Tohru

doi:10.1658/1100-9233(2002)013[0565:teosac]2.0.co;2

Cited by 25 publications

(56 citation statements)

References 35 publications

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“…Light intensity was signiWcantly lower under bamboo canopies compared to adjacent forest areas, suggesting that light may be one of the limiting factors for seedling regeneration under bamboos in these forest ecosystems, thus supporting our Wrst prediction. Reduced light availability by bamboos is one of the main factors that limit seedling regeneration in many temperate tree species (Gratzer et al 1999;Abe et al 2002;Narukawa and Yamamoto 2002;Taylor et al 2004). Other studies in tropical forests have also suggested that shade from bamboo inhibits woody species regeneration (Marod et al 1999;Guilherme et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…These Xowering and die-oV events may occur at intervals of many decades and can lead to changes in the soil nutrient environment, light intensity and the space available for tree seedling regeneration on the forest Xoor (Taylor and Qin 1992;Marod et al 1999;Abe et al 2002;Taylor et al 2004;Holz and Veblen 2006;Takahashi et al 2007). Many studies have shown that living bamboos impede tree regeneration through their competitive superiority in terms of the capture of light and other resources (Gratzer et al 1999;Tabarelli and Mantovani 2000;Abe et al 2002;Narukawa and Yamamoto 2002;Griscom and Ashton 2003;Guilherme et al 2004;Taylor et al 2004Taylor et al , 2006, and a negative relationship between bamboo density and the abundance of tree seedlings has been found (Gratzer et al 1999;Taylor et al 2006). Bamboos reduce pioneer species richness by competing for gaps (Tabarelli and Mantovani 2000) and mass loading of bamboos can cause physical damage of tree juveniles (Griscom and Ashton 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Bamboos reduce pioneer species richness by competing for gaps (Tabarelli and Mantovani 2000) and mass loading of bamboos can cause physical damage of tree juveniles (Griscom and Ashton 2006). Although bamboos compete eVectively with other tree species, resulting in an increased bamboo dominance, their die-oV events may prevent them from taking over and allow other species to coexist (Taylor and Qin 1992;Marod et al 1999;Abe et al 2002;Taylor et al 2004;Holz and Veblen 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Although the inhibitory eVects of bamboos on tree regeneration have been widely studied (Taylor and Qin 1992;Gratzer et al 1999;Abe et al 2002;Narukawa and Yamamoto 2002;Taylor et al 2004Taylor et al , 2006Holz and Veblen 2006), most of the studies are from temperate or warm temperate forests with Sasa and Bashania bamboos, which are diVerent from tropical bamboos. Temperate bamboos generally have running rhizomes and spread quickly over wide areas, whereas tropical bamboos have abbreviated rhizomes that form bamboos of the clumping type (Söderström and Calderon 1979).…”

Section: Introductionmentioning

confidence: 99%

“…We hypothesized that bamboos and trees diVer in their eVects on the woody species seedling abundance, and richness and diversity. Firstly, because of the deep shade under bamboo canopy (Gratzer et al 1999;Marod et al 1999;Abe et al 2002;Narukawa and Yamamoto 2002;Guilherme et al 2004;Taylor et al 2004), we predicted that regeneration of other species will be lower under bamboo compared to under tree canopies. Secondly, we predicted that due to the shape of bamboo leaves, together with the low decomposition rate of its litter (Tripathi and Singh 1995;Liu et al 2000), the seedling responses to litter manipulation will be more pronounced under bamboo compared to under tree canopies.…”

Section: Introductionmentioning

confidence: 99%

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Bamboo dominance reduces tree regeneration in a disturbed tropical forest

2010

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Human disturbance may change dominance hierarchies of plant communities, and may cause substantial changes in biotic environmental conditions if the new dominant species have properties that differ from the previous dominant species. We examined the effects of bamboos (Bambusa tulda and Cephalostachyum pergracile) and their litter on the overall woody seedling abundance, species richness and diversity in a mixed deciduous forest in northeastern Thailand. These bamboo species are gaining dominance after human disturbance. Our results show that seedling abundance and species richness were reduced by bamboo canopies. Seedling abundance and species diversity under bamboo canopies were affected by bamboo litter, whereas seedling abundance and species diversity outside bamboo canopies did not respond to the mixed-tree litter manipulation. Removal of bamboo litter increased seedling abundance and species diversity. However, bamboo litter addition did not affect seedling abundance or species diversity compared to either control or litter removal. This may indicate that the effect of natural amount of bamboo litter is as high as for litter addition in preventing seedling establishment by woody species and hence in minimizing resource competition. We conclude that undergrowth bamboos and their litter affect tree seedling regeneration differently from mixed-tree litter, causing changes in plant community composition and species diversity. Increased human disturbance, causing a shift in dominance structure of these forests, may result in a concomitant reduction in their overall woody species abundance, richness and diversity. Thus, management of bamboos by controlling their distribution in areas of high bamboo density can be an important forest restoration method.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Bamboo dominance reduces tree regeneration in a disturbed tropical forest

2010

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Effects of sika deer (Cervus nippon) and dwarf bamboo (Sasamorpha borealis) on seedling emergence and survival in cool-temperate mixed forests in the Kyushu Mountains

Murata

Saruki²,

Kubota

et al. 2009

Journal of Forest Research

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Effects of sika deer (Cervus nippon) and dwarf bamboo (''sasa;'' Sasamorpha borealis) on seedling emergence and survival were investigated in cool-temperate mixed forests in the Kyushu mountain range, Japan. We compared the effects of sika deer between two sites with different sika deer densities. One site (no-sasa forest) has sparse cover of S. borealis and a high density of sika deer, and the other site (sasa forest) has dense cover of S. borealis with a low density of sika deer. In the no-sasa forest, more seedlings emerged and the survival rate of the seedlings was higher compared with the sasa forest. Compared with the sasa forest, the canopy in the no-sasa forest was more open, the organic layer was shallower and drier, the mean daily soil temperature was higher, and soil temperature fluctuated more widely. Those environmental parameters did not differ between unfenced and fenced plots. The comparison between the sasa and no-sasa forests suggested that removal of S. borealis by sika deer had an indirect positive effect on seedling emergence and survival. However, the fenced-plot experiments indicated that sika deer inhibited seedling emergence and survival. These contradictory conclusions could result from the much larger negative effects of S. borealis on seedling emergence and survival compared with the effects of sika deer browsing.Keywords Cervus nippon density Á Direct and indirect effects of sika deer Á Exclosure experiment Á Regeneration Á Seedling emergence and survival

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Individual growing conditions that affect diameter increment of tree saplings after selection harvesting in a mixed forest in northern Japan

Miya

Yoshida

Noguchi

et al. 2009

Journal of Forest Research

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We analyzed temporal patterns in diameter growth of saplings following selection harvesting in an uneven-aged mixed stand dominated by Abies sachalinensis, Acer mono, Quercus crispula, and Betula ermanii in Hokkaido, northern Japan. We examined interspecific differences in growth responses to local growing conditions including harvesting intensity, crowding, stem size, and past duration of the small growth period. Consistent with expectations based on shade tolerance of the species, the age at which the individual reached a diameter at breast height of 12.5 cm was highest for A. sachalinensis and lowest for B. ermanii. The interspecific growth differences between saplings that had or had not experienced local harvesting increased gradually for A. sachalinensis and B. ermanii, but peaked at around 4-6 years after harvesting for Q. crispula. Generalized linear mixed model analysis clearly suggested that individual growth conditions required to enhance diameter growth of saplings differed considerably among species. For Q. crispula and B. ermanii, local harvesting intensity was most strongly and positively associated with diameter growth rate, whereas for A. sachalinensis and A. mono, stem size had the strongest negative effect. Abies sachalinensis saplings responded more to surrounding harvesting when they were relatively small, whereas A. mono showed a weak opposite response. The duration of the small growth period before harvesting had negative effect for A. sachalinensis, but not for the other species. Our study indicated that the influence of selection harvesting on growth of shade-tolerant species depends upon pre- and post-harvest growing conditions

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The effects of Sasa and canopy gap formation on tree regeneration in an old beech forest

Cited by 25 publications

References 35 publications

Bamboo dominance reduces tree regeneration in a disturbed tropical forest

Bamboo dominance reduces tree regeneration in a disturbed tropical forest

Effects of sika deer (Cervus nippon) and dwarf bamboo (Sasamorpha borealis) on seedling emergence and survival in cool-temperate mixed forests in the Kyushu Mountains

Individual growing conditions that affect diameter increment of tree saplings after selection harvesting in a mixed forest in northern Japan

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