Plant species diversity and soil quality in harvested and grazed boreal aspen stands of northeastern British Columbia

Kržić, Maja; Newman, Reg F.; Broersma, Klaas

doi:10.1016/s0378-1127(03)00064-1

Cited by 31 publications

(25 citation statements)

References 30 publications

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“…Despite the positive influence of harvesting on species richness showed in this study, no differences with control plots on the understory Shannon diversity values were found, as in other studies in temperate forest Gilliam 2002;Krzic et al 2003). The relative high Shannon diversity values reached under all treatments indicated that plant communities after harvesting were not dominated by just a few species (Krzic et al 2003).…”

Section: Richness and Diversitycontrasting

confidence: 54%

Evaluating different harvest intensities over understory plant diversity and pine seedlings, in a Pinus pinaster Ait. natural stand of Spain

2008

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Although modern forestry takes into consideration the analysis of the effects of forest management on plant structure, diversity and seedlings, little is known about how those parameters respond to harvest techniques in the Mediterranean region. We investigated the effect of three different harvest intensities, respect to uncut controls, on understory plant species functional groups, richness, diversity and pine seedlings in a natural Maritime pine stand in Spain, three years after harvesting. The harvest treatments produced a reduction of the number of Pinus pinaster seedlings and woody species cover, and an increase of species richness (total and of annual species) and plant cover of annual species respect to control plots (CO). The Shannon diversity values showed no differences between treatments. These results emphasize that the tree harvest treatments analyzed are not suitable for the management of this P. pinaster stand. Otherwise, the reduction of pine seedling density by harvest treatments and the changes in richness and cover of functional groups would not induce the natural regeneration of this stand maintaining the understory plant layer.

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Section: Richness and Diversitycontrasting

confidence: 54%

Evaluating different harvest intensities over understory plant diversity and pine seedlings, in a Pinus pinaster Ait. natural stand of Spain

2008

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“…According to results, the unprotected areas had the lowest diversity and the species richness was decreased as already observed by Connell (1978), Vujnovic et al (2002), Keeley et al (2003), Bouahim et al (2011), Krzic et al (2003), Hendricks et al (2005), Banda et al (2006), Dorrough et al (2007) and Cesa and Paruelo (2011). It should be noted that, in these areas, some species are selectively kept and other species have been removed.…”

Section: Discussionsupporting

confidence: 66%

Effect of Conservation on Plant Species Diversity, Kurdistan, Western Iran

Pourbabaei¹,

Rahimi²

2016

Journal of Forest and Environmental Science

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This study was carried out in the Boin and Miryousef regions in Baneh of Kordestan province, west of Iran. Both areas were divided into two parts including protected and unprotected areas. In each area, 20 1000-m 2 circular plots were established following a selective method. Tree and shrub species were identified and the number of these species was counted in each sampling plot. The results indicated that 7 trees, 4 shrubs and 109 herbaceous species were found in the studied areas, 40 herbaceous, 7 tree and 3 shrub species were present in protected area, while unprotected area had 16 herbaceous and 3 tree species. The highest value of diversity indices belonged to protected areas in all vegetation layers. In tree layer, Quercus brantii had the greatest value of SIV, whereas the lowest value belonged to Pistacia atlantica. In shrub layer, the highest and lowest values of SIV belonged to Daphne mezereum and Cerasus microcarpa, respectively. Finally, in herbaceous layer, Luzula spicata had highest value of SIV, and lowest value was belonged to Galium sp.

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“…Mature aspen (late serai) stands have a much higher value as range than, the early regeneration (early serai) stands created by clearcut harvesting (Krzic et al 2003). The most productive native range for livestock in the PR, usually occurs under mature stands of aspen.…”

Section: Gaps and Directions For Further Research 61 Impacts Of Resomentioning

confidence: 99%

“…Within these stands, natural thinning has opened the forest canopy sufficiently to allow light to reach the forest floor, allowing for significant growth of forbs, grasses, and shrubs, as Despite increased levels of light reaching the forest floor and the possibility of greater forage production during the early regeneration phase (Mueggler and Bartos 1977), dense stands of root suckers restrict cattle access to forage and limit the proper distribution of animals over the grazing area (Krzic et al 2003). Taking no remedial actions to reduce sucker density following a disturbance limits cattle access to forage for five to fifteen years (Krzic et al 2003).…”

Section: Gaps and Directions For Further Research 61 Impacts Of Resomentioning

confidence: 99%

“…Taking no remedial actions to reduce sucker density following a disturbance limits cattle access to forage for five to fifteen years (Krzic et al 2003). Although clearcutting offers potential for short-term increases in forage production, dense broadleaf re-growth can reduce livestock access and limit grazing distribution (Wheeler and Willoughby 1993).…”

Section: Gaps and Directions For Further Research 61 Impacts Of Resomentioning

confidence: 99%

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Integrating production functions of timber, forage, and cattle to achieve sustainable resource management.

Bondaroff¹

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Plant species diversity and soil quality in harvested and grazed boreal aspen stands of northeastern British Columbia

Cited by 31 publications

References 30 publications

Evaluating different harvest intensities over understory plant diversity and pine seedlings, in a Pinus pinaster Ait. natural stand of Spain

Evaluating different harvest intensities over understory plant diversity and pine seedlings, in a Pinus pinaster Ait. natural stand of Spain

Effect of Conservation on Plant Species Diversity, Kurdistan, Western Iran

Integrating production functions of timber, forage, and cattle to achieve sustainable resource management.

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