Herbaceous Cover and Biomass of Carex planostachys in Juniperus ashei Woodlands of Central Texas

Wayne, E.R.; Auken, O. W. Van

doi:10.1894/dw-119.1

Cited by 2 publications

(3 citation statements)

References 36 publications

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“…Ashe juniper with only a few remnant oaks (Fuhlendorf et al 1996;Fowler and Simmons 2009) and a sparse or absent herbaceous layer Wayne and Van Auken 2010).…”

Section: Plant Communitiesmentioning

confidence: 99%

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Roles of fire in the plant communities of the eastern Edwards Plateau of Texas

Fowler,

Carden

2024

fire ecol

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Background The eastern Edwards Plateau supports a mosaic of woodlands, savannas, and shrubland in which native plant and animal species are often still dominant. Some woodlands are dominated by a mix of native woody species, including Ashe juniper (Juniperus ashei), oak species (Quercus spp.), and other hardwoods. Other woodlands are nearly pure Ashe juniper; these are particularly susceptible to crown fires. The savannas were once, and still can be, maintained by surface fires. Results We hypothesize that frequent surface fires once kept some of the mixed woodlands more open and more diverse (a “lost community”) and that these fires would have reduced the abundance of Ashe juniper, which does not resprout from the base, and allowed oak regeneration, which is currently failing. The absence of fire, the current failure of oak regeneration, and high white-tailed deer densities together favor the “juniperization” of woodlands, that is, the conversion of mixed woodlands into nearly pure stands of Ashe juniper. Surface fires in savannas can sometimes control woody encroachment and the non-native grass King Ranch bluestem (Bothriochloa ischaemum), although the particular fire characteristics required are not yet clear. The current lack of fire in savannas favors their conversion to woodlands. Since under present conditions Ashe juniper is the primary encroacher, without fire or mechanical clearing these savannas are also on trajectories towards nearly pure stands of Ashe juniper. Conclusions Prescribed fire, sometimes paired with mechanical thinning, offers land managers in this region a tool for achieving many goals, including increasing native biodiversity and reducing wildfire danger. However, more study of the effects of fires of different intensities and frequencies in these woodlands, savannas, and shrublands is needed to better inform the use of prescribed fire in this region.

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“…Ashe juniper with only a few remnant oaks (Fuhlendorf et al 1996;Fowler and Simmons 2009) and a sparse or absent herbaceous layer Wayne and Van Auken 2010).…”

Section: Plant Communitiesmentioning

confidence: 99%

“…The same is true of native grasses, almost all of which do not grow in present woodlands outside of glades. In contrast, the understory herbaceous vegetation in cedar brakes may consist of little but cedar sedge (Carex planostachys Kunze) (Wayne and Van Auken 2010).…”

Section: Savanna Biodiversitymentioning

confidence: 99%

Roles of fire in the plant communities of the eastern Edwards Plateau of Texas

Fowler,

Carden

2024

fire ecol

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“…得了较为理想的估算效果 [8,37] ,这主要是由于灌木多分枝现象, 致使基径并不充分指示灌木形态 [36,44] 。 Sah 等 [44] 也指出,对于多分枝的灌木, 把每个分枝当作一个个体对待,能够提高模型的精度。在柏木人工林林下草本层混合模型构建中,使用高度、盖度、体积等因子及其组合去建立估算模型都未能获得较好的估算精度( R 2 a < 0.410,P < 0.01) , 尤其是草本地下生物量估算模型未能通过显著性检验( P > 0.05) ,这明显跟前述的林下灌木不同。这可能与冠层覆盖下林下草本群体的形态变异紧密相关,因为草本的形态直接影响着草本的盖度、高度、体积等属性变异,对草本层各因子的测算带来不确定性 [34,45] 。 MacDonald 等 [35]…”

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Relationships of the understory biomass with stand structure across the Sichuan cypress plantation forests in Sichuan Basin, China

Jin¹,

Weikai²

2014

Acta Eco Sin

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Herbaceous Cover and Biomass of Carex planostachys in Juniperus ashei Woodlands of Central Texas

Cited by 2 publications

References 36 publications

Roles of fire in the plant communities of the eastern Edwards Plateau of Texas

Roles of fire in the plant communities of the eastern Edwards Plateau of Texas

Relationships of the understory biomass with stand structure across the Sichuan cypress plantation forests in Sichuan Basin, China

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