Vertical zonation of <i>Sphagnum</i> mosses along hummock-hollow gradients

Andrus, Richard E.; Wagner, Daniel J.; Titus, John E.

doi:10.1139/b83-352

Cited by 149 publications

(90 citation statements)

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“…The existence of hummock-hollow microtopography has important impacts on hydrological dynamics (Lindholm and Markkula, 1984;Verry et al, 2011b), nutrient availability (Chapin et al, 1979;Damman, 1978), plant species distribution and productivity (Andrus et al, 1983;Moore, 1989), and decomposition rates (Johnson and Damman, 1991). Many wetland ecosystem models drive biogeochemical simulations using observed water table depth as an input variable (St-Hilaire et al, 2010;Frolking et al, 2002;Hilbert et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Representing northern peatland microtopography and hydrology within the Community Land Model

et al. 2015

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Abstract. Predictive understanding of northern peatland hydrology is a necessary precursor to understanding the fate of massive carbon stores in these systems under the influence of present and future climate change. Current models have begun to address microtopographic controls on peatland hydrology, but none have included a prognostic calculation of peatland water table depth for a vegetated wetland, independent of prescribed regional water tables. We introduce here a new configuration of the Community Land Model (CLM) which includes a fully prognostic water table calculation for a vegetated peatland. Our structural and process changes to CLM focus on modifications needed to represent the hydrologic cycle of bogs environment with perched water tables, as well as distinct hydrologic dynamics and vegetation communities of the raised hummock and sunken hollow microtopography characteristic of peatland bogs. The modified model was parameterized and independently evaluated against observations from an ombrotrophic raised-dome bog in northern Minnesota (S1-Bog), the site for the Spruce and Peatland Responses Under Climatic and Environmental Change experiment (SPRUCE). Simulated water table levels compared well with site-level observations. The new model predicts hydrologic changes in response to planned warming at the SPRUCE site. At present, standing water is commonly observed in bog hollows after large rainfall events during the growing season, but simulations suggest a sharp decrease in water table levels due to increased evapotranspiration under the most extreme warming level, nearly eliminating the occurrence of standing water in the growing season. Simulated soil energy balance was strongly influenced by reduced winter snowpack under warming simulations, with the warming influence on soil temperature partly offset by the loss of insulating snowpack in early and late winter. The new model provides improved predictive capacity for seasonal hydrological dynamics in northern peatlands, and provides a useful foundation for investigation of northern peatland carbon exchange.

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Section: Introductionmentioning

confidence: 99%

Representing northern peatland microtopography and hydrology within the Community Land Model

et al. 2015

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“…The vertical gradient, which translates into a microtopographic or microstructural division, embraces from pools and water saturated depressions to dry hummocks. This is one of the most relevant factors when assessing the specific richness and the floristic composition (Andrus & al., 1983;Wheeler, 1993;Wheeler & Proctor, 2000;Rydin & Jeglum, 2006). The latter is not applicable to tepuales, where the bryophytic carpet is homogeneous.…”

Section: Groupmentioning

confidence: 99%

Bryophytes and lichens in peatlands and <em>Tepualia stipularis</em> swamp forests of Isla Grande de Chiloé (Chile)

León

Oliván

Larraín

et al. 2014

Anal. Jard. Bot. Madr.

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One hundred and twenty-nine taxa of bryophytes and lichens were found in peatlands (Sphagnum bogs) and swamp forests of Tepualia stipularis of Isla Grande de Chiloé (Chile) (41°-43°S, 73°-74°W). Forty eight percent of these species are endemic to southern South America. The range of most species spans from Los Rios Region to Magallanes Region. Fifty mosses, 52 liverworts, and 27 macrolichens were reported. Global and national distributions and habitat preferences are given for each species.

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“…(Lodwick and Snider, 1980 (Clymo, 1963(Clymo, , 1973. (Andrus et al, 1983;Lodwick and Snider, 1980;Rydin, 1985Rydin, , 1995. …”

Section: 용늪이나 무제치늪과 같은 고층습원의 경우 물에 포함 돼 있는 인질산 등의 주요양분 뿐만 아니라 물이끼 생 육mentioning

confidence: 99%

Inhabitation Characteristics of Sphagnum palustre in Abandoned Paddy Terrace Wetland: a Case Report in Ansan

Hong¹,

Kim

2013

Journal of Wetlands Research

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Gignac and Vitt, 1990;Rydin and Jeglum, 2009;Spatt and Miller, 1981). 우리나라의 경우 오대산의 소황병산 늪, 대암산 용늪 및 정족산 무제치늪 등 주로 고층습원 (high moors)과 인천의 무의도 산림습지 등 상대적으로 높은 고도에서 그 서식이 제한적으로 보고된 바 있다 (Bae et al., 2003;Kang, 1970;Kang and Yoshioka, 2005; Kim, 2009;Paik, 2010;Park and Kim, 2012). palustre in lower APT.

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Vertical zonation of Sphagnum mosses along hummock-hollow gradients

Cited by 149 publications

References 0 publications

Representing northern peatland microtopography and hydrology within the Community Land Model

Representing northern peatland microtopography and hydrology within the Community Land Model

Bryophytes and lichens in peatlands and <em>Tepualia stipularis</em> swamp forests of Isla Grande de Chiloé (Chile)

Inhabitation Characteristics of Sphagnum palustre in Abandoned Paddy Terrace Wetland: a Case Report in Ansan

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