Loblolly Pine Plant Community Effects on Soil Carbon and Nitrogen

Wood, C. W.; Mitchell, Robert J.; Zutter, Bruce R.; Lin, Chunying

doi:10.1097/00010694-199211000-00009

Cited by 27 publications

(13 citation statements)

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“…Those plants that take part in symbiotic nitrogen fixation may play an important role in providing nitrogen for the entire stand. Wood et al (1992) found significant nitrogen increments from preplant conditions at the Tallassee (AL) location when herbaceous vegetation was not controlled. Lespedeza accounted for 1 O-l 5% cover during the first 3 yr on both treatments and waxmyrtle, 10% at age 7 on the No Control treatment and less than 1% on Herb Control treatments.…”

Section: Discussionmentioning

confidence: 99%

Early Plant Succession in Loblolly Pine Plantations as Affected by Vegetation Management

Miller

Zutter

Zedaker

et al. 1995

Southern Journal of Applied Forestry

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A common study design has been used at 13 locations across the South to examine loblolly pine (Pinus taeda L.) plantations established using four vegetation control treatments after mechanical site preparation: (a) No Control, (b) Woody Control, (c) Herbaceous Control for 4 yr, and (d) Total Control. This research, the Competition Omission Monitoring Project (COMP), is monitoring both pine growth and plant succession. During the first 8 yr, the cover of herbaceous components and prevalent genera, along with pine, woody (nonpine), and total herbaceous cover were estimated annually in September. Stem numbers and heights of arborescent and nonarborescent woody species were measured during the first 5 yr and yr 8. There were 101 prevalent genera of herbaceous plants and 76 species/genera of woody plants present on the study sites, with a core group common to most. Herbaceous cover was rapidly reestablished on No Control and Woody Control treatments, with greater than 80% cover in the first year. After the first year, herbaceous cover steadily declined on No Control plots and was sustained when woody plants were eliminated. In general grasses dominated the herbaceous layer (mainly Andropogon and Panicum spp.) with cover peaking in yr 4. Woody control increased the actual cover of both grasses and forbs, but only the relative proportion of forbs, which peaked in yr 1-2. Woody control also increased the actual cover of vines and semiwoodies (mainly nontargeted Rubus spp.) by yr 6-8, but only the relative cover of semiwoodies. Development of the pine canopy cover was similar with woody and herbaceous control, but pine heights were greater with herbaceous control. Interestingly, herbaceous control did not increase total woody cover until year 8, but the proportion of arborescent tree to nonarborescent shrub cover was increased. Most arborescent species and rootstocks became established in the first year. South. J. Appl. For. 19(3):109-126.

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Section: Discussionmentioning

confidence: 99%

Early Plant Succession in Loblolly Pine Plantations as Affected by Vegetation Management

Miller

Zutter

Zedaker

et al. 1995

Southern Journal of Applied Forestry

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“…The study showed that the component of community species, individual density, richness and diversity of community species presented decline trend during succession in the Ziwulin forest in the Loess Plateau (Li and Shao, 2003), which further suggested that changes in belowground soil properties were relative to changes in aboveground plant species. The enhancing effect of herbaceous plants on contents of soil organic carbon and nitrogen, and nitrogen cycling (Wood et al, 1992;Ross et al, 1995) has been recorded. So there was lower organic C and total N under SF24 than that of SF17.…”

Section: Variation Of Organic Carbon and Nitrogen In Soilmentioning

confidence: 99%

Microbial biomass and nutrients in soil at the different stages of secondary forest succession in Ziwulin, northwest China

Jia

Cao

Wang

et al. 2005

Forest Ecology and Management

199

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“…Pinus and Liquidambar were each planted at densities of 0, 1, 2, and 4 plants/m 2 , and Andropogon at a density of 0, 4, and 16 plants/m 2 , for a total of 48 treatments. These three species were selected because they are frequent associates in early succession on cutover forest sites planted to Pinus taeda in the Southeast (Miller et al 1995), and because competition has been shown to be an important determinant of stand development and ecosystem function in these species (Britt et al 1991, Miller et al 1991, Wood et al 1992. The additive series design (Cousens 1991) used here provides an array of different densities and proportions of the three species, as suggested by Firbank and Watkinson (1990).…”

Section: Study Site and Experimental Designmentioning

confidence: 99%

Competition among Secondary-Successional Pine Communities: A Field Study of Effects and Responses

Mitchell

Zutter

Gjerstad

et al. 1999

Ecology

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Three common associates on secondary-successional pine sites (Andropogon virginicus, Liquidambar styraciflua, and Pinus taeda) were established in a field study in which a wide array of plant densities and species proportions were established using an additive series design. To mimic a specific competitive scenario (i.e., a managed earlysuccessional Pinus stand), Andropogon and Liquidambar were established a year prior to the establishment of Pinus. Competitive effect (the attenuation of resources) and competitive response (the growth of each species as a function of resource availability) were determined.Effect on soil water varied among species, depth of soil, and time. In the surface soil, soil water was largely influenced through non-uptake effects, while uptake effects were predominant in deeper portions of the solum. When competitor abundance was expressed on an aboveground biomass basis, rather than a density basis, species differences in effects on soil water were eliminated. Differences among the species in effects on soil water per unit leaf area or leaf biomass appear to be largely explained by differences in stomatal conductance. Predawn leaf-water potential was integrated over the season using a waterstress integral. Analysis of the water-stress integral suggested that Liquidambar and Andropogon both affected water available to Pinus; however, only Liquidambar affected Andropogon, and only Andropogon affected seasonal water available to Liquidambar. Light was most strongly influenced by Liquidambar density; however, as Andropogon density increased, the effects of Liquidambar were reduced.Andropogon response was correlated with light but not with water stress or leaf nitrogen. This reflects high light requirements and high water use efficiency of C 4 plants. Liquidambar response was related to water stress and leaf nitrogen, perhaps reflecting the greater nitrogen requirements of hardwoods. Pinus response was significantly related to all three resources individually, i.e., water stress, light, and leaf nitrogen. Pinus response was better explained by a regression model that included light and water stress than by water stress or light alone. Pinus growth as a function of water stress and light indicated that communities dominated by Liquidambar largely reduced Pinus growth through reduction in light, while communities dominated by Andropogon reduced Pinus growth primarily by increasing water stress. In mixed communities of Liquidambar and Andropogon, pine growth was constrained more equally by light and water stress.

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Loblolly Pine Plant Community Effects on Soil Carbon and Nitrogen

Cited by 27 publications

References 0 publications

Early Plant Succession in Loblolly Pine Plantations as Affected by Vegetation Management

Early Plant Succession in Loblolly Pine Plantations as Affected by Vegetation Management

Microbial biomass and nutrients in soil at the different stages of secondary forest succession in Ziwulin, northwest China

Competition among Secondary-Successional Pine Communities: A Field Study of Effects and Responses

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