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Native Woody Plants Diversity and Density under Eucalyptus camaldulensis Plantation, in Gibie Valley, South Western Ethiopia
The aim of the study was to assess the impact of E. camaldulensis plantation established in a semi-arid area on native woody plants diversity and density. Nested quadrant plot design, having an area of 15 m × 15 m used to collect data. Totally, 37 species at the plantation and 30 species at the native woodland, belonging to 24 families, identified. Species diversity (H′) was 1.57 at the plantation and 2.09 at the woodland forest. As for density of understory woody plants (height ≥ 1 m) the plantation forest harbored 6, 604 stems/ha while the native woodland had 7, 347 stems/ha. Seedling density (height < 1 m) at the native woodland and at the plantation there were 11,436 stems/ha and 8,865 stems/ha, respectively. The similarity of woody species composition between the woodland forest and the plantation was low. However, in terms of autochthonous tree seed bank availability, authentic hypothesis seems to prove that if clear-cut patches replanted by introduced species that do not exceed 5 ha, they still significantly favour original forest regeneration and composition in a semi-arid area and surprisingly favors the regeneration of Dodonaea angustifolia and other native species important for soil conservation, timber, bee forage and medicinal use.
2013/3/4
The aim of the study was to assess the impact of E. camaldulensis plantation established in a semi-arid area on native woody plants diversity and density. Nested quadrant plot design, having an area o...
Seed Dispersal by Frugivorous Birds in a Coniferous Plantation
mixed conifer/broad-leaved forest frugivorous bird Japanese cedar plantation seed dispersal seed rain
2009/8/28
In order to evaluate the role of frugivorous birds in the dispersal of broad-leaved tree seeds in a plantation of Japanese cedar, Cryptomeria japonica D. Don, we monitored seed rain with 120 seed trap...
Spatial Distribution of Soil Water Repellency in a Japanese Cypress Plantation and an Adjacent Deciduous Broad-leaved Forest
deciduous broad-leaved forest forest soil Japanese cypress plantation spatial distribution water repellency
2009/8/28
Water repellency is recognized as an important soil property that can affect the flow and storage of water in forest soils at the slope scale, since it causes overland flow or preferential infiltratio...
Mitigating Effects of Broadleaved Forest Fragmentation on Birds:Proposal of Plantation Matrix Management
habitat loss landscape ecology patch area stand composition stand structure
2009/8/27
I reviewed the effects on forest birds of replacing broadleaved forests at the patch and landscape levels, with emphasis on replacement by plantations. I proposed methods mitigating such effects. Redu...
The Effects of Tree Height and Growth on the Density of Feeding Sites of the Cypress Bark Moth Epinotia granitalis (Lepidoptera: Tortricidae) in a Young Japanese Red Cedar Plantation
annual growth Cryptomeria japonica Epinotia granitalis larval feeding site tree size
2009/8/27
The author examined the effects of tree height and growth on the density of larval feeding sites of the cypress bark moth Epinotia granitalis, which causes wood discoloration in conifer plantations in...
Relationship between Stem Density and Interception Ratio for Coniferous Plantation Forests in Japan
conifer evapotranspiration forest management interception evaporation plantation stem density
2009/8/27
Summarizing 12 studies examining interception evaporation from coniferous plantation forests in Japan, we found a positive correlation between stem density and interception ratio. Regressing the corre...
The Relationship between Slope Position and Stand Structure of an Old Chamaecyparis obtusa Plantation in Northern Kyoto Prefecture,Japan
L-function old-aged forest plantation slope thinning
2009/8/24
We analyzed the size and spatial distribution of trees in relation to slope position in a 90-year-old Chamaecyparis obtusa plantation, which has never been thinned. The study plot was on a steep slope...
Secondary Dispersal of Pasania edulis Acorns by Apodemus speciosus into a Coniferous Plantation
Apodemus mice conifer plantation Pasania edulis scatter hoarding secondary dispersal
2009/8/24
In order to evaluate the role of Apodemus mice in invasion of Pasania edulis Makino into a plantation of Japanese cedar, Cryptomeria japonica D. Don, we studied the primary dispersal of acorns from pa...
The Effects of Thinning on the Spatial Distribution of Trees in an Old Chamaecyparis obtusa Plantation Quantitative Analysis Using the L-Function
long rotation old-aged stand spatial statistics tree spacing
2009/8/24
We investigated changes in the spatial distribution of trees in a 90-year-old Chamaecyparis obtusa plantation owned by Hieizan Enryakuji Temple using the L-function. The plantation is an example of lo...
Influence of a Fagus crenata Plantation with Different Weeding Periods on the Consequent Stand Structure in Cold Region with Snowiall
colonized broadleaved species Fagus crenata plantation weeding
2009/8/24
In cold regions with snowfall in Japan, unsuccessful Cryptomeria japonica plantations are often intended to convert into more natural forest in recent years. To improve such a practice, we examined ef...
Invasion and Growth Processes of Natural Broadleaved Trees and Influences of Thinning on the Processes in an Abies sachalinensis Plantation
Abies sachalinensis plantation broadleaved tree growth regeneration thinning
2009/8/24
To determine the invasion and growth processes of natural broadleaved trees in a conifer plantation, and to examine the influence of forest operations on these processes, we investigated the species c...
Effects of Thinning and Litter Removal on the Recovery of Riparian Vegetation in a Cryptomeria japonica Plantation
Cryptomeria japonica litter removal riparian area species diversity thinning
2009/8/24
The effects of thinning and litter removal treatments on the establishment of riparian vegetation were investigated in a Cryptomeria japonica plantation. The number of germinated seedlings and species...
Effects of Coniferous Plantation Thinning on Annual Interception Evaporation:Model Verification
coniferous plantations interception evaporation model thinning water resources
2009/8/21
For evaluating the effect of coniferous plantation thinning on water resources, our previous study (Komatsu et al., 2007c) developed a model for predicting changes in annual evapotranspiration caused ...
Effects of Strip-cutting on Stand Floor Micro Climate and Tree-species Diversity in a Japanese Cypress Plantation
edge effect diversity of tree species stand floor micro climate strip-cutting
2009/8/21
In a 21 years even-aged Japanese cypress plantation, we conducted investigation about the strip-cutting influences to the stand floor micro climates and vegetations for 15 months from cutting. The rel...
Root characteristics of tea [Camellia sinensis (L.) O. Kuntze] and silver oak [Grevillea robusta（A. Cunn）] in a mixed tea plantation at Munnar, Kerala
Feeder roots Mixed species plantations Rooting pattern Root starch reserves
2009/2/19
Rooting characteristics of tea (Camellia sinensis) and silver oak (Grevillea robusta) were evaluated in a mixed plantation of these species in the Western Ghats in Munnar, Kerala employing three techn...