scholarly journals The Relationship Between Landform, Soil Characteristics and Plant Community Structure in the Donglingshan Mountain Region, Beijing

2003 ◽  
Vol 27 (4) ◽  
pp. 496-502
Author(s):  
LIU Shi-Liang ◽  
MA Ke-Ming ◽  
FU Bo-Jie ◽  
KANG Yong-Xiang ◽  
ZHANG Jie-Yu ◽  
...  
Keyword(s):  
Community Structure ◽  
Plant Community ◽  
Soil Characteristics ◽  
Mountain Region ◽  
Plant Community Structure ◽  
The Relationship

Impacts of trails on cliff-edge forest structure

1995 ◽  
Vol 73 (6) ◽  
pp. 943-953 ◽  
Author(s):  
Pampang Parikesit ◽  
Douglas W. Larson ◽  
Uta Matthes-Sears
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Soil Properties ◽  
Plant Community ◽  
Forest Structure ◽  
Environmental Gradient ◽  
Soil Characteristics ◽  
Anthropogenic Factors ◽  
Plant Community Structure ◽  
Niagara Escarpment

Plant community structure and soil characteristics were quantitatively studied along forested cliff edges of the Niagara Escarpment in southern Ontario, Canada. The objective of the study was to try to differentiate between the effects of two gradients on vegetation structure: the environmental gradient between the cliff edge and dense forest, and an anthropogenic gradient, generated by the presence of major hiking trails parallel to the cliff edges. Species frequencies were determined along 69 transects distributed over eight sites with different amounts of past and present trampling disturbance. The data were analyzed using cluster and ordination analysis as well as analyses of variance. The results showed that soil characteristics were the major influence organizing the vegetation of cliff-edge forests and that soil properties and plant community structure were more strongly influenced by anthropogenic factors than by the environmental gradient between cliff edge and forest. Trampled plots had some properties in common with cliff-edge plots. Species richness was highest at intermediate trail-use levels; abandonment of heavily disturbed trails resulted in the restoration of species richness, but most new colonizing plants were disturbance-tolerant ruderals. Soil properties did not completely recover even after 10 years of trail abandonment. The results suggest that the current use of cliff edges along the Niagara Escarpment is nonsustainable, and reversing its effects on cliff-edge forest structure may take a considerable amount of time. Key words: Niagara Escarpment, plant community ecology, disturbance, trampling, cluster analysis, ordination.

Effects of fertilization gradients on plant community structure and soil characteristics in alpine meadow

2013 ◽  
Vol 33 (10) ◽  
pp. 3103-3113 ◽  
Author(s):  
王长庭 WANG Changting ◽  
王根绪 WANG Genxu ◽  
刘伟 LIU Wei ◽  
王启兰 WANG Qilan
Keyword(s):  
Community Structure ◽  
Plant Community ◽  
Alpine Meadow ◽  
Soil Characteristics ◽  
Plant Community Structure

scholarly journals Soil and Plant Phytoliths from the Acacia-Commiphora Mosaics at Oldupai Gorge (Tanzania)

2018 ◽  
Author(s):  
Julio Mercader ◽  
Siobhan Clarke ◽  
Mariam Bundala ◽  
Julien Favreau ◽  
Jamie Inwood ◽  
...  
Keyword(s):  
Community Structure ◽  
Plant Community ◽  
Fossil Record ◽  
Statistical Significance ◽  
Categorical Variables ◽  
Plant Community Structure ◽  
Chi Square ◽  
Genus Homo ◽  
The Relationship ◽  
Two Populations

This paper studies soil and plant phytoliths from the Eastern Serengeti Plains, specifically the Acacia-Commiphora mosaics from Oldupai Gorge, Tanzania, as present-day analogue for the environment that was contemporaneous with the emergence of the genus Homo. We investigate whether phytolith assemblages from recent soil surfaces reflect plant community structure and composition with fidelity. The materials included 35 topsoil samples and 29 plant species (20 genera, 15 families). Phytoliths were extracted from both soil and botanical samples. Quantification aimed at discovering relationships amongst the soil and plant phytoliths relative distributions through Chi–square independence tests, establishing the statistical significance of the relationship between categorical variables within the two populations. Soil assemblages form a spectrum, or cohort of co-ocurring phytolith classes, that will allow identifying environments similar to those in the Acacia-Commiphora ecozone in the fossil record.

scholarly journals Soil and plant phytoliths from the Acacia-Commiphora mosaics at Oldupai Gorge (Tanzania)

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8211 ◽  
Author(s):  
Julio Mercader ◽  
Siobhán Clarke ◽  
Mariam Bundala ◽  
Julien Favreau ◽  
Jamie Inwood ◽  
...  
Keyword(s):  
Community Structure ◽  
Plant Species ◽  
Plant Community ◽  
Fossil Record ◽  
Statistical Significance ◽  
Categorical Variables ◽  
Plant Community Structure ◽  
Chi Square ◽  
The Relationship ◽  
Two Populations

This article studies soil and plant phytoliths from the Eastern Serengeti Plains, specifically the Acacia-Commiphora mosaics from Oldupai Gorge, Tanzania, as present-day analogue for the environment that was contemporaneous with the emergence of the genus Homo. We investigate whether phytolith assemblages from recent soil surfaces reflect plant community structure and composition with fidelity. The materials included 35 topsoil samples and 29 plant species (20 genera, 15 families). Phytoliths were extracted from both soil and botanical samples. Quantification aimed at discovering relationships amongst the soil and plant phytoliths relative distributions through Chi–square independence tests, establishing the statistical significance of the relationship between categorical variables within the two populations. Soil assemblages form a spectrum, or cohort of co-ocurring phytolith classes, that will allow identifying environments similar to those in the Acacia-Commiphora ecozone in the fossil record.

scholarly journals Altitudinally coordinated pattern of plant community structure in the Shivapuri National Park, Nepal

1970 ◽  
Vol 18 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Shalik Ram Sigdel
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Plant Species ◽  
Plant Community ◽  
National Park ◽  
Climatic Factors ◽  
Flower Colour ◽  
Basal Area ◽  
Plant Community Structure ◽  
Closed Canopy

Study on plant community structure was undertaken in different altitudinal ranges of Shivapuri National Park. The general objective of this study is to analyse different plant community structure in Shivapuri National Park with regards to altitudinal variation. The forest was divided into three distinct altitudinal ranges on the basis of dominancy. In each altitudinal range standard quadrats method was applied for vegetation analysis. The highest number of species was found in site II. All the ecological parameters of the plant species were higher in site II except Basal Area of tree that was highest in site III. The pattern of distribution of plant species was not uniform according to altitude. At higher elevation, the forest was mature with almost closed canopy and trees were large; so the tree density was low. Species richness was highest in site II. Species diversity among tree and shrub species was higher in site I. But for herb species diversity was higher in site II for both seasons. Such type of variations may be due to nature of soil i.e. acidity, nutrient availability and other micro-climatic factors. The most noteworthy thing was that variation in flower colour of Rhododendron arboreum i.e. deep scarlet at low altitude, but it gradually changed into pinkish white as altitude increased. Key words: Altitude, Density, Plant community, Species diversity doi: 10.3126/banko.v18i1.2161 Banko Janakari, Vol. 18, No. 1, 11-17

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