Comparison of Landscape and Floristic Diversity in Plain Catchments at the Level of Elementary Regions

2020 ◽  
pp. 191-204
Author(s):  
Dmitry V. Zolotov ◽  
Dmitry V. Chernykh
Keyword(s):  
Floristic Diversity

Vegetation of sandy coasts of Lake Baikal

2016 ◽  
pp. 46-66
Author(s):  
Тю Фю Dulepova
Keyword(s):  
Lake Baikal ◽  
Lake Basin ◽  
Floristic Diversity ◽  
Southern Siberia ◽  
Irkutsk Region ◽  
Relief Formation ◽  
The Republic ◽  
River Valleys ◽  
High Degree ◽  
Semiarid Conditions

The aeolian processes play an important role in the relief formation under the semiarid conditions of the intermountain basins of Southern Siberia. Ancient sand landforms occur in different regions of Siberia — the Ob, Chuya, Аley, Yenisei, Аngara, Selenga, Chikoy, Khilok and Chara river valleys and Lake Baikal coasts. The sandy coasts of Lake Baikal are of great interest in terms of floristic diversity determined by a high degree of endemism. Despite centuries of study of the lake basin, sand vegetation is poorly described in the literature. This study presents an analysis of 184 relevés of psammophytic vegetation from the Republic of Buryatia (Severobaikalsky, Barguzinsky, Pribaikalsky districts) and Irkutsk region (Olkhon Island) obtained in 2009–2014.

Floristic Diversity and Fundamental Features of Wild Seed Plants in Jiangxi Province

2012 ◽  
Vol 30 (1) ◽  
pp. 22
Author(s):  
Xian-Lan DENG ◽  
Yang WU ◽  
Yu-Cheng LIU ◽  
Zhuo ZHENG
Keyword(s):  
Jiangxi Province ◽  
Seed Plants ◽  
Floristic Diversity ◽  
Wild Seed

Floristic diversity of the Tagdempt region, Tiaret Mountains, Algeria

2020 ◽  
Vol 40 (4) ◽  
pp. 296-299
Author(s):  
Nouar Belgacem ◽  
Hasnaoui Okkacha ◽  
Maamar Benchohra ◽  
Miara Mohamed Djamel
Keyword(s):  
Floristic Diversity

Study of the floristic diversity of Acacia tortilis population- in Bechar region (Southwestern Algeria)

2019 ◽  
Vol 9 (4) ◽  
pp. 133-141
Author(s):  
Guenaia Abdelkader ◽  
Hasnaoui Okkacha ◽  
Bekkouche Assia
Keyword(s):  
Sustainable Use ◽  
Diversity Indices ◽  
Floristic Diversity ◽  
Acacia Tortilis ◽  
Important Species ◽  
Disturbance Index ◽  
Moricandia Arvensis ◽  
Biological Spectrum ◽  
Flora Diversity ◽  
Risk Loss

For the management and sustainable use of natural bio-resources it is necessary to quantify and valorize this heritage. In the case of the floristic diversity of Acacia tortilis, the only natural woody stand in Bechar-Algeria, scanty studies have been undertaken. Hence in this study, the general overview of the flora diversity state in the 58 plots of 9 stations was made by the analysis of various indexes: Shannon, Simpson, species evenness, floristic richness, disturbance index, biological and biogeographically spectra. We listed 103 species belonging to 37 families and 85 genus, the important plants belonged to the Asteraceae and Brassicaceae. The most important species are: Pulicaria crispa, Asteriscus graveolens, Launea arborescens, Matricaria pubescens, Moricandia arvensis, Farsetia aegyptiaca, Zilla macroptera. The biological spectrum indicated a dominance of the Chamaephytes and the predominance of the Therophytes; the phytogeographic spectrum showed an important endemism (44%) in which 36% species belong to the SaharoArabian element; The Shannon, Simpson, and Evenness diversity indices, were relatively high, thereby indicating a diversity variation between the stations, witch increased South towards North. It was prominent in Zouzfana, Taghit, and Abadla stations, and the higher values of disturbance Index reflected the greater level of anthropization in these courses. The future accumulation of this regression, many risk loss of the last naturally wall of desertification, biodiversity, national economy and sand advancement. Therefore, it is recommended to apply pastures protection, pastoral charge control, and elaborate an environmental value of this species. 

Floristic Diversity Along An Altitudinal Gradient in Lakadmandi Beat of Kalatop Khajjiar Wildlife Sanctuary of District Chamba, Himachal Pradesh

2016 ◽  
Vol 39 (2) ◽  
pp. 101-110
Author(s):  
R. Verma
Keyword(s):  
Medicinal Plants ◽  
Plant Species ◽  
Altitudinal Gradient ◽  
Himachal Pradesh ◽  
Ex Situ ◽  
Floristic Diversity ◽  
Wildlife Sanctuary ◽  
Cedrus Deodara ◽  
Quercus Leucotrichophora ◽  
Herb Species

A study was conducted to understand the floristic diversity along an altitudinal gradient with elevations varying from 1800-2400m above msl in Lakadmandi beat of Kalatop Khajjiar Wildlife Sanctuary in district Chamba, Himachal Pradesh during 2011. Total number of plant species was 81 belonging to 52 families and 76 genera. The dominant families were Asteraceae, Rosaceae, Pinaceae and Polygonaceae. The number of trees species was 6, 6 and 10 with the dominance of Quercus leucotrichophora, Cedrus deodara and Cedrus deodara at 1800-2000m, 2000-2200m and 2200-2400m elevation ranges respectively. The number of shrub species was 16, 13 and 23 with the dominance of Quercus leucotrichophora sapling, Sarcococca saligna and Sarcococca saligna at 1800-2000m, 2000-2200m and 2200-2400m elevations respectively. The number of herb species was 46, 46 and 58 at 1800-2000m, 2000-2200m and 2200-2400m elevation ranges respectively. On the basis of Importance Value Index (IVI), Valeriana jatamansii was the dominant herb at 2000-2200m and 2200-2400m elevation ranges respectively. The distribution pattern of most of plant species was contiguous at all altitudinal ranges. Index of diversity for herb species in these elevational ranges was 3.420, 3.568 and 3.250. Out of 40 medicinal plant species recorded from the area, 3 species i.e. Paris polyphylla, Podophyllum hexandrum and Taxus wallichiana fall in the category of threatened plants. The better conservation of natural resources can be done through promotion of community based conservation, ex-situ conservation through tissue culture, developing cultivation technologies and nurseries of medicinal plants and conducting of regular training on the procedure of medicinal plants collection and processing among the end users.

Floristic Diversity of Asan Wetland, Uttarakhand: A Checklist

2017 ◽  
Vol 40 (2) ◽  
pp. 133-137
Author(s):  
Mohit Kumar Singh ◽  
◽  
A.K. Tripathi ◽  
V. Jeeva ◽  
Sumer Chandra ◽  
...  
Keyword(s):  
Eichhornia Crassipes ◽  
Aquatic Macrophyte ◽  
Research Work ◽  
Hydrilla Verticillata ◽  
Grass Species ◽  
Floristic Diversity ◽  
Tall Grass ◽  
Resistant Species ◽  
The Given ◽  
Support Research

Asan wetland is a man-made wetland located in Uttarakhand state. In the given study, efforts have been made to study the floristic diversity and species composition of the aquatic macrophyte in Asan wetland and provide a check list. Sixty seven species were recorded under 32 families being maximum in Cyperaceae followed by Poaceae and Asteraceae. Remaining families comprised either one or two species each. Among all the recorded species, monocots (54%) were dominated over dicots (42%) and remaining 4% comprised ferns. Herbaceous macrophytes were found growing abundantly (54%) which are followed in degree of prevalence by the grasses (21%), sedges (18%), shrubs (4%) and climbers (3%). In addition, this study also revealed that pollution resistant species like Bacopa monnieri, Hydrilla verticillata, Vallisneria spiralis and Eichhornia crassipes along with tall grass species which grow in shallow water are spreading considerably that indicates an increasing pollution in the wetland. The present study will provide an important set of informations to support research work like limnological studies, productivity, conservation and management programs of this wetland.

scholarly journals Floristic diversity of the soil weed seed bank in a rice-growing area of Brazil: in situ and ex situ evaluation

2013 ◽  
Vol 27 (3) ◽  
pp. 465-471 ◽  
Author(s):  
Mário Luiz Ribeiro Mesquita ◽  
Leonaldo Alves de Andrade ◽  
Walter Esfrain Pereira
Keyword(s):  
Seed Bank ◽  
Ex Situ ◽  
Floristic Diversity ◽  
Weed Seed
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