A Study on the Current Status of Ecological Restoration Plant Species Use1a

2021 ◽  
Vol 35 (5) ◽  
pp. 525-547
Author(s):  
Dong-gil Cho ◽  
2017 ◽  
Vol 18 (3-4) ◽  
pp. 37-50
Author(s):  
B. A. Baranovsky ◽  
I. A. Ivanko ◽  
A. V. Kotovych ◽  
L. A. Karmyzova ◽  
N. O. Roschina

Biodiversity is important for maintaining of forest ecosystems functioning and in their resistance to anthropo-climatic challenges. Assessment of species diversity and species ecomorphic analysis is the basis for determining their current status, rational use and protection. At the end of the nineteenth century, Belgard A. L. (1950) in his system of ectomorphs using terminology presented by Dekandol (1956) and Warming (1903), had proposed a «trophomorph» category that reflected species relation to soil richness. Analysis of trophomorphs reflects diversity of soil conditions in different biotopes within forest ecosystems. The article gives an analysis on vascular plant trophomorphs distribution in various forest biotopes of Oril river valley. Flora and vegetation surveys in forests of Oril river valley were carried out by A. L. Belgard and T. F. Kirichenko since the 30s of the 20th century. The latest data on forest vegetation state within the Oril river valley were given in the works of Y. Gamulja and V. Manyuk. Generalized bioecological analysis of flora Oril river valley was represented in the monograph of B. Baranovsky, V. Maniuk, I. Ivanko, L. Karmyzova «Flora analysis of the Oril National Park». As is known, edaphic conditions of plant habitats in a first place are determined by soil fertility depending on the plant nutrients availability. Soddy-forest soil on sandy terrace of Oril river valley has a relatively low content of humus and total nitrogen: 2 and 0.04 %. Under these conditions, pine phytocenoses were ocсurred that represented exclusively by artificial plantings. Soils in the depressed area of Oril river floodplain are much richer in humus and nitrogen content (10 and 0.37 %). Here, arboreal and shrubby vegetation is represented by communities with common oak. On the second terrace of Oril river valley, forest vegetation is represented by artificial pine forests. Microcenoses with black locust, amorpha and willow occurred on elevated areas of sandy terrace (arena). In the depressed area of the arena, microcenoses with aspen and birch, aspen, Tatarian maple, amorpha, black locust were occurred additionally to pine communities. In the Oril floodplain, native arboreal and shrubby vegetation is represented mainly by communities with common oak. In depressed areas of the floodplain, microcenoses with white poplar, black poplar, aspen, Tatarian maple, amorpha, willow (Salix alba, S. fragilis), osiery (Salix cinerea, S. triandra),  and alder are fragmentarily occurred. In conditions of elevated areas of the floodplain, 196 vascular plants species were found, and 105 species in depressed areas. On the second terrace, 38 plant species grow on the elevated areas, and 54 species on the depressed ones. Flora includes 45 adventive plant species. In depressed floodplain areas, oligotrophs are represented by 7 species, mesotrophs by 126 species, megatrophs by 50 species, and in elevated areas: 7, 126 and 25 species, respectively. In depressed areas of arena oligotrophs are represented by 4 species, mesotrophs by 29 species, and megatrophs by 11, elevated areas: 7 and 21 species respectively, and megatrophs were absent.


2006 ◽  
Vol 7 (4) ◽  
pp. 347-359 ◽  
Author(s):  
Armin Bischoff ◽  
Beatrice Vonlanthen ◽  
Thomas Steinger ◽  
Heinz Müller-Schärer

2012 ◽  
Vol 599 ◽  
pp. 441-447 ◽  
Author(s):  
Yan Qiang Li ◽  
Ying He Jiang ◽  
Zhao Hua Li

Four species of ornamental plants, namely Thalia dealbata Fraser ex Roscae, Hydrocotyle vulgaris L., Iris pseudacorus L. and Canna indica L. were planted on the ecological floating bed, respectively, so as to study their effects of removing pollutants from polluted water. The experiment lasted for 42 days. The results indicate that the four plant species are adaptable to grow in polluted water and their fresh weights, heights and roots increased significantly at the end of the experiment. The growth rates are in the sequence of Canna > Thalia dealbata > Iris > Hydrocotyle vulgaris. The four test plant species have different effects on DO concentration in water, and the influence degrees are in the sequence of Hydrocotyle vulgaris > Thalia dealbata > Canna > Iris. All of the four plant species have a strong ability to remove NH4+-N, TN, TP and CODcr,, which is higher than that of the control treatments (P<0.05). The efficiencies of removing NH4+-N TN, TP and CODcr, by Hydrocotyle vulgaris , Thalia dealbata , Canna and Iris are 96.83%, 90.32%, 82.75% and 78.73%; 78.98%, 76.15%, 70.87% and 62.43%; 62.28%, 56.57%, 60.00% and 54.84%; 93.99%, 92.96%, 92.45% and 92.39%, respectively. Seeing that they have significant removal efficiencies on pollutants, the four plant species are recommended as ornamental plants applicable to ecological restoration engineering of polluted water in urban areas.


Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 138
Author(s):  
Celia De Moya-Ruiz ◽  
Pilar Rabadán ◽  
Miguel Juárez ◽  
Pedro Gómez

Viral infections on cucurbit plants cause substantial quality and yield losses on their crops. The diseased plants can often be infected by multiple viruses, and their epidemiology may depend, in addition to the agro-ecological management practices, on the combination of these viral infections. Watermelon mosaic virus (WMV) is one of the most prevalent viruses in cucurbit crops, and Moroccan watermelon mosaic virus (MWMV) emerged as a related species that threatens these crops. The occurrence of WMV and MWMV was monitored in a total of 196 apical-leaf samples of watermelon and pumpkin plants that displayed mosaic symptoms. The samples were collected from 49 fields in three major cucurbit-producing areas in Spain (Castilla La-Mancha, Alicante, and Murcia) for three consecutive (2018–2020) seasons. A molecular hybridization dot-blot method revealed that WMV was mainly (53%) found in both cultivated plants, with an unadvertised occurrence of MWMV. To determine the extent of cultivated plant species and mixed infections on viral dynamics, two infectious cDNA clones were constructed from a WMV isolate (MeWM7), and an MWMV isolate (ZuM10). Based on the full-length genomes, both isolates were grouped phylogenetically with the Emergent and European clades, respectively. Five-cucurbit plant species were infected steadily with either WMV or MWMV cDNA clones, showing variations on symptom expressions. Furthermore, the viral load varied depending on the plant species and infection type. In single infections, the WMV isolate showed a higher viral load than the MWMV isolate in melon and pumpkin, and MWMV only showed higher viral load than the WMV isolate in zucchini plants. However, in mixed infections, the viral load of the WMV isolate was greater than MWMV isolate in melon, watermelon and zucchini, whereas MWMV isolate was markedly reduced in zucchini. These results suggest that the impaired distribution of MWMV in cucurbit crops may be due to the cultivated plant species, in addition to the high prevalence of WMV.


Biology ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 226
Author(s):  
Chamran Hemmati ◽  
Mehrnoosh Nikooei ◽  
Ali M. Al-Subhi ◽  
Abdullah M. Al-Sadi

Phytoplasmas that are associated with fruit crops, vegetables, cereal and oilseed crops, trees, ornamental, and weeds are increasing at an alarming rate in the Middle East. Up to now, fourteen 16Sr groups of phytoplasma have been identified in association with more than 164 plant species in this region. Peanut witches’ broom phytoplasma strains (16SrII) are the prevalent group, especially in the south of Iran and Gulf states, and have been found to be associated with 81 host plant species. In addition, phytoplasmas belonging to the 16SrVI, 16SrIX, and 16SrXII groups have been frequently reported from a wide range of crops. On the other hand, phytoplasmas belonging to 16SrIV, 16SrV, 16SrX, 16SrXI, 16SrXIV, and 16SrXXIX groups have limited geographical distribution and host range. Twenty-two insect vectors have been reported as putative phytoplasma vectors in the Middle East, of which Orosius albicinctus can transmit diverse phytoplasma strains. Almond witches’ broom, tomato big bud, lime witches’ broom, and alfalfa witches’ broom are known as the most destructive diseases. The review summarizes phytoplasma diseases in the Middle East, with specific emphasis on the occurrence, host range, and transmission of the most common phytoplasma groups.


2020 ◽  
Vol 12 (3) ◽  
pp. 15326-15354
Author(s):  
Taranisen Panda ◽  
Bikram Kumar Pradhan ◽  
Rabindra Kumar Mishra ◽  
Srusti Dhar Rout ◽  
Raj Ballav Mohanty

We present the information about angiosperm species in Bhadrak District of Odisha, India. In so doing, we assess the state of floristic knowledge across ecoregions of the district and pinpoint our understanding of the district flora. This study is first of its kind conducted in the district showing current status of the angiosperm diversity. A total of 383 species (262 native species and 121 non-native species) belonging to 282 genera under 93 families are recorded as per APG III classification. These taxa are distributed in 12 superorders and 39 orders; 26.7% of the native species were reported from the superorder Fabids, 20.6% from superorder Malvids, 19.8% from superorder Lamids and 15.6% from superorder Commelinids. One hundred and twenty one non-native species were represented in 12 superorders. Native species of the order Fabales (35), Poales and Lamiales (27) each, Malphigiales (18), Malvales (14), Gentianales (13), Carylophyllales and Solanales (12) each and Myrtales and Sapindales (11) each, account for about 68.7% of the species in the district. Eighty one non-native species belong to these orders. The analysis of the plant species based on growth habits showed highest proportion of herbs followed by trees, shrubs and climbers.  Some of the reported species are used for the treatment of various ailments and also for edible purposes. Plant species diversity, distribution and population structure provide baseline information for conservation and sustainable management of available resources.


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