Germination characteristics and diversity of soil seed banks and above-ground vegetation in disturbed and undisturbed oak forests

2013 ◽  
Vol 15 (4) ◽  
pp. 286-301 ◽  
Author(s):  
Mehdi Heydari ◽  
Hassan Pourbabaei ◽  
Omid Esmaelzade ◽  
David Pothier ◽  
Ali Salehi
Keyword(s):  
Seed Banks ◽  
Ground Vegetation ◽  
Oak Forests ◽  
Soil Seed Banks ◽  
Germination Characteristics

Seed germination characteristics and strategies of seeds stored in canopy and soil seed banks

2017 ◽  
Vol 37 (20) ◽  
Author(s):  
王东丽 WANG Dongli ◽  
焦菊英 JIAO Juying ◽  
王宁 WANG Ning ◽  
寇萌 KOU Meng ◽  
徐海燕 XU Haiyan ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seed Banks ◽  
Soil Seed Banks ◽  
Germination Characteristics

The effects of three years of fencing enclosure on soil seed banks and the relationship with above-ground vegetation of degraded alpine grasslands of the Tibetan plateau

2012 ◽  
Vol 364 (1-2) ◽  
pp. 229-244 ◽  
Author(s):  
Zhan-Huan Shang ◽  
Bin Deng ◽  
Lu-Ming Ding ◽  
Guo-Hua Ren ◽  
Guo-Sheng Xin ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Seed Banks ◽  
Ground Vegetation ◽  
The Tibetan Plateau ◽  
Alpine Grasslands ◽  
Soil Seed Banks ◽  
The Relationship

Study on the Effect of Adding Substrates on the Quantitative Characteristics and Germination Dynamic of Soil Seed Banks

2015 ◽  
Vol 1092-1093 ◽  
pp. 1254-1258
Author(s):  
Lin Wei Han ◽  
Meng Xuan He ◽  
Gang Wu
Keyword(s):  
Rice Husk ◽  
Seed Banks ◽  
Community Diversity ◽  
Organic Substrates ◽  
Mixed Substrates ◽  
Promoting Effect ◽  
Soil Seed Banks ◽  
Germination Characteristics ◽  
Inorganic Substrates ◽  
Seeding Emergence

In order to study the effect of adding substrates on soil seed banks (SSBs) germination characteristics, vermiculite (inorganic substrates), rice husk char (organic substrates) and their mixed substrates were selected to be added to SSBs by different ratios. After the germination test, the results show that SSBs in different treatments present different germination characteristics. In this test, the nutrition of organic substrates is more important for promoting the rate of seeding emergence, while the inorganic substrates is better for greater density and seeding community diversity. T1(rice husk char: soil=1:9), T5(rice husk char: vermiculite: soil=2:1:7) and T4(vermiculite: soil=3:7) correspond the best promoting effect on these three aspects. Thus the substrates selection should be determined according to specific objectives during vegetation restoration. Mixed substrates combine the advantages of organic and inorganic substrates, which leads to comparative advantages in all aspects.

Development of soil seed banks beneath synthesized meadow communities after seven years of climate manipulations

1998 ◽  
Vol 8 (4) ◽  
pp. 493-500 ◽  
Author(s):  
M. Olatunde Akinola ◽  
Ken Thompson ◽  
Susan H. Hillier
Keyword(s):  
Seed Bank ◽  
Plantago Lanceolata ◽  
Soil Surface ◽  
Abundant Species ◽  
Seed Banks ◽  
Low Fertility ◽  
Ground Vegetation ◽  
Small Contribution ◽  
Soil Seed Banks ◽  
Meadow Species

AbstractMeadow microcosms were established from seed on low-fertility soil of known seed bank composition, and subjected to manipulations of simulated grazing, cutting date, temperature and fertility for seven years. The composition and density of the seed bank was then determined in five 2-cm soil layers (0–2, 2–4, 4–6, 6–8 and 8–10 cm). The seed bank contained three distinct groups of species: species present in the original soil, sown species, and ‘others’. The seed bank was little affected by the experimental treatments, presumably because the sown species made only a small contribution to the seed bank. Nearly all the species in the original soil are known to possess persistent seed banks and had survived, although at reduced density, for seven years. Density of the most abundant species in this group, Sagina procumbens, had changed very little over seven years, confirming the well-documented longevity of the seeds of this species. Seeds of sown species made up only about a quarter of the seed bank, despite accounting for virtually all the above-ground vegetation. Of the sown meadow species, only Plantago lanceolata and Alopecurus pratensis were relatively abundant in the seed bank. These results strongly support the conclusion of other authors that most meadow species, once lost owing to the effects of fertilizers or inappropriate management, will not reestablish from the seed bank. Among species which were neither sown nor present in the original soil, the majority possessed adaptations for wind dispersal and had presumably dispersed into the experimental plots from outside. The most abundant member of this group, Betula pendula, had dispersed from a nearby tree. Density of Betula seeds declined sharply with depth, consistent with the view that seeds on the soil surface are rapidly lost, mainly through germination, but seeds that become buried survive much better. Seeds of Betula appear to be persistent but not particularly long-lived.

scholarly journals The effects of different types of woodstand disturbance on the persistence of soil seed banks

2011 ◽  
Vol 80 (2) ◽  
pp. 149-157 ◽  
Author(s):  
Anna J. Kwiatkowska-Falińska ◽  
Dorota Panufnik-Mędrzycka ◽  
Maciej Wódkiewicz ◽  
Izabela Sondej ◽  
Bogdan Jaroszewicz
Keyword(s):  
Seed Bank ◽  
Seedling Emergence ◽  
Species Abundance ◽  
Canopy Cover ◽  
Seed Banks ◽  
Ground Vegetation ◽  
Average Weight ◽  
Soil Seed Banks ◽  
Seedling Emergence Method ◽  
Seed Fall

The research was conducted on four patches of thermophilous oak wood in Białowieża Primeval Forest: A – with a woodstand: oak + approx. 30-year-old hornbeam + hornbeam brushwood; B – with a hornbeam stand formed by natural seed fall after logging (ca. 1920) oaks; C – after logging oaks and replanted (ca. 1965) with pine and oak; D – with a natural low-density oak stand. Species composition and seed bank density were estimated using the seedling emergence method. Seedling emergence was observed over two vegetation seasons. Research demonstrated that: 1) the species abundance of the seed banks depends on canopy cover (A, B approx. 50 species; C, D approx. 70 species); 2) the floristical similarity (Sørensen's index) of the seed bank and ground vegetation is higher in the undisturbed patch D (0.50) than in disturbed patches (0.30-0.35); 3) species diversity in plots A, B, C, D (H'=12.5; 13.4; 15.5; 16.9) and seed bank density per m<sup>2</sup> (432.5; 958.0; 1486.5; 2268.0) are negatively correlated with the degree of patch shading; 4) the average weight of diaspores in the seed banks of shady plots is lower (A, B approx. 0.003 g) than that of sunny plots (C, D approx. 0.08 g); 5) the share of long-lived diaspores increases in patches after logging.

scholarly journals Classification of Post-Fire Responses of Woody Plants to include Pyrophobic Communities

Fire ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 15 ◽  
Author(s):  
Lynda D. Prior ◽  
David M. J. S. Bowman
Keyword(s):  
Woody Plants ◽  
Seed Banks ◽  
Classification Systems ◽  
Woody Vegetation ◽  
General Category ◽  
Conifer Species ◽  
Soil Seed Banks ◽  
Obligate Seeder ◽  
In Fire

Developing standardised classification of post-fire responses is essential for globally consistent comparisons of woody vegetation communities. Existing classification systems are based on responses of species growing in fire-prone environments. To accommodate species that occur in rarely burnt environments, we have suggested some important points of clarification to earlier schemes categorizing post-fire responses. We have illustrated this approach using several Australasian conifer species as examples of pyrophobic species. In particular, we suggest using the term “obligate seeder” for the general category of plants that rely on seed to reproduce, and qualifying this to “post-fire obligate seeder” for the narrower category of species with populations that recover from canopy fire only by seeding; the species are typically fire-cued, with large aerial or soil seed banks that germinate profusely following a fire, and grow and reproduce rapidly in order to renew the seed bank before the next fire.

Soil seed banks and the effects of meadow management on vegetation change in a 10-year meadow field trial

2002 ◽  
Vol 39 (2) ◽  
pp. 279-293 ◽  
Author(s):  
R.S. Smith ◽  
R.S. Shiel ◽  
D. Millward ◽  
P. Corkhill ◽  
R.A. Sanderson
Keyword(s):  
Field Trial ◽  
Vegetation Change ◽  
Seed Banks ◽  
Soil Seed Banks

Seed bank composition and above-ground vegetation in response to grazing in sub-Mediterranean oak forests (NW Greece)

Plant Ecology ◽  
2008 ◽  
Vol 201 (1) ◽  
pp. 255-265 ◽  
Author(s):  
Evgenia Chaideftou ◽  
Costas A. Thanos ◽  
Erwin Bergmeier ◽  
Athanasios Kallimanis ◽  
Panayotis Dimopoulos
Keyword(s):  
Seed Bank ◽  
Ground Vegetation ◽  
Oak Forests
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