YIELDS AND DOMINANCES OF MICRO-VEGETATION IN FOREST-STEPPE PASTURE NEARBY A POPULATION CENTER OF MONGOLIA

2015 ◽  
Vol 13 (2) ◽  
pp. 117-123
Author(s):  
G Chuluunbat ◽  
S Zolzaya ◽  
B Baasanjalbuu ◽  
S Yamasaki
Keyword(s):  
Plant Species ◽  
Forest Steppe ◽  
Effective Utilization ◽  
Dominance Ratio ◽  
Dominant Plant Species ◽  
Pasture Degradation ◽  
Potential Indicator ◽  
Agricultural Sciences ◽  
Population Center

A study was conducted in 2011 and 2012 on a forest-steppe pasture in danger of pasture degradation to determine pasture yields and plant dominances from differences in micro-vegetation, with the aim of contributing to conservation and effective utilization. In the pastures, two different micro-vegetation located conterminously were observed based on their topographies and coverage by dominant plant species: Site 1 (S1) on a hillside where Poa or grasses and herbs equally dominated and Site 2 (S2) in a pocket where herbs predominated followed by Poa or grasses. Yield was significantly increased from June to August, but decreased by October in both the sites in each year (p < 0.001). The yields in S2 were significantly (p < 0.001) or tended to be higher than those in S1 during all study periods. The relative summed dominance ratio (R-SDR2) of the grass was higher in S2 (34.0%) than in S1 (18.4%), and that of herbs was higher in S1 (64.2%) than in S2 (51.8%). It was concluded that R-SDR2 is a potential indicator of pasture condition, and that the proportion of grasses increase while that of herbs decrease as a pasture is well conserved and/or managed.Mongolian Journal of Agricultural Sciences Vol.13(2) 2014: 117-123

scholarly journals Photosynthetic parameters of a sedge-grass marsh as a big-leaf: effect of plant species composition

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Markéta Mejdová ◽  
Jiří Dušek ◽  
Lenka Foltýnová ◽  
Lenka Macálková ◽  
Hana Čížková
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Photosynthetic Parameters ◽  
Acorus Calamus ◽  
Dominant Plant Species ◽  
Local Plant ◽  
Rate Of Photosynthesis ◽  
Carex Acuta ◽  
Leaf P

AbstractThe study estimates the parameters of the photosynthesis–irradiance relationship (PN/I) of a sedge-grass marsh (Czech Republic, Europe), represented as an active “green” surface—a hypothetical “big-leaf”. Photosynthetic parameters of the “big-leaf” are based on in situ measurements of the leaf PN/I curves of the dominant plant species. The non-rectangular hyperbola was selected as the best model for fitting the PN/I relationships. The plant species had different parameters of this relationship. The highest light-saturated rate of photosynthesis (Asat) was recorded for Glyceria maxima and Acorus calamus followed by Carex acuta and Phalaris arundinacea. The lowest Asat was recorded for Calamagrostis canescens. The parameters of the PN/I relationship were calculated also for different growth periods. The highest Asat was calculated for the spring period followed by the summer and autumn periods. The effect of the species composition of the local plant community on the photosynthetic parameters of the “big-leaf” was addressed by introducing both real (recorded) and hypothetical species compositions corresponding to “wet” and “dry” hydrological conditions. We can conclude that the species composition (or diversity) is essential for reaching a high Asat of the “big-leaf ”representing the sedge-grass marsh in different growth periods.

scholarly journals Short-term root and leaf decomposition of two dominant plant species in a Siberian tundra

Pedobiologia ◽  
2017 ◽  
Vol 65 ◽  
pp. 68-76 ◽  
Author(s):  
Peng Wang ◽  
Jasper van Ruijven ◽  
Monique M.P.D. Heijmans ◽  
Frank Berendse ◽  
Ayal Maksimov ◽  
...  
Keyword(s):  
Plant Species ◽  
Leaf Decomposition ◽  
Short Term ◽  
Dominant Plant Species

scholarly journals Genetic Diversity of Dominant Plant Species in Tropical Land-Use Systems in Sumatra, Indonesia

2018 ◽  
Vol 11 ◽  
pp. 194008291881390
Author(s):  
Natalie Breidenbach ◽  
Sri Rahayu ◽  
Iskandar Z. Siregar ◽  
Ulfah J. Siregar ◽  
Hamzah ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Land Use ◽  
Plant Species ◽  
Land Use Systems ◽  
Dominant Plant Species

scholarly journals The resource role of flowering woody plants in increasing the insects biological diversity

2021 ◽  
Vol 38 ◽  
pp. 00067
Author(s):  
Tatiana Kuzmina ◽  
Elena Toropova
Keyword(s):  
Plant Species ◽  
High Power ◽  
Woody Plants ◽  
Woody Plant ◽  
Biological Diversity ◽  
Taxonomic Composition ◽  
Forest Steppe ◽  
Flowering Period ◽  
Northern Forest

The aim of the study was to assess the resource role of flowering woody plants in maintaining the biological diversity of insects. The studies were carried out in 2019–2020 in the northern forest-steppe of the Ob region during the flowering period of woody plants from the Oleaceae family of the genus Syringa: S. josikaea J. and S. vulgaris L. Insects were collected by mowing with an entomological net in the crowns and under-crown space. The flowering of plants attracted insects from more than 25 families from 7 orders. The largest number of insects belonged to the order Thysanoptera 79.2%, followed by representatives of the orders Hemiptera (7.1%) and Diptera (6.4%). The entomological faunas of S. josikaea and S. vulgaris differed significantly in their taxonomic composition, insects abundance, and their association with flowering periods. Low coefficients of similarity and high power of the factor “plant species” influence on biological diversity and the insects number were revealed. S. josikaea played a more significant role in maintaining the biological diversity of insects. Research showed that insects are associated with a certain species of woody plant.

scholarly journals Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina

Mycologia ◽  
2009 ◽  
Vol 101 (5) ◽  
pp. 612-621 ◽  
Author(s):  
Alejandra G. Becerra ◽  
Marta Cabello ◽  
Marcelo R. Zak ◽  
Norberto Bartoloni
Keyword(s):  
Plant Species ◽  
Arbuscular Mycorrhizae ◽  
Dominant Plant Species ◽  
Yungas Forests

scholarly journals “A herder’s duty is to think”: landscape partitioning and folk habitats of Mongolian herders in a mountain forest steppe (Khuvsugul-Murun region)

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
B. Gantuya ◽  
Á. Avar ◽  
D. Babai ◽  
Á. Molnár ◽  
Zs Molnár
Keyword(s):  
Plant Species ◽  
Northern Hemisphere ◽  
Habitat Preferences ◽  
Mountain Forest ◽  
Forest Steppe ◽  
Ecological Knowledge ◽  
Structured Interviews ◽  
Habitat Classification ◽  
Macro Scale ◽  
Conducting Research

Abstract Background Traditional habitat knowledge, like the classification of folk habitats and how people partition their landscape into habitats, is an emerging but still understudied part of traditional ecological knowledge. Our objectives were to reconstruct the folk habitats and the partitioning of the landscape into these folk habitats by Mongolian herders in Northern Mongolia and to compare it with other Northern Hemisphere boreal-temperate classifications. Methods The study area is located in Seruun Gilad (Khuvsugul province) and belongs to the mountain forest steppe of the Khangai region (dominated by meadow steppes and larch forests). Most herder families use the area for summer pasturing. Data collection was based on indoor and outdoor, structured and semi-structured interviews and interviews during landscape walks and participatory fieldwork. We interviewed 20 people using 76+ photos of plant species and 25+ photos of habitats and asked them to name and describe the habitats and describe the habitat preferences of the species. Results Mongolian herders distinguished at least 88 folk habitat categories and knew well the habitat preferences of the 76 plant species. They argued that a herder has to be observant of nature. The habitat classification was moderately lexicalized, with many descriptive expressions. Most habitats (77%) belonged to the meso-scale, while macro-scale habitats (like taiga, Gobi) and micro-scale habitats (like marmot burrow, top of the tussock) were few. Habitat names did not reflect directly the usefulness of the habitat. Classification was multidimensional; key dimensions were geomorphological and edaphic. There were some species (e.g., botyuul, hyag, shireg) and species groups (hot plants, leafy plants) that were often used to describe habitat types. Conclusions Landscape partitionings in the Northern Hemisphere differed considerably in the importance of various dimensions used, with edaphic, geomorphological, hydrological, and dominant species-based dimensions having higher importance, while land use, successional, and zoological dimensions having lower importance. We argue that conducting research on folk habitats will contribute to a deeper understanding of how nature is perceived by locals and to a more efficient management of the Mongolian pastures.

Leaf traits indicate survival strategies among 42 dominant plant species in a dry, sandy habitat, China

2009 ◽  
Vol 4 (4) ◽  
pp. 477-485 ◽  
Author(s):  
Jinhuan Liu ◽  
Dehui Zeng ◽  
Zhiping Fan ◽  
David Pepper ◽  
Guangsheng Chen ◽  
...  
Keyword(s):  
Plant Species ◽  
Leaf Traits ◽  
Survival Strategies ◽  
Dominant Plant Species ◽  
Sandy Habitat
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