Depending on the Distance between Forest Areas and Pollution Sources around Ulaanbaatar City of Mongolia
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2021, Vol 12, Issue 4
Abstract
Seed quality and seed germination are the major indicators determining the success of regeneration and structure in natural forest ecosystems. This study focuses on problems associated with seed quality and seed germination under air pollution impacts in the surrounding forest ecosystems of Ulaanbaatar city of Mongolia. The objectives were to test whether there was any negative effect of air pollutants on the site index, and to analyze the relationship between seed quality and distance from the city center (maximum pollution). The study was carried out in natural larch forests (Larix sibirica Ledeb.) growing in the vicinity of the capital of Mongolia. A total of eight 100×100 m (1 ha) sample plots were laid out using completely randomized sampling design along the main wind direction. Remoteness from the city center was 10, 15, 20 and 30 km both to the north and to the south. Results showed a high variation in stand mean height (p > 0.001) and diameter (p > 0.001) among selected forest areas. In general, all sampled forests belonged to bonitet / quality classes III, IV and V, which are considered as relatively poor growing conditions in terms of site index. Therefore, greater site index and seed quality were observed in the most distant locations from the city center, and contrary, the poorest seed quality was detected in locations close to the city center. This emphasizes that forests growing close to pollution sources exist with a potential risk of degradation, and their reproductive organs are more sensitive to the effects of pollutants. For citation: Udval B., Gerelbaatar S., Dashzeveg Ts., Lobanov A.I. Seed Quality of Larix sibirica Ledeb. Depending on the Distance between Forest Areas and Pollution Sources around Ulaanbaatar City of Mongolia. Lesnoy Zhurnal [Russian Forestry Journal], 2021, no. 4, pp. 23–35. DOI: 10.37482/0536-1036-2021-4-23-35 Acknowledgments: This research was carried out within the framework of the project “Study of Forest Ecosystems in the Green zone of Ulaanbaatar city” and funded by the Foundation for Science and Technology. We also thank John Stanturf for the language improvement of this article.
Authors and Affiliations
Bayarsaikahan Udval, Sukhbaatar Gerelbaatar, Tserenbaljir Dashzeveg, Anatoly I. Lobanov
Keywords
Related Articles
- EP ID EP695878
- DOI 10.37482/0536-1036-2021-4-23-35
- Views 197
- Downloads 0
Zonality of Forest Fuels and Their Pyrogenic Transformation in Pine Forests of Central Siberia
Fires in the forests of Siberia occur annually and cause enormous damage to natural resources. Therefore, studies of the natural forest fire hazard, one of the components of which are forest fuels, are relevant. The rese...
The Conceptual Model of Dendroflora Introduction in the Northern Latitudes of the Russian Plain
The increasing of the socio-aesthetic significance of urban green spaces, especially in the formation of a rigid urbanized human habitat, initiates the development of the theoretical foundations of stepwise introduction...
Improving the Technological Cycle of Microclonal Propagation of Rubus chamaemorus L.
The results of the study of the microclonal propagation of the cloudberry (Rubus chamaemorus L.) of the Leningradskaya and Kondinskaya forms at the stages of microclonal propagation itself and rooting of microshoots in i...
Introduced Species of Cedar and Larch in the Climate Conditions of the Kola Arctic Region
The purpose of this study was to investigate the history of growth of the introduced species Pinus sibirica Du Tour and Larix sibirica Ledeb. in the Murmansk region and their state in natural areas of preferential protec...
System Analysis of Process Efficiency of the Wheeled Forwarder
One of the promising directions of increasing productivity in forestry production is a systematic approach to specifying the process efficiency of the wheeled forwarder based on constructing a single technological connec...