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Sukhbaatar Gerelbaatar,Chimednyam Dorjsuren,Nachin Baatarbileg,Ganbaatar Batsaikhan,Gradel Alexander 한국산림과학회 2023 Forest Science And Technology Vol.19 No.1
The accurate estimation of tree above-ground (AGB) and below-ground (BGB) biomass components and their root/shoot ratio play key roles in stand and country-level forest biomass and carbon stock estimation. Nevertheless, site-specific and appropriate biomass equations and root/shoot ratio are hardly available for natural larch (Larix sibirica Ledeb.) forests in Mongolia. The present study aimed (1) to develop allometric equations to estimate the above- and below-ground biomass of L. sibirica trees, and (2) to estimate the root/shoot ratio applicable for estimating the root biomass based on above-ground biomass of natural larch forests in northern Mongolia. A total of 40 trees with DBH ranging from 6.8 to 40.8 cm were sampled for tree biomass analyses. For each biomass component, we calculated the proportion of biomass allocated to different components, and also tested four allometric equations based on diameter at breast height (DBH) and height (H) as independent variables. Our results, based on measurements of oven-dried biomass, revealed that stem biomass on average accounted for 44.5% and followed by branch (28.6%) and root (19.9%) biomass, respectively. Stem and branch biomass proportions were gradually increased with increasing DBH, while a contrary trend was observed for needles. The root/shoot ratio averaged 0.25. A comparison of the allocation of root biomass by diameter fractions showed an ever-growing trend of coarse roots with an increase in stem diameter, which often exceeded more than 50% of the total root biomass. However, biomass equations, which include both DBH and H were more precise than equations that are solely based only on DBH. Consequently, among the proposed allometric regression models for estimating the AGB and BGB, the equation y ¼ aDbHc was selected as the best-fitted equation for estimating each biomass component in Siberian larch forests. These allometric equations are available to be used for the estimation of natural larch forest biomass and carbon stocks in the Khentii Mountains of Mongolia, where extreme continental climate conditions dominate.
Climate Change Impact on the Tuul River Flow in a Semiarid Region in Mongolia
Sukhbaatar, Chinzorig,Sajjad, Raja Umer,Lunten, Janchivdorj,Yu, Seung-Hoon,Lee, Chang-Hee Wiley (John WileySons) 2017 Water environment research Vol.89 No.6
<P>This study investigated the impact of climate change on the Tuul River flow in a semiarid region in Mongolia using statistical methods and the Soil and Water Assessment Tool (SWAT). The authors found that the precipitation showed cyclic variability (three dry and two wet periods) at inter-and multi-decadal scales throughout the study period (1945-2012). Both river flow and actual evapotranspiration (ET) showed a positive relationship with precipitation. In addition, the river flow further decreased due to increased water loss in percentage via actual ET even though the amount of actual ET decreased during dry periods. A significant increase in air temperature by 1.3 to 1.8 degrees C was recorded during latest dry period (1996-2012). Increase in temperature resulted in an added stressor, where water loss in percentage via actual ET increased more and resulted in an additional decrease in the river flow. This study concluded that precipitation has a stronger influence on the Tuul River flow than temperature.</P>
Гэсэрийн туужийн өгүүлэмжийг бүтцийн онолын үүднээс задлан шинжлэх нь
Dashdejid Sukhbaatar 한국몽골학회 2023 몽골학 Vol.- No.75
The renowned “Epic of Geser Khan” is a vital part of Mongolian cultural heritage, woven with captivating folklore and legends. When it gained popularity in Mongolia, it led to various versions like “Peking woodblock printed Geser,” “Nomch Khatan’s Geser,” “Monk Zaya Pandita’s Geser,” “Zamlin Senchin’s Biography,” “Mongolian Lin Geser,” “Story of Tseveen’s Geser,” and “Geser in clear script.” In 1959 and 1960, B. Renchin and Ts. Damdinsuren contributed introductions and published these versions in the ‘Mongolian Memorial Writing Conference’ series, providing concise and detailed summaries in terms of content and size. Scholars believe that the narrative structures of the versions of “Peking woodblock printed Geser,” “Monk Zaya Pandita’s Geser,” “Nomch Khatan’s Geser,” and “Story of Tseveen’s Geser” share the similarity. It is suggested that “Yun Fu Se’s Geser,” published in 1716, is considered the subsequent volume of the “Peking woodblock printed Geser.” Hence, the objective is to scrutinize the narrative patterns within the novels “Yun Fu Se’s Geser” and “Peking woodblock printed Geser”, aiming to clarify and explain the interrelationship between these versions. It is a method of imagining epic events without a specific sequence. When comparing the two volumes, Firstly, it follows a common sequence in Mongolian epics. Time is often emphasized at the start, detailing the hero, his loyal companion, the assisting knight, and sworn oaths. Various obstacles are then introduced in diverse ways. Secondly, despite the Hero’s triumph, a contradiction arises as the seeds of suffering ripen within him. In Geser’s youth, an archenemy seizes his possessions and robs his parents, leading to Geser’s growth into a hero. This recurring pattern shapes the overall structure of the novel. The ensuing analysis employs structural theory to explicate internal connections, detailing how a fixed typology was utilized to iterate and elaborate upon the content of Geser’s novel. Thirdly, the queen gets captured, the hero’s home faces an invasion, and the hero chases and rescues, restores order, defeats enemies, and gains glory. The story of the Mongolian epic revolves around two main themes: the adventure of the hero’s wedding, and the battle against the monster, witch, or the other tribes. Based on these two themes, the new chapters of Geser’s novel, enriched with stories of heroes’ adventures, and heroic battles were created in interaction with oral and written traditions. Chapters XII and XIII of “Yun Fu Se’s Geser” exhibit a similar syntagmatic structure to the battle group featuring Sharaygol’s three kings in “Beijing Tiger’s Geser.” However, in “Yun Fu Se’s Geser” the events unfold on a grand scale, characterized by a high narrative frequency and a rich linguistic composition. Notably, these chapters align more with the tradition of written literature, preserving a distinct emphasis on detailed character descriptions and pronounced event depictions, in contrast to the oral tradition.