Chenlemuge, Tselmeg

[["dc.bibliographiccitation.firstpage","830"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","844"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Klinge, Michael"],["dc.contributor.author","Degener, Jan"],["dc.contributor.author","Khishigjargal, Mookhor"],["dc.contributor.author","Chenlemuge, Tselmeg"],["dc.contributor.author","Bat-Enerel, Banzragch"],["dc.contributor.author","Yeruult, Yolk"],["dc.contributor.author","Saindovdon, Davaadorj"],["dc.contributor.author","Ganbaatar, Kherlenchimeg"],["dc.contributor.author","Tsogtbaatar, Jamsran"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2017-11-28T10:03:29Z"],["dc.date.available","2017-11-28T10:03:29Z"],["dc.date.issued","2016"],["dc.description.abstract","The boreal forest biome represents one of the most important terrestrial carbon stores, which gave reason to intensive research on carbon stock densities. However, such an analysis does not yet exist for the southernmost Eurosiberian boreal forests in Inner Asia. Most of these forests are located in the Mongolian forest-steppe, which is largely dominated by Larix sibirica. We quantified the carbon stock density and total carbon pool of Mongolia's boreal forests and adjacent grasslands and draw conclusions on possible future change. Mean aboveground carbon stock density in the interior of L. sibirica forests was 66 Mg C ha−1, which is in the upper range of values reported from boreal forests and probably due to the comparably long growing season. The density of soil organic carbon (SOC, 108 Mg C ha−1) and total belowground carbon density (149 Mg C ha−1) are at the lower end of the range known from boreal forests, which might be the result of higher soil temperatures and a thinner permafrost layer than in the central and northern boreal forest belt. Land use effects are especially relevant at forest edges, where mean carbon stock density was 188 Mg C ha−1, compared with 215 Mg C ha−1 in the forest interior. Carbon stock density in grasslands was 144 Mg C ha−1. Analysis of satellite imagery of the highly fragmented forest area in the forest-steppe zone showed that Mongolia's total boreal forest area is currently 73 818 km2, and 22% of this area refers to forest edges (defined as the first 30 m from the edge). The total forest carbon pool of Mongolia was estimated at ~ 1.5−1.7 Pg C, a value which is likely to decrease in future with increasing deforestation and fire frequency, and global warming."],["dc.identifier.doi","10.1111/gcb.13127"],["dc.identifier.fs","617128"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/10601"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.eissn","1365-2486"],["dc.relation.issn","1354-1013"],["dc.title","Carbon pool densities and a first estimate of the total carbon pool in the Mongolian forest-steppe"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","623"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Trees"],["dc.bibliographiccitation.lastpage","636"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Chenlemuge, Tselmeg"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2018-07-30T12:29:15Z"],["dc.date.available","2018-07-30T12:29:15Z"],["dc.date.issued","2014"],["dc.description.abstract","Key message Hydraulic conductivity and wood anatomical traits in Larix sibirica are correlated with macroclimate, and growing season precipitation in particular, along a precipitation gradient of 700 mm year −1 . Abstract Empirical (K s) and theoretical (K p) sapwood area-specific hydraulic conductivity, hydraulically weighted (d h ) and simple (d) tracheid diameters as well as tracheid density (TD) in roots, stems, and branches were studied in Larix sibirica trees, the dominant conifer at the southern, drought-affected range limit of the boreal forest in Inner Asia. We compared the hydraulic architecture of L. sibirica in two stands in Mongolia to larch trees grown in Central Europe under moist conditions and related hydraulics to macroclimate (precipitation, temperature) and productivity (basal area increment, BAI). K s, K p, d h, and d correlated positively, and TD negatively with precipitation, temperature, and also BAI. Mean growing season precipitation (MGSP) seemed to affect the hydraulic traits more than temperature. A meta-analysis covering data of 14 conifer species from the northern hemisphere revealed a general relationship between MGSP and hydraulic traits. In contrast to expectation, K p and d h did not show a steady decline from roots through the stem to branches in L. sibirica, but were of similar size or larger in the stem. Our results suggest that considerable plasticity in the hydraulic architecture is an important element of the drought adaptation of L. sibirica. It combines with drought-induced fine root abscission (as reported from earlier work) which may help to protect larger roots and the stem from cavitation."],["dc.identifier.doi","10.1007/s00468-014-1131-x"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15213"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Stem increment and hydraulic architecture of a boreal conifer (Larix sibirica) under contrasting macroclimates"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","488"],["dc.bibliographiccitation.issue","8-9"],["dc.bibliographiccitation.journal","Flora - Morphology, Distribution, Functional Ecology of Plants"],["dc.bibliographiccitation.lastpage","496"],["dc.bibliographiccitation.volume","208"],["dc.contributor.author","Chenlemuge, Tselmeg"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Khishigjargal, Mookhor"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2018-08-10T16:15:15Z"],["dc.date.available","2018-08-10T16:15:15Z"],["dc.date.issued","2013"],["dc.description.abstract","Mongolia's Larix sibirica forests at the southern fringe of the Eurosiberian boreal forest belt are exposed not only to very low winter temperatures, but also to frequent summer droughts. It is not completely known how Siberian larch adapts to these stressors. We examined whether (i) these forests differ in their fine root bio- and necromass from more humid boreal forests further in the North and (ii) inter-annual fluctuations in fine root biomass are related to tree vitality. In two exceptionally dry summers, we found only 4–5 g DM m−2 of fine root biomass (in 0–20 cm depth), which is far less than typical conifer fine root biomass figures from boreal forests (c. 200–400 g m−2) and the lowest forest fine root biomass reported worldwide; in a moist summer, fine root biomass was 20 fold higher. In contrast to fine root biomass, both necromass and non-tree root mass were high in all three years. From the large increase of fine root biomass in the moist summer and the generally high root necromass, we conclude that drought-induced fine root dieback was the likely cause of the very small amount of live root mass in the dry summers. Larch fine roots seem to be more drought-sensitive than shoots, since marked needle loss did not occur under the extreme conditions."],["dc.identifier.doi","10.1016/j.flora.2013.08.002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15256"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Extremely low fine root biomass in Larix sibirica forests at the southern drought limit of the boreal forest"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","28"],["dc.bibliographiccitation.journal","Acta Oecologica"],["dc.bibliographiccitation.lastpage","35"],["dc.bibliographiccitation.volume","63"],["dc.contributor.author","Chenlemuge, Tselmeg"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2018-07-27T14:28:50Z"],["dc.date.available","2018-07-27T14:28:50Z"],["dc.date.issued","2015"],["dc.description.abstract","At its southernmost distribution limit in Inner Asia, the boreal forest disintegrates into forest fragments on moist sites (e.g. north-facing slopes), which are embedded in grasslands. This landscape mosaic is characterized by a much higher forest edge-to-interior ratio than in closed boreal forests. Earlier work in the forest-steppe ecotone of Mongolia has shown that Larix sibirica trees at forest edges grow faster than in the forest interior, as the more xeric environment at the edge promotes self-thinning and edges are preferentially targeted by selective logging and livestock grazing. Lowered stand density reduces competition for water in these semi-arid forests, where productivity is usually limited by summer drought. We studied how branch and coarse root hydraulic architecture and xylem conductivity, fine root biomass and necromass, and fine root morphology of L. sibirica respond to sites differing in water availability. Studying forest edge-interior gradients in two regions of western Mongolia, we found a significant reduction of branch theoretical (Kp) and empirical conductivity (Ks) in the putatively more drought-affected forest interior in the Mongolian Altai (mean precipitation: 120 mm yr−1), while no branch xylem modification occurred in the moister Khangai Mountains (215 mm yr−1). Kp and Ks were several times larger in roots than in branches, but root hydraulics were not influenced by stand density or mean annual precipitation. Very low fine root biomass: necromass ratios at all sites, and in the forest interior in particular, suggest that L. sibirica seeks to maintain a relatively high root conductivity by producing large conduits, which results in high root mortality due to embolism during drought. Our results suggest that L. sibirica is adapted to the semi-arid climate at its southernmost distribution limit by considerable plasticity of the branch hydraulic system and a small but apparently dynamic fine root system."],["dc.identifier.doi","10.1016/j.actao.2014.11.008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15207"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Hydraulic properties and fine root mass of Larix sibirica along forest edge-interior gradients"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]