Sauer, Daniela

[["dc.bibliographiccitation.journal","Earth Surface Processes and Landforms"],["dc.contributor.author","Klinge, Michael"],["dc.contributor.author","Schneider, Florian"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Arndt, Kim"],["dc.contributor.author","Bayarsaikhan, Uudus"],["dc.contributor.author","Sauer, Daniela"],["dc.date.accessioned","2021-06-01T09:41:48Z"],["dc.date.available","2021-06-01T09:41:48Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1002/esp.5116"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85043"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","1096-9837"],["dc.relation.issn","0197-9337"],["dc.title","Interrelations between relief, vegetation, disturbances, and permafrost in the forest‐steppe of central Mongolia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","55"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Forest Ecosystems"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Klinge, Michael"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Schneider, Florian"],["dc.contributor.author","Erasmi, Stefan"],["dc.contributor.author","Bayarsaikhan, Uudus"],["dc.contributor.author","Sauer, Daniela"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2021-09-01T06:38:24Z"],["dc.date.accessioned","2022-06-29T13:24:59Z"],["dc.date.accessioned","2022-08-18T12:38:34Z"],["dc.date.available","2021-09-01T06:38:24Z"],["dc.date.available","2022-06-29T13:24:59Z"],["dc.date.available","2022-08-18T12:38:34Z"],["dc.date.issued","2021-08-10"],["dc.date.updated","2022-07-29T12:18:50Z"],["dc.description.abstract","Abstract\r\n \r\n Background\r\n Forest distribution in the forest-steppe of Mongolia depends on relief, permafrost, and climate, and is highly sensitive to climate change and anthropogenic disturbance. Forest fires and logging decreased the forest area in the forest-steppe of Mongolia. The intention of this study was to identify the geoecological parameters that control forest distribution and living-tree biomass in this semi-arid environment. Based on these parameters, we aimed to delineate the area that forest might potentially occupy and to analyse the spatial patterns of actual and potential tree biomass.\r\n \r\n \r\n Methods\r\n We used a combination of various geographic methods in conjunction with statistical analyses to identify the key parameters controlling forest distribution. In several field campaigns, we mapped tree biomass and ecological parameters in a study area within the Tarvagatai Nuruu National Park (central Mongolia). Forest areas, topographic parameters and vegetation indices were obtained from remote sensing data. Significant correlations between forest distribution and living-tree biomass on one hand, and topographic parameters, climate data, and environmental conditions on the other hand, were used to delineate the area of potential forest distribution and to estimate total living-tree biomass for this area.\r\n \r\n \r\n Results\r\n Presence of forest on slopes was controlled by the factors elevation, aspect, slope, mean annual precipitation, and mean growing-season temperature. Combining these factors allowed for estimation of potential forest area but was less suitable for tree-biomass delineation. No significant differences in mean living-tree biomass existed between sites exposed to different local conditions with respect to forest fire, exploitation, and soil properties. Tree biomass was reduced at forest edges (defined as 30 m wide belt), in small fragmented and in large forest stands. Tree biomass in the study area was 20 × 109 g (1,086 km2 forest area), whereas the potential tree biomass would reach up to 65 × 109 g (> 3168 km2).\r\n \r\n \r\n Conclusions\r\n The obtained projection suggests that the potential forest area and tree biomass under the present climatic and geoecological conditions is three times that of the present forest area and biomass. Forest fires, which mostly affected large forest stands in the upper mountains, destroyed 43% of the forest area and 45% of the living-tree biomass in the study area over the period 1986–2017."],["dc.identifier.citation","Forest Ecosystems. 2021 Aug 10;8(1):55"],["dc.identifier.doi","10.1186/s40663-021-00333-9"],["dc.identifier.pii","333"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/88925"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/111871"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112963"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.publisher","Springer Singapore"],["dc.relation.eissn","2197-5620"],["dc.rights.holder","The Author(s)"],["dc.subject","Biomass"],["dc.subject","Fire"],["dc.subject","Forest-steppe"],["dc.subject","Geoecological factors"],["dc.subject","Mongolia"],["dc.subject","Permafrost"],["dc.title","Geoecological parameters indicate discrepancies between potential and actual forest area in the forest-steppe of Central Mongolia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Klinge, Michael"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Schneider, Florian Dirk"],["dc.contributor.author","Erasmi, Stefan"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Bayarsaikhan, Uudus"],["dc.contributor.author","Sauer, Daniela"],["dc.date.accessioned","2020-05-12T08:31:04Z"],["dc.date.available","2020-05-12T08:31:04Z"],["dc.date.issued","2020"],["dc.description.abstract","he Mongolian forest-steppe is highly sensitive to climate change and environmental impact. The intention of this study was to identify, which geoecological parameters control forest distribution and tree growth in this semi-arid environment, and to evaluate the actual and potential tree biomass. For this purpose, we applied a combination of tree biomass and soil mapping, remote sensing and climate data analysis to a study area in the northern Khangai Mountains, central Mongolia. Forests of different landscape units and site conditions generally showed minor differences in tree biomass. We found no significant correlation between tree biomass and NDVI (normalized differentiated vegetation index). Tree biomass was reduced at forest edges, in small fragmented forest stands of the steppe-dominated area, and in large forest stands, compared to all other forest units. The tree biomass of forests on slopes ranged between 25 and 380 Mg ha−1. The mean tree biomass in forests of 10–500 ha was 199–220 Mg ha−1, whereby tree biomass at the forest edges was 50–63 Mg ha−1 less than in the interior parts of the forests. The mean tree biomass of forests > 500 ha was 182 Mg ha−1, whereas that of forests < 10 ha in the steppe-dominated area was only around 142 Mg ha−1. Forests in alluvial plains had maximum tree biomasses of 440–688 Mg ha−1. In contrast to tree biomass, the spatial extension of forests showed distinct relationships with topographic and climatic parameters. Presence of forest was controlled by elevation (< 2600 m a.s.l.), aspect (no southern slopes below 2100 m a.s.l.), slope (< 25°), mean annual precipitation (160–340 mm) and mean growing season temperature (6.5–10.8 °C). The actual forests of the study area covered 1,086 km2. In 1986, prior to extensive forest fires, it was 1,898 km2. The actual tree biomass of 20 × 109 g represented 57 % of that in 1986. Modelling of the potential forest area resulted in 3,552 km2, with 65 × 109 g tree biomass (based on topographic parameters) and 3,113 km2 with 58 × 109 g tree biomass (based on climatic parameters), respectively. The modelled potential forest area was thus about three times the actual forest area."],["dc.identifier.doi","10.5194/bg-2020-13"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65131"],["dc.language.iso","en"],["dc.title","Modelled potential forest area in the forest-steppe of central Mongolia is about three times of actual forest area"],["dc.type","preprint"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]