Lesser Khingan

Lesser Khingan

 

Hsiao-hsing-an-ling, a mountain range in the USSR (Khabarovsk Krai and Amur Oblast, RSFSR) and northeastern China. Length (northeast to southwest), approximately 500 km. The Chinese section of the Lesser Khingan is bounded by the Nun-chiang and Sungari river valleys and the Sungliao and Sanchiang plains; the Soviet section extends east from the gorge of the Amur River (170 km long; valley depth, up to 600 m in places) to the upper reaches of the Tyrma River for a distance of 150 km. The predominant relief is mountainous with flat, often marsh-ridden waterdivides and separate high domes; maximum elevation, 1,150 m (Mount Tuimienshan in China). The range is composed of granites, gneisses, crystalline schists, and basalts. The Viun’-Kholdongi volcanoes, which erupted in the 18th century, are at the west foot. There are deposits of coal, graphite, gold, iron ore, and tin. The mountain forests on the northern slopes are of larch and spruce and birch; in the south, there are broad-leaved forests of oak, maple, linden, and Amur cork tree.

References in periodicals archive ?
Among the plains, Songnen Plain, Sanjiang Plain, and Liao River Plain are included which are demarcated by the Changbai Mountains and the Greater Khingan and Lesser Khingan ranges (Figure 1).
In terms of the geographical pattern, stations with significant positive trends in TNn were observed mainly in the Changbai Mountains, Lesser Khingan Range, Liao River Plain, and some few stations in the Greater Khingan Range (Figure 2(b)).
Several stations located in the Lesser Khingan Range, Songen Plain, and northwest of the Greater Khingan Range had a larger trend (Figure 4(a)).
Spatially, most of the stations with a significant warming trend in minimum temperatures were observed in the Changbai Mountains, Lesser Khingan Range, and few stations in the Greater Khingan Range.
Spatially, most of the stations with a significant warming trend in minimum temperatures were located in the Changbai Mountain, Greater Khingan Range, and Lesser Khingan Range.
The remaining population has become concentrated in the Greater Khingan Mountains and several nature reserves in the Lesser Khingan Mountains.
The area of broad-leaved mixed forest encompasses the Lesser Khingan Mountains, Changbai Mountains and Wanda Mountains dominated by Larix gmelinii, Pinus koraiensis, Quercus mongolica, Tilia amurensis and Betula platyphylla (Cheng and Yan, 2008).
1B), but there was a considerable reduction in southern and eastern areas from the 1980s, especially in the Lesser Khingan Mountains where forest cover was subject to a severe decline from the 1950s.
The situation deteriorated in the 1990s: zero occurrences in the records in the Changbai mountains and Wanda Mountains, and a decline of about 66% in the observation records in the Lesser Khingan Mountains.
Bombers draw Vapor circles over the Lesser Khingan. People die of thirst, Fleeing over the unforgiving Rockies.
The simulation results under the three scenarios suggest that the sensible heat fluxwill increase in the northern part of Great Khingan Mountains and Lesser Khingan Mountains, where a lot of cultivated land will change into urban and built-up land, while it will increase most slightly in Liaohe Plain, Liaodong Peninsula and southern part of Changbai Mountains, where the cultivated land will mainly change into forests or grassland and the decreased albedo will substantially increase the evaporative flux.
By comparison, the sensible heat flux will show an increasing trend on the whole during 2010-2030, the simulation results under the three scenarios suggest that it will increase the most obviously in the northern part of Great Khingan Mountains and Lesser Khingan Mountains, where a lot of cultivated land will change into urban and built-up land, while it will increase most slightly in the regions where the cultivated land will mainly change into forests or grassland.