. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. still lower. As far south as Uliassutai there has been recorded the low temperature of -^ 47,5° C. The weather is mostly rather calm, the prevalent northerly and north- westerly winds being considerably softened down on the south side of the Sayansk mountains. The Ulu-kem becomes free from ice in the middle of April, and is not frozen up till the end of October. These tracts correspond, if anything, to Warming's rock-steppes, and have only a very poor and monotonous flora. There are only a few species wh
. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. still lower. As far south as Uliassutai there has been recorded the low temperature of -^ 47,5° C. The weather is mostly rather calm, the prevalent northerly and north- westerly winds being considerably softened down on the south side of the Sayansk mountains. The Ulu-kem becomes free from ice in the middle of April, and is not frozen up till the end of October. These tracts correspond, if anything, to Warming's rock-steppes, and have only a very poor and monotonous flora. There are only a few species which are able to find reasonable terms in these extremely dry and hot localities. The rocky ground. Fig. 67. From the Soyote Steppe on the Ulu-kem. A sacred «ova» belonging to the natives, built chiefly of Salix, Populus, and Caragana. frequentiy lies bare, and the shallow, sandy earth occurring here, is dry as tinder and very poor in organic matter. The sun bakes all day from the cloudless sky, and several weeks, perhaps even months may pass without any rain falling. On the other hand, there is a rich dew-fall at night, which is no doubt of great consequence for the plant life in these regions. On account of the far advanced season when I visited these regions, at the end of August, the steppe was mostly dry and scorched, the summer heat having almost entirely destroyed the vegetation, and only few plants were left at this time. As our journey for various reasons had to be be forced through these tracts, my floristic 96. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Printz, Henrik, 1888-. [Trondhjem] K. Norske Videnskabers Selskab
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
