Fenorhythmes Of Yakut Taiga. The Calendar Of The Nature Of Olekminsk Reserve.
“Natural phenological per iodization of a year is called nature calendar…”\r The role of rivers in nature and man’s life is great. They connect people and cultures, form climate, give life to the thousands of living beings. \r In the tasks of researches there were:\r 1. To determine the peculiarities of seasonal dynamics of alive and inanimate nature of Olekminsk reserve;\r 2. To find out (to reveal) the peculiarities of phenological seasons of the territory of Olekminsk reserve. \r _ To determine of phenoindicators which are separate from phenological seasons \r _ To establish the middle dates of the advance of phenological phenomena \r _ To determine the duration of phenological seasons of a year.\r According to the general nature of plants the territory Olekma-Amga interriver refers to the provincial of pine-needles taiga zone, to Verkhne-Lensky flora area. Predominating part of the plants of the reserve relates to boreal types. The flora of the superior plants of Olekminsk reserve includes 654 types. The fauna of area is presented by 40 types of mammals from 45 living in the south of Yakutia, 187 types of birds, 2 types of amphibians and 2 types of reptiles.\r Besides, phenological researches were conducted on the testing area of school ecological control and during arranging of field ecological schools since 2000 till 2010. \r In all 169 phenological phenomena were analyzed from different phenological seasons of year for the last seven years. The gross amount of analyzed information composed 4000 information units.\r Results and conclusions:\r 1. The peculiarities of the seasonal changes of natural complexes were determined for the first time for south of Yakutia on the example of the territory of Olekminsk reserve. The calendar of the nature of Olekminsk reserve was composed. The analysis of phenological observations allowed establishing the row of phenoindicators, with the help of which we can determine advance of that or either phenological stage, as well as the disposition of current vegetative period can be forecasted. The information maybe used in organizing of the measures of nature protection, struggle with pests and the diseases of useful plants, parasite and tranmissive diseases of man and home cattle.\r 2. Geographic position and climatic peculiarities of territory form the peculiarity of seasonal rhythms of Olekminsk’ reserve’s nature.\r 3. All components of landscape in its seasonal changes tightly are connected with each other with causative-investigation ties having formed the definite complex of characteristic phenomena per the stage of seasonal development. \r 4. The carried out analysis of the primary materials of the Annals of the nature of the reserve and information from the field of ecological schools for seven years since 2001 till 2007 allowed detecting the peculiarities of phenoclimatic seasons of the territory of Olekminsk reserve.\r 5. Phenological and temperature outsets of phenological stages were determined.\r 6. Intervals and average of many years dates which are characteristic for phenological phenomena are determined.\r 7. The calendar of the nature of Olekminsk reserve was made on the basis of the processed information.
The Main Features Of Climate Change On The South-West Of Yakutia In The Last 100 Years
1. Purpose of the research to detect the dynamics of the change of moisture regime on the territories of Olekminsk area for the past 100 years.\r 2. Procedures for analysis we used as materials of observations on the testing areas of school of ecological control of our Center, so and of the meteorological station Jikimda situated on the territories of Olekminsk reserve, as literary sources. Time-series analysis was conducted as to following scheme: for period 1901 -1914, 1949-1958 and for period 1996 -2009.\r 3. Data The changes of the temperature of air and sediments for the period of instrumental observations from 1901 to 2009 were analyzed\r 4. Conclusions Climate is characterized with many parameters coming in radiation, the heat and aqueous balances of territory. The most simple and widely measured parameters are the temperature of air and the quantity of atmospheric condensation. Carried out researches and the analysis of received results let us make tentative conclusions:\r 1. Average amount of precipitation increased on 41% (with 229 mm during the period 1901-1914 till 390 mm for period 1998 - 2006)\r 2. The decrease of firm precipitation in cold period and increasing of fluid precipitation in warm period are noticed for 100 years.\r 3. The gross amount of days with precipitation grows from 135 days (period 1901 - 1914) till 160 days (for period 1996 - 2006). For period 1901 -1914 a month with the greatest quantity of days with precipitation is January. The middle quantity of days with precipitation in it composes 16 days. A month with the least quantity of days with precipitation is July. The middle quantity of days with precipitation in it composes 8 days for period 1996 -2006. We should note that though increasing of the quantity of days with precipitation is on the cold period of year, increasing of the value of precipitation arises at expense of warm months. This reflects well the annual motion of the force of precipitation as to studied periods, the force of precipitation grows, in the first case achieving maximum in August, into second - in July. The maximal significances of the force of the precipitation of second period exceed of such the first period almost in two times.\r 4. The disposition of meteorological phenomena shows the change of climate to moistness. There are more days with fog, snow-storm, the quantity of days with precipitation increases from more 1mm, so more and 5 mm and it’s noticed that the quantity of days at a speed of wind more 10 and 15m/sec increases.\r 5. The change of the precipitation amount, especially in warm period affects the level and the expense of water in the Lena River. Analyzing as to decades the statistics on stratum of flow as to stratum flow since 1930 till 2006 can be noted tendency increasing of stratum flow from 132.8 mm in 1930 till 289 mm in 2006. The significance of the annualized expense of water with 6370 in 1999 till 8710 m/sec in 2006 enlarge, the annualized level of water changes from 282 till 376 cm. It is according. The area of the movement of the significances of the indicators changes to their increasing in the course of the year for the last 10 years. Averaging their significance exceed the norm of 18%.\r In conclusion we want to note that global change of climate actually touches all of us and already has significant influence on natural environment and the life of people. In simple words warming - the increase of temperature - for the many areas of our north country might become a favorable change of the conditions of life. But the trouble is that the change of climate is much more complex process, and one of its main manifestations is the augmentation of the instability of climatic conditions, changes of flora and fauna, increasing of infectious diseases. This influences badly on natural ecosystems and complicates the life of people. Besides, too quick warming does not let natural ecosystems adapt themselves, and they can be destroyed. And at least now we shouldn’t wait doing nothing, it is necessary to take all efforts to try to reduce climate change effect.
Pleistocene mammals of a river basin of Adycha
The paper represents the results of study of remains of mammalians which inhabited the Adycha-River basin (Verkhoyansky Region) during the Pleistocene Epoch. All studied materials belong to the Museum of Paleontology and Ethnography of the Adychinskaya Secondary School. For a long time, People have been finding ancient animal bones on the Adycha-River banks, and since 1955, the teacher, Bozhedonov Nikolai Gerasimovich, has been organizing exploring local lore expeditions for school children purposed for mammoth fauna investigation and material collection for the school museum. In this research collected material was classified, measurements of the Pleistocene Period animal bones were made. On the basis of it we came to conclusion that during the Pleistocene Epoch, very rare species of animals inhabited the Adycha-River basin. To our opinion, the Adycha-River basin is a unique site for research activity. Comparative measurements of the Pleistocene Periods animal bones were made. Of flu work we know measurements of the Early and Middle Pleistocene Period elephant’s bones which inhabited the Adycha-River basin. Elephants inhabited with mammoth. To our opinion, they didn’t yield to size to mammoth. In that time the Adycha-River basin, was been inhabited by camelopard, bison and Soergelia.\r Museum has 2 skull’s fragments and ovibos fronts part of horny stream. Geological age which is Early Pleistocene or late Pleistocene. These bones concern to Praeovibos. Distance between horns is more 100 mm. If we compare with ovibos skull of the Late Pleistocene we see that distance between horns is longer for the 10 time. We couldn’t found such comparisons at scientist’s works. It results that the more distance between horns is longer the more ancient, and skull’s sizes are much less.\r 7-8 km lower of Betenkes, in disclosing “?????? ???????” and sand bank “??????”, was been founded 3 crag’s part of skull of Soergelia, metacarpal bone and 2 skull’s fragments with horns part. On the Adycha-River basin was bun founded above all quantity of soergelias remains.\r In the Pleistocene Period inhabited a lot of horses. Which remains he have now. Our horse’s height in crest is from 142 to 156 sm. And what about of horses of the Early Pleistocene, it is more than 230 sm.\r Molar teeth of the Early Pleistocene Epoch horse are more for the 2.5 times than of contemporaneous analog.