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GEO

Publications 2005

Department of Forest Biodiversity, Planning and Expertise

Tsereteli G., Vachnadze G. - Bedding for dark coniferous forests of Georgia. "News of Agrarian Science", volume 3, N 3 (in Russian)

Summary

In mountainous dark coniferous forests certain substitution of bedding types is revealed, which is connected with contents of stands and with a high level of forest growing. Ash contents of main types of spruce and silver fir formation bedding has been investigated.

Tiginashvili Z., Svanidze M. - Regulation of process of species substitution in coppices where pine and spruce prevail. State Agrarian University, "Problems of Agrarian Science", volume 31.

Summary

Results of studying of natural renewal of forest and species substitution under the cover in the plots, where pine and spruce prevail and the openings (windows) of different diameter are discussed in the article. It is determined that substitution of pine by spruce in the resort forests is undesirable. Recommendations on stoppage and regulation of this process are given.

Tiginashvili G. - The character of growing of the Caucasian pine in height and peculiarities of its coppice formation. State Agrarian University, "Problems of Agrarian Science", volume 31.

Summary

Peculiarities of growing of Caucasian pine coppices spread in Mariamdjvari forest reserve in height according to thickness stages, age and number of trees are discussed in the article. Distribution of number of trees and stock is given, taking into account stages of height and thickness. It is determined that increase in height of pine is proportional to increase of thickness stages, age and stock, and inversely proportional to number of trees.

Tiginashvili Z. - Vertical construction of the Caucasian pine in Mariamdjvari state forest reserve. State Agrarian University, "Problems of Agrarian Science", volume 31.

Summary

Vertical construction (layering) of the Caucasian pine in Mariamdjvari reserve is given in the article, due to which we conclude that pine forest in Mariamdjvari reserve is characterized by coppices of all-aged complicated construction, where some generations of all-aged trees are presented and layers are allotted, which is dependent on ecological conditions, among them on soil factors.

Tiginashvili Z. - Natural renewal of the Caucasian pine in state Mariamdjvari reserve. State Agrarian University, "Problems of Agrarian Science", volume 33.

Summary

Results of studying of natural renewal of the Caucasian pine under the cover of dry eco-type pine are discussed in the article. The course of growing of juvenile pine in the opening of different diameters is analyzed. In the result of research it was defined, that renewal of pine under the cover proceeds very slowly but quite enough for the origin and development of all-aged pine forests. Natural renewal of pine in openings proceeds quite well or satisfactorily. In the result of studying of juvenile pine growing process it is defined that at the every gradation of age with the increase of diameter of opening the middle height of a juvenile tree increases.

Amanatashvili L. - Present day situation of natural renewal in East Georgian oak groves. V. Gulisashvili Mountain Forestry Institute Works, volume 40.

Summary

Georgian oak (Uercus Iberica Stev.) is the most widely spread species among other oaks in Georgia. In East Georgia its belt ranges between 600-1200 meters above the sea level. Bad renewal and focal drying up is caused by decreasing of biological activity of sprouts of several generations.

Svanidze M. - Ecological principles of defining types of beech forests of Georgia. "News of Agrarian Science", volume 3. (in Russian)

Summary

Bio-ecological and age stages of development and subsequent changes in time of beech forest types because of the anthropogenic influence and natural calamities are discussed in the article. For the definition of beech types classification of indicator plants is suggested, which are diagnostic indicators of conditions of sprouting places. Method of defining mountain types of beech forest in different ecological condition is given. Some recommendations are given on increasing productivity and protective functions of beech forests in Georgia.

- On the influence of change of light regime upon oak (Uercus Iberica Stev.), cambium activity and anatomical structure of wood. TSU Kakheti Branch Scientific Works Collection, volume VI

Lobdjanidze E. - Biodiversity of juniper species in East Georgia and its bio-ecological peculiarities. TSU Kakheti Branch Scientific Works Collection, volume VI.

Summary

Among eight species of juniper kept in Vashlovani state reserve black juniper attracts attention. It was brought into the "Red Books" of the former Soviet Union (1978) and Georgia. This endemic and relic species of Caucasian dendroflora has got a great importance for the studying of the oldest Caucasian xerophitic flora. Authors figures on three species of juniper (I. foetidissima, I. depressa, I. rufercens), anatomical structure and physical-mechanical properties of its wood and their usage for special purpose both in the Caucasus and other countries of world are given in work.

Lobzhanidze E. - The effect of Environmental pollution on the anatomical structure of naked-seed plants needles. TSU Kakheti Branch Scientific Works Collection, volume VI - Sighnagi. (in English)

Lobzhanidze E. - The effect of Environmental pollution on Cambial Activity and Wood Formation of Ring-Porons Woody Trees Annals of Agrarian Science, volume 3, N 3. (in English)

Lobzhanidze E. - Caucasian Junipers and its Aromatic Wood World of Wood Journal 2005 U.S.A. Volume 3, N 3.

Gotsiridze E.R. - Inter-space-time energy of forest. "Gulani", Tbilisi (monograph).

Summary

Envisaging the processes taking place in the forest and changes of Carbon dioxide, movement of air in forest and around it, properties of soil, natural renewal of forest in openings and so on, the energy of forest inter-space-time is worked out, which is formed in the space from tree roots up to its top.

Berozashvili T., Matiashvili G. - Influence of global factors upon woody plants conditions (pines). Publishing House "Zekari", Tbilisi.

Summary

Effects of global factors on woody plants, namely on pine conditions, are discussed in this work. Based on research, present day conditions require scientifically confirmed corrections in the forest culture systems in Tbilisi neighborhood.

Vachnadze G. - Substitution of pine by deciduous species in Borjomi resort forests. "Problems of Agrarian Science", volume 30.

Summary

On the example of Borjomi forestry the processes of species substitution in forest are discussed. Namely, substitution of pine by the species of less-importance from the viewpoint of health-resort - spruce, beech, hornbeam and other deciduous species. Peculiarities of proceeding of this process are analyzed in the relationship with contents, frequency and exposition of coppice. It has been determined that natural cycle of species substitution proceeding here is mainly at the stage of ending and no natural factors are able to reverse this autogenic process in favor of pine.

Tvauri L.- Natural renewal of common yew (Taxus Baccata) and the ways of increasing of its area in conditions of West Georgia. "News of Agrarian Science", volume 3, N 4. (in Russian)

Summary

The analysis concerning natural (seeded) renewal of valuable, rare and disappearing plant species - common yew in the forests of West Georgia is given in the article. Ways of increasing its area and formation of its plantation is suggested.

Djaparidze T., Dsotsenidze N. - Effects of environment on formation of reserve substances in Caucasian fir (abies). "News of Agrarian Science", N 4. (in Russian)

Summary

Maximal quantity of fats and sugars in juvenile fir (abies) in the high-mountainous belt is observed from November up to March, in the middle belt - in February. At this time minimal decrease of starch or its full disappearance is observed. In the low belt with widely distributed species of silver-tree in winter time sugars and fats are converted only in a small part of starch. In this case entire disappearance of starch isnt observed. (???)

Djaparidze T., Dsotsenidze N. - Question concerning more accurate specification of east border of Caucasian fir (abies) and Western spruce and their biological properties. "News of Agrarian Science", N 4, volume 3. (in Russian)

Summary

Present eastern borders of spruce and fir (abies) reach Tbilisi meridian, but according to paleobotanical excavations fossils of spruce and fir (abies) are found more eastward in the steppes of Shiraki and in Apsheron tertiary sedimentary strata, which shows that area of spruce and fir (abies) was more wider than today.

Department of forest rehabilitation and melioration

Chagelishvili R. - Evaluation of present state of sub-alpine forests and dynamic of upper belt in Georgian mountains. "Problems of Agrarian Science", Collection of Scientific Works. Tbilisi.

Summary

Two principle gradations are allotted by some individual forestry areas of sub-alpine forests: first - upper level 2001-2250 m, second - 2250 m and above. It became possible to delimitate areas of sub-alpine forests from dense high trunk coppices, mainly based on the documents of forest arrangement, 2000 m above sea level and higher in all parts of Georgia and in the boundaries of forestries (by district and administrative regions).

Chagelishvili R. (co-author Dvalishvili O.) - Effect of different types of cuttings on water-regulatory functions of mountainous forests in Georgia. "News of Agrarian Science", volume 3, N 2. (in Russian)

Summary

Effect of different types of cutting on water-regulatory functions of mountainous forests is considered in the article. On the grounds of many years stationary investigations the effect of various types of cuttings on changes of principle functions of soil properties, redistribution of atmospheric precipitation on the surface of soil, the character of formation of surface liquid and hard drainages subject to intensity of amount of precipitation and daily maximum, on water-regulatory functions of mountainous forests is revealed.

Kharaishvili G. - Effect of protective forest zones on the agricultural crop-capacity in Georgia. "Moambe of Agrarian Science", volume 3, N 3, Tbilisi.

Summary

The effect of protective forest zones on main agricultural crop-capacity by natural-climate regions is considered in the article.

Dvalishvili O. (co-author Chagelishvili R.) - Effect of different types of cuttings on water-regulatory functions of mountainous forests of Georgia. "Problems of Agrarian Science", volume 3, N 2.

Summary

Dvalishvili O. - Influence of mechanized preparation on water-regulatory, water-keeping properties of mountainous dark coniferous forests. "Problems of Agrarian Science", Collection of Scientific Works, volume XXX, Tbilisi.

Summary

In dark coniferous forests of Mestia forestry mechanized influence of forest on basic physical properties of soil, as well as on alterations of water-regulatory and water-keeping properties has been studied. Some recommendations are given to forestry concerning improvement of water-regulatory and water-protective functions and basic physical properties of West Georgian dark coniferous forest soils.

Department of forest protection

Supatashvili A., Tavadze B. - Present state of eastern spruce pests in Georgia. The Black Sea Technical University Forest Department, book I of materials of international symposium, Turkey, Trabzon.

Summary

Spread of eastern spruce (Picea Orientalis L) in Georgia by heights (above sea level) and regions is presented.

Earlier state of pests spread on spruce stands and measures carried out against them are viewed. Species of main pests spread in spruce stands during the last period are also studied, as well as some of their biological moments which will be envisaged in the integrated system of protection of forest from pests.