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O6
F 54

    Management of bushland vegetation using rainwater harvesting in Eastern Kenya
[Текст] : монография / V. Kaarakka ; The Finnish Society of Forest Science, The Finnish Forest Research Institute. - Helsinki : [б. и.], 1996. - 93 с. : ил. - (Acta Forestalia Fennica, ISSN 0001-5636 ; 253). - Библиогр.: с. 78-98. - ISBN 951-40-1539-8 : 5000.00 р.
УДК

Кл.слова (ненормированные):
Drylands -- land rehabilitation -- rainwater harvesting

Аннотация: Microcatchment water harvesting (MCWH) improved the survival and growth of planted trees on heavy soils in Eastern Kenya five to six years after planting. In the best method, the cross-tied furrow microcatchments, the main annual increments (MAI; based on the average biomass of living trees multiplied by tree density and survival) of the total and usable biomass in PROSOPIS JULIFLORA were 2787 and 1610 kg ha-1 a-1 respectively, when the initial tree density was 500 to 1667 trees per hegtare. Based on survival, the idigenous ACACIA HORRIDA, A. MELLIFERA and A. ZANZIBARICA were the most suitable species for planting using MCWH. When both survival and yield were considered, a local seed source of the introduced P.JULIFLORA was superior to all other species. The MAI in MCWH was at the best distinctly higher than that in natural vegetation (163-307 and 66-111 kg ha-1 a-1 for total and usable biomass respectively); this cannot satisfy the fuelwood demand of concentrated populations, such as towns or irrigation schemes. The density of seeds of woody species in the topsoil was 40.1 seeds m-2 in the ACACIA- COMMIPHORA bushland and 12.6 seeds m-2 in the zone between the bushland and the Tana riverine forest. Rehabilitation of woody vegetation using the soil seed bank alone proved difficult due to the lack of seeds of desirable species. The regeneration and dynamics of woody vegetation were also studied both in cleared and undisturbed bushland. A sub-type of ACACIA-COMMIPHORA bushland was identified as ACACIA REFICIENS bushland, in which the dominant COMMIPHORA species is C.CAMPESTRIS. Most of the woody species did not have even-aged populations but cohort structures that were skewed towards young individuals. The woody vegetation and the status of soil nutrients were estimated to recover in 15-20 years on Vertic Natrargid soils after total removal of above-ground vegetation

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634.9
T 27

    Forest fertilisation in Britain
[Текст] / C.M.A. Taylor ; Forestry Commission. - London : HMSO, 1991. - 45 с. : plates + tables. - (Forestry commission ; 95). - ISBN 0-11-710294-6 : Б. ц.
УДК

Кл.слова (ненормированные):
nutrients -- forestry

Аннотация: In Britain the use of forest fertilisers has greatly increased the productivity of forests growing on nutrient-poor soils. In fact, many sites could not otherwise have been successfully afforested. The Forestry Commission has continually tested rates and types of fertiliser and methods of application. The principle fertilisers are listed, together with the appropriate rate, season and method of application.

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631.4
M 61

    Methods in soil biology
[Текст] : монография / Ed. by F.Schinner a.o. - Berlin ; Heidelberg ; New York : Springer, 1996. - 426 с. : figures. - Библиогр: at the end of the chapters%ISBN 3-540-59055-2. - 157-50 р.
УДК

Аннотация: In terrestrial ecosystems, soil microorganisms and soil animals are essential for litter degradation, soil formation and availability of nutrients and trace elements. The measurement of biological soil parameters allows a rapid evaluation of the effects of chemical and physical influences due to pollutants or soil management. This book introduces a number of well proved methods for the analysis of carbon, nitrogen, phosphorus and sulfur cycles. It focuses further on the determination of the number and biomass of microorganisms, algae and animals in the soil. Particular emphasis is placed on the comprehensible and complete description of the experimental procedures.

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634.9
P 93

    The productivity and sustainability of Southern forest ecosystems in a changing environment
[Текст] : сборник научных трудов / Ed. by R.A.Mickler and S.Fox. - New York ; Berlin ; Heidelberg a.o. : Springer, 1998. - 892 с. : ill. + tables. - (Ecological Studies, ISSN 0070-8356 ; 128). - Библиогр: at the end of the articles%ISBN 0-387-94851-1. - 3848.00 р.
УДК

Кл.слова (ненормированные):
climate change%pollutants%forest soils%global change%socioeconomic impacts

Аннотация: The forest ecosystems of the southern United States are the region's predominant and use and comprise vital resources of economic and biological significance. These forests, covering 85 million hectares, or 40% of the land area, are subject to numerous physical and chemical strssors. Temperature, precipitation, and soil nutrients are three factors that currently limit forest ecosystem health and productivity in the region. In a changing global environment, these forest ecosystems face an unprecedented rate of change and will be directly and indirectly affected by additional stresses from air pollutants and climate change, including increasing concentrations of carbon dioxide, methane, other trace gases and atmospheric aerosols, and altered land use patterns.

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06
S 92

    Optimum nutrition and nitrogen saturation in Scots pine stands
[Текст] / Authors: C.O.Tamm a.o. - Uppsala : Swedish University of Agricultural Sciences, Faculty of Forestry, 1999. - 129 с. : figures + tables. - (Studia Forestalia Suecica, ISSN 0039-3150 ; 206). - Библиогр: p. 116-126. - ISBN 91-576-5958-3 : 34.00 р.
УДК

Кл.слова (ненормированные):
exchange capacity%foliar sampling%litterfall%depletion%recovery

Аннотация: Long-term field experiments are described, in which nitrogen and other plant nutrients were added regularly to young Scots pine stands at two sites in Sweden, Lisselbo (1969-1988) and Norrliden (1971-1989; some treatments still in progress). A main aim was to establish a range of needle nitrogen concentration levels, as stable as possible, and to study the effects of these and of other factors (other added nutrients, soil acidity changes, irrigation) in tree growth and tree nutrient status. The importance of long-term field experiments in the study of urgent environmental problems, such as nitrogen saturation and soil acidification, is discussed.

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632
S 36

    Zur Kausalanalyse der Disposition von Nadelbaumen fur den Befall durch nadelfressende Insekten am Beispiel Picea abies (L.) Karst. und Gilpinia hercyniae Htg. (Hym., Diprionidae)
[Текст] : монография / R. Schopf ; Universitat Gottingen. - Frankfurt am Main : J.D. Sauerlander's Verlag, 1986. - 185 с. : Abb. + Tab. - (Schriften aus der Forstlichen Fakultat der Universitat Gottingen und der Niedersachsischen Forstlichen Versuchsanstalt, ISSN 0344-5666 ; 87). - Библиогр: S.156-176%ISBN 3-7939-5087-5. - 8-00 р.
УДК

Кл.слова (ненормированные):
Material und Methoden%Darmproteasen%Biochemisch-physiologische Grundlagen

Аннотация: The book deals with the basis of biochemical needle analysis the predisposition of Norway spruce to the attack by a needle eating insect is quantified. The physiological bond between the sawfly and spruce is divided in three different experimental levels: (1) Synthesis of insect biomass by plant born nutrients. (2) Physiological potency of the plant to inhibit the insect metabolism by allelochemicals. (3) Physiological potency of the insect to break the plant defense.

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06
S 92

    Effects of clearing, slash removal and prescribed burning on amounts of plant nutrients in biomass and soil
[Текст] / N. Nykvist. - Uppsala : Swedish University of Agricultural Sciences Faculty of Forestry, 2000. - 43 с. : fig. + tables. - (Studia Forestalia Suecica, ISSN 0039-3150 ; 210). - Библиогр: p. 40-43%ISBN 91-576-5983-4. - 13.00 р.
УДК

Кл.слова (ненормированные):
litter decomposition%carbon turnover%plantations

Аннотация: Total amounts of plant nutrients in biomass, humus and mineral soil were determined in two old Norway spruce ecosystems in central and northern Sweden. Measurements were repeated 1, 4, 10 and 16 years after clearfelling on plots on which slash was retained, removed or burnt. Different analytical methods for plant-available nutrients were used and the relationship between them was calculated.

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58
E54

Encyclopedia of Plant Physiology. New Series   Vol. 11 : Hormonal regulation of development III: Role of environmental factors
[Text] / Eds.: A. Pirson, M.H. Zimmermann. / Ed. by R.P. Pharis and D.M. Reid. - Berlin ; Heidelberg ; New York et al : Springer-Verlag, 1985. - 887 p. : рис., табл. - eng. - Библиогр. в конце разд. - ISBN 3-540-10197-7 : 60.00 р.
УДК

Кл.слова (ненормированные):
mineral nutrients -- polarity -- growth development effects

Аннотация: The volume deals with the "interrelations of plant hormones with factors in the evironment of the plant, and its organs and tissues"

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06
S92

    Physiology of fungi attacking birch and aspen pulpwood
[Text] = Fysiologi hos svampar som angriper bjrk- och aspmassaved : научное издание / B. Hanningsson. - Stockholm : Skoghogskolan, 1967. - 55 p. : табл., рис. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 52). - eng. - Библиогр.: с. 51-54. - 1.38 р.
УДК

Кл.слова (ненормированные):
materials and methods -- carbon nutrition -- nitrogen nutrition -- pH and growth -- moisture -- decay resistance

Аннотация: Special interests has been devoted to the carbon and nitrogen nutrition, since these two nutrients must be of extreme importance for the development of decay. The influence of other factors of major imprtance for decay, as, for instance, temperature and moisture content of the wood, have also been studied. The chemical decomposition of the wood and the interactions between the different microbes have also been investigated

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06
S92

    Influence of CO2, moisture and nutrients on the formation of Lammas growth and prolepsis in seedlings of Pinus silvestris L.
[Text] = Inverkan av CO2, vatten och naring pa bildningen av sommarskott hos plantor av Pinus silvestris L. : научное издание / T. Alden. - Stockholm : Skogshogskolan, 1971. - 21 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; №93). - eng. - Библиогр.: с. 19-20. - 0.20 р.
УДК

Кл.слова (ненормированные):
environmental factors

Аннотация: Results are presented from a study concerning the influence of environmental factors on the formation of summer shoots in young plants of Pinus silvestris L. grown in plastic green houses. A close relationship is found between the studied factors: CO2, water, nutrients and the occurrence of summer shoots. Poor environmental conditions during the first year followed by improved conditions in the following year resulted a great number of plants with summer shoots, whereas favourable conditions during the first year resulted in a low number of plants with summer shoots the following year. According to these results the conclusion is drawn that environmental conditions and especially those of the preceding year have a great influence on the formation of summer shoots and on the shoot growth as well.

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06
S92

    Studies of root competition in a poor pine forest by supply of labelled nitrogen and phosphorus
[Text] : научное издание / E. Bjorkman, G. Lundeberg. - Stockholm : Skogshogskolan, 1971. - 16 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 94). - eng. - Библиогр.: с. 16. - 0.60 р.
УДК

Кл.слова (ненормированные):
root competition -- fertilizers

Аннотация: The phenomenon known as root competition in lichen pine forests has been studied by means of applying ammonium sulphate and potassium phosphate labelled with N15 an P32 respectively to a plot with a seed tree in the centre. Under the tree there was a typical competition zone. Both Calluna vulgaris and Vaccinium vitis idaea proved to be at least as efficient absorbers of nutrients as the pine plants in the natural regeneration under the seed tree. In the vegetation immediately outside the fertilized area only traces of the added nutrients could be found


Доп.точки доступа:
Lundeberg, G.
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06
S92

    The effect of inorganic nutrients on water economy and hardiness of conifers. I. The effect of varying potassium, calcium, and magnesium levels on water content, transpiration rate, and the initial phase of development of frost hardiness of Pinus silvestris L. seedlings
[Text] = Samband mellan mineralamnesinnehall, vattenhushallning och hardighet hos barrtrad. I. Effekter av varierande kalium- och magnesium- nivaer pa vatteninnehall, transpirationshastighet och frosthardighetens initialfas hos tallplantor : научное издание / L. Christersson . - Stockholm : Skogshogskolan, 1973. - 26 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 103). - eng. - Библиогр.: с. 25-26. - ISBN 91-38-01559-5 : 0.60 р.
УДК

Кл.слова (ненормированные):
transpiration rates -- hardiness -- water content

Аннотация: The aim of the presnt work has been to find out whether or not it is possible to influence the water ceonomy and the development of frost hardiness of pine seedlings by fertilization with varying amounts of potassium, calcium, and magnesium and whether this can be done while maintaining a maximum or almost maximum growth rate. Simple and rapid methods have been used to allow rapid testing of the three ions in concentrations in shoots and in roots that are associated with rapid growth. There were no experiments with slow-growing seedlings suffering from severe deficiency

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06
S92

    The effect of inorganic nutrients on water economy and hardiness of conifers. II. The effect of varying potassium and calcium contents on water status and drought hardiness of pot-grown Pinus silvestris L. and Picea abies (L.) Karst. seedlings
[Text] = Samband mellan mineralamnesinnehall, vattenhushallning och hardighet hos barrtrad : научное издание / L. Christersson. - Stockholm : Skogshogskolan, 1976. - 23 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 136). - eng. - Библиогр.: с. 22-23. - ISBN 91-38-03211-2 : 1.00 р.
УДК

Кл.слова (ненормированные):
terminology -- methods

Аннотация: The effect of varying amounts of potassium and calcium on drought hardiness, transpiration rates, and water status of pot-grown seedlings of Pinus silvestris and Picea abies, 5 months old, was investigated. The positive correlation between potassium content of pine seedlings and survival at low water potentials could not be explained by low transpiration rate or early stomatal closure as the water potential decreased. It was assumed that the potassium contents influenced the desiccation of the cytoplasm, though the colloidal properties or the metabolism of carbohydrates and proteins.

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06
S92

    Frost hardiness in Scots pine (Pinus silvestris L.) II. Hardiness during winter and spring in young trees of different mineral nutrient status
[Text] = Frosthardighet hos tall (Pinus silvestris L.) ii. Hardighet under vinter och var hos ungra trad med olika mineralnaringsinnehall : научное издание / A. Aronsson. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1980. - 27 p. : рис. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 155). - eng. - Библиогр.: с. 26-27. - ISBN 91-38-05588-0 : 1.20 р.
УДК

Кл.слова (ненормированные):
needles -- freezing treatment -- heavy damage

Аннотация: The aim of the present work was to investigate the effect of mineral nutrition on frost hardiness. Frost hardiness in Scots pine with different concentrations of mineral nutrients in the needles was determined during winter by different freezing treatments. For the determinations, needles from a fertiliser experiment in central Sweden were used. The main effect of fertilisation on nutrient concentrations in the needle was on nitrogen, which showed a marked responce to treatment. Frost hardiness determinations were made by measuring the leakage of electrolytes from the needles. With freezing treatmen ts that caused heavy damage, there was a maximum hardiness at nitrogen concentrations of between 1.3 to 1.8 % dw, whilst with moderate damage, no such maximum could be detected. In this case, a tendency towards decreasing hardiness with incresing nitrogen concentration was observed.

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06
S92

    Estimation of volume, total and projected area of Scots pine needles from their regression on length
[Text] : научное издание / J.G.K. Flower-Ellis, L. Olsson. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1993. - 19 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 190). - eng. - Библиогр.: с. 17-19. - ISBN 91-576-4779-8 : 340.00 р.
УДК

Кл.слова (ненормированные):
Pinus sylvestris -- needles -- fertilizer

Аннотация: The study had three aims: 1. Todescribe a procedure for measuring basic needles dimensions on transverse sections, and to assess sources of error associated with it. 2. To discover to what extent the application of mineral nutrients affects the basic dimensions of Scots pine needles. 3. To establish relationships between a radily measured character, such as needle length, and the volume, total and projected area of individual needles.


Доп.точки доступа:
Olsson, L.
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06
S92

    Management of structure and productivity of boreal and subalpine forests
[Текст] : сборник научных трудов / Ed. by S. Linder and S. Kellomaki. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1993. - 94 с. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 191). - eng. - Библиогр. в конце ст. - ISBN 91-576-4822-0 : 4200.00 р.
УДК

Кл.слова (ненормированные):
variation -- productivity -- annual forest growth -- nutrients -- photosynthesis

Аннотация: This issue of Studia Forestalia Suecica contains some papers presented during a IUFRO workshop on "Management of structure and productivity of boreal and subalpine forests". The emphasis of the workshop was on the biological and environmental constraints on forest yield in managed boreal and temperate forests. The four main areas selected were forest genetics, forest structure, nutrition and environmental stress. The problems associated with scaling-up basic knowledge from the level of organs to trees and ecosystems were also discussed

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06
F54

    Acta Forestalia Fennica. 76
[Text] : publication of the Society of Forestry in Finnland. - Helsinki : Finska Forstsamfundet, 1964. - 202 с. : рис., табл. - fin. - eng. - Библиогр. в конце ст. - 1.00 р.
УДК

Кл.слова (ненормированные):
variation -- investigation results -- trees and shrubs -- drainage degree -- temperature conditions -- rainfall

Аннотация: The book deals with seasonal variation in the sawmill industry in Finland; ornamental trees and shrubs; the effect of drainage degree on temperature conditions of peatland; ground water table fluctuations for measuring evapotranspiration; analysis of two alternative methods for National Forest Inventories in the Northern Europe; effect of natural subirrigation on the uptake of nutrients by forest plantations; on the distribution of rainfall in the pinestands.

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06
F54

    Analyses of the growth of Scots pine; Matching structure with function
[Text] = Analyysi Mannyn Kasvusta; rakenteen sopeutumista aineenvaihduntaan : научное издание / E. Nikinmaa. - Helsinki : The Society of Forestry in Finland-The Finnish Forest Research Institute, 1992. - 68 p. : рис., табл. - (Acta Forestalia Fennica ; № 235). - eng. - Библиогр.: с. 53-59. - ISSN 0001-5636. - ISBN 951-651-095-7 : 5.00 р.
УДК

Кл.слова (ненормированные):
growth model -- partitioning of growth -- carbon budget -- nutrients -- structure -- pipe model -- heartwood groth

Аннотация: The work deals with analysis of stand development, the connection between functions, structure and environment, components of tree growth, material fluxes, functional interpretations of the woody structure, the role of growth processes in tree functions, stand growth model; tree and stand growth, relationship between the water transporting wood and foliage, simulated tree and stand growth; the bases for the evaluation of the used approach, analysing the theoretical framework, evaluation of the approach, new important features of tree stand growth suggested by the approach.

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06
F54

    Maa-analyysin kaytto kasvupaikan ravinnetilan arvioimiseksi erailla Alkkian metsitetyilla suopelloilla
[Text] = Soil analysis as a means of determining the nutrient regime on some afforested peatland fields at Alkkia : научное издание / S. Kaunisto. - Helsinki : Metsantutkimuslaitos, 1991. - 32 с. : рис., табл. - (Folia Forestalia ; № 778). - fin. - Библиогр.: с. 25-27. - ISSN 0015-5543. - ISBN 951-40-1171-6 : 1.50 р.
УДК

Кл.слова (ненормированные):
nutrients -- soil analysis -- afforestation -- agricultural peatland

Аннотация: Four different afforestation experiments in the same peatland area within a distance of about 1,5 km were included. Soil and needle samples were taken from 116 plots altogether. The soil samples were taken from two depths: 0-10 cm (tilled layer) and 30-40 cm. Soil samples were analyzed for total N, P, K, Ca, Mg, Zn, B, Cu, NH4-N, NO3-N, pH and AAAc extractable P, K, and Ca. For the total nutrients the results were calculated per oven dry weight (mg/kg) and per area (kg/ha), and for AAAc extractable P, K, Ca per laboratory volume (mg/I) in addition. NH4-N and NO3-N were calculated only per laboratory volume (mg/1). The bulk density and organic matter content were also determined.

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06
F54

    Harmaalepan ja rauduskoivun biomassan ja ravinteiden kaytto energiapuuviljelmalla
[Text] = Biomass production and nutrient consumption of Alnus incana and Betula pendula in energy forestry : научное издание / A. Saarsalmi, K. Palmgren, T. Levula. - Helsinki : Metsantutkimuslaitos, 1992. - 29 с. : рис., табл. - (Folia Forestalia ; № 797). - fin. - Библиогр.: с. 19-21. - ISSN 0015-5543. - ISBN 951-40-1250-X : 2.50 р.
УДК

Кл.слова (ненормированные):
biomass -- nutrients -- energy forestry

Аннотация: The effect of fertilization on the biomass production and nutrient consumption of grey alder and silver birch were examined in this study. The effect of nitrogen supplied by alder on the growth of birch was also examined. The study lasted for nine years.


Доп.точки доступа:
Palmgren, K.; Levula, T.
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