Báo cáo lâm nghiệp: "The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L ) forest" docx

Báo cáo lâm nghiệp: "The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L.) forest" docx

... a lot of data on the liming eﬀect on the soil chemistry changes but data on the liming eﬀect on the mineral nutrition of forests are scarce. us, the mineral nutrition of mountain Norway spruce ... limed in order to compare the liming eﬀect on the mineral nutrition of spruce stands.METHODResearch on the mineral nutrition of limed and not limed Norway spruce stands was conducted at the ... source of timber, inﬂuence on local climate, etc .). But the fulﬁlment of these functions is limited by the poor condition of Czech forests. Despite the air pollution reduction during the 1990s,...

Báo cáo lâm nghiệp: "Environmental risk assessment based on semi-quantitative analysis of forest management data" pptx

... of sandstone, slate and clay-stone. Moderately cold and very wet climate is typi-cal of the region. Recently, bark beetles (Scolytidae) and honey fungus (Armillaria sp .) have played the most ... region Orava region  e Low Tatras regionestimation Wald st. estimation Wald st. estimation Wald st.bi(bi/s(bi )) 2bi(bi/s(bi )) 2bi(bi/s(bi )) 2Altitudinal vegetation zone ... evidence of overdis-persion and the models ﬁ tted the data well (H, L  200 0). In addition, how well the regres-sion models ﬁ tted was assessed by the proportion of cases correctly classiﬁ...

Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx

... variability of height growth of spruce mountain populations. Because the seedlings originating from pollination with pol-len of high-elevation trees are generally smaller, the discarding of small ... (commonly culled) ones. e smallest seedlings can be grown one year longer and subsequently planted out in the same locality as the remaining planting material of the same seed lot.Keywords: Norway ... Functions in Anthropically Disturbed Biotopes in Changing Environmental Conditions.Eﬀect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L. ]...

Báo cáo lâm nghiệp: "Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands" potx

... selected on the basis of compa-rable conditions of the spruce forest altitudinal zone and ecological series with generally identical soil-forming processes (podzolization) and on the basis of diﬀerent ... 200 0). Intensive natural elution of ele-ments from soil, naturally high soil acidity and high concentrations of Al3+ foreshow the existence of rhizosphere only in close relations with the ... determined by Kjeldahl method (Z et al. 199 7). Statistical analysesBased on the satisfaction of basic assumptions about the population statistical evaluation of data was usually done on a standard...

Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt

... between the size of the root system and size of the aboveground part. It was calculated as the ratio of the cross-sectional areas of all horizontal skeletal (HKK) and anchor roots (anchors) at the ... small operating root systems without rots die soon after the plantation. Considering the following facts – the analyzed localities have not been aﬀected by air-pollution, the supply of soil ... exudations and rots of individual roots – also on the stem base and on the bole itself. (It can be deduced that the impact of the honey fungus is of a long-term character in the con-cerned localities,...

Báo cáo lâm nghiệp: "Current possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts" doc

... (Regeneration of large-scale clearings)Exponenciální (Inspection Bohemian - Moravian upland)Exponential (Regeneration of small-scale clearings)Exponential (Regeneration of large-scale clearings) Exponential ... and the Bohemian-Moravian UplandPlant condition Small-scale clear-felled areasLarge-scale clear-felled areas Underplanting of Norway spruce Underplanting of white birchAll plantsPlants ... 13Age(cm)Regeneration of small-scale clearingsRegeneration of large-scale clearingsInspection Bohemian - Moravian uplandExponenciální (Regeneration of small-scale clearings)Exponenciální (Regeneration...

Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

... evaluation of the Norway spruce (Picea abies [L. ] Karst .) rhizosphere envi-ronment the samples from humiﬁ cation (H) and organomineral (Ae, Ep) horizons were collected by the method of soil ... Eﬀ ects of drought on the yellowing status and the dynamics of mineral elements in the xylem sap of declining spruce (Picea abies [L. ] Karsten). Plant and Soil, 150: 303–306.D L. , KŪ ... mg·kg–1. Only in 15% of the plots it decreases below the limit of the lower optimum of 130 mg·kg–1. In the subsequent organomineral horizon (Ae/Ep) the values of Ca indicate the lower optimum...

Báo cáo lâm nghiệp: "Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast China" pptx

... volume of HCl consumed by air-dried soil controls (ml),V – volume of HCl consumed by soil samples with dif-ferent moisture levels (ml),C – concentration of hydrochloric acid standard solu-tion ... soil moisture and mineralization of C and N in soils with different vegetation types on the northern slope of the Natural Reserve Zone of Changbai Mountain. The elevation influence on soil C ... potential rate of initial C mineralization (C0k) all increased as the soil moisture rose. The elevation or vegetation type partially affected the soil C and N mineralization but without a clear...

Báo cáo lâm nghiệp: "Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid Żywiecki Mts. from the aspect of their nutrition status" pptx

... develops poorly and only partial tissue ligniﬁcation takes place (Table 4). According to the standards set by C et al. (199 0), the content of calcium in the second year of needles in all the ... diminishes), and rapidly decreasing content of calcium (Tables 2 and 3). A similar distri-bution of the forms of magnesium and a low content of calcium, especially in the deeper layers of the proﬁles ... complex, present also in the chemical composition of spruce needles where most of the elements under analysis were in the lower zone of the optimum range or below the threshold values. e results...

Báo cáo lâm nghiệp: "Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea abies [L.] Karst.) from intensive nursery technologies with current bareroot plants" ppt

... index) and ac-cording to the presence of colour changes in needles (discoloration index) (Table 4). DISCUSSIONe results of evaluating the morphological traits of plantable planting material ... container plants (plugs), especially for the mean values of photosynthetically active radiation (Fig. 2). e curves document the higher capacity of container plants (plugs) to utilize light energy, ... L  et al. (199 3), only the content of phosphorus in plugs was slightly lower and bareroot plants had a very high content of calcium.Table 3 shows the basic parameters of chlorophyll ﬂuorescence...

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