Báo cáo lâm nghiệp: "Fine root distribution, seasonal patter

Báo cáo lâm nghiệp: "Fine root distribution, seasonal pattern and production in four plantations compared with a natural forest in Subtropical China" docx

... Ormosia xylocarpa (OX) and Castanopsis kawakamii (CK), and an adjacent natural forest of Castanopsis kawakamii (NF): (1) fine -root biomass, distribution and seasonal patterns; and (2) fine -root production ... 10.1051 /forest: 2004062 Original article Fine root distribution, seasonal pattern and production in four plantations compared with a natur...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Litterfall, nutrient return, and leaf-litter decomposition in four plantations compared with a natural forest in subtropical China" ppt

... kawakamii (CK), and compared with that of an adjacent natural forest of Castanopsis kawakamii (NF, ~150 year old) in Sanming, Fujian, China. Mean annual total litterfall over 3 years of observations ... Ormosia xylocarpa (OX), and Castanopsis kawakamii (CK), and an adjacent natural forest of Castanopsis kawakamii (NF); (ii) quantify nutrient return through litterfall in...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx

... has been a long tradition in the Czech standards to fix up the necessary quantitative and quali- tative parameters for seedlings and plants planted out. However, until the last Czech standard ... regeneration of forest land after final cut within a 2-year period and to get the new reforestation in “safe” growing conditions within 7 years after final cut. is underlines the...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "How do lepidopteran seasonal guilds differ on some oaks (Quercus spp.) – A case study" pdf

... rubra Psychidae Tineidae Bucculatricidae Gracillaridae Ypsolophidae Oecophoridae Coleophoridae Gelechiidae Tortricidae Pyralidae Limacodidae Lycaenidae Drepanidae Geometridae Lasiocampidae Notodontidae Lymantriidae Noctuidae Psychidae Tineidae Bucculatricidae Gracillaridae Ypsolophidae Oecophoridae Coleophoridae Gelechiidae Tortricidae Pyralidae Limacodidae Lycaenidae Drepanidae Geometridae L...

Ngày tải lên : 07/08/2014, 10:22

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Báo cáo lâm nghiệp: "The angular distribution of diffuse photosynthetically active radiation under different sky conditions in the open and within deciduous and conifer forest stands of Quebec and British Columbia, Canada" pptx

... spruce stands and (B) red alder and Douglas-fir stands. Angular distribution of diffuse PAR 49 RLR sensor beneath aspen and Jack pine stands were qualita- tively similar. Overcast and clear sky ... photosynthetically active radiation (PAR) was characterised in the open and beneath deciduous and conifer forests in Quebec and British Columbia, Canada, under overcast and cle...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp:"Seedling root growth of six broadleaved tree species grown in competition with grass under irrigated nursery conditions" pptx

... hand-thinning, maintaining as even a spacing as possible. One complete row was taken at random from the plot of each species in each bed at each harvest, these were at approximately weekly intervals ... harvested at each date. Data for each species were analysed separately using Genstat [25]. Height and weights were transformed to natural logarithms and the data analysed using ANO...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp:" Structure, spatial distribution and competition in mixed jack pine (Pinus banksiana) stands on clay soils of eastern Canada" pps

... competition in mixed jack pine (Pinus banksiana) stands on clay soils of eastern Canada Martin BÉLAND a, b *, Jean-Martin LUSSIER c , Yves BERGERON a , Marie-Hélène LONGPRÉ a , Michel BÉLAND d a Groupe ... skewness in basal area distribution of jack pine between pure jack pine stands and stands composed of a mixture of jack pine and either of white birch or aspen. Trembling...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx

... contained in humus acids (hereinafter C-HS) was determined spectrophotometrically ac- cording to characteristic absorbances in pyrophos- phate. Carbon contained in humic acids (hereinafter C-HA) and ... higher values of potassium in spread windrows than in the remaining intervening strips where substitute stands have been left. The augmentation is significant and compared...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: " Floodplain forests of Litovelské Pomoraví and their management" pps

... ﬂoodplain forest is a natural formation that is very rare in Europe, appearing in the area of its potential natural existence of alluvial landscape only in a historically limited extent. In the ... for ca 14% of the ﬂoodplain forest area. In the forest management plan, stands which had been managed as coppice -with- standards forest and at the time of indirec...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: " Influence of stand density, thinning and elevated CO2 on stem wood density of spruce" pot

... vertical proﬁle. is increase was more obvious in E variant (about 6% in d subvariant and only 3% in s subvariant). e highest increase of SWD values was found in Ed subvariant, particularly in ... and thinning. MATERIALS AND METHODS Site and stand description: ere were two vari- ants of glass domes with adjustable windows (DAW) – ambient (A, 350 µmol(CO 2 )/mol) and...

Ngày tải lên : 07/08/2014, 03:22

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