Báo cáo lâm nghiệp: "Studies on Scots pine (Pinus sylvestris

Báo cáo lâm nghiệp: "Studies on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) needle cuticles" potx

... Results The young needles of Norway spruce (Picea abies L. Karst .) develop in early June under northern Finnish conditions, the Scots pine (Pinus sylvestris L. ) needles about ... 32-38 Holloway P.J. (198 2) Structure and histochem- istry of plant cuticular membranes. An overview. Studies on Scots pine (Pinus sylvestris L...

Ngày tải lên : 09/08/2014, 04:20

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**Báo cáo khoa học: "Genetic variation of the pilodyn-girth relationship in Norway spruce (Picea abies L [Karst])*" doc**

... relation pilodyn-circonférence chez l épicéa commun (Picea abies L [Karst ]). La variabilité génétique de la relation entre la profondeur de pénétration de l aiguille du pilodyn ... α and β > 0); this could be the ana- lytical expression of the curvilinear model mentioned earlier. Unlike Colin et al (199 3) and...

Ngày tải lên : 08/08/2014, 18:21

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Báo cáo lâm nghiệp:"Post-grazing Scots pine colonization of mid-elevation heathlands: population structure, impact on vegetation composition and diversity" pdf

... stages: ( 1) Open grasslands and heathlands without tree colonization; ( 2) Grasslands in the process of being colonized (scattered pines); ( 3) Dense and young Scots pine stands; ( 4) Submature Scots pine ... peuplements pionniers de pin sylvestre (Pinus sylvestris L. ) se sont installés spontanément sur les landes et pelouses du Mont-Lozère (Parc National...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour parameters" pptx

... parameters L* , a*, b*, C* and H*. Table III presents the values obtained for the only 10 peripheral positions labelled PW (10 per log); as a comparison Table IV gives the mean of all radial positions in ... the bottom logs. Mean values of L* are higher while those of a* and b* are lower, when peripheral values are compared to all measured values. Additionnaly standard deviations are al...

Ngày tải lên : 08/08/2014, 00:22

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

... irrigation, liming, and N-fertilisation on elemental concentrations in needles, litter ﬂuxes, volume increment, and crown transparency of a N saturated Norway spruce stand. Forest Ecology and ... plots are shown in Table 1. e evaluation of the mineral nutrition of spruce stands was carried out on the basis of regular collec- tions of needle samples and their chemical an...

Ngày tải lên : 07/08/2014, 10:21

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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

... including smaller outsorted (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 ... caused genetically and balanced by higher resistance to adverse mountain conditions and what seedlings are really to be considered as culls. CONCLUSIONS e monitoring of plantations on mount...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp:"Succession from bog pine (Pinus uncinata var. rotundata) to Norway spruce (Picea abies) stands in relation to anthropic" docx

... hatches: bog pine, pubescent birch and Norway mixed woodland; vertical hatches: spruce woodland; black areas: pine woodland; white circle: phytocoenosis No 1 (pine stand); black circle: phytocoenosis ... 2 (bog pine and Norway spruce mixed stand). 350 F. Freléchoux et al. Tab. I and Appendix). Synusiae are less numerous and Norway spruces occupy all layers in the phyt...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: " Site quality equations for Pinus sylvestris L. plantations in Galicia (northwestern Spain)" ppt

... de la fonction différentielle de McDill et Amateis donna le meilleur compromis entre les aspects biologique et statistique, fournissant les courbes de qualité les plus adéquates. C’est donc l équation ... stations pour des plantations de Pinus sylvestris L. en Galice (nord-ouest de l Espagne). À partir des équations différentielles de Sloboda et McDill-Amateis, ainsi que de la forme inté...

Ngày tải lên : 08/08/2014, 00:21

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Báo cáo lâm nghiệp: "Optimising the management of Pinus sylvestris L. stand under risk of fire in Catalonia (north-east of Spain)" ppsx

... rotation length (Fig. 8). Also the SEV was strongly correlated with the factor by which the model prediction was multiplied: multipli- ers 0, 0.5, 1 and 2 resulted in soil expectation values of ... maxi- mising soil expectation value under different fire probabilities and number of thinnings (0, 1, 2 and 3). Figure 7. Optimal rotation length (A) and soil expectation value (SEV) (...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp: " Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands under one-year outbreak" pptx

... 2-years-old shoots and older. e age distribution of fallen shoots during the growing seasons 2004–2006 Table 2. Length of the ﬁrst tunnel in shoots with one ( 1) and two ( 2) attacks Stand and study ... structure of the local population of pine shoot beetles, i.e. mutual relations between adults of old and young generation. Probably the majority of maturation feedings a...

Ngày tải lên : 07/08/2014, 04:20

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Báo cáo lâm nghiệp: "Studies on Scots pine (Pinus sylvestris L ) and Norway spruce (Picea abies (L ) Karst ) needle cuticles" potx

Báo cáo lâm nghiệp: "Studies on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) needle cuticles" potx

Báo cáo khoa học: "Genetic variation of the pilodyn-girth relationship in Norway spruce (Picea abies L [Karst])*" doc

**Báo cáo khoa học: "Genetic variation of the pilodyn-girth relationship in Norway spruce (Picea abies L [Karst])*" doc**