Báo cáo lâm nghiệp: "Forest transport roads according to natural forest regions in the Czech Republi" pps

... m 3 /ha (according to Report on the Condition of Forests and Forestry in the Czech Republic, 2004). Timber felling In the whole post-war period, annual timber fell- ing in the forestry of Czech Republic ... some dynamic series of forest production and trends of forest economics in the Czech Republic V. K Faculty of Forestry and Woo...

Ngày tải lên: 07/08/2014, 03:22

... addition to them other roads also contain rural roads. e total length of single grades of forest transport roads in forests in the Czech Republic was rated dur- ing the forest inventory in the Czech ... classification forest transport roads are divided, in addition to grades, into forest roads and other roads leading through the forest. e...

Ngày tải lên: 07/08/2014, 10:21

Ngày tải lên: 07/08/2014, 16:20

... al. and giving a more realistic view of total diversity [1]. The use of internal transcribed spacer (ITS) primers to amplify fungal ITS of rDNA was originally described by White et al. [32] and ... currently represented in databases. It was also realized that single bands did not necessarily originate from one species and that one band could contain Wood decomposer...

Ngày tải lên: 07/08/2014, 16:20

... each combination of plot and month. Annual leaf biomass was calculated by summing monthly leaffall. To quantify the phenological pattern of leaffall and the corre- sponding phenological structure of the ... 2006) Abstract – We monitored leaf biomass, seasonal changes in leaffall, and plot growth for 11 years post-thinning in a secondary deciduous har...

Ngày tải lên: 07/08/2014, 16:20

... Ann. For. Sci. 64 (2007) 781–786 Available online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051 /forest: 2007058 Original article A trait database for Guianan rain fore st trees ... Écologie des For ts de Guyane, Kourou, France (Received 11 November 2006; accepted 13 March 2007) Abstract – We present a plant trait database covering autecology for rain...

Ngày tải lên: 07/08/2014, 16:21

... by the square root of the respective sampling variances, obtained from the inverse of the aver- age information matrix. Using the estimated components of variance, approximations of additive genetic, ... from the sampling (co )variances of the components in the denominator of equation (3). The standard errors of were calculated according to the general e...

Ngày tải lên: 08/08/2014, 00:21

... petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France Laurent BERGÈS a *, Richard CHEVALIER a , Yann DUMAS a , Alain ... water and nutrient budgets in predicting site index variations The climate/water-related factors and nutrient-related fac- tors explained 0 to 25...

Ngày tải lên: 08/08/2014, 00:22

... carried out in the morning between 07 00 and 12 00 h in the forest understorey and between 07 00 and 10 00 h in the clearing to avoid a mid-day stomatal closure. During the A-PPFD responses, the mean ... structure and functional leaf traits in the tropical forest tree Dicorynia guianensis Amshoff (Caesalpiniaceae) Jean Christophe ROGGY a *...

Ngày tải lên: 08/08/2014, 00:22

... Pascual L., Trasobares A. , Examining alter- native landscape metrics in ecological forest landscape planning: a case for capercaillie in Catalonia, Investigaciones Agrarias, Sist. Recur. For. 13 (2004) ... inFlor, a Manage- ment Information System in Forest resources, in: Pukkala T., Eerikainen K. (Eds.), Modelling the Growth of Tree Plantations and Agroforestry Systems...

Ngày tải lên: 08/08/2014, 00:22

... done to date, like those available in databases of taxa char- acteristics. 5. SELECTED CLUSTERING STRATEGY FOR MODELLING TROPICAL FOREST DYNAMICS Ecological strategies show a major drawback: once ... How to assign rare species with unreliable parameters or even missing data? (ii) How to extrapolate a species classifi- cation on a well documented forest to another forest...

Ngày tải lên: 08/08/2014, 00:22

... 10.1051/forest:2004025 Original article Effects of microsite on growth of Pinus cembra in the subalpine zone of the Austrian Alps Mai-He LI a,b *, Jian YANG c a Institute for Forest and Mountain Risk Engineering, ... cor- responding to the decrease in length of the growing season [19]. Paulsen et al. [31] found that annual radial increments of Pinus...

Ngày tải lên: 08/08/2014, 01:21

... conforming to a French origin. Each wood lot corresponded to all wood samples originating from one particular cooperage industry. Wood samples of known foreign origin were therefore included in some ... Sci. 61 (2004) 97104 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2003089 Original article DNA-based control of oak wood geographic origin in the context o...

Ngày tải lên: 08/08/2014, 01:22

... deviation from linearity, con- firming that even under stress conditions, Original article Limitation of photosynthetic activity by CO 2 availability in the chloroplasts of oak leaves ... availability in the chloroplasts. Finally, the CO 2 availability decreased with increasing drought in the soil, stressing the importance of...

Ngày tải lên: 08/08/2014, 18:21

... Original article Survival and growth of Pinus halepensis Miller seedlings in a semi-arid environment after forest soil transfer, terracing and organic amendments A Roldán, I ... trial was designed as a two factor factorial with four soil preparation treatments as the first factor (mechanical terracing, manual terracing, manual...

Ngày tải lên: 08/08/2014, 18:21