Báo cáo lâm nghiệp: "Utilization of digital photogrammetry in forestry mapping" docx

... forestry mapping rationalization. Digital photogrammetry in forestry mapping Digital photogrammetry is a process of digital image interpretation in a computer without human assistance. Digital image ... the beginning of the 90’s, forestry mapping changed from the analogue making of the maps with thematic forestry themes into a system, the output of which is...

Ngày tải lên: 07/08/2014, 03:22

... only species showing economical importance, the ANFI sub- sumed maple species. A generally small amount of maple in the species composition had been expected and is plausible because of intolerance ... for mortality with increasing dbh for the other tree species, result- ing in large trees never dying. erefore the results of the long term simulations became unre...

Ngày tải lên: 07/08/2014, 03:22

... nutrient content of aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, Rajasthan, India. e nutrient contents in the total biomass of teak in the plantation ... involved. Plantation species of the genus Acacia, Pinus, Euca- Quantication of nutrient content in the aboveground biomass of...

Ngày tải lên: 07/08/2014, 03:22

... utilization of tertiary roads and the maintenance of the Lednice-Valtice Cultural Landscape (LVCL) in a historical context. Furthermore, in virtue of these relations, to draft the methodology ... reflected in the forest trans- port network. ese changes were above all in the area of floodplain forests after the regulation of the Dyje River. e interc...

Ngày tải lên: 07/08/2014, 04:20

... to the low age of poplar plantation, the eval- uated clones were divided into two groups: – A. group of candidate clones yielding more than cultivar 'I-214' at the age of 6 years in ... clones) at the age of 6 years. Survival rate of 11 clones was 91 .6% of individuals and survival rate of only 2 clones was 83.3%. Trees in border rows der...

Ngày tải lên: 07/08/2014, 10:21

... years after the thinning similarly like in previous years. Positive ef- fects of the high-type thinning in 2001 were reflected in the 17%increase of LAI in 2002. e realized thin- ning exhibited ... aboveground biomass (TBa) and the total aboveground biomass increment (DTBa) were ob- tained on the basis of stand inventory realized at the end of each growin...

Ngày tải lên: 07/08/2014, 10:21

... agro-forestry system in changing climate: A case study of the middle Himalayan region of Tehri Garhwal, India C. P. K Ecosystem and Environment Management, Indian Institute of Forest Management, ... climate change; conservation and management; Tehri Garhwal  e majority of indigenous hill agricultural sys- tems in the Garhwal Himalayan region...

Ngày tải lên: 07/08/2014, 10:21

... zone rings of early and late wood are contained, the Variation of conducting area in stems of European larch (Larix decidua) growing in fresh mixed coniferous forest and fresh mixed forest ... classes in age class IV in fresh mixed coniferous forest (A) and fresh mixed forest (B) sites Fig. 9. A comparison of characteristic...

Ngày tải lên: 07/08/2014, 10:21

... Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902. Application of digital elevation model for mapping vegetation tiers D. V Department of Forest ... additive model by which the smooth surface of vegetation tiers is fitted are statistically significant; the deviation explained by the model (D 2 ) is 0.49. Model for...

Ngày tải lên: 07/08/2014, 10:21

... edge of P-1). The regeneration of the stands is always natural (shoot + seedling); no planting was identified in the woodlots studied. Clearing, thinning of seedlings, early thinning and pruning were ... particu- larly concerning the density of the maintained standards, but were often in the framework of a cordial relationship. Cutting regimes in small forest 927 [20]...

Ngày tải lên: 07/08/2014, 16:20

... 285 Ann. For. Sci. 62 (2005) 285288 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005021 Note Partitioning of remobilised N in young beech (Fagus sylvatica L.) is not affected by elevated ... ambient. During the fol- lowing weeks, however, partitioning of labelled N increased in the shoots and decreased in the roots in the elevated treatment, an...

Ngày tải lên: 08/08/2014, 00:21

... 10.1051/forest:2005040 Original article Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values Florent EYMA a *, Pierre-Jean MÉAUSOONE b , ... (rake angle, clearance angle, cutting plane, etc.). The depth of cut has been decreased to 1mm in order to obtain appropriate chip form...

Ngày tải lên: 08/08/2014, 00:22

... (2006) 8392 â INRA, EDP Sciences, 2006 DOI: 10.1051/forest:20050100 Original article Variation of morphological traits in natural populations of maritime pine (Pinus pinaster Ait.) in Morocco Nadya ... in seven geographical origins of maritime pine (Pinus pinaster Ait.), Theor. Appl. Genet. 88 (1994) 407–411. [8] Baradat P., Marpeau A., Le pin marit...

Ngày tải lên: 08/08/2014, 00:22

... vegetation. The total stock, in tC, for the whole of Fougères forest was therefore the sum of the stocks in all the plots. Then the range of the total stock was calculated and the corresponding map ... the vegetation. From the statistical analyses and existing maps these point data were extrapolated to the whole forest using two changes of scal...

Ngày tải lên: 08/08/2014, 00:22

... during the night but to a lesser extent. The other surveyed compounds had no storage function during this time. Distribution of storage compounds inside a growing leaf In ... iodine starch staining of intact leaves showed that bundlesheath cells stored a large amount of starch which was not taken into account in our analysis. Conclusions...

Ngày tải lên: 09/08/2014, 04:20