Báo cáo lâm nghiệp: "Estimation of carbon stocks in a beech forest (Fougères Forest – W. France): extrapolation from the plots to the whole forest" pps

... 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

... 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

... 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

... pine. The uncertainty in the biomass estimates of birch was high, since the number of birch stands was low in both the material used for formulation of the BEFs, and in the Swedish data on which the ... Svealand and Götaland regions. In Svealand, the use of BEFs for Norway spruce in young stands resulted in lower, and in mature stands, higher bio...

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

... 10.1051/forest:2003031 Original article Estimation of crown radii and crown projection area from stem size and tree position Rüdiger GROTE* Chair for Forest Yield Science, Department of Ecology and Landscape Management, ... determination of radius length and potential crown cover (pr1 and pr2: maximum radii, alin1 and blin1: linear radii estimation, al...

Ngày tải lên: 08/08/2014, 01:21

... vulgaris and Rosmarinus officinalis) and herbaceous plants (Lavandula latifolia, Sanguisorba minor, Argyrolobium zanonii, Bituminaria bituminosa, Aphyllanthes monspeliensis, Barlia robertiana, ... Information) [2]. Sequences of RFLP-taxa are available in the EMBL database. The relative abun- dance of ITS RFLP-taxa was calculated by dividing the number of ECM of each ITS RFLP-t...

Ngày tải lên: 08/08/2014, 01:22

... results in the light of some opti- Original article Optimization of carbon gain in canopies of Mediterranean evergreen oaks S Rambal C Damesin R Joffre M Méthy D Lo Seen 1 ... main goal of this study was to analyze the depth-distribution of leaf mass per area (LMA) measured in ten canopies of Mediterranean evergreen oaks, five...

Ngày tải lên: 08/08/2014, 18:21

... common oak decline in relation to mycorrhizal status. Thus, a preliminary study on the probability of mycorrhizal infection in an Italian area affected by decline was carried ... quantitative analysis of root samples shows a significant decrease in mycorrhizae proportion between nondeclining and declin-

Ngày tải lên: 08/08/2014, 18:21

... 5) with a core of clones between 37 and 44 degrees Estimation of genetic parameters in the European black poplar (Populus nigra L.). Consequence on the breeding strategy Ch. ... discussion, need to be based on the genetic and economic properties of the species. The present study aims to estimate the genetic parameters i...

Ngày tải lên: 09/08/2014, 02:21