Báo cáo lâm nghiêp: "Mesure de la variabilité de la couleur du bois Nouvelle méthode appliquée aux carottes de sondage" doc

... composés vanilliques. La décomposition de la lignine vers la profondeur Tableau V. Valeur moyenne et écart-type de la lignine SVC et de la lignine totale des différents horizons des cinq placettes de chacune des quatre ... compte de la distribution des arbres et des végé- taux de la strate herbacée à l’échelle parcellaire. En effet, les jeunes placettes âgées de 10...

Ngày tải lên: 08/08/2014, 01:22

... populations can develop quite independently of it. is idea also ap- pears to be supported by the development of studied populations in both pheasantries. e relative abun- dance of the populations ... family Soricidae, which was evidently related to their general decrease in Moravia during the stud- ied period (Z, personal communication). It became particularly evident in the genus...

Ngày tải lên: 07/08/2014, 03:22

... meet the demands of industry, coniferous species were preferred due to their faster increment and therefore, Norway spruce in the mountains and Scots pine in the lowland were usually planted. ... přeměna různé ekonomické výsledky. Za účelem snížení nákladů na tento proces byla provedena analýza na základě potenciálních příjmů z prodeje dřeva. Cílem analýzy bylo najít optimální čas pro ......

Ngày tải lên: 07/08/2014, 03:22

... underplantings. If plants grown in the shade in a nursery are outplanted onto unprotected clear- cut areas or, vice versa, if beech plants from a sunny nursery are set out in gaps and underplantings, ... leaves, larger total leaf area and higher dry matter of leaves per 1 plant were deter- mined.  e average area of one leaf was larger in seedlings grown in the shade. Diff erent light cond...

Ngày tải lên: 07/08/2014, 10:21

... area index (LAI) changes. Dur- ing the investigated years the LAI value on the FD plot increased up to 11%. e change in the LAI value on the FS plot amounted to 17% despite the LAI reduction ... their tree density in 1995. One of the two plots (denoted as FD) represented a high tree density (2,650 trees·ha –1 , LAI = 9.7). e other plot (denoted as FS) represented a medium stand densit...

Ngày tải lên: 07/08/2014, 10:21

... and incoherency of opin- ions and attitudes of the respondents, possibly caused by ignorance and misinformation brought about by school education (and education in gen- eral) and mass media on ... production are the least important functions according to the respondents. 20% of respondents claimed that increased costs needed to improve non-market forest functions, used by the visitors, .....

Ngày tải lên: 07/08/2014, 10:21

... d’échantillons de liber et d’aubier récoltés à partir des galeries des insectes, puis identifiés. La virulence de l’espèce d’Ophiostoma la plus commune a été évaluée en utilisant des plants de Pin sylvestre ... summary). [47] Raport o stanie lasów w Polsce, Centrum Informacyjne Lasów Pañstwowych, Warszawa, 2005. [48] Rennerfelt E., Über den Zusammenhang zwischen dem Verblauen des H o...

Ngày tải lên: 07/08/2014, 16:20

... le mieux possible aux objectifs fixés. Ce système comporte 3 modules qui prennent respectivement en charge : (i) la simulation de la croissance en relation avec la densité de plantation initiale, ... system “MGC_larch”. even-aged larch stands (European larch (Larix decidua Mill.), Japanese larch (Larix kaempferi (Lamb.) Carr.) and hybrid larch (Larix eurolepis Henry)) growing in lo...

Ngày tải lên: 07/08/2014, 16:21

... croissance de Picea abies cultivés en conteneurs. La survie, la production de nouvelles racines, la croissance de la pousse, le potentiel hydrique du xylème et la fluorescence de la chlorophylle ... sécheresse après plantation, la production de nouvelles racines des semis en croissance a doublé comparativement aux semis dormants pendant les 6 semaines d’étude. Pour...

Ngày tải lên: 08/08/2014, 00:21

... Wildpret de la Torre W., Estudio florístico y fito- sociológico del bosque de Madre del Agua en Agua García (Tene- rife), in: Homenaje al Profesor Doctor Telesforo Bravo, Universi- dad de La Laguna, ... fotosintética de árboles de la laurisilva canaria, Universidad de La Laguna, Tenerife, Spain, 1998. [12] González-Rodríguez A.M., Morales D., Jiménez M.S., Gas exchange cha...

Ngày tải lên: 08/08/2014, 00:22