Báo cáo lâm nghiệp: "Winter moisture content and frost-crack occurrence in oak trees (Quercus petraea Liebl and Q robur L )" ppt
Báo cáo lâm nghiệp: "Composition of psocid taxocenoses (Insecta: Psocoptera) in Fageti-Piceeta s. lat. and Piceeta s. lat. forests in the Western Carpathian Mts" pps
... sweepings or beatings were carried out in each locality. Caught psocids were sucked into the exhauster and stored in a small test tube with 70% alcohol. All samples were collected and determined ... occurring in the 7 th AVZ, are missing in the lower and middle altitudinal veg- etation zones. Taxocenosis of the 8 th (Piceeta s. lat.) altitudinal vegetation zone Eudominant...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt
... full evolution. e multiple demands on forests in a rapidly evolving economic, social, and political environment require maintaining a high level of forest management standards and a flexible ... responsibly. Openness and flexibility in reacting to changing societal needs and values, understanding of the ecological, social and economic drivers determining their political releva...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Improving RBS estimates – effects of the auxiliary variable, stratification of the crown, and deletion of segments on the precision of estimate" pps
... 50% (European mountain ash) and 85% (old pine). Keywords: randomized branch sampling; multistage sampling; unequal selection probabilities; auxiliary variables; pps-sampling J. FOR. SCI., 53, ... can easily be transferred to multistage samples (C 2003). (In the fol- lowing, we write q i instead of q 1 , q ij instead of q 2 , and so on, in order to indicate the units...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The evolution of natural floodplain forests in South Moravia between 1973 and 2005" pptx
... e loosening of the canopy due to dying and fall of some of the large oaks is a condition crucial for the development of level 3. e increasing EIV for the light and moisture of the herb layer ... recorded any growing seed- lings of Quercus robur. e presence of this tree in lower woody levels therefore remains close to zero. e presence of Quercus robur in layer 1 could be...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "How to identify larvae of the protected species: Dioszeghyana schmidtii (Diószeghy 1935), and survey its presence and abundance (Lepidoptera: Noctuidae; Hadeninae)" pot
... Schiffermüller 1775) (Fig. 11). Living on oaks and other woody plants – Larva with inconspicuous pinacula. Cephallic capsule relatively small 14. 14(12) Laterally line inconspicuous usually, pro-tho- racic ... (Hufnagel 1821) (Fig. 7). Living polyphageously on broadleaved trees and herbs – Laterally line locally bigger spots absent or body coloration distinct 8. 8(7) Laterally line...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Patterns of longitudinal within-tree variation in pulpwood and solidwood traits differ among Eucalyptus globulus genotypes" pot
... unsampled (Tab. III) trees. In contrast, the Strzelecki and Flinders Island subraces exhibited little decay in both sampled and unsampled trees. In previously unsampled trees, significant family ... 13–14. [25] Pinkard E.A., Mohammed C., Beadle C .L. , Hall M.R., Worledge D., Mollon A., Growth responses, physiology and decay associated with pruning plantation-grown Eucalyptus gl...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: " The management of snags: A comparison in managed and unmanaged ancient forests of the Southern French Alps" pot
... during the sylvicultural and sylvigenesis cycle. For this mountain ecosystem, our results should provide guidelines for forest managers to maintain and sustain biodiversity. 2. MATERIALS AND ... increas- ing temporal and spatial gaps in the availability of CWD density within managed stands and an increasing distance between remnant old growth stands. In our study sites, the spat...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Ectomycorrhizal colonization of Alnus acuminata Kunth in northwestern Argentina in relation to season and soil parameters" potx
... sp., Selaginella sp. and Prunella sp. [2]. 2.2. Field collection and laboratory analysis Twenty square plots (10 × 10 m) were established randomly at each site during spring 1999 and fall 2000. ... Grand L. F., Haines L. W., The effect of fertilization on growth and mycorrhizae numbers in 11 years-old loblolly pine plantations, For. Sci. 23 (1977) 37–44. [31] Miller S .L. , Koo C....
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Eighth-year response of Douglas-fir seedlings to area of weed control and herbaceous versus woody weed control" docx
... water oak (Quercus nigra L. ), southern red oak (Quercus falcate Michx.) and blackgum (Nyssa sylvatica Marsh.) – resulted in volume gains that have continually increased in magnitude relative ... from 244 to 274 m. Soils are of the Nekia series and are well-drained and moderately deep, located on foothills and higher rolling uplands. They were formed in colluvium a...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Effect of contrasting water supply on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga" pot
... (Picea abies (L. ) Karst.), 11 aspens (Populus tremula L. ), 3birches (Betula alba L. ), 2 mountain ashes (Sorbus aucuparia L. ) and 2 alders (Alnus incana (L. ) Moench) by stainless steel band den- drometers ... in 2000 Seasonal increment of basal area in spruce represented over 80% of the entire stand basal area increment (as indicated by scaling the data up to the stand level). In...
Ngày tải lên: 08/08/2014, 00:22