Báo cáo lâm nghiệp:"An examination of the interaction betwee

Báo cáo lâm nghiệp:"An examination of the interaction between climate, soil and leaf area index in a Quercus ilex ecosystem" ppt

... C. Hoff and S. Rambal fall and leaf quantity [33, 43]. Important then are the timing of rainfall and drought events, the quantity of rainfall, the storage capacity of the soil and quantity and ... relations between the LAI and both climatic and soil factors; (2) understand how the water and carbon balances behave as a function of water availabilit...

Ngày tải lên : 08/08/2014, 01:21

9
486
0

Báo cáo lâm nghiệp: " An estimation of willingness to pay for asparagus (Asparagus racemosus Willd.) collectors in Makawanpur District, Nepal" ppsx

... Australia 2 Faculty of Education and ACSC, USQ, Toowoomba, Australia 3 Faculty of Business and ACSC, USQ, Toowoomba, Australia ABSTRACT: e collection and sale of asparagus (Asparagus racemosus ... by managing the Department’s and the National Park’s forests, and giving legal permissions to collect asparagus from the National Park, which would have happened anyway at...

Ngày tải lên : 07/08/2014, 10:21

7
495
0

Báo cáo lâm nghiệp: "An approach for the analysis of vegetation spectra using non-linear mixed modeling of truncated power spectra" pdf

... function. A program for the estimation of the parameters was written in MATHEMATICA ® [61] since no major software package currently offers the Laplace approximation as an option. Final estimates ... treated statistically as repeated measurements or longitudinal data [63]. Longitudinal data are charac- terized by a within- and between- subject variance (covariance) of ob...

Ngày tải lên : 08/08/2014, 01:22

9
598
0

Báo cáo lâm nghiệp: "Speciﬁcation of the beechwood soil environment based on chosen soil properties, aiming at the Fageta paupera habitat" docx

... ese semi-natural European beech stands are situated in small-scale preserved areas, i.e. in the areas with a special statute of protection (S et al. 2004) as a part of Natura 2000 Net- work ... (heterogeneity of soils in FP and in BV) was realized in the same way but a diﬀ erent analysis was used. For the assessment of conﬁ dence intervals for each pr...

Ngày tải lên : 07/08/2014, 10:21

7
324
0

Báo cáo lâm nghiệp: "An analysis of ecophysiological responses to drought in American Chestnut" ppt

... Nagakura J., Shigenaga H., Akama A. , Takahashi M., Growth and transpiration of Japanese cedar (Cryptomeria japonica) and Hinoki cypress (Chamaecyparis obtusa) seedlings in response to soil water content, ... biomass, leaf area root ratio = leaf area divided by root biomass. Each variable is the mean of ten plants ± standard error of the mean. Variables Well-watered...

Ngày tải lên : 07/08/2014, 16:20

10
302
0

Báo cáo lâm nghiệp: " Genetic control of the time of transition from juvenile to mature wood in Pinus radiata D. Don" pdf

... Ability) and SCA (Speciﬁc Combining Ability) for radiata pine in Australia. De- tails of the Australia-Wide-Diallel program are given in Wu and Matheson [45]. Summary results on growth and form traits ... plots in 9 blocks planted in 1969 at Flynn, Gippsland, Victoria (PT47) and harvested at age 31 y. Soils at PT47 are characterised as sandy loam whereas at PT5042, they ar...

Ngày tải lên : 07/08/2014, 16:20

8
341
0

Báo cáo lâm nghiệp: "Eﬀects of the clear-cutting of a Douglas-ﬁr plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps

... indicates an interaction between spatial and temporal variability. The temporal variability mainly consisted in seasonal cycles and in the eﬀect of clear-cutting (decrease in concentrations and ... treatment of data All ﬁeld and laboratory measurements and the model-generated data used for budget calculations were administrated by an Access database (Microsoft)...

Ngày tải lên : 07/08/2014, 16:20

18
416
0

Báo cáo lâm nghiệp: "Chemical composition of the periderm in relation to in situ water absorption rates of oak, beech and spruce fine roots" doc

... sets of thermocouples and a thermopile. Axial water flow in the root is calculated for 15-min averages by solving the heat balance equation for the portion of heat transported with mass flow in axial ... explanation of a partial mismatch among root hydraulics, chemical and anatomical properties, and measured water absorption is the fact that addi- tional factors, w...

Ngày tải lên : 08/08/2014, 01:21

10
331
0

Báo cáo lâm nghiệp: " An overview of ecology and silviculture of indigenous oaks in France" ppt

... of stomata plays a part in the predawn water potentials at -3.5 to 4.0 MPa, whereas in Q robur and Q petraea, transpiration control occurs ear- lier during a drought and ... because of the quality and value of their wood or because of their geographic extension, or both. Two of these species are widespread in the hills and...

Ngày tải lên : 08/08/2014, 18:21

13
358
0

Báo cáo lâm nghiệp: "Eﬀect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

... traits.  is can probably be explained within the time frame these traits are mostly realised and within the time frame of the main incidence of the rust. Stem diameter and the main part of ... later dates, toward the end of the growing season, there was an extreme increase in the inoculum amount in the environment and a signiﬁ cant increase in in...

Ngày tải lên : 07/08/2014, 10:21

9
523
0